CN205254876U - Medical electronic moment of torsion bottle opener - Google Patents
Medical electronic moment of torsion bottle opener Download PDFInfo
- Publication number
- CN205254876U CN205254876U CN201521053772.8U CN201521053772U CN205254876U CN 205254876 U CN205254876 U CN 205254876U CN 201521053772 U CN201521053772 U CN 201521053772U CN 205254876 U CN205254876 U CN 205254876U
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- barrel
- shaped support
- steel ball
- spring
- decelerator
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Abstract
The utility model discloses a medical electronic moment of torsion bottle opener, barrel -shaped support in the shell, driving motor and reduction gear, gear assembly casing can axial rotation in barrel -shaped support, still include a bowling pin clutching mechanism, this mechanism is mainly by the spring, the spring sleeve, press the cover, surely, turn round the spiral cover nut, steel ball and roller are constituteed, the spring sleeve is fixed at barrel -shaped support, the spring is located presses the cover and turns round surely between the spiral cover nut, surely, it revolves the front end of dress at the spring sleeve to turn round the spiral cover nut, the roller is located the limiting groove of gear assembly casing terminal surface, the steel ball is arranged in the round hole on the barrel -shaped support barrel head, press the flange of cover to press on this steel ball. The output torque of reduction gear can prescribe a limit to in this mechanism, confirms the operation torque value of bottle opener, and its mechanical separation and reunion function can realize the bottle opener and under the circumstances that the motor does not cut off the power supply, work in setting for the torque value, stop when reaching the settlement moment of torsion. The utility model discloses the precision of screwing up to the medical little screw of adaptation is superior to 3%, and the operation torque value is still adjustable.
Description
Technical field
The utility model belongs to tightening tool, relates to a kind of bottle opener, particularly a kind of stubborn for medical ScrewTight electric torque bottle opener.
Background technology
Along with the development of modern medical service, the required precision that people tighten medical Screw is more and more high, at presentReach 5% required precision. And it is few to be especially applicable to the bottle opener that medical Screw tightens in prior art, fewSeveral external diameters that have are less than the Medical electric bottle opener of 20mm and are not also with moment of torsion control, and whether screw is tightened entirely by doctorRaw feel. Because medical Screw material is titanium alloy mostly, material is softer, if moment of torsion is excessive, inevitableCan, by stubborn bad to " one " word groove of screw or " ten " word groove, cause screw to be difficult to the serious consequence of dismounting. MakeVery easily produce this consequence with existing Medical electric bottle opener.
Summary of the invention
The purpose of this utility model is to overcome existing Medical electric bottle opener and does not have the defect of moment of torsion control, carriesGo out the Medical electric torque screwdriver that a kind of output torque can be set, stall can be controlled automatically.
The technical scheme that realizes above-mentioned purpose is: a kind of Medical electric torque screwdriver, comprise double do handle outsideShell, be fixed on barrel-shaped support on outer casing inner wall, be arranged on drive motors and decelerator on barrel-shaped support,And coupling lever, with shell drive end bearing bracket and the driver bit of coupling lever via hole, the output shaft of decelerator passesThe bucket end of barrel-shaped support, connects with coupling lever rear end, coupling lever front end grafting driver bit, and decelerator is three gradesPlanet gear transmission formula, the bucket wall matched in clearance of the shell of decelerator and barrel-shaped support also can axially be revolved in stavingTurn, it is characterized in that, also comprise a goalpost clutch, described goalpost clutch mainly by spring,Spring spool, gland, fixed twisted box nut, steel ball and roller composition, described spring spool front end has outer spiral shellLine, there is moment of torsion graduation mark in stage casing, and the rear end of spring spool is fixed on the bucket end bead of barrel-shaped support, described inGland is hollow structure, and one end is with flange, has a coupling lever on the end face of described fixed twisted box nutVia hole, spring and gland are arranged in spring spool and are sleeved on coupling lever, and spring is positioned at gland and fixed twistedBetween box nut, fixed twisted box nut spinning is on spring spool, at contiguous its output shaft of speed reducer housingOn end face and near position, edge, be provided with a radial roller stopper slot, described roller is positioned at this groove, partBe exposed at outside groove, the bucket end of described barrel-shaped support, is provided with a circular hole corresponding with described roller stopper slot position,Described steel ball is arranged in this circular hole, and the flange of gland is pressed on this steel ball.
