CN214804815U - X-ray bed surface motion mechanism - Google Patents

Abstract

The utility model discloses an X ray bed surface motion, include: the base assembly comprises a rack and at least one group of guide rails, and the rack and the guide rails are both vertically arranged; the bed body assembly comprises a bed body and a supporting plate, the bed body is arranged on the supporting plate, the supporting plate is provided with a plurality of sliding blocks, and the sliding blocks are movably arranged on the guide rail; the first driving device is arranged on the supporting plate and comprises an output shaft, a transmission gear is arranged at one end of the output shaft, and the transmission gear is meshed with the rack. The X-ray bed surface motion mechanism of the utility model has the advantages of accurate positioning, stable transmission and the like, and can meet the operation requirements of different positions required by doctors during examination.

Description

X-ray bed surface motion mechanism

Technical Field

The utility model relates to the technical field of medical equipment, in particular to X-ray bed surface motion mechanism.

Background

The medical X-ray equipment is one of the equipment with more common clinical application, adopts X-rays as a detection and diagnosis basis, controls the equipment which is used for carrying out radio examination and radiotherapy on human tissues by the X-rays, and can help doctors to judge the specific state of illness of patients. The traditional medical X-ray machine has the problem that the position of a bed surface is uncontrollable in the using process; when the height of the bed surface is too high, the patient is not easy to lie on the diagnosis bed for shooting, and when the bed surface is too low, the operation of a doctor and the positioning of the patient are inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an X-ray bed surface motion mechanism, which realizes the free movement of the bed surface.

According to the utility model discloses an X ray bed surface motion, include: the base assembly comprises a rack and at least one group of guide rails, and the rack and the guide rails are both vertically arranged; the bed body assembly comprises a bed body and a supporting plate, the bed body is arranged on the supporting plate, the supporting plate is provided with a plurality of sliding blocks, and the sliding blocks are movably arranged on the guide rail; the first driving device is arranged on the supporting plate and comprises an output shaft, a transmission gear is arranged at one end of the output shaft, and the transmission gear is meshed with the rack.

According to the utility model discloses X ray bed surface motion has following beneficial effect at least: through the meshing that utilizes rack and drive gear, order about drive gear simultaneously through first drive arrangement and rotate for the rack, because the rack is fixed in the backup pad, drive gear's relative rotation orders about a body subassembly and removes along the rack to realize the up-and-down motion of a body subassembly along the guide rail, the utility model discloses an X ray bed surface motion has advantages such as the location is accurate, the transmission is stable, the operation requirement of the different positions that needs when realizing the doctor inspection.

According to some embodiments of the invention, the first drive arrangement further comprises: the mounting plate is connected with the support plate; the speed reducing motor is arranged on the mounting plate and is suitable for driving the output shaft to rotate; the bearing is sleeved on the output shaft, and a flange is arranged between the bearing and the mounting plate. Through setting up structures such as flange and bearing, can guarantee the bearing capacity of backup pad and reduce installation space.

According to some embodiments of the present invention, the bearing further comprises a retainer ring, the retainer ring is disposed on the output shaft and abuts against the side portion of the bearing. The retaining ring is used for limiting the axial freedom degree of the bearing and has a limiting effect.

According to some embodiments of the invention, the bearing is a deep groove ball bearing. The deep groove ball bearing has the advantages of small friction resistance, high rotating speed and the like, can be used for parts bearing radial loads or combined loads acted simultaneously in the radial direction and the axial direction, and ensures the bearing capacity.

According to the utility model discloses a some embodiments still include the determine module, and the determine module includes: a potentiometer; the gear set is arranged at the other end of the output shaft and is connected with the potentiometer; the output shaft is suitable for driving the potentiometer to rotate. The potentiometer rotates along with the output shaft under the driving of the gear set, and the rotation quantity of the output shaft is detected through the potential change, so that the up-and-down movement quantity of the bed body assembly is reflected.

According to some embodiments of the present invention, the base assembly further comprises: a base provided with a mounting hole; one side of the gear disc is provided with a rotating shaft which is rotatably arranged in the mounting hole; the second driving device is arranged on the base and comprises a gear shaft, and the gear shaft is arranged at the output end of the second driving device and is meshed with the gear disc; the rack and the guide rail are both arranged on the other side of the gear disc. Through setting up the bed body on the toothed disc, the gear shaft that utilizes drive arrangement to drive orders about the toothed disc and rotates to realize the rotation of the control bed body, the turned angle of the bed body can be controlled accurately to the meshing of toothed disc and gear shaft, guarantees accurate location, the operation requirement of the different angles that needs when realizing the doctor inspection.

