X-ray tube assembly rotation positioning driving mechanism

Abstract

The utility model discloses an X-ray tube assembly rotation positioning driving mechanism which comprises a shell, a rotation locking structure, a first manual positioning module, a second manual positioning module, a first motor driving module and a second motor driving module. The first manual positioning module can enable the rotary locking structure to drive the X-ray tube assembly to rotate under the manual operation, and can also enable the rotary locking structure to drive the X-ray tube assembly to rotate under the driving of the first motor driving module; the second manual positioning module is used as a manual component, so that the rotary locking structure drives the X-ray tube assembly to rotate; the second motor driving module is used for providing power for the rotary locking structure, so that the rotary locking structure drives the X-ray tube assembly to rotate; the method has the advantages that the stock pressure of manufacturers can be reduced, and the use cost of hospitals can be reduced when the requirements of doctors with different use preferences in the hospitals are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to drive mechanism especially X -ray tube assembly rotation positioning drive mechanism. BACKGROUND

[0002] Digital X -ray photography through X -ray machine is the medical image examination scheme that is used widely at present, plays the key role in the disease examination of chest, head and each joint part, in actual examination process, can be divided into two kinds of standing shooting and lying shooting according to the different station of patient, to meet different shooting position, need to adjust the angle direction of X -ray tube assembly of X -ray machine. The angle direction adjustment of X -ray tube assembly is realized through the rotation of X -ray tube assembly. The rotation of X -ray tube assembly is realized by installing X -ray tube assembly on the rotary drive mechanism, wherein the rotary drive mechanism is installed on the ball tube stand of X -ray machine, and the X -ray tube assembly can rotate relative to the rotary drive mechanism under stress.

[0003] The common X -ray tube assembly rotary drive mechanism on the market is mainly divided into manual rotary drive mechanism and electric rotary drive mechanism according to function. The manual rotary drive mechanism generally includes rotation locking structure and angle positioning structure, the rotation locking structure is used to realize the locking of X -ray tube assembly, when locking, X -ray tube assembly is fixed on the rotation locking structure, after unlocking, X -ray tube assembly can rotate relative to the rotation locking structure, the angle positioning structure is used to position the rotation angle of X -ray tube assembly, in use, the operator manually operates the rotation locking structure to realize the unlocking of X -ray tube assembly, then rotates X -ray tube assembly to the specified position, and then locks X -ray tube assembly. The electric rotary drive mechanism generally includes motor drive structure and limiting structure, and the motor drive structure includes a motor. In use, the motor is started to drive X -ray tube assembly to rotate to the specified position.

[0004] In actual examination process, the manual rotary drive mechanism and the electric rotary drive mechanism have more use scenarios, and hospitals will select and purchase X -ray tube assembly rotary mechanism according to the use preference of doctors and procurement budget. In order to meet the different procurement needs of hospitals, the manufacturers of X -ray tube assembly rotary drive mechanism need to independently store the manual rotary drive mechanism and the electric rotary drive mechanism, which leads to higher storage cost. In addition, the use preferences of different doctors in the same hospital are not necessarily the same, and when the procurement budget is less, the hospital can only purchase one of the manual rotary drive mechanism and the electric rotary drive mechanism, which cannot meet the needs of all doctors at this time, and when the procurement budget is more, although the manual rotary drive mechanism and the electric rotary drive mechanism can be purchased to meet the needs of all doctors, the use cost is higher. SUMMARY

[0005] The utility model wants to solve the technical problem to provide a kind of X-ray tube assembly rotating positioning drive mechanism, which can reduce the pressure of manufacturer's inventory, and reduce the use cost of hospital when meeting the different use preferences of doctors.

[0006] The utility model discloses a kind of X-ray tube assembly rotating positioning drive mechanism, including the shell that can be opened and the rotating locking structure for installing X-ray tube assembly, the rotating locking structure is installed on the shell, further include two kinds of manual positioning module and two kinds of motor drive module, two kinds of manual positioning module are respectively referred to as first kind of manual positioning module and second kind of manual positioning module, two kinds of motor drive module are respectively referred to as first kind of motor drive module and second kind of motor drive module, the first kind of manual positioning module does not have position reading function, the second kind of manual positioning module has position reading function, the first kind of motor drive module and the second kind of motor drive module all have position reading function;The first kind of manual positioning module is used to cooperate with the first kind of motor drive module and form hand-automatic integrated component, in the hand-automatic integrated component, the first kind of manual positioning module can be rotated under manual operation, the rotating locking structure drives X-ray tube assembly, also can be rotated under the drive of the first kind of motor drive module, the rotating locking structure drives X-ray tube assembly;The second kind of manual positioning module is used as manual component, rotates the rotating locking structure and drives X-ray tube assembly under manual operation;The second kind of motor drive module is used as electric component alone, provides power to the rotating locking structure, rotates the rotating locking structure and drives X-ray tube assembly.