Further, described coupling lever, has a circle to lack shape boss, hole at the bottom of the hole of its front end grafting driver bitA screens steel ball is installed on root inwall, and the afterbody of described driver bit has a breach, this breach and instituteState circle and lack shape boss adaptation, the root of driver bit have one with the ring shaped slot of described screens steel ball contraposition.
Further, described drive motors is a kind of DC brushless motor, rotating speed 15000r/min.
Further, described drive motors is circumscribed with the controller of power on/off and commutation function.
Further, on the via hole of described shell drive end bearing bracket, there is " O " RunddichtringO.
Technological core of the present utility model is on decelerator, to be equipped with a goalpost clutch. Goalpost clutchMoment of torsion scale on spring, spring spool in mechanism and fixed twisted box nut are through detection and supporting.Goalpost clutch passes through fixed twisted box nut Compress Spring, and according to the moment of torsion scale of setting on spring spoolDetermine the precession degree of depth of twisted box nut, i.e. the pressure of setting spring to steel ball, and then restriction deceleratorOutput torque, i.e. the operation torque value of definite bottle opener. After the operation torque value of bottle opener is set, steel ball is by tightlyBe squeezed on the shell end face of decelerator. In the time of bottle opener energising work, if the output torque of decelerator is no more thanLimit value, the shell of decelerator is stopped by steel ball, the output shaft rotation of decelerator is implemented tightening screw;If the output torque of decelerator has exceeded limit value, the rotation dynamics torsion of speed reducer housing can make steel ball loseGo its resistance to transfer to use, in the time that speed reducer housing rotates, the stall of the output shaft of decelerator. This practicality is newIn type, this mechanical clutch function of goalpost clutch, can realize the feelings of bottle opener in not power-off of drive motorsUnder condition, in setting torque value, work, reach while setting moment of torsion and stop.
The utility model, because there being operation torque value to limit, can accurately be controlled screw-down torque, and precision is better than 3%,And operation torque value can regulate by surely twisted box nut, therefore, doctor can be according to medical ScrewSpecification select adaptive bottle opener, or regulate the operation torque value of bottle opener, as long as select suitably or regulate adaptive,Just can accurately tighten medical Screw, more can prevent from damaging " one " word groove or " ten " word groove of Screw.
Brief description of the drawings
Fig. 1 is the unitary construction schematic diagram of an embodiment of the utility model.
Fig. 2 is the internal structure schematic diagram of middle goalpost clutch embodiment illustrated in fig. 1.
Fig. 3 is before bottle opener operation torque value is set and the output torque of decelerator is greater than bottle opener operation torque valueTime, the relative position schematic diagram of steel ball and roller.
Fig. 4 is after bottle opener operation torque value is set and the output torque of decelerator is less than bottle opener operation torque valueTime, the relative position schematic diagram of steel ball and roller.
Fig. 5 is the organigram of middle coupling lever embodiment illustrated in fig. 1.
In figure: 1. driver bit, 2. coupling lever, 3. shell drive end bearing bracket, 4. goalpost clutch, 5. slows downDevice, 6. drive motors, 7. socket, 8. shell, 9. barrel-shaped support, 201. boss, 202. screens steel balls,301. sealing rings, 401. fixed twisted box nuts, 402. springs, 403. spring spools, 404. glands, 405.Steel ball, 406. rollers.
Detailed description of the invention
In order to make those skilled in the art understand better the technical solution of the utility model, below in conjunction with attachedThe utility model is described in further detail for figure and specific embodiment.
As shown in Figure 1, the utility model comprises the double shell 8 that makees handle, is fixed on the bucket on shell 8 inwallsShape support 9, be arranged on drive motors 6 and decelerator 5 on barrel-shaped support 9, and coupling lever 2, withThe shell drive end bearing bracket 3 of coupling lever via hole and driver bit 1, the output shaft of decelerator 5 is through barrel-shaped support 9The bucket end, connects with the rear end of coupling lever 2, coupling lever 2 front end grafting driver bits 1, and decelerator 5 is three grades of rowPlanet gearing formula, the bucket wall matched in clearance of the shell of decelerator 5 and barrel-shaped support 9 also can be in staving axiallyRotation. Drive motors 6 is fixedly mounted on barrel-shaped support 9, and socket 7 is arranged on the tail end of shell 8, insertsSeat 7 one end are electrically connected with drive motors 6, and the other end is connected with the controller with power on/off and commutation function.The utility model also comprises a goalpost clutch 4.