According to the utility model discloses a some embodiments still include two sets of first antifriction bearing, and two sets of first antifriction bearing all set up on the gear shaft and set up respectively in the both sides of toothed disc. The tangential force borne by the gear shaft and the gear disc during meshing transmission can be effectively distributed to the first rolling bearing, the tangential force borne by the gear shaft and the second driving device is reduced, and the service life of the equipment is prolonged.

According to the utility model discloses a some embodiments are provided with the bearing frame on the base, and on the gear shaft was located to bearing frame one side opening and cover, the inner wall of first antifriction bearing butt bearing frame. Because the tangential force that receives is the biggest at the exit that second drive arrangement and gear shaft are connected, the disconnected axle phenomenon often can appear, through bearing frame and first rolling bearing structure, has changed the gear shaft atress condition, prevents the gear shaft fracture.

According to some embodiments of the invention, the second driving device further comprises: a drive motor; a reduction gearbox; the transmission belt is connected with the output end of the driving motor and the input shaft of the reduction gearbox; the gear shaft is arranged at the output end of the reduction box. The reduction gearbox is arranged to reduce the rotating speed output by the driving motor, so that the shaking of the bed body caused by overhigh rotating speed is prevented, and the stability of the bed body is ensured while the effect of improving the rotating precision is achieved.

According to the utility model discloses a some embodiments still include two sets of second antifriction bearing, and two sets of second antifriction bearing overlap respectively locates the inner wall of both ends and butt mounting hole about the pivot. The tangential stress generated by the mutual motion between the rotating shaft and the mounting hole can be effectively and respectively provided for the second rolling bearings, so that the bearing capacity of the rotating shaft is improved, and the rotating shaft is prevented from being broken.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a partial schematic view of the base assembly and the bed assembly of the present embodiment;

FIG. 3 is a cross-sectional view taken at A in FIG. 2;

FIG. 4 is a rear view of the base assembly of the present embodiment;

FIG. 5 is a left side sectional view of the base assembly of the present embodiment;

reference numerals: a base assembly 100; a rack 110; a guide rail 120; a base 130; a mounting hole 131; a gear plate 140; a rotating shaft 141; a second driving device 150; a gear shaft 151; a drive motor 152; a reduction gearbox 153; a belt 154; a first rolling bearing 160; a bearing housing 170; a second rolling bearing 180; a bed assembly 200; a bed 210; a support plate 220; a slider 230; a first driving device 300; an output shaft 310; a drive gear 320; a mounting plate 330; a reduction motor 340; a bearing 350; a flange 360; a retainer ring 370; a detection assembly 400; a potentiometer 410; and a gear set 420.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "lateral", "longitudinal", "vertical", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 and 2, the X-ray bed surface moving mechanism of the present embodiment includes a base assembly 100, a bed assembly 200, a first driving device 300, a second driving device 150, and a detection assembly 400.

Referring to fig. 2, 4, and 5, the base assembly 100 includes a base 130, a gear plate 140, a second driving device 150, a rack 110, and at least one set of guide rails 120, wherein a mounting hole 131 is formed in the base 130 along a horizontal direction, a rotating shaft 141 matched with the mounting hole 131 is formed at one side of the gear plate 140, the gear plate 140 is rotatably disposed on the base 130 through the matching of the rotating shaft 141 and the mounting hole 131, the second driving device 150 is disposed on the base 130, a gear shaft 151 is disposed at an output end of the second driving device 150, the gear shaft 151 is engaged with the gear plate 140, the second driving device 150 drives the gear shaft 151 to rotate, so as to drive the gear plate 140 to move, the rack 110 and the guide rails 120 are fixedly disposed at the other side of the gear plate 140 through bolts, and the rack 110 and the guide rails 120 are both disposed in parallel to each other in a vertical direction.

Preferably, referring to fig. 5, two sets of second rolling bearings 180 are sleeved on the rotating shaft 141, the two sets of second rolling bearings 180 are respectively disposed at two ends of the rotating shaft 141 and abut against an inner wall of the mounting hole 131, the second rolling bearings 180 are axially fixed in the mounting hole 131 through a limiting member, and tangential stresses generated by mutual motion between the rotating shaft 141 and the mounting hole 131 can be effectively and respectively applied to the second rolling bearings 180, so that the bearing capacity of the rotating shaft 141 is improved, and the rotating shaft 141 is prevented from being broken.