[0007] The rotating locking structure includes a rotating shaft, a brake, two supporting bearings and two bearing seats, the two bearing seats are fixedly arranged in the shell, the two supporting bearings are one-to-one correspondingly arranged on the two bearing seats, the rotating shaft is arranged on the two supporting bearings, one end of the rotating shaft extends to the outside of the shell, and the end is fixedly provided with a mounting plate for mounting the X-ray tube assembly, the brake is arranged in the shell and fixedly arranged on the shell, and the brake is used for locking the rotating shaft.

[0008] The brake has a movable shaft and a fixed shaft, the movable shaft of the brake is connected with the rotating shaft, the fixed shaft of the brake is fixedly arranged on the shell, and the brake is a normally closed brake, when the brake is powered off, the movable shaft of the brake is attracted to the fixed shaft, at this time, the rotating shaft is locked and cannot rotate;When the brake is powered on, the movable shaft of the brake is separated from the fixed shaft, and the rotating shaft can rotate.

[0009] The first manual positioning module includes a dividing plate, a spring pressure arm, a pressure wheel and a spring. The dividing plate is used to be coaxially fixed on the rotating shaft. Four arc-shaped concave surfaces uniformly distributed at 90° are provided on the outer side of the dividing plate. The four arc-shaped concave surfaces are used to calibrate the 0° position, 90° position and -90° position of the rotating shaft. The spring pressure arm is arranged horizontally above the dividing plate. One end of the spring pressure arm is used to be installed on the housing through the pressure arm rotating shaft. The spring is arranged longitudinally. The upper end of the spring is connected to the other end of the spring pressure arm. The lower end of the spring is installed on the spring fixing shaft. The spring fixing shaft is used to be fixedly installed on On the shell, a pressure wheel shaft is fixedly installed on the spring pressure arm, and the pressure wheel is coaxially installed on the pressure wheel shaft and can rotate around the pressure wheel shaft under force. When the dividing plate rotates, the lower part of the pressure wheel can be embedded in the circular arc concave surface or leave the circular arc concave surface; the second manual positioning module is basically the same as the first manual positioning module, the only difference is that the second manual positioning module adds a position reading structure on the basis of the first manual positioning module, and the position reading structure is called the first position reading structure. The first position reading structure is used to connect with the other end of the rotating shaft to read the position of the rotating shaft.

[0010] The first position reading structure includes a first potentiometer and a mounting bracket, the mounting bracket is used to be fixed on the housing, the first potentiometer is fixed on the mounting bracket, and the shaft of the first potentiometer is used to be coaxially fixedly connected to the rotating shaft.

[0011] The first motor drive module includes a motor, a first gear, a second gear and a second position reading structure. The first gear is used to be coaxially fixed on the rotating shaft, the second gear is used to engage with the first gear, and the second position reading structure is used to read the position of the rotating shaft. The motor is a single-clutch motor, and the clutch of the single-clutch motor is a normally open clutch. The second gear is coaxially fixed on the output shaft of the clutch of the single-clutch motor; the structure of the second motor drive module can be exactly the same as or different from that of the first motor drive module. When the structure of the second motor drive module is different from that of the first motor drive module, the only difference is that the motor of the second motor drive module is an ordinary reduction motor. At this time, the second gear is coaxially fixed on the output shaft of the motor.

[0012] The first motor drive module and the second motor drive module, the motor is installed on the shell through the motor fixing plate, the motor is fixed on the motor fixing plate, the motor fixing plate is provided with a long circular hole, the motor fixing plate is installed on the shell through the fastener penetrating through the long circular hole, the relative position of the long circular hole and the fastener is adjusted, the position of the motor fixing plate is adjusted, and then the meshing gap of the first gear and the second gear is adjusted.

[0013] The first motor drive module and the second motor drive module, the motor is installed on the shell through the motor fixing plate, the motor is fixed on the motor fixing plate, the motor fixing plate is provided with a long circular hole, the motor fixing plate is installed on the shell through the fastener penetrating through the long circular hole, the relative position of the long circular hole and the fastener is adjusted, the position of the motor fixing plate is adjusted, and then the meshing gap of the first gear and the second gear is adjusted.

[0014] The first motor drive module and the second motor drive module, the second position reading structure includes a potentiometer fixing plate, a second potentiometer and a third gear, the potentiometer fixing plate is fixed on the motor fixing plate, the second potentiometer is fixed on the potentiometer fixing plate, and the third gear is installed on the shaft of the second potentiometer and used for meshing with the first gear.

