CN201042103Y

CN201042103Y - C shape arm electric rotating machine

Info

Publication number: CN201042103Y
Application number: CNU2007200231196U
Authority: CN
Inventors: 温邦国; 王晓东
Original assignee: Shinva Medical Instrument Co Ltd
Current assignee: Shinva Medical Instrument Co Ltd
Priority date: 2007-06-05
Filing date: 2007-06-05
Publication date: 2008-03-26
Anticipated expiration: 2017-06-05

Abstract

The utility model relates to a C-shaped arm electric rotating mechanism, which is used for driving a C-shaped arm in a C-shaped arm X-ray machine of an integrated afterloading therapy system after being integrated to rotate. The utility model belongs to an auxiliary device of a medical facility which is provided with a C-shaped arm rotating shaft, a drive motor and a reduction box. The output shaft of the drive motor is connected with the input shaft of the reduction box, a driving gear is arranged on the output shaft of the reduction box, a driven gear on the C-shaped arm rotating shaft is meshed with the driving gear, a limit disc is arranged at one side of the driving gear, a limit switch is arranged on the limit disc, the driving gear is provided with a switch touching block which is suitable for the limit switch, the limit switch is connected with the input end of a control circuit, and the output end of the control circuit is connected with the main circuit of the drive motor. The utility model adopts the automatic electric control, the operation is simple and convenient, the position is accurate, the separation of doctors and patients can be realized, and the ray harm can be prevented. The utility model is safe and reliable, has high efficiency and stable mechanism system, thereby the afterloading machine therapy plan is more accurate.

Description

C shape arm electric rotary machine structure

Technical field

The utility model relates to a kind of C shape arm electric rotary machine structure, and the C shape arm that is used for driving the C shape arm X-ray production apparatus of rear-mounted integral therapy system is rotated, and belongs to the Medical Devices servicing unit.

Background technology

C shape arm X-ray production apparatus is used for situation about being used with rear-mounted integral therapeutic equipment, and the C shape arm of use is all through change, the manually rotation that rotatablely moves still of C shape arm.The X-ray production apparatus of present common rear-mounted integral therapy system mainly comprises support and C shape arm, and the two ends of C shape arm are placed X line combination head and image receiving system respectively.Base inner is provided with transmission device, the rotation of control C shape arm or mobile.When enforcement is treated the patient, need the doctor to operate control C shape arm and move by the button on the control panel.The deficiency that exists is, the control of C shape arm is not electric operating entirely, the for example manual operation at the scene that rotatablely moves of C shape arm, can not realize that doctors and patients separate, when the rear-mounted integral therapy system is worked, need pass in and out machine room several times and manually put the position, not only lose time, troublesome poeration, and cause radiohazard can for the medical personnel of long period of operation.

The utility model content

The purpose of this utility model is to provide a kind of C shape arm electric rotary machine structure, and electronic automatic control is easy and simple to handle, accurate positioning, and can realize that doctors and patients separate, safe and reliable.

C shape arm electric rotary machine structure described in the utility model, the rotating shaft of C shape arm is arranged, drive motors and reduction box are installed, the output shaft of drive motors connects the power shaft of reduction box, driving gear is installed on the output shaft of reduction box, driven gear in the rotating shaft of C shape arm is meshed with driving gear, driving gear one side is provided with position-arresting disk, position-arresting disk is provided with limit switch, driving gear is provided with the switch collision block that adapts with limit switch, limit switch connects the input of control circuit, and the output of control circuit connects the main circuit of drive motors.

Wherein:

Limit switch is provided with three, be 0 angle position and ± the miter angle position distribution.In driving gear when rotation,, the switch collision block is run into limit switch in certain stroke distances, and makes the limit switch closure, when having realized the rotation of C shape arm 0, ± the accurate location of 45 ° of three positions.

Position-arresting disk directly can be fixed on the reduction box compact conformation, simplification.

In conjunction with the relevant kinematic parameter of C shape arm rotation, choose the gearratio of suitable drive motors, reductor and driving gear and driven gear.Along with the rotation of driving gear, the switch collision block on the driving gear can touch limit switch, by the drive motors rotating of control circuit control, makes driven gear drive the continuous positive and negative rotation of C shape arm rotating shaft, realizes the left-right rotation of C shape arm.

The one power output drive motors that the 118783 model drive motors of the reliable Switzerland of drive motors and reduction box preferred properties Maxon company and the reduction box of 203123 models are formed, drive motors cooperates with reduction box, is combined into stable power output source.

In practice, as requested, equipped correspondent control circuits gets final product.

The utility model C shape arm electric rotary machine structure has adopted electronic automatic control, and is easy and simple to handle, and accurate positioning, and can realize that doctors and patients separate has prevented radio-hazard, and is safe and reliable, and efficient height, mechanical system are stable, make the afterloading unit treatment plan more accurate.

Description of drawings

Fig. 1 is the C shape arm X-ray production apparatus structural representation of the rear-mounted integral therapy system that relates to of the utility model.

Fig. 2 is the N portion enlarged drawing among Fig. 1.

Fig. 3 is a position-arresting disk part-structure schematic diagram in the utility model.

Fig. 4 is a control circuit schematic diagram of the present utility model.

Among the figure: 1; pin key 2; C shape arm rotating shaft 3; driven gear 4; driving gear 5; switch collision block 6; limit switch 7; position-arresting disk 8; drive motors 9; reduction box 10; back of the body cap 11; frame 12; C shape arm Q1; switch F1; fuse protection device T1; transformer B1; rectifier bridge M1; drive motors D1-D3; light-emitting diode R1-R3; resistance KM1; KM2; KA1; KA2; relay SQ1; SQ2; SQ0; limit switch SB1; SB2; SB10; SB20; button.

Embodiment

The utility model is described in further detail below in conjunction with the embodiment accompanying drawing.

As shown in Figure 1, 2, C shape arm electric rotary machine structure is installed between the frame 11 and C shape arm 12 of X line machine.Drive motors 8 is fixed on the frame 11 of X line machine, the output shaft of drive motors 8 connects the power shaft of reduction box 9, the fixedly connected driving gear 4 of the output shaft of reduction box 9, driving gear 4 is meshed with driven gear 3, driven gear 3 is fixed in the C shape arm rotating shaft 3 by pin key 1 and back of the body cap 10, C shape arm rotating shaft 3 is by bolt or welding, fixedly connected C shape arm 12.It is that 118783 drive motors and model are the one power output drive motors that 203123 reduction box is formed that drive motors 8 adopts the model of Switzerland Maxon companies.

Position-arresting disk 7 is arranged on reduction box 9 walls, and limit switch 6 is set on the position-arresting disk 7, and switch collision block 5 is set on the driving gear 4, and switch collision block 5 adapts with limit switch 7.Limit switch 7 connects the input of control circuit, and the output of control circuit connects the main circuit of drive motors.

As shown in Figure 3, limit switch 6 is arranged on the position-arresting disk 7, and quantity is 3, be 0 angle position and ± the miter angle position distribution, realized C shape arm when rotation, 0 degree angle and ± the accurate location of three positions of miter angle.

As shown in Figure 4, in the control circuit, M1 is drive motors 8, and F1 is fuse protection device or other insurances, with a transformer T1 and rectifier bridge B1 drive motors M1 power supply.KM1, KM2, KA1 and KA2 are four relays, relay K M1, and the normally-closed contact of KM2 carries out the coil of interlock relay KM1 and KM2, relay K M1, the normally opened contact difference controlling and driving motor M 1 of KM2 gets electric, carries out the rotating conversion.The normally-closed contact interlocking of relay K A1, KA2, the normally opened contact of relay K A1, KA2 is the coil of latching relay KM1, KM2 respectively, realizes that the coil of relay K M1, KM2 gets.The coil of the normally-closed contact of button SB1, limit switch SQ1 and relay K M1 is connected in series between the power supply, the coil of the normally-closed contact of button SB2, limit switch SQ2 and relay K M2 is connected in series between the power supply, button SB10, SB20 connect with relay K A1, KA2 coil respectively, after the two-way parallel connection again and limit switch SQ0 be connected in series again between the power supply.Limit switch SQ1, the SQ2 of three positions and SQ0 are by four button SB1, SB2 and SB10, SB20, come the electric and dead electricity that gets of control relay KM1, KM2, KA1 and KA2 coil, make the closing of contact of relay K M1, KM2, KA1 and KA2 or open with this, thereby realized the rotating of drive motors, controlled rotatablely moving of C shape arm.The normally opened contact of light-emitting diode D1, resistance R 1 and limit switch SQ0 is connected in series between the power supply, the normally opened contact of light-emitting diode D2, resistance R 2 and limit switch SQ1 is connected in series between the power supply, and the normally opened contact of light-emitting diode D3, resistance R 3 and limit switch SQ2 is connected in series between the power supply.Indicate the position of present C shape arm by three indicator lights, as in situations such as zero-bit or on the left side 45 degree or the right 45 degree.Four button SB1, SB2 and SB10, SB20 represent C shape arm left-hand rotation button, right-hand rotation button, a C shape arm left side (position of making zero) button and the right reset key that reset respectively, are non-locking press button.

It is concrete that operating process is as follows for example:

Suppose that present C shape arm stops in 0 angle position, limit switch SQ0 is a closure state so, and normally-closed contact is opened, the normally opened contact closure, and the indicator light light-emitting diode D1 of corresponding 0 angle position is bright, and limit switch SQ1 and SQ2 are just in time opposite.The SB1 that presses ﹠ hold, relay K M1 coil gets electric, and normally-closed contact is opened, the normally opened contact closure, drive motors M1 gets electric rotation, drives C shape arm toward a direction rotation (suppose clockwise).After C shape arm leaves 0 angle position, limit switch SQ0 normally-closed contact closure, normally opened contact is opened, and rotates to the miter angle position up to C shape arm, meets limit switch SQ1.At this moment, limit switch SQ1 normally-closed contact is opened, the normally opened contact closure, and the indicator light of the miter angle position of relevant position is bright, relay K M1 coil losing electricity, normally opened contact is opened, drive motors M1 dead electricity.Another direction motion conditions is same as described above.

If in C shape arm motion process, unclamp button SB1, drive motors M1 dead electricity, motion stops, and pinning then again, C shape arm continues to move to equidirectional; The SB2 that presses ﹠ hold, C shape arm be rotation round about then, just can stop up to the limit switch SQ2 that runs into the other end.

If C shape arm is not in 0 angle position, when needing to return 0 angle position, can only push button SB10 or SB20 realize.The SB10 that presses ﹠ hold, because not in 0 angle position, limit switch SQ0 normally-closed contact closure, normally opened contact is opened, so it is electric that relay K A1 coil gets, the normally opened contact closure gets relay K M2, the normally opened contact closure of relay K M2, drive motors M1 gets electric, and C shape arm rotates to respective direction.Up to the limit switch SQ0 that runs into 0 angle position, normally-closed contact is opened, relay K A1 dead electricity, and relay K M2 dead electricity, the normally opened contact of relay K M2 is opened, the stall of drive motors M1 dead electricity, C shape arm accurately stops at 0 angle position, and corresponding indicator light is bright.

So just realized accurately locating the stop position of C shape arm by three limit switches, 0 angle position and about 45 angle positions.The therapy plot software of after-loading therapy system only need be gathered the image of 0 angle position or 45 angle positions.By at this resulting patient's image in three positions, obtain accurate after-loading therapy plan.

Claims

1. C shape arm electric rotary machine structure, the rotating shaft of C shape arm is arranged, it is characterized in that installing drive motors and reduction box, the output shaft of drive motors connects the power shaft of reduction box, driving gear is installed on the output shaft of reduction box, driven gear in the rotating shaft of C shape arm is meshed with driving gear, driving gear one side is provided with position-arresting disk, position-arresting disk is provided with limit switch, driving gear is provided with the switch collision block that adapts with limit switch, limit switch connects the input of control circuit, and the output of control circuit connects the main circuit of drive motors.

2. C shape arm electric rotary machine structure according to claim 1 is characterized in that limit switch has three, be 0 angle position and ± the miter angle position distribution.

3. C shape arm electric rotary machine structure according to claim 1 is characterized in that position-arresting disk is fixed on the reduction box.