Preferably, referring to fig. 5, the limiting member is a circular nut and a circular nut washer which are matched with each other, the surface of the rotating shaft 141 may have threads, and the circular nut is fixed on the rotating shaft 141 through threaded connection and abuts against the second femoral support 350 through the circular nut washer so as to limit the horizontal movement freedom of the second rolling bearing 180. It should be noted that the limiting member of the present invention is not limited to the round nut and the round nut gasket structure in the embodiment, and the limiting member may also be other parts having limiting or fixing functions, such as a retaining ring.

Referring to fig. 4 and 5, the second driving device 150 includes a driving motor 152, a reduction gearbox 153, and a transmission belt 154, the driving motor 152 and the reduction gearbox 153 are both fixedly mounted on the base 130 through bolts, wherein the gear shaft 151 is disposed on an output shaft 310 of the reduction gearbox 153, the transmission belt 154 is simultaneously wound around an output end of the driving motor 152 and an input shaft of the reduction gearbox 153, the driving motor 152 drives the input shaft of the reduction gearbox 153 to rotate through the transmission belt 154, and the reduction gearbox 153 drives the gear shaft 151 to rotate to realize driving. It should be noted that the reduction gearbox 153 is a common device in the prior art, a plurality of transmission gears 320 are arranged inside the reduction gearbox 153, and the rotating speed is controlled by the transmission ratio between the transmission gears 320, so that the effect of reducing speed is achieved.

Preferably, referring to fig. 5, the gear rack further includes two sets of first rolling bearings 160, and the two sets of first rolling bearings 160 are respectively sleeved on the gear shaft 151 and are respectively disposed on two sides of the gear plate 140. The tangential force applied to the gear shaft 151 and the gear plate 140 during meshing transmission can be effectively distributed to the first rolling bearing 160, so that the tangential force applied to the gear shaft 151 and the second driving device 150 is reduced, and the service life of the equipment is prolonged.

Preferably, referring to fig. 5, a bearing block 170 is disposed on the base 130, the bearing block 170 is fixed on the base 130 by a bolt, one side of the bearing block 170 is open and sleeved on the gear shaft 151, wherein the gear shaft 151 and the gear plate 140 are engaged with each other at the opening of the bearing block 170. Because the tangential force applied at the outlet of the second driving device 150 connected with the gear shaft 151 is the largest, the phenomenon of shaft breakage often occurs, and the stress condition of the gear shaft 151 is improved through the structures of the bearing seat 170 and the first rolling bearing 160, so that the gear shaft 151 is prevented from being broken.

Preferably, the first rolling bearing is a deep groove ball bearing. The deep groove ball bearing has the advantages of small friction resistance, high rotating speed and the like, can be used for parts bearing radial loads or combined loads acted simultaneously in the radial direction and the axial direction, and ensures the bearing capacity.

Preferably, the driving motor is a forward and reverse rotating motor. The counter-rotating motor ensures bidirectional switchable rotation of the driving motor 152.

Referring to fig. 1, 2 and 3, the bed assembly 200 includes a bed 210 and a vertically disposed support plate 220, the bed 210 is fixed on the upper surface of the support plate 220 by bolts, one side of the support plate 220 is provided with a plurality of sliding blocks 230, the sliding blocks 230 are movably mounted on the guide rail 120, and the support plate 220 is adapted to move along the guide rail 120 by the cooperation of the sliding blocks 230 and the guide rail 120.

Preferably, referring to fig. 2, two sets of the sliding blocks 230 and the guide rails 120 are respectively provided in a one-to-one correspondence manner, the two sets of guide rails 120 are arranged in parallel, and the two sets of guide rails 120 can solve the problem of vibration when the bed surface is lifted and lowered, so as to ensure the stability of the movement of the bed body 210.

Referring to fig. 2 and 3, the first driving device 300 includes a mounting plate 330, a reduction motor 340, a bearing 350, and an output shaft 310, the mounting plate 330 is fixed to the other side of the support plate 220 by a bolt, the reduction motor 340 is fixed to the mounting plate 330 by a bolt, one end of the output shaft 310 is connected to an output end of the reduction motor 340, the other end of the output shaft 310 penetrates through the mounting plate 330 and the support plate 220 and is fixedly provided with a transmission gear 320, the transmission gear 320 is engaged with the rack 110, the reduction motor 340 operates to drive the output shaft 310 to rotate, the output shaft 310 drives the transmission gear 320 to rotate relative to the rack 110, and the rack 110 is fixed to the gear plate 140, and the relative rotation of the transmission gear 320 drives the bed assembly 200 to move along the rack 110, so as to realize the up-and-down movement of the bed assembly 200. The bearings 350 are arranged in two groups and are sleeved on the output shaft 310, the bearings 350 are connected with the mounting plate 330 through the flange 360, stable rotation of the output shaft 310 can be guaranteed through arrangement of the bearings 350 and the flange 360, and abrasion between parts is reduced.

Preferably, referring to fig. 3, a retainer ring 370 is further included, and the retainer ring 370 is sleeved on the output shaft 310 and abuts against the side wall of the bearing 350 so as to ensure the axial fixation of the bearing 350, and the retainer ring 370 in this embodiment is a resilient retainer ring 370 commonly used in the prior art.

Preferably, the bearing adopts a deep groove ball bearing.

Referring to fig. 2 and 3, the detecting assembly 400 includes a potentiometer 410 and a gear set 420, the potentiometer 410 is disposed on the reduction motor 340 through a mounting plate 330 of the potentiometer 410, in this embodiment, the gear set 420 includes a driving gear and a driven gear, wherein one end of the output shaft 310 is connected to an end cover through a bolt, the driving gear is mounted on the end cover, the driving gear and the end cover can rotate together with the output shaft 310, the driven gear is connected to the potentiometer 410 and is engaged with the driving gear, the rotation of the output shaft 310 is transmitted to the potentiometer 410 through the gear set 420, and the rotation amount of the output shaft 310 is detected through a potential change, so as to reflect the amount of up-and-down movement of the bed assembly 200.

In the description herein, references to the description of "some embodiments" mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An X-ray couch top motion mechanism, comprising:

the base assembly comprises a rack and at least one group of guide rails, and the rack and the guide rails are both vertically arranged;

the bed body assembly comprises a bed body and a supporting plate, the bed body is arranged on the supporting plate, the supporting plate is provided with a plurality of sliding blocks, and the sliding blocks are movably arranged on the guide rail;

the first driving device is arranged on the supporting plate and comprises an output shaft, a transmission gear is arranged at one end of the output shaft, and the transmission gear is meshed with the rack.

2. The X-ray couch top motion mechanism of claim 1 wherein the first drive means further comprises:

the mounting plate is connected with the support plate;

the speed reducing motor is arranged on the mounting plate and is suitable for driving the output shaft to rotate;

the bearing is sleeved on the output shaft, and a flange is arranged between the bearing and the mounting plate.

3. The X-ray couch surface motion mechanism of claim 2, further comprising a retainer ring sleeved on the output shaft and abutting against a side portion of the bearing.

4. The X-ray couch top motion mechanism of claim 2 or 3, wherein the bearings are deep groove ball bearings.

5. The X-ray couch top motion mechanism of claim 1 further comprising a detection assembly, said detection assembly comprising:

a potentiometer;

the gear set is arranged at the other end of the output shaft and is connected with the potentiometer;

the output shaft is suitable for driving the potentiometer to rotate.

6. The X-ray couch top motion mechanism of claim 1 wherein the base assembly further comprises:

a base provided with a mounting hole;

the gear disc is provided with a rotating shaft on one side, and the rotating shaft is rotatably arranged in the mounting hole;

the second driving device is arranged on the base and comprises a gear shaft, and the gear shaft is arranged at the output end of the second driving device and is meshed with the gear disc;

the rack and the guide rail are arranged on the other side of the gear disc.

7. The X-ray bed surface motion mechanism as claimed in claim 6, further comprising two sets of first rolling bearings, wherein the two sets of first rolling bearings are both disposed on the gear shaft and are respectively disposed on both sides of the gear plate.

8. The X-ray bed surface movement mechanism as claimed in claim 7, wherein a bearing seat is arranged on the base, one side of the bearing seat is open and sleeved on the gear shaft, and the first rolling bearing abuts against the inner wall of the bearing seat.

9. The X-ray couch top motion mechanism of claim 6 wherein the second drive means further comprises:

a drive motor;

a reduction gearbox;

the transmission belt is connected with the output end of the driving motor and the input shaft of the reduction gearbox;

the gear shaft is arranged at the output end of the reduction gearbox.

10. The X-ray bed surface movement mechanism of claim 6, further comprising two sets of second rolling bearings, wherein the two sets of second rolling bearings are respectively sleeved at the left and right ends of the rotating shaft and abut against the inner wall of the mounting hole.

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