As shown in Figure 1, 2, goalpost clutch 4 mainly by spring 402, spring spool 403, gland 404,Fixed twisted box nut 401, steel ball 405 and roller 406 form. Spring spool 403 front ends have external screw thread, inSection has moment of torsion graduation mark, the rear end of spring spool 403 to be fixed on the bucket end bead of barrel-shaped support 9; Gland404 is hollow structure, and one end is with flange; On the end face of fixed twisted box nut 401, there is a coupling lever 2Via hole, spring 402 and gland 404 are arranged in spring spool 403 and are sleeved on coupling lever 2 spring 402One end is enclosed within on gland 404, and the other end is compressed by fixed twisted box nut 401, and fixed twisted box nut 401 revolvesBe contained on spring spool 403; On the end face of contiguous its output shaft of the shell of decelerator 5 and near position, edgeInstalled a radial roller stopper slot, roller 406 is positioned at this groove, and some is exposed at groove roller 406Outward; The bucket end of barrel-shaped support 9, is provided with a circular hole corresponding with roller stopper slot position, 405 of steel ballsIn this circular hole, the flange of gland 404 is pressed on steel ball 405.
Moment of torsion scale on spring 402, spring spool 403 in goalpost clutch 4 and fixed twisted box nutThe 401st, after testing and supporting. By the precession degree of depth of surely twisted box nut 401, can set deceleratorOutput torque, i.e. the operation torque value of definite bottle opener.
While setting moment of torsion, the fixed twisted box nut 401 of dextrorotation, Compress Spring 402, and then extruding gland 404,Gland 404 again so that extruding steel ball 405, steel ball 405 is tightly squeezed on the shell end face of decelerator 5.When a certain with on the spring spool 403 of moment of torsion graduation mark of fixed twisted box nut 401 right sides of precessionWhen graduation mark overlaps, the operation torque value that completes this electric torque bottle opener is set, and this operation torque value is for twistingThe standard torque of tight medical Screw, the standard torque of medical Screw can obtain from relevant criterion.
Operation principle of the present utility model: in the time that drive motors 6 is switched on, decelerator 5 is driven, owing to subtractingSpeed device 5 engages connection with drive motors 6 by gear, and the shell of decelerator 5 can be at barrel-shaped support 9 simultaneouslyStaving in axially rotate freely, so if decelerator 5 will have output, must be by the shell resistance of decelerator 5Turn, not so the power of drive motors 6 only can make the shell rotation of decelerator 5, and can not drive decelerator 5Output shaft rotation, (the similar torque multiplier of this principle, if want multiplier normally to work, must have counter-force armMultiplier shell resistance with internal tooth is turned). Because steel ball 405 is tightly pressed in decelerator 5 by spring 402On shell end face, steel ball 405 stops the shell rotation (as shown in Figure 5) with the decelerator 5 of roller 406,Play resistance and transferred to use, now, the output shaft rotation of decelerator 5, and then drive coupling lever 2 to rotate,Shaft coupling 2 drives driver bit 1 to rotate, and implements tightening screw. The moment of torsion transmitting when decelerator 5 is largeIn set torque value time, when namely decelerator 5 transmitting torques are greater than steel ball 405 and hinder torque, steel ball405 are pushed (as shown in Figure 4) by roller 406 in circular hole, because the turning moment of decelerator 5 shells is largeIn setting moment of torsion, the torsion of decelerator 5 shells can make steel ball 405 lose its resistance is transferred to use, so subtractAlthough the shell of speed device 5 is hindered, it still can rotate with roller 406, and decelerator 5 nowOutput shaft stall. Here it is, and goalpost clutch 4 can be realized the principle of mechanical clutch function, drivesMotor 6 not power-off, in the time reaching setting moment of torsion, decelerator 5 stops normal output, and shaft coupling 2 also stopsRotation, driver bit 1 stall.
In the utility model, the maximum outside diameter of shell 8 is less than 20mm; Drive motors 6 is a kind of brush DCsMotor. In the present embodiment, the outside dimension of drive motors 6 is 18mm, rotating speed 15000r/min; Decelerator5 speed reducing ratio is 125: 1.