[0015] The X-ray tube assembly rotating positioning drive mechanism further includes a cable connection structure for realizing electrical connection between the X-ray tube assembly rotating positioning drive mechanism and the X-ray machine, the cable connection structure includes a cable plug-in board, a wire passing connector and a corrugated pipe clamp for fixing a corrugated pipe, the cable plug-in board is fixed in the shell, the cable plug-in board is used for realizing butt joint of the cable led out of the X-ray machine and the cable led out of the X-ray tube assembly rotating positioning drive mechanism, the wire passing connector is fixed outside the shell, the wire passing connector is communicated with the inside of the shell, the wire passing connector is used for guiding the cable led out of the X-ray machine to the cable plug-in board, and the corrugated pipe clamp is installed on the wire passing connector and used for fixing the corrugated pipe for protecting the cable led out of the X-ray machine; the shell is further provided with a hook hole matched with a hook.

[0016] Compared with the prior art, the advantage of the present invention lies in that by setting two manual positioning modules, a first manual positioning module and a second manual positioning module, and two motor drive modules, a first motor drive module and a second motor drive module, the first manual positioning module does not have a position reading function, the second manual positioning module has a position reading function, and the first motor drive module and the second motor drive module both have a position reading function; the first manual positioning module is used to cooperate with the first motor drive module to form a manual-automatic integrated component, in which the first manual positioning module can, under manual operation, cause the rotation locking structure to drive the X-ray tube assembly to rotate, and can also, under the drive of the first motor drive module, cause the rotation locking structure to drive the X-ray tube assembly to rotate; the second manual positioning module is used as a manual component, and during manual operation The second motor drive module is used as an electric component alone to provide power to the rotary locking structure, so that the rotary locking structure drives the X-ray tube assembly to rotate. The shell and the rotary locking structure are used as a universal module. By selecting corresponding modules from the first manual positioning module, the second manual positioning module, the first motor drive module and the second motor drive module and combining them with the universal module, the manual rotary drive mechanism, the electric rotary drive mechanism and the manual-automatic rotary drive mechanism can be respectively realized. Therefore, the utility model uses modular design to stock each module according to market needs, and then assembles the modules according to the actual needs of the hospital. It can reduce the stocking pressure of the manufacturer and provide a manual-automatic rotary drive mechanism for the hospital to choose, thereby reducing the hospital's usage cost while meeting the needs of doctors with different usage preferences in the hospital. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of the rotational positioning drive mechanism of the X-ray tube assembly of the present invention;

[0018] Figure 2 This is a structural diagram of a universal module of the X-ray tube assembly rotation positioning drive mechanism of the present invention;

[0019] Figure 3 This is an exploded view of a universal module of the X-ray tube assembly rotation positioning drive mechanism of the present invention;

[0020] Figure 4 This is a structural schematic diagram of a first manual positioning module of the X-ray tube assembly rotation positioning drive mechanism of the present invention;

[0021] Figure 5 This is a structural schematic diagram of a second manual positioning module of the X-ray tube assembly rotation positioning drive mechanism of the present invention;

[0022] Figure 6This is a partial exploded view of the first motor drive module of the X-ray tube assembly rotation positioning drive mechanism of the present invention;

[0023] Figure 7 This is a partial exploded view of the second motor drive module of the X-ray tube assembly rotation positioning drive mechanism of the present invention;

[0024] Figure 8 This is a schematic diagram of the structure of the X-ray tube assembly rotation positioning drive mechanism of the present invention to realize the manual-automatic rotation drive mechanism;

[0025] Figure 9 This is a schematic diagram of the structure of the electric rotation drive mechanism for the X-ray tube assembly rotation positioning drive mechanism of the present invention;

[0026] Figure 10 This is a structural diagram of a manual rotation drive mechanism implemented by the X-ray tube assembly rotation positioning drive mechanism of the present invention. DETAILED DESCRIPTION

[0027] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0028] Example 1: Figure 1 As shown, an X-ray tube assembly rotation positioning drive mechanism includes an openable housing 1 and a rotation locking structure 2 for installing the X-ray tube assembly, the rotation locking structure 2 is installed on the housing 1, and also includes two manual positioning modules and two motor drive modules, the two manual positioning modules are respectively referred to as a first manual positioning module 3 and a second manual positioning module 4, and the two motor drive modules are respectively referred to as a first motor drive module 5 and a second motor drive module 6. The first manual positioning module 3 does not have a position reading function, the second manual positioning module 4 has a position reading function, and the first motor drive module 5 and the second motor drive module 6 both have Position reading function; the first manual positioning module 3 is used to cooperate with the first motor drive module 5 to form a manual-automatic integrated component. In the manual-automatic integrated component, the first manual positioning module 3 can make the rotation locking structure 2 drive the X-ray tube assembly to rotate under manual operation, and can also make the rotation locking structure 2 drive the X-ray tube assembly to rotate under the drive of the first motor drive module 5; the second manual positioning module 4 is used as a manual component, and under manual operation, the rotation locking structure 2 drives the X-ray tube assembly to rotate; the second motor drive module 6 is used as a separate electric component to provide power to the rotation locking structure 2, so that the rotation locking structure 2 drives the X-ray tube assembly to rotate.

[0029] In this embodiment, the shell 1 and the rotation locking structure 2 are used as general modules, and corresponding modules are selected from the first manual positioning module 3, the second manual positioning module 4, the first motor driving module 5 and the second motor driving module 6 to combine with the general modules, so as to realize the manual rotation driving mechanism, the electric rotation driving mechanism and the manual-automatic integrated rotation driving mechanism, respectively. Therefore, the modules can be prepared according to market needs, and the modules can be assembled according to actual needs of hospitals. The manual rotation driving mechanism and the electric rotation driving mechanism do not need to be prepared separately, which can not only reduce the preparation pressure of manufacturers, but also provide the manual-automatic integrated rotation driving mechanism for hospitals that have both manual operation and automatic operation needs, so as to reduce the use cost of hospitals when meeting the needs of doctors with different use preferences.

[0030] Embodiment two: this embodiment is basically the same as embodiment one, the difference is that, as shown in Figure 2 and Figure 3 In this embodiment, the rotation locking structure 2 includes a rotating shaft 7, a brake 8, two supporting bearings 9 and two bearing seats 10. The two bearing seats 10 are fixed at intervals in the shell 1, the two supporting bearings 9 are installed one by one on the two bearing seats 10, the rotating shaft 7 is installed on the two supporting bearings 9, one end of the rotating shaft 7 extends to the outside of the shell 1, and the end is fixedly provided with a mounting plate 11 for mounting the X-ray tube assembly. The brake 8 is located in the shell 1 and is mounted on the shell 1. The brake 8 is used to lock the rotating shaft 7.

[0031] In this embodiment, the brake 8 has a moving shaft and a fixed shaft. The moving shaft of the brake 8 is connected with the rotating shaft 7, and the fixed shaft of the brake 8 is fixed on the shell 1. The brake 8 is a normally closed brake. When the brake 8 is powered off, the moving shaft of the brake 8 is attracted to the fixed shaft, at this time the rotating shaft 7 is locked and cannot rotate. When the brake 8 is powered on, the moving shaft of the brake 8 is separated from the fixed shaft, and the rotating shaft 7 can rotate.

[0032] The X-ray tube assembly rotation positioning driving mechanism of this embodiment further includes a cable connection structure for realizing the electrical connection between the X-ray tube assembly rotation positioning driving mechanism and the X-ray machine. The cable connection structure includes a cable mating plate 12, a wire passing connecting piece 13 and a corrugated pipe clamp 14 for fixing the corrugated pipe. The cable mating plate 12 is fixed in the shell 1 and is used to realize the butt joint of the cable led out of the X-ray machine and the cable led out of the X-ray tube assembly rotation positioning driving mechanism. The wire passing connecting piece 13 is fixed on the outside of the shell 1 and communicates with the inside of the shell 1. The wire passing connecting piece 13 is used to guide the cable led out of the X-ray machine to the cable mating plate 12. The corrugated pipe clamp 14 is installed on the wire passing connecting piece 13 and is used to fix the corrugated pipe for protecting the cable led out of the X-ray machine. The shell 1 is also provided with a hook hole matched with a hook.

[0033] In this embodiment, when installing the X-ray tube assembly rotation and positioning drive mechanism onto the tube column of the X-ray machine, a hook is provided on the tube column. The X-ray tube assembly rotation and positioning drive mechanism only needs to be lifted onto the hook on the tube column and then secured with screws. This significantly saves manpower and time, reduces tangential stress on the screws, and increases the service life of the screws. The cable connection structure primarily facilitates the connection and removal of cables. The cables leading from the X-ray tube assembly rotation and positioning drive mechanism are installed on the cable mating plate 12. The electrical cables leading from the X-ray machine, after passing through the corrugated tube clamp 14 and the wire connector 13, need only be installed on the cable mating plate 12 according to the wire markings pre-set on the cable mating plate 12, thereby increasing the ease of assembly and disassembly of the X-ray tube assembly rotation and positioning drive mechanism.

[0034] Example 3: This example is basically the same as Example 2, except that: Figure 4 As shown, in this embodiment, the first manual positioning module 3 includes a dividing plate 15, a spring pressure arm 16, a pressure wheel 17 and a spring 18. The dividing plate 15 is used to be coaxially fixed on the rotating shaft 7. Four arc-shaped concave surfaces 19 are evenly distributed at 90° on the outer surface of the dividing plate 15. The four arc-shaped concave surfaces 19 are used to calibrate the 0° position, 90° position and -90° position of the rotating shaft 7. The spring pressure arm 16 is horizontally arranged above the dividing plate 15. One end of the spring pressure arm 16 is used to rotate the shaft 2 through the pressure arm. 0 is installed on the housing 1, the spring 18 is arranged longitudinally, the upper end of the spring 18 is connected to the other end of the spring pressure arm 16, the lower end of the spring 18 is installed on the spring fixed shaft 21, the spring fixed shaft 21 is used to be fixedly installed on the housing 1, the spring pressure arm 16 is fixedly mounted with a pressure wheel shaft 22, the pressure wheel 17 is coaxially mounted on the pressure wheel shaft 22 and can rotate around the pressure wheel shaft 22 when the indexing plate 15 rotates, the lower part of the pressure wheel 17 can be embedded in the arc-shaped concave surface 19 or leave the arc-shaped concave surface 19; Figure 5As shown, the second manual positioning module 4 is basically the same as the first manual positioning module 3, and the difference is that the second manual positioning module 4 adds a position reading structure on the basis of the first manual positioning module 3, which is called the first position reading structure, and the first position reading structure is used to be connected with the other end of the rotating shaft 7 to read the position of the rotating shaft 7. Among them, the X-ray tube assembly radiation window is facing the detector in the X-ray machine's photographic bed, which is defined as the 0° position of the rotating shaft 7; if the detector stand is placed on the left side of the X-ray machine, the standing position refers to the position of the X-ray tube assembly radiation window perpendicular to the ground, at this time the X-ray tube assembly radiation window is facing the detector in the detector stand, which is defined as the 90° position of the rotating shaft 7, if the detector stand is placed on the right side of the X-ray machine, the standing position refers to the position of the X-ray tube assembly radiation window perpendicular to the ground, at this time the X-ray tube assembly radiation window is facing the detector in the detector stand, which is defined as the -90° position of the rotating shaft 7. Thus, the rotating shaft 7 either rotates between 0° position and 90° position, or rotates between 0° position and -90° position, only two of the four arc-shaped concave surfaces 19 on the outer side of the index plate 15 will be in action, and the setting of the four arc-shaped concave surfaces 19 can facilitate the positioning of the index plate 15.

[0035] In this embodiment, the first position reading structure includes a first potentiometer 23 and a mounting bracket 24, the mounting bracket 24 is used to be fixed on the shell 1, and the first potentiometer 23 is fixed on the mounting bracket 24, and the shaft of the first potentiometer 23 is used to be coaxially fixedly connected with the rotating shaft 7.

[0036] Embodiment four: this embodiment is basically the same as embodiment three, the difference is that: Figure 6 As shown, the first motor drive module 5 includes a motor 25, a first gear 26, a second gear 27, and a second position reading structure, the first gear 26 is used to be coaxially fixed on the rotating shaft 7, the second gear 27 is used to be engaged with the first gear 26, the second position reading structure is used to read the position of the rotating shaft 7, the motor 25 is a single clutch motor, and the clutch of the single clutch motor is a normally open clutch, and the second gear 27 is coaxially fixed on the output shaft of the clutch of the single clutch motor; the structure of the second motor drive module 6 can be completely the same as that of the first motor drive module 5, or it can be different, such as Figure 7 As shown, when the structure of the second motor drive module 6 is different from that of the first motor drive module 5, the difference is only that the motor 25 of the second motor drive module 6 is a common speed reduction motor, and at this time the second gear 27 is coaxially fixed on the output shaft of the motor 25.

[0037] In the embodiment, the motor 25 in the first motor driving module 5 and the second motor driving module 6 is installed on the shell 1 through the motor fixing plate 28, the motor 25 is fixed on the motor fixing plate 28, the long circular hole 29 is arranged on the motor fixing plate 28, the motor fixing plate 28 is installed on the shell 1 through the fastener passing through the long circular hole 29, the relative position of the long circular hole 29 and the fastener is adjusted, the position of the motor fixing plate 28 is adjusted, and then the meshing gap of the first gear 26 and the second gear 27 is adjusted.

[0038] In the embodiment, the first motor driving module 5 and the second motor driving module 6 further include a limiting structure for limiting the rotation angle of the rotating shaft 7, the limiting structure includes a cam 30, a limiting switch 31 for electrically limiting the rotating shaft 7, and a limiting block 32 for mechanically limiting the rotating shaft 7, the limiting switch 31 and the limiting block 32 are respectively installed on the motor fixing plate 28, the limiting switch 31 is used to be connected with the X-ray machine, and a closing signal is fed back to the X-ray machine, the X-ray machine can issue an alarm after receiving the closing signal, the cam 30 is used to be fixed on the rotating shaft 7, in the rotation process of the rotating shaft 7, the protruding end of the cam 30 will hit the limiting switch 31 and the limiting block 32 in turn, when the protruding end of the cam 30 hits the limiting switch 31, the limiting switch 31 generates a closing signal and feeds back to the X-ray machine.

[0039] In the embodiment, the second position reading structure includes a potentiometer fixing plate 33, a second potentiometer 34 and a third gear 35 in the first motor driving module 5 and the second motor driving module 6, the potentiometer fixing plate 33 is fixed on the motor fixing plate 28, the second potentiometer 34 is fixed on the potentiometer fixing plate 33, and the third gear 35 is installed on the shaft of the second potentiometer 34 and used to mesh with the first gear 26.

[0040] In the embodiment, as shown in FIG. 4, the first motor driving module 5 and the second motor driving module 6 are arranged on the shell 1, the first motor driving module 5 and the second motor driving module 6 are arranged on the shell 1 through the motor fixing plate 28, the motor 25 is fixed on the motor fixing plate 28, the long circular hole 29 is arranged on the motor fixing plate 28, the motor fixing plate 28 is installed on the shell 1 through the fastener passing through the long circular hole 29, the relative position of the long circular hole 29 and the fastener is adjusted, the position of the motor fixing plate 28 is adjusted, and then the meshing gap of the first gear 26 and the second gear 27 is adjusted. Figure 8As shown, the first manual positioning module 3 cooperates with the first motor driving module 5 to form a manual-automatic integrated component, which forms a manual-automatic rotating driving mechanism with the universal module. At this time, one end of the spring pressing arm 16 of the first manual positioning module 3 is installed on the shell 1 through the pressing arm rotating shaft 20, the spring fixing shaft 21 is fixedly installed on the shell 1, the position of the index plate 15 is adjusted so that the three arc-shaped concave surfaces 19 are located at the 0° position, the 90° position and the -90° position of the rotating shaft 7 respectively, the first gear 26 of the first motor driving module 5 is coaxially fixed on the rotating shaft 7, the second gear 27 is engaged with the first gear 26, the motor 25 is a single clutch motor, under the condition that the clutch of the single clutch motor is not powered, the motor 25 of the single clutch motor cannot output torque when powered, and the motor 25 of the single clutch motor can output torque when powered after the clutch is attracted. When the manual-automatic rotating driving mechanism needs to be manually operated, the clutch and the motor 25 of the single clutch motor are not powered at this time, the output shaft of the clutch is disconnected with the motor 25 of the single clutch motor, the movable shaft of the brake 8 is separated from the fixed shaft, the rotating shaft 7 rotates when the manual operation mounting plate 11 is manually operated, at the same time, the clutch and the X-ray tube assembly of the single clutch motor rotate synchronously, and the motor 25 of the single clutch motor does not hinder the rotation of the rotating shaft 7. The position of the rotating shaft 7 is read through the second position reading structure, and when the position is adjusted to the required position, the brake 8 is powered off, the movable shaft of the brake 8 is attracted to the fixed shaft at this time, the rotating shaft 7 is locked and cannot rotate, and the X-ray tube assembly is adjusted to the required position and can perform shooting work. When the manual-automatic rotating driving mechanism needs to be electrically operated, the clutch and the motor 25 of the single clutch motor are powered at this time, the output shaft of the clutch is attracted to the motor 25 of the single clutch motor, the brake 8 is powered, the movable shaft of the brake 8 is separated from the fixed shaft, the rotating position is set at the single clutch motor, the single clutch motor is started, the rotating shaft 7 is rotated by the first gear 26 and the second gear 27, and the X-ray tube assembly is rotated synchronously. When the rotating shaft 7 rotates to the set rotating position, the brake 8 is powered off, the movable shaft of the brake 8 is attracted to the fixed shaft, and the single clutch motor is powered off. At this time, the X-ray tube assembly is adjusted to the required position and can perform shooting work.

[0041] In the embodiment, as shown in Figure 9As shown in the figure, the second motor driving module 6 is used as an electric component, and the electric component and the universal module constitute an electric rotary driving mechanism, the motor fixing plate 28 is installed on the shell 1 through the fastener passing through the long circular hole 29, the relative position of the long circular hole 29 and the fastener is adjusted to make the meshing gap of the first gear 26 and the second gear 27 suitable, at this time, the brake 8 is powered on, the movable shaft of the brake 8 is separated from the fixed shaft, and the rotation position of the motor 25 of the second motor driving module 6 is set, the motor 25 of the second motor driving module 6 is powered on after being started, the motor 25 of the second motor driving module 6 drives the rotating shaft 7 to rotate through the first gear 26 and the second gear 27, and simultaneously drives the X-ray tube assembly to rotate synchronously, when rotating to the set rotation position, the brake 8 is powered off, the movable shaft of the brake 8 is attracted to the fixed shaft, and the motor 25 of the second motor driving module 6 is powered off, at this time, the X-ray tube assembly is adjusted to the required position and can perform shooting work.

[0042] In the embodiment, as shown in the figure, Figure 10 The second manual positioning module 4 is used as a manual component, and the manual component and the universal module constitute a manual rotary driving mechanism, at this time, one end of the spring pressing arm 16 of the second manual positioning module 4 is installed on the shell 1 through the pressing arm rotating shaft 20, the spring fixing shaft 21 is fixedly installed on the shell 1, the position of the index plate 15 is adjusted so that the three arc-shaped concave surfaces 19 are located at the 0° position, the 90° position and the -90° position of the rotating shaft 7 respectively, the mounting frame 24 of the first position reading structure is fixed on the shell 1, and the shaft of the first potentiometer 23 is coaxially fixedly connected with the rotating shaft 7, at this time, the brake 8 is powered on, the movable shaft of the brake 8 is separated from the fixed shaft, and the mounting plate 11 is manually operated, the rotating shaft 7 rotates, and at the same time, the X-ray tube assembly rotates synchronously, the position of the rotating shaft 7 is read through the first position reading structure, when the position is adjusted to the required position, the brake 8 is powered off, the movable shaft of the brake 8 is attracted to the fixed shaft, at this time, the rotating shaft 7 is locked and cannot rotate, and the X-ray tube assembly is adjusted to the required position and can perform shooting work.

[0043] As shown above, the X-ray tube assembly rotary positioning driving mechanism of the utility model can realize the manual rotary driving mechanism, the electric rotary driving mechanism and the manual and electric integrated rotary driving mechanism through the modular design, that is, the cost pressure of manufacturers can be reduced, and diversified selection can be provided for hospitals.

Claims

1. A rotating positioning drive mechanism for an X-ray tube assembly, comprising an openable housing and a rotation locking structure for mounting an X-ray tube assembly, said rotation locking structure being mounted on said housing, characterized in that Also include two kinds of manual positioning module and two kinds of motor drive module, two kinds of manual positioning module is called first kind of manual positioning module and second kind of manual positioning module respectively, two kinds of motor drive module is called first kind of motor drive module and second kind of motor drive module respectively, the first kind of manual positioning module does not have position reading function, the second kind of manual positioning module has position reading function, the first kind of motor drive module and the second kind of motor drive module both have position reading function;The first kind of manual positioning module is used to cooperate with the first kind of motor drive module to constitute a manual-automatic integrated component, in the manual-automatic integrated component, the first kind of manual positioning module can drive the rotating locking structure to rotate X-ray tube assembly under manual operation, and also can drive the rotating locking structure to rotate X-ray tube assembly under the drive of the first kind of motor drive module;The second kind of manual positioning module is used as a manual component to rotate the rotating locking structure to drive X-ray tube assembly under manual operation;The second kind of motor drive module is used as an electric component alone to provide power to the rotating locking structure to drive the rotating locking structure to rotate X-ray tube assembly.

2. A rotating positioning drive mechanism for an X-ray tube assembly according to claim 1, characterized in that The rotating locking structure includes a rotating shaft, a brake, two supporting bearings and two bearing seats, two bearing seats are fixedly spaced in the housing, two supporting bearings are installed one by one on the two bearing seats, the rotating shaft is installed on the two supporting bearings, one end of the rotating shaft extends to the outside of the housing, and the end is fixedly provided with a mounting plate for mounting the X-ray tube assembly, the brake is located in the housing and is installed on the housing, and the brake is used to lock the rotating shaft.

3. A rotating positioning drive mechanism for an X-ray tube assembly according to claim 2, characterized in that The brake has a moving shaft and a fixed shaft, the moving shaft of the brake is connected with the rotating shaft, the fixed shaft of the brake is fixed on the housing, the brake is a normally closed brake, when the brake is powered off, the moving shaft of the brake is attracted to its fixed shaft, at this time the rotating shaft is locked and cannot rotate;When the brake is powered on, the moving shaft of the brake is separated from its fixed shaft, and the rotating shaft can rotate.

4. A rotating positioning drive mechanism for an X-ray tube assembly according to claim 2, characterized in that The first manual positioning module comprises a protractor, a spring pressing arm, a pressing wheel and a spring. The protractor is coaxially fixed on the rotating shaft. Four circular arc concaves are arranged on the outer side of the protractor and are uniformly distributed at an angle of 90°. The four circular arc concaves are used to mark the 0° position, 90° position and -90° position of the rotating shaft. The spring pressing arm is transversely arranged above the protractor. One end of the spring pressing arm is installed on the shell through a pressing arm rotating shaft. The spring is longitudinally arranged. The upper end of the spring is connected with the other end of the spring pressing arm. The lower end of the spring is installed on a spring fixing shaft which is fixedly installed on the shell. A pressing wheel shaft is fixedly installed on the spring pressing arm. The pressing wheel is coaxially installed on the pressing wheel shaft and can rotate around the pressing wheel shaft under stress. When the protractor rotates, the lower part of the pressing wheel can be embedded in the circular arc concave or separated from the circular arc concave. The second manual positioning module is basically the same as the first manual positioning module. The difference is that the second manual positioning module adds a position reading structure, which is called a first position reading structure, on the basis of the first manual positioning module. The first position reading structure is used to be connected with the other end of the rotating shaft to read the position of the rotating shaft.

5. A rotating positioning drive mechanism for an X-ray tube assembly according to claim 4, characterized in that The first position reading structure comprises a first potentiometer and a mounting bracket. The mounting bracket is fixed on the shell. The first potentiometer is fixed on the mounting bracket. The shaft of the first potentiometer is coaxially fixedly connected with the rotating shaft.

6. A rotating positioning drive mechanism for an X-ray tube assembly according to claim 4, characterized in that The first motor driving module comprises a motor, a first gear, a second gear and a second position reading structure. The first gear is coaxially fixed on the rotating shaft. The second gear is used to engage with the first gear. The second position reading structure is used to read the position of the rotating shaft. The motor is a single clutch motor. The clutch of the single clutch motor is a normally open clutch. The second gear is coaxially fixed on the output shaft of the clutch of the single clutch motor. The structure of the second motor driving module can be completely the same as that of the first motor driving module, or can be different. When the structure of the second motor driving module is different from that of the first motor driving module, the difference is that the motor of the second motor driving module is a common speed reduction motor. At this time, the second gear is coaxially fixed on the output shaft of the motor.

7. A rotating positioning drive mechanism for an X-ray tube assembly according to claim 6, characterized in that The motor is installed on the shell through the motor fixing plate, the motor is fixed on the motor fixing plate, a long circular hole is arranged on the motor fixing plate, the motor fixing plate is installed on the shell through the fastener penetrating through the long circular hole, the relative position of the long circular hole and the fastener is adjusted, the position of the motor fixing plate is adjusted, and then the meshing gap of the first gear and the second gear is adjusted.

8. A rotating positioning drive mechanism for an X-ray tube assembly according to claim 7, characterized in that The first motor drive module and the second motor drive module further include a limiting structure for limiting the rotation angle of the rotating shaft, the limiting structure includes a cam, a limiting switch for electrically limiting the rotating shaft, and a limiting block for mechanically limiting the rotating shaft, the limiting switch and the limiting block are respectively installed on the motor fixing plate, the limiting switch is used to be connected with the X-ray machine, and a closing signal is fed back to the X-ray machine, the X-ray machine can issue an alarm after receiving the closing signal, and the cam is used to be fixed on the rotating shaft, during rotation of the rotating shaft, the protruding end of the cam will hit the limiting switch and the limiting block in sequence, and when the protruding end of the cam hits the limiting switch, the limiting switch generates a closing signal and feeds back to the X-ray machine.

9. A rotating positioning drive mechanism for an X-ray tube assembly according to claim 7, characterized in that The second position reading structure includes a potentiometer fixing plate, a second potentiometer and a third gear, the potentiometer fixing plate is fixed on the motor fixing plate, the second potentiometer is fixed on the potentiometer fixing plate, and the third gear is installed on the shaft of the second potentiometer and used to mesh with the first gear.

10. A rotating positioning drive mechanism for an X-ray tube assembly according to claim 8, characterized in that The cable connection structure includes a cable plug-in plate, a wire passing connector and a corrugated pipe clamp for fixing a corrugated pipe, the cable plug-in plate is fixed in the shell, the cable plug-in plate is used to realize the butt joint of the cable led out of the X-ray machine and the cable led out of the X-ray tube assembly rotating positioning drive mechanism, the wire passing connector is fixed outside the shell, the wire passing connector communicates with the inside of the shell, the wire passing connector is used to guide the cable led out of the X-ray machine to the cable plug-in plate, the corrugated pipe clamp is installed on the wire passing connector and used to fix the corrugated pipe for protecting the cable led out of the X-ray machine, and the shell is further provided with a hook hole used to match with a hook.

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