As shown in Figure 2, in the present embodiment, at the bottom of the hole of coupling lever 2 front end grafting driver bits, there is a circle to lackShape boss 201, is provided with a screens steel ball 202 on the root inwall of hole, the afterbody of driver bit 1 has one to lackMouthful, this breach and boss 201 adaptations, the root of driver bit 1 has one with 202 contrapositions of screens steel ballRing shaped slot. On the via hole of shell drive end bearing bracket, there is " O " RunddichtringO 301, water proof and dust proof.
The operation torque value of bottle opener can regulate by surely twisted box nut 401. When adjusting, desheathing front endLid 3, dextrorotation or left-handed fixed twisted box nut 401, make the selected scale on its right side and spring spool 403Line overlaps, and then loads onto shell drive end bearing bracket 3.
Claims (5)
1. a Medical electric torque screwdriver, comprise the double shell that makees handle, be fixed on the barrel-shaped support on outer casing inner wall, be arranged on drive motors and decelerator on barrel-shaped support, and coupling lever, with shell drive end bearing bracket and the driver bit of coupling lever via hole, the output shaft of decelerator connected with coupling lever rear end through the bucket end of barrel-shaped support, coupling lever front end grafting driver bit, decelerator is third-level planetary wheel driven type, the bucket wall matched in clearance of the shell of decelerator and barrel-shaped support and can be in staving axial-rotation, it is characterized in that: also comprise a goalpost clutch,
Described goalpost clutch is mainly by spring, spring spool, gland, fixed twisted box nut, steel ball and roller composition, described spring spool front end has external screw thread, there is moment of torsion graduation mark in stage casing, the rear end of spring spool is fixed on the bucket end bead of barrel-shaped support, described gland is hollow structure, one end is with flange, on the end face of described fixed twisted box nut, there is the via hole of a coupling lever, spring and gland are arranged in spring spool and are sleeved on coupling lever, spring is between gland and fixed twisted box nut, fixed twisted box nut spinning is on spring spool, on the end face of contiguous its output shaft of speed reducer housing and near position, edge, be provided with a radial roller stopper slot, described roller is positioned at this groove, part is exposed at outside groove, the bucket end of described barrel-shaped support, is provided with a circular hole corresponding with described roller stopper slot position, described steel ball is arranged in this circular hole, the flange of gland is pressed on this steel ball.
2. according to Medical electric torque screwdriver claimed in claim 1, it is characterized in that: described coupling lever, at the bottom of the hole of its front end grafting driver bit, there is a circle to lack shape boss, a screens steel ball is installed on the root inwall of hole, the afterbody of described driver bit has a breach, this breach and described circle lack shape boss adaptation, the root of driver bit have one with the ring shaped slot of described screens steel ball contraposition.
3. according to Medical electric torque screwdriver claimed in claim 1, it is characterized in that: described drive motors is a kind of DC brushless motor, rotating speed 15000r/min.
4. according to the Medical electric torque screwdriver described in claim 1 or 3, it is characterized in that: described drive motors is circumscribed with the controller of power on/off and commutation function.
5. according to Medical electric torque screwdriver claimed in claim 1, it is characterized in that: on the via hole of described shell drive end bearing bracket, have " O " RunddichtringO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521053772.8U CN205254876U (en) | 2015-12-11 | 2015-12-11 | Medical electronic moment of torsion bottle opener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521053772.8U CN205254876U (en) | 2015-12-11 | 2015-12-11 | Medical electronic moment of torsion bottle opener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205254876U true CN205254876U (en) | 2016-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521053772.8U Active CN205254876U (en) | 2015-12-11 | 2015-12-11 | Medical electronic moment of torsion bottle opener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205254876U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415266A (en) * | 2015-12-11 | 2016-03-23 | 陕西东方航空仪表有限责任公司 | Medical electric torque screwdriver |
| CN109659655A (en) * | 2018-12-29 | 2019-04-19 | 华为机器有限公司 | Tune knife head device, cavity body filter tuner and method |
-
2015
- 2015-12-11 CN CN201521053772.8U patent/CN205254876U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105415266A (en) * | 2015-12-11 | 2016-03-23 | 陕西东方航空仪表有限责任公司 | Medical electric torque screwdriver |
| CN109659655A (en) * | 2018-12-29 | 2019-04-19 | 华为机器有限公司 | Tune knife head device, cavity body filter tuner and method |
| CN109659655B (en) * | 2018-12-29 | 2021-07-20 | 华为机器有限公司 | Tuning tool bit device, cavity filter tuning equipment and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |