WO2015143945A1 - Wire transmission mechanism for mammography machine c arm rotation - Google Patents

Wire transmission mechanism for mammography machine c arm rotation Download PDF

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Publication number
WO2015143945A1
WO2015143945A1 PCT/CN2015/071826 CN2015071826W WO2015143945A1 WO 2015143945 A1 WO2015143945 A1 WO 2015143945A1 CN 2015071826 W CN2015071826 W CN 2015071826W WO 2015143945 A1 WO2015143945 A1 WO 2015143945A1
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WO
WIPO (PCT)
Prior art keywords
wire
driven wheel
wire drive
wall
locking block
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PCT/CN2015/071826
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French (fr)
Chinese (zh)
Inventor
丁军
谢艳霞
牛雪娟
Original Assignee
邦盛医疗装备(天津)股份有限公司
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Application filed by 邦盛医疗装备(天津)股份有限公司 filed Critical 邦盛医疗装备(天津)股份有限公司
Priority to DE112015000088.7T priority Critical patent/DE112015000088B4/en
Publication of WO2015143945A1 publication Critical patent/WO2015143945A1/en

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/50Clinical applications
    • A61B6/502Clinical applications involving diagnosis of breast, i.e. mammography
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/44Constructional features of apparatus for radiation diagnosis
    • A61B6/4429Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
    • A61B6/4435Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure
    • A61B6/4441Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit and the detector unit being coupled by a rigid structure the rigid structure being a C-arm or U-arm
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/44Constructional features of apparatus for radiation diagnosis
    • A61B6/4476Constructional features of apparatus for radiation diagnosis related to motor-assisted motion of the source unit
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members

Definitions

  • the invention relates to a transmission device for a medical device, in particular to a wire transmission mechanism for a C-arm rotation of a mammary machine.
  • the medical device for X-ray diagnosis of breast cancer mainly uses a high-frequency mammography machine, which is mainly composed of a C-arm and a column, and the two parts are connected together through a rotating shaft.
  • a high-frequency mammography machine which is mainly composed of a C-arm and a column, and the two parts are connected together through a rotating shaft.
  • most of the high-frequency mammography X-ray machines have two kinds of C-arm rotating mechanisms.
  • the first one drives the C-arm and X-ray source components through the motor, the worm and the synchronous pulley, and the second through the worm geared motor and
  • the timing belt drive drives the C-arm and X-ray source assembly.
  • the first advantage is that the structure is compact, the arm width is small, simple and beautiful, but the worm and worm gear transmission has high requirements on processing and assembly adjustment, and the assembly skill technical level is high, so the total manufacturing cost is higher than that of purchasing professional manufacturers.
  • the standard size reducer produced is also costly.
  • the second type uses a standard worm reducer, which requires low processing and assembly, low requirements on the technical level of the assembler, and therefore low cost.
  • the width dimension of the reducer is larger than the width of the individual worm gear, the total lateral dimension of the transmission mechanism Large, resulting in a large arm width or one side of the arm is bulged out of a large piece due to the installation of the reducer, the arm is not coordinated with the whole machine, not simple, not beautiful.
  • the steel wire cannot always operate under the pre-tightening state, and the adjustment precision of the steel wire is insufficient.
  • the safety of the wire fixing is often insufficient, which causes safety hazards in the system.
  • the phenomenon of slipping may occur during the braking process of the C-arm, posing a threat to personal safety.
  • the technical problem to be solved by the present invention is to provide a wire drive mechanism for a C-arm rotation of a mammary gland with simple structure, low cost, high safety factor and stable operation.
  • the invention relates to a wire drive mechanism for a C-arm rotation of a mammary machine, comprising: a motor, a reducer, a wire drive drive wheel, a wire drive driven wheel, a wire drive driven wheel rotary shaft, an electromagnetic brake and a C-arm rotary shaft, and an output of the motor
  • the shaft is connected with the power input shaft of the reducer, and the power output shaft of the reducer is fixedly connected with the drive shaft of the wire drive, and a wire drive driven wheel is placed under the wire drive drive wheel, on the outer wall of the wire drive drive wheel and the wire drive driven wheel Threaded, wire drive driven wheel a first circular through hole is formed between the front and rear ends, a wire locking block is arranged in the first circular through hole, and a threading hole is opened in a middle position of the front part of the wire locking block, and the wire locking block is provided a plurality of positioning holes are defined in the outer wall, and a second circular through hole is formed in the outer wall of the driven wheel of the wire drive,
  • the second circular through hole is inserted into the positioning hole of the outer wall of the wire locking block, and the starting end of the steel wire is fixed on the outer wall of the driven wheel of the wire drive, and the steel wire is threaded between the thread drive drive wheel and the thread on the outer wall of the wire drive driven wheel.
  • Winding the wire end end is fixed on the outer wall of the wire drive driven wheel, passes through the threading hole on the wire locking block, and is knotted and fixed at the end end of the wire.
  • the wire drive driven wheel and the wire drive drive the rotary shaft end. Fixed connection, the other end of the wire drive driven rotary shaft is connected with the armature disc of the electromagnetic brake, and the suction cup of the electromagnetic brake is fixedly mounted on the C arm rotary shaft.
  • the invention relates to a wire drive mechanism for a C-arm rotation of a mammography machine, wherein the wire drive mechanism of the C-arm rotation of the mammography machine further comprises an armature with a square seat bearing, a square seat bearing mounted on the wire drive driven rotary shaft and the electromagnetic brake. Between the discs.
  • the invention relates to a wire drive mechanism for a C-arm rotation of a mammography machine, wherein a wire press plate and a cylindrical wire fixing pin are further disposed on an outer wall of the wire drive driven wheel, and a third through hole is opened on a side wall of the wire fixing pin.
  • the side wall of the lower part of the wire fixing pin is provided with a thread, and the wire fixing pin is screwed through the thread on the outer wall to the threaded hole opened in the outer wall of the driven wheel of the wire drive, and the starting end of the wire is knotted and pressed on the wire plate and the wire drive driven wheel.
  • the steel wire is locked and fixed by bolts. After the end end of the steel wire passes through the third through hole on the side wall of the wire fixing pin, the wire fixing pin presses the steel wire to the bottom of the threaded hole.
  • the invention relates to a wire drive mechanism for a C-arm rotation of a mammography machine, wherein a cylindrical protrusion is arranged at an intermediate position of a front portion of the wire locking block, and a threaded hole is formed in a top end and a side wall of the cylindrical protrusion, respectively
  • the wire holes communicate with each other to form an L-shaped threading hole, and the terminating end of the wire enters from the threading hole in the side wall of the cylindrical protrusion, and passes through the threading hole at the top end of the connecting rod.
  • the invention relates to a wire drive mechanism for a C-arm rotation of a mammography machine, wherein the motor is a stepping motor.
  • the invention relates to a wire drive mechanism for a C-arm rotation of a mammography machine, wherein the reducer is a reduction gear box.
  • the invention relates to a wire drive mechanism for a C-arm rotation of a mammography machine, wherein the wire drive drive wheel and the wire drive driven wheel are provided with a right-hand thread on the outer wall of the driven wheel, the pitch is 8 mm, the thread groove depth is 3.6 mm, and the thread length It is 32mm.
  • the invention relates to a wire drive mechanism for a C-arm rotation of a mammography machine, wherein the wire locking block is cylindrical, and twelve positioning holes are evenly opened in the circumferential direction on the outer wall of the wire locking block.
  • the invention relates to a wire drive mechanism for a C-arm rotation of a mammography machine, wherein the wire drive driven wheel and the wire drive driven rotary shaft are fixedly connected by a double key.
  • the wire drive mechanism of the C-arm rotation of the mammography machine is different from the prior art in that the invention has the advantages of low cost, simple structure, high safety factor, stable operation and convenient wire length adjustment.
  • the starting end and the ending end of the steel wire are locked and fixed on the wire drive driven wheel, and the wire locking block positioning pin 15 is inserted into the different positioning holes 14 on the outer wall of the wire locking block 12 by manually rotating the wire locking block 12.
  • To fine-tune the length of the wire not only simple structure, easy to install and maintain Repair, and greatly improve the adjustment accuracy.
  • the driven wheel causes the C-arm to lose control and is in danger.
  • the electromagnetic brake is used to transmit the power to the C-arm, which not only can brake the rotation of the C-arm in vertical and horizontal critical states, but also effectively prevent the occurrence of slipping, make the rotation more stable, and also ensure that when C When the arm is overloaded or needs an emergency stop, as long as the power supply of the electromagnetic brake is disconnected, the electromagnetic brake and the C-arm rotary shaft will be disconnected from power, thereby maximizing personal safety.
  • Figure 1 is a front elevational view of a wire drive mechanism for a C-arm rotation of a mammary gland according to the present invention
  • Figure 2 is a front elevational view of the tension adjusting mechanism of the wire drive mechanism of the C-arm of the mammography machine of the present invention
  • Figure 3 is a front elevational view of the wire drive mechanism of the C-arm of the mammography machine mounted on the C-arm of the present invention.
  • the invention discloses a wire drive mechanism for a C-arm rotation of a mammary machine, comprising a stepping motor 1, a reduction gear box 2, a wire drive driving wheel 3, a wire transmission driven wheel 4, and a wire transmission driven wheel rotary shaft. 5.
  • a wire drive mechanism for a C-arm rotation of a mammary machine comprising a stepping motor 1, a reduction gear box 2, a wire drive driving wheel 3, a wire transmission driven wheel 4, and a wire transmission driven wheel rotary shaft. 5.
  • a wire drive mechanism for a C-arm rotation of a mammary machine comprising a stepping motor 1, a reduction gear box 2, a wire drive driving wheel 3, a wire transmission driven wheel 4, and a wire transmission driven wheel rotary shaft. 5.
  • electromagnetic brake 7 and C arm rotary shaft 8 With square seat bearing 6, electromagnetic brake 7 and C arm rotary shaft 8.
  • the output shaft of the stepping motor 1 is connected to a power input shaft extending from a side wall of the rectangular reduction gear box 2, and the power output shaft and the cylindrical wire drive driving wheel 3 projecting on the adjacent side wall of the reduction gear box 2
  • the fixed connection is provided with a first right-handed thread 9 on the outer wall of the front part of the wire drive driving wheel 3, the pitch is 8 mm, the thread groove depth is 3.6 mm, and the thread length is 32 mm.
  • a tensioning force adjusting mechanism is disposed under the wire drive driving wheel 3. As shown in FIG.
  • the tensioning force adjusting mechanism is provided with a cylindrical wire driving driven wheel 4 in the same direction as the wire driving driving wheel 3, in the wire
  • a second right-handed thread 10 is opened at an intermediate position of the outer wall of the drive driven wheel 4, the pitch is 8 mm, the thread groove depth is 3.6 mm, and the thread length is 32 mm.
  • a first circular through hole 11 is defined between the front end and the rear end of the wire drive driven wheel 4, and a cylindrical wire locking block 12 is disposed in the first circular through hole 11 at the front of the wire locking block 12.
  • the middle position is provided with a cylindrical protrusion, and the top end of the cylindrical protrusion and the side wall are respectively provided with a threading hole, and the two threading holes communicate with each other to form an L-shaped threading hole 13.
  • a second circular through hole is opened in the outer wall of the wire drive driven wheel 4, and a wire lock is arranged in the second circular through hole.
  • the wire block positioning pin 15 is inserted into the positioning hole 14 of the outer wall of the wire lock block 12 through the second circular through hole.
  • a wire pressing plate 16 and a cylindrical wire fixing pin 17 are further disposed on the outer wall of the wire drive driven wheel 4, and a third through hole 19 is defined in an upper portion of the side wall of the wire fixing pin 17, and a sidewall of the lower portion of the wire fixing pin 17 is disposed on the side wall Thread.
  • the starting end of the steel wire is knotted and pressed between the steel wire pressing plate 16 and the outer wall of the wire driving driven wheel 4, and the steel wire is locked and fixed by bolts.
  • the steel wire is wound between the second right-hand thread 10 and the first right-hand thread 9, and the wire fixing pin 17 is screwed through the thread on the outer wall to the threaded hole opened in the outer wall of the wire drive driven wheel 4, and the end end of the wire passes through After the third through hole 19 on the side wall of the wire fixing pin 17, the wire fixing pin 17 presses the wire into the threaded hole bottom.
  • the terminating end of the wire enters from the threaded opening in the side wall of the cylindrical projection, passes through the threading hole at the top end of the cylindrical projection, and is knotted and fixed at the terminating end of the wire.
  • the double-link connection between the wire drive driven wheel 4 and the wire drive driven rotary shaft 5 improves the transmission torque between the wire drive driven wheel 4 and the wire drive driven rotary shaft 5.
  • the other end of the wire drive driven rotary shaft 5 is connected to the armature disk of the electromagnetic brake 7, and a square seat bearing 6 is mounted between the wire drive driven rotary shaft 5 and the armature disk of the electromagnetic brake 7, and the suction pad of the electromagnetic brake 7 is fixed.
  • the re-c arm rotary shaft 8 is mounted, and the suction cup of the electromagnetic brake 7 and the armature disc are connected to each other by an adjusting sleeve.
  • the working process of the present invention is as follows: as shown in FIG. 3, the C-arm rotary shaft 8 is fixedly mounted on the C-arm 18, and the reduction gear box 2 and the electromagnetic brake 7 are mounted in the wire transmission mechanism housing 20, and the wire transmission mechanism housing 20 Mounted at the front end of the C-arm 18, the C-arm rotary shaft 8 is mounted at a position such that the armature disc of the electromagnetic brake 7 and the suction cup are attracted to each other.
  • the stepping motor 1 is turned on, the power of the electromagnetic brake 7 is turned on, electromagnetic force is generated between the armature disc of the electromagnetic brake 7 and the suction cup, and the armature disc can drive the suction cup to rotate.
  • the stepping motor 1 transmits the decelerated power to the wire drive driving wheel 3 through the reduction gear box 2, and the wire drive driving wheel 3 rotates under the action of the power, and is wound by the first right-hand thread 9 and the second right-hand thread.
  • the wire between the 10 transmits the power to the wire drive driven wheel 4, and drives the wire drive driven wheel 4 to rotate.
  • the wire drive driven wheel 4 drives the armature disk of the electromagnetic brake 7 through the wire drive driven wheel rotary shaft 5, and the armature of the electromagnetic brake 7 The disk rotates by the chuck of the electromagnetic brake 7, thereby driving the C-arm rotary shaft 8 to rotate, and finally the C-arm 18 is rotated by the C-arm rotary shaft 8.
  • the power supply of the electromagnetic brake 7 is turned off, the armature disc of the electromagnetic brake 7 is de-energized, there is no electromagnetic force between the armature disc of the electromagnetic brake 7 and the suction cup, and the suction cup of the electromagnetic brake 7 is decelerated by itself.
  • the device stops rotating, so that the rotation of the C-arm rotary shaft 8 is stopped, and the C-arm 18 also stops rotating.
  • the length of the wire can be finely adjusted.
  • the wire locking block positioning pin 15 is first removed, and the wire fixing pin 17 is screwed to move the wire pressed at the bottom of the threaded hole.
  • the wire locking block 12 is manually rotated according to the required length of the wire, and the wire locking block positioning pin 15 is inserted into the different positioning holes 14 on the outer wall of the wire locking block 12.
  • the wire at the bottom of the threaded hole is according to the wire locking block positioning pin 15
  • the difference in insertion of the positioning holes 14 is performed to finely adjust the length of the wire.
  • the invention discloses a wire drive mechanism for a C-arm rotation of a mammary gland, wherein the start end and the end end of the steel wire are both locked and fixed on the wire drive driven wheel 4, and the wire locking block is changed by manually rotating the wire locking block 12.
  • the pin 15 is inserted into different positioning holes 14 on the outer wall of the wire locking block 12 to finely adjust the length of the wire, which is not only simple in structure, convenient for installation and maintenance, but also greatly improves the adjustment precision.
  • Three-stage fixing is adopted at the end end of the steel wire, and the wire locking block positioning pin 15, the wire fixing pin 17 and the wire locking block 12 respectively lock and fix the steel wire, and ensure that after the fixing measures fail, the wire end is not caused.
  • the electromagnetic brake 7 is used to transmit the power to the C-shaped arm 18, which not only can brake the rotation of the C-arm 18 in the vertical and horizontal critical states, thereby effectively preventing the occurrence of the slip phenomenon, making the rotation more stable, and also Ensure that when the C-arm 18 is overloaded or requires an emergency stop, only To disconnect the power of the electromagnetic brake 7, the C-arm rotary shaft 8 stops rotating, thereby maximally ensuring personal safety.
  • the utility model has the advantages of low cost, simple structure, high safety factor, stable operation and convenient wire length adjustment, and has obvious advantages compared with the prior art.
  • the wire drive mechanism of the C-arm of the mammography machine can effectively improve the safety of the C-arm of the mammography machine, and the components used therein can be mass-produced and assembled through industrialization, thus having great market prospects and very Strong industrial applicability.

Abstract

A wire transmission mechanism for mammography machine C arm rotation. An object of the invention is to provide a wire transmission mechanism for C arm rotation, the wire transmission mechanism being simple in structure, low in cost and simple in operation. The wire transmission mechanism comprises a wire transmission drive wheel (3), a wire transmission driven wheel (4) and a tension adjusting mechanism. The power of the wire transmission mechanism is provided by a stepping motor (1), the power is transmitted to the wire transmission drive wheel (3) through a reduction gear box (2), the wire transmission driven wheel (4) is driven to rotate through a steel wire, and then a C arm is driven to rotate. The tension adjusting mechanism comprises a steel wire locking block positioning pin (15), a steel wire locking block (12), a steel wire fixing pin (17) and a steel wire pressing plate (16). The steel wire locking lock positioning pin (15) limits the steel wire locking block (12) and the wire transmission driven wheel (4), so that the steel wire locking block (12) and the wire transmission driven wheel (4) are relatively static. The steel wire fixing pin (17) is locked and fixed on the wire transmission driven wheel (4). The steel wire passes through the steel wire fixing pin (17) for primary fixation. The steel wire passes through a through hole at the end face of the steel wire locking block (12) and is knotted and locked for secondary fixation. The steel wire pressing plate (16) is used for fixing the other end of the steel wire to the wire transmission driven wheel (4).

Description

一种乳腺机C臂回转的丝传动机构Silk drive mechanism for breast C-arm rotation 技术领域Technical field
本发明涉及一种医疗器械的传动装置,特别是涉及一种乳腺机C臂回转的丝传动机构。The invention relates to a transmission device for a medical device, in particular to a wire transmission mechanism for a C-arm rotation of a mammary machine.
背景技术Background technique
目前乳腺癌的发病率已由女性恶性肿瘤中的第二位跃居到首位,且发病年龄趋于年轻化,乳腺癌对人类健康的严重危害引起了世界卫生组织和医疗界人士的高度重视,乳腺癌早期发现、早期诊断和早期治疗是降低死亡率的关键。At present, the incidence of breast cancer has jumped from the second place in female malignant tumors to the first place, and the age of onset has become younger. The serious harm of breast cancer to human health has attracted the attention of the World Health Organization and the medical community. Early detection, early diagnosis and early treatment of breast cancer are key to reducing mortality.
诊断乳腺癌的方法有很多,比如乳腺癌X线诊断、超声显象检查、B超以及CT检查等,目前由于乳腺癌X线诊断方法方便快捷、操作简单而被医院所广泛采用,医院用于乳腺癌X线诊断的医疗器械主要采用高频乳腺X射线机,该产品主要由C形臂和立柱两大部分组成,通过转轴将两部分连接在一起。目前大部分高频乳腺X射线机的C形臂旋转机构大概有两种,第一种通过电机、蜗杆蜗轮和同步带轮传动带动C臂及X射线源组件;第二种通过蜗杆减速电机和同步带轮传动带动C臂及X射线源组件。第一种的优点是结构紧凑,支臂宽度小、简洁、美观,但蜗杆蜗轮传动对加工和装配调整要求高,对装配工技术水平要求高,因此总的制造成本反而比购买专业厂家大批量生产的标准规格减速器成本还大。第二种使用标准蜗杆减速器,对加工和装配要求低,对装配工技术水平要求低,因而成本低,但由于减速器的宽度尺寸比单独的蜗轮宽度尺寸大,因此传动机构总的横向尺寸大,造成支臂宽度尺寸大或者支臂的一侧因装有减速器而鼓出一大块,支臂与整机不协调、不简洁、不美观。总体来说,现阶段的高频乳腺X射线机的C形臂旋转机构中,钢丝不能始终处于预紧力状态下运行,而且对钢丝的调节精度不够。在运行过程中往往对钢丝固定的安全性不够,使系统存在安全隐患,同时在C形臂制动的过程中还可能会出现打滑的现象,对人身安全造成威胁。There are many methods for diagnosing breast cancer, such as X-ray diagnosis of breast cancer, ultrasonography, B-ultrasound and CT examination. At present, the X-ray diagnosis method for breast cancer is widely used in hospitals because of its convenient and quick operation and simple operation. The medical device for X-ray diagnosis of breast cancer mainly uses a high-frequency mammography machine, which is mainly composed of a C-arm and a column, and the two parts are connected together through a rotating shaft. At present, most of the high-frequency mammography X-ray machines have two kinds of C-arm rotating mechanisms. The first one drives the C-arm and X-ray source components through the motor, the worm and the synchronous pulley, and the second through the worm geared motor and The timing belt drive drives the C-arm and X-ray source assembly. The first advantage is that the structure is compact, the arm width is small, simple and beautiful, but the worm and worm gear transmission has high requirements on processing and assembly adjustment, and the assembly skill technical level is high, so the total manufacturing cost is higher than that of purchasing professional manufacturers. The standard size reducer produced is also costly. The second type uses a standard worm reducer, which requires low processing and assembly, low requirements on the technical level of the assembler, and therefore low cost. However, since the width dimension of the reducer is larger than the width of the individual worm gear, the total lateral dimension of the transmission mechanism Large, resulting in a large arm width or one side of the arm is bulged out of a large piece due to the installation of the reducer, the arm is not coordinated with the whole machine, not simple, not beautiful. In general, in the C-arm rotating mechanism of the high-frequency mammography machine at this stage, the steel wire cannot always operate under the pre-tightening state, and the adjustment precision of the steel wire is insufficient. In the course of operation, the safety of the wire fixing is often insufficient, which causes safety hazards in the system. At the same time, the phenomenon of slipping may occur during the braking process of the C-arm, posing a threat to personal safety.
发明内容Summary of the invention
本发明要解决的技术问题是提供一种结构简单、成本低、安全系数高、运行平稳的乳腺机C臂回转的丝传动机构。The technical problem to be solved by the present invention is to provide a wire drive mechanism for a C-arm rotation of a mammary gland with simple structure, low cost, high safety factor and stable operation.
本发明一种乳腺机C臂回转的丝传动机构,其中:包括电机、减速器、丝传动主动轮、丝传动从动轮、丝传动从动轮回转轴、电磁制动器和C臂回转轴,电机的输出轴与减速器的动力输入轴连接,减速器的动力输出轴与丝传动主动轮固定连接,在丝传动主动轮下面放置有丝传动从动轮,在丝传动主动轮与丝传动从动轮的外壁上都开设有螺纹,在丝传动从动轮 的前后两端之间开设有第一圆形通孔,在第一圆形通孔中设置有钢丝锁紧块,在钢丝锁紧块前部的中间位置开设有穿丝孔,钢丝锁紧块的外壁上开设有多个定位孔,在丝传动从动轮外壁上开设有第二圆形通孔,在第二圆形通孔中设置有钢丝锁紧块定位销,钢丝锁紧块定位销穿过第二圆形通孔插入到钢丝锁紧块外壁的定位孔中,钢丝起始端固定在丝传动从动轮外壁上,钢丝在丝传动主动轮与丝传动从动轮的外壁上的螺纹之间进行缠绕,钢丝终止端在丝传动从动轮外壁上固定后,穿过钢丝锁紧块上的穿丝孔,并在钢丝的终止端打结固定,丝传动从动轮与丝传动从动回转轴的一端固定连接,丝传动从动回转轴的另一端与电磁制动器的衔铁盘连接,电磁制动器的吸盘固定安装在C臂回转轴上。The invention relates to a wire drive mechanism for a C-arm rotation of a mammary machine, comprising: a motor, a reducer, a wire drive drive wheel, a wire drive driven wheel, a wire drive driven wheel rotary shaft, an electromagnetic brake and a C-arm rotary shaft, and an output of the motor The shaft is connected with the power input shaft of the reducer, and the power output shaft of the reducer is fixedly connected with the drive shaft of the wire drive, and a wire drive driven wheel is placed under the wire drive drive wheel, on the outer wall of the wire drive drive wheel and the wire drive driven wheel Threaded, wire drive driven wheel a first circular through hole is formed between the front and rear ends, a wire locking block is arranged in the first circular through hole, and a threading hole is opened in a middle position of the front part of the wire locking block, and the wire locking block is provided a plurality of positioning holes are defined in the outer wall, and a second circular through hole is formed in the outer wall of the driven wheel of the wire drive, and a wire locking block positioning pin is arranged in the second circular through hole, and the wire locking block positioning pin is worn. The second circular through hole is inserted into the positioning hole of the outer wall of the wire locking block, and the starting end of the steel wire is fixed on the outer wall of the driven wheel of the wire drive, and the steel wire is threaded between the thread drive drive wheel and the thread on the outer wall of the wire drive driven wheel. Winding, the wire end end is fixed on the outer wall of the wire drive driven wheel, passes through the threading hole on the wire locking block, and is knotted and fixed at the end end of the wire. The wire drive driven wheel and the wire drive drive the rotary shaft end. Fixed connection, the other end of the wire drive driven rotary shaft is connected with the armature disc of the electromagnetic brake, and the suction cup of the electromagnetic brake is fixedly mounted on the C arm rotary shaft.
本发明一种乳腺机C臂回转的丝传动机构,其中所述乳腺机C臂回转的丝传动机构还包括带方形座轴承,带方形座轴承安装在丝传动从动回转轴与电磁制动器的衔铁盘之间。The invention relates to a wire drive mechanism for a C-arm rotation of a mammography machine, wherein the wire drive mechanism of the C-arm rotation of the mammography machine further comprises an armature with a square seat bearing, a square seat bearing mounted on the wire drive driven rotary shaft and the electromagnetic brake. Between the discs.
本发明一种乳腺机C臂回转的丝传动机构,其中所述丝传动从动轮的外壁上还设置有钢丝压板和圆柱形钢丝固定销,在钢丝固定销的侧壁上开设有第三通孔,钢丝固定销下部的侧壁上设置有螺纹,钢丝固定销通过外壁上的螺纹拧紧在丝传动从动轮外壁上开设的螺纹孔中,钢丝起始端打结后压在钢丝压板与丝传动从动轮外壁之间,并通过螺栓对钢丝进行锁紧固定,钢丝的终止端穿过钢丝固定销侧壁上的第三通孔后,钢丝固定销将钢丝压紧固定在螺纹孔底部。The invention relates to a wire drive mechanism for a C-arm rotation of a mammography machine, wherein a wire press plate and a cylindrical wire fixing pin are further disposed on an outer wall of the wire drive driven wheel, and a third through hole is opened on a side wall of the wire fixing pin. The side wall of the lower part of the wire fixing pin is provided with a thread, and the wire fixing pin is screwed through the thread on the outer wall to the threaded hole opened in the outer wall of the driven wheel of the wire drive, and the starting end of the wire is knotted and pressed on the wire plate and the wire drive driven wheel. Between the outer walls, the steel wire is locked and fixed by bolts. After the end end of the steel wire passes through the third through hole on the side wall of the wire fixing pin, the wire fixing pin presses the steel wire to the bottom of the threaded hole.
本发明一种乳腺机C臂回转的丝传动机构,其中所述钢丝锁紧块前部的中间位置设置有圆柱形突起,圆柱形突起的顶端与侧壁上分别开设有穿丝孔,两穿丝孔之间相互连通形成L形穿丝孔,钢丝的终止端从圆柱形突起侧壁上的穿丝孔进入,从连接杆顶端的穿丝孔穿出。The invention relates to a wire drive mechanism for a C-arm rotation of a mammography machine, wherein a cylindrical protrusion is arranged at an intermediate position of a front portion of the wire locking block, and a threaded hole is formed in a top end and a side wall of the cylindrical protrusion, respectively The wire holes communicate with each other to form an L-shaped threading hole, and the terminating end of the wire enters from the threading hole in the side wall of the cylindrical protrusion, and passes through the threading hole at the top end of the connecting rod.
本发明一种乳腺机C臂回转的丝传动机构,其中所述电机为步进电机。The invention relates to a wire drive mechanism for a C-arm rotation of a mammography machine, wherein the motor is a stepping motor.
本发明一种乳腺机C臂回转的丝传动机构,其中所述减速器为减速齿轮箱。The invention relates to a wire drive mechanism for a C-arm rotation of a mammography machine, wherein the reducer is a reduction gear box.
本发明一种乳腺机C臂回转的丝传动机构,其中所述丝传动主动轮与丝传动从动轮的外壁上开设有螺纹都为右旋螺纹,螺距为8mm,螺纹槽深3.6mm,螺纹长度为32mm。The invention relates to a wire drive mechanism for a C-arm rotation of a mammography machine, wherein the wire drive drive wheel and the wire drive driven wheel are provided with a right-hand thread on the outer wall of the driven wheel, the pitch is 8 mm, the thread groove depth is 3.6 mm, and the thread length It is 32mm.
本发明一种乳腺机C臂回转的丝传动机构,其中所述钢丝锁紧块为圆柱形,在钢丝锁紧块的外壁上沿圆周方向均匀开设有十二个定位孔。The invention relates to a wire drive mechanism for a C-arm rotation of a mammography machine, wherein the wire locking block is cylindrical, and twelve positioning holes are evenly opened in the circumferential direction on the outer wall of the wire locking block.
本发明一种乳腺机C臂回转的丝传动机构,其中所述丝传动从动轮与丝传动从动回转轴之间通过双键固定连接。The invention relates to a wire drive mechanism for a C-arm rotation of a mammography machine, wherein the wire drive driven wheel and the wire drive driven rotary shaft are fixedly connected by a double key.
本发明一种乳腺机C臂回转的丝传动机构与现有技术不同之处在于:本发明成本低、结构简单、安全系数高、运行平稳、钢丝长度调节方便。将钢丝的起始端与终止端都锁紧固定在丝传动从动轮上,并通过手动旋转钢丝锁紧块12,改变钢丝锁紧块定位销15插入钢丝锁紧块12外壁上不同的定位孔14,来对钢丝的长度进行微调,不仅结构简单、便于安装和维 修,而且大大提高了调节精度。在钢丝的终止端采用三级固定,钢丝锁紧块定位销、钢丝固定销和钢丝锁紧块分别对钢丝起到锁紧固定作用,确保有固定措施失效后,不至使钢丝末端脱离丝传动从动轮,导致C形臂失控,发生危险。采用电磁制动器将动力传递给C形臂,不仅可以对C形臂处于垂直和水平临界状态下的转动起到制动作用,有效防止打滑现象的发生,使转动更加平稳,而且还可以保证当C形臂过载或者需要急停时,只要断开电磁制动器的电源,电磁制动器与C臂回转轴之间就会失电断开,从而最大限度的保证人身安全。The wire drive mechanism of the C-arm rotation of the mammography machine is different from the prior art in that the invention has the advantages of low cost, simple structure, high safety factor, stable operation and convenient wire length adjustment. The starting end and the ending end of the steel wire are locked and fixed on the wire drive driven wheel, and the wire locking block positioning pin 15 is inserted into the different positioning holes 14 on the outer wall of the wire locking block 12 by manually rotating the wire locking block 12. To fine-tune the length of the wire, not only simple structure, easy to install and maintain Repair, and greatly improve the adjustment accuracy. Three-stage fixing is adopted at the end end of the steel wire, and the wire locking block positioning pin, the wire fixing pin and the wire locking block respectively lock and fix the steel wire, and ensure that after the fixing measures fail, the wire end is not separated from the wire transmission. The driven wheel causes the C-arm to lose control and is in danger. The electromagnetic brake is used to transmit the power to the C-arm, which not only can brake the rotation of the C-arm in vertical and horizontal critical states, but also effectively prevent the occurrence of slipping, make the rotation more stable, and also ensure that when C When the arm is overloaded or needs an emergency stop, as long as the power supply of the electromagnetic brake is disconnected, the electromagnetic brake and the C-arm rotary shaft will be disconnected from power, thereby maximizing personal safety.
下面结合附图对本发明的一种乳腺机C臂回转的丝传动机构作进一步说明。The yarn transmission mechanism of the C-arm rotation of the mammary gland of the present invention will be further described below with reference to the accompanying drawings.
附图说明DRAWINGS
图1为本发明一种乳腺机C臂回转的丝传动机构的正视图;Figure 1 is a front elevational view of a wire drive mechanism for a C-arm rotation of a mammary gland according to the present invention;
图2为本发明一种乳腺机C臂回转的丝传动机构中张紧力调节机构的正视图;Figure 2 is a front elevational view of the tension adjusting mechanism of the wire drive mechanism of the C-arm of the mammography machine of the present invention;
图3为本发明一种乳腺机C臂回转的丝传动机构安装在C形臂上的正视图。Figure 3 is a front elevational view of the wire drive mechanism of the C-arm of the mammography machine mounted on the C-arm of the present invention.
具体实施方式detailed description
如图1所示,为本发明一种乳腺机C臂回转的丝传动机构,包括步进电机1、减速齿轮箱2、丝传动主动轮3、丝传动从动轮4、丝传动从动轮回转轴5、带方形座轴承6、电磁制动器7和C臂回转轴8。步进电机1的输出轴与矩形减速齿轮箱2一侧壁上伸出的动力输入轴连接,减速齿轮箱2另一相邻侧壁上伸出的动力输出轴与圆柱形丝传动主动轮3固定连接,在丝传动主动轮3前部的外壁上开设有第一右旋螺纹9,螺距为8mm,螺纹槽深3.6mm,螺纹长度为32mm。在丝传动主动轮3的下面设置有张紧力调节机构,如图2所示,张紧力调节机构中设置有与丝传动主动轮3放置方向相同的圆柱形丝传动从动轮4,在丝传动从动轮4外壁的中间位置开置有第二右旋螺纹10,螺距为8mm,螺纹槽深3.6mm,螺纹长度为32mm。在丝传动从动轮4的前端与后端之间开设有第一圆形通孔11,在第一圆形通孔11中设置有圆柱形钢丝锁紧块12,在钢丝锁紧块12前部的中间位置设置有圆柱形突起,圆柱形突起的顶端与侧壁上分别开设有穿丝孔,两穿丝孔之间相互连通形成L形穿丝孔13。钢丝锁紧块12的外壁上沿圆周方向均匀开设有十二个定位孔14,在丝传动从动轮4外壁上开设有第二圆形通孔,在第二圆形通孔中设置有钢丝锁紧块定位销15,钢丝锁紧块定位销15穿过第二圆形通孔插入到钢丝锁紧块12外壁的定位孔14中。在丝传动从动轮4外壁上还设置有钢丝压板16和圆柱形钢丝固定销17,在钢丝固定销17侧壁的上部开设有第三通孔19,钢丝固定销17下部的侧壁上设置有螺纹。将钢丝的起始端打结后压在钢丝压板16与丝传动从动轮4外壁之间,并通过螺栓对钢丝进行锁紧固定。钢丝在第二右旋螺纹10与第一右旋螺纹9之间进行缠绕,钢丝固定销17通过外壁上的螺纹拧紧在丝传动从动轮4外壁上开设的螺纹孔中,钢丝的终止端穿过钢丝固定销17侧壁上的第三通孔19后,钢丝固定销17将钢丝压紧固定在螺纹孔 底部。钢丝的终止端从圆柱形突起侧壁上的穿丝孔进入,从圆柱形突起顶端的穿丝孔穿出,并在钢丝的终止端打结固定。丝传动从动轮4与丝传动从动回转轴5之间通过双键连接,提高了丝传动从动轮4与丝传动从动回转轴5之间的传递扭矩。丝传动从动回转轴5的另一端与电磁制动器7的衔铁盘连接,在丝传动从动回转轴5与电磁制动器7的衔铁盘之间安装有带方形座轴承6,电磁制动器7的吸盘固定安装再C臂回转轴8上,电磁制动器7的吸盘与衔铁盘之间通过调整套相互连接。As shown in FIG. 1 , the invention discloses a wire drive mechanism for a C-arm rotation of a mammary machine, comprising a stepping motor 1, a reduction gear box 2, a wire drive driving wheel 3, a wire transmission driven wheel 4, and a wire transmission driven wheel rotary shaft. 5. With square seat bearing 6, electromagnetic brake 7 and C arm rotary shaft 8. The output shaft of the stepping motor 1 is connected to a power input shaft extending from a side wall of the rectangular reduction gear box 2, and the power output shaft and the cylindrical wire drive driving wheel 3 projecting on the adjacent side wall of the reduction gear box 2 The fixed connection is provided with a first right-handed thread 9 on the outer wall of the front part of the wire drive driving wheel 3, the pitch is 8 mm, the thread groove depth is 3.6 mm, and the thread length is 32 mm. A tensioning force adjusting mechanism is disposed under the wire drive driving wheel 3. As shown in FIG. 2, the tensioning force adjusting mechanism is provided with a cylindrical wire driving driven wheel 4 in the same direction as the wire driving driving wheel 3, in the wire A second right-handed thread 10 is opened at an intermediate position of the outer wall of the drive driven wheel 4, the pitch is 8 mm, the thread groove depth is 3.6 mm, and the thread length is 32 mm. A first circular through hole 11 is defined between the front end and the rear end of the wire drive driven wheel 4, and a cylindrical wire locking block 12 is disposed in the first circular through hole 11 at the front of the wire locking block 12. The middle position is provided with a cylindrical protrusion, and the top end of the cylindrical protrusion and the side wall are respectively provided with a threading hole, and the two threading holes communicate with each other to form an L-shaped threading hole 13. On the outer wall of the wire locking block 12, twelve positioning holes 14 are uniformly opened in the circumferential direction, a second circular through hole is opened in the outer wall of the wire drive driven wheel 4, and a wire lock is arranged in the second circular through hole. The wire block positioning pin 15 is inserted into the positioning hole 14 of the outer wall of the wire lock block 12 through the second circular through hole. A wire pressing plate 16 and a cylindrical wire fixing pin 17 are further disposed on the outer wall of the wire drive driven wheel 4, and a third through hole 19 is defined in an upper portion of the side wall of the wire fixing pin 17, and a sidewall of the lower portion of the wire fixing pin 17 is disposed on the side wall Thread. The starting end of the steel wire is knotted and pressed between the steel wire pressing plate 16 and the outer wall of the wire driving driven wheel 4, and the steel wire is locked and fixed by bolts. The steel wire is wound between the second right-hand thread 10 and the first right-hand thread 9, and the wire fixing pin 17 is screwed through the thread on the outer wall to the threaded hole opened in the outer wall of the wire drive driven wheel 4, and the end end of the wire passes through After the third through hole 19 on the side wall of the wire fixing pin 17, the wire fixing pin 17 presses the wire into the threaded hole bottom. The terminating end of the wire enters from the threaded opening in the side wall of the cylindrical projection, passes through the threading hole at the top end of the cylindrical projection, and is knotted and fixed at the terminating end of the wire. The double-link connection between the wire drive driven wheel 4 and the wire drive driven rotary shaft 5 improves the transmission torque between the wire drive driven wheel 4 and the wire drive driven rotary shaft 5. The other end of the wire drive driven rotary shaft 5 is connected to the armature disk of the electromagnetic brake 7, and a square seat bearing 6 is mounted between the wire drive driven rotary shaft 5 and the armature disk of the electromagnetic brake 7, and the suction pad of the electromagnetic brake 7 is fixed. The re-c arm rotary shaft 8 is mounted, and the suction cup of the electromagnetic brake 7 and the armature disc are connected to each other by an adjusting sleeve.
本发明的工作过程为:如图3所示,将C臂回转轴8固定安装在C形臂18上,减速齿轮箱2和电磁制动器7安装在丝传动机构外壳20内,丝传动机构外壳20安装在C形臂18前端,C臂回转轴8安装的位置正好能够使电磁制动器7的衔铁盘与吸盘之间相互吸附。当C形臂18正常工作时,打开步进电机1,开启电磁制动器7的电源,电磁制动器7的衔铁盘与吸盘之间产生电磁力,衔铁盘能够带动吸盘旋转。步进电机1经过减速齿轮箱2将减速后的动力传递给丝传动主动轮3,丝传动主动轮3在动力的作用下旋转,并通过缠绕在第一右旋螺纹9和第二右旋螺纹10之间的钢丝将动力传递给丝传动从动轮4,带动丝传动从动轮4旋转,丝传动从动轮4通过丝传动从动轮回转轴5带动电磁制动器7的衔铁盘旋转,电磁制动器7的衔铁盘通过带动电磁制动器7的吸盘旋转,从而带动C臂回转轴8旋转,最终通过C臂回转轴8带动C形臂18旋转。当C形臂18停止工作时,关闭电磁制动器7的电源,电磁制动器7的衔铁盘失电,电磁制动器7的衔铁盘与吸盘之间不再有电磁力,电磁制动器7的吸盘通过自身的减速装置停止旋转,从而使C臂回转轴8的旋转停止,C形臂18的也停止旋转。在C形臂18工作过程中,可以对钢丝的长度进行微调,微调时首先取下钢丝锁紧块定位销15,同时拧动钢丝固定销17,使压紧在螺纹孔底部的钢丝能够运动。根据所需钢丝长度的不同手动旋转钢丝锁紧块12,改变钢丝锁紧块定位销15插入钢丝锁紧块12外壁上不同的定位孔14,螺纹孔底部的钢丝根据钢丝锁紧块定位销15插入定位孔14的不同进行运动,从而对钢丝的长度进行微调。The working process of the present invention is as follows: as shown in FIG. 3, the C-arm rotary shaft 8 is fixedly mounted on the C-arm 18, and the reduction gear box 2 and the electromagnetic brake 7 are mounted in the wire transmission mechanism housing 20, and the wire transmission mechanism housing 20 Mounted at the front end of the C-arm 18, the C-arm rotary shaft 8 is mounted at a position such that the armature disc of the electromagnetic brake 7 and the suction cup are attracted to each other. When the C-arm 18 is working normally, the stepping motor 1 is turned on, the power of the electromagnetic brake 7 is turned on, electromagnetic force is generated between the armature disc of the electromagnetic brake 7 and the suction cup, and the armature disc can drive the suction cup to rotate. The stepping motor 1 transmits the decelerated power to the wire drive driving wheel 3 through the reduction gear box 2, and the wire drive driving wheel 3 rotates under the action of the power, and is wound by the first right-hand thread 9 and the second right-hand thread. The wire between the 10 transmits the power to the wire drive driven wheel 4, and drives the wire drive driven wheel 4 to rotate. The wire drive driven wheel 4 drives the armature disk of the electromagnetic brake 7 through the wire drive driven wheel rotary shaft 5, and the armature of the electromagnetic brake 7 The disk rotates by the chuck of the electromagnetic brake 7, thereby driving the C-arm rotary shaft 8 to rotate, and finally the C-arm 18 is rotated by the C-arm rotary shaft 8. When the C-arm 18 stops working, the power supply of the electromagnetic brake 7 is turned off, the armature disc of the electromagnetic brake 7 is de-energized, there is no electromagnetic force between the armature disc of the electromagnetic brake 7 and the suction cup, and the suction cup of the electromagnetic brake 7 is decelerated by itself. The device stops rotating, so that the rotation of the C-arm rotary shaft 8 is stopped, and the C-arm 18 also stops rotating. During the operation of the C-arm 18, the length of the wire can be finely adjusted. When the fine adjustment is made, the wire locking block positioning pin 15 is first removed, and the wire fixing pin 17 is screwed to move the wire pressed at the bottom of the threaded hole. The wire locking block 12 is manually rotated according to the required length of the wire, and the wire locking block positioning pin 15 is inserted into the different positioning holes 14 on the outer wall of the wire locking block 12. The wire at the bottom of the threaded hole is according to the wire locking block positioning pin 15 The difference in insertion of the positioning holes 14 is performed to finely adjust the length of the wire.
本发明一种乳腺机C臂回转的丝传动机构,将钢丝的起始端与终止端都锁紧固定在丝传动从动轮4上,并通过手动旋转钢丝锁紧块12,改变钢丝锁紧块定位销15插入钢丝锁紧块12外壁上不同的定位孔14,来对钢丝的长度进行微调,不仅结构简单、便于安装和维修,而且大大提高了调节精度。在钢丝的终止端采用三级固定,钢丝锁紧块定位销15、钢丝固定销17和钢丝锁紧块12分别对钢丝起到锁紧固定作用,确保有固定措施失效后,不至使钢丝末端脱离丝传动从动轮4,导致C形臂18失控,发生危险。采用电磁制动器7将动力传递给C形臂18,不仅可以对C形臂18处于垂直和水平临界状态下的转动起到制动作用,有效防止打滑现象的发生,使转动更加平稳,而且还可以保证当C形臂18过载或者需要急停时,只 要断开电磁制动器7的电源,C臂回转轴8停止旋转,从而最大限度的保证人身安全。本实用新型成本低、结构简单、安全系数高、运行平稳、钢丝长度调节方便,与现有技术相比具有明显的优点。The invention discloses a wire drive mechanism for a C-arm rotation of a mammary gland, wherein the start end and the end end of the steel wire are both locked and fixed on the wire drive driven wheel 4, and the wire locking block is changed by manually rotating the wire locking block 12. The pin 15 is inserted into different positioning holes 14 on the outer wall of the wire locking block 12 to finely adjust the length of the wire, which is not only simple in structure, convenient for installation and maintenance, but also greatly improves the adjustment precision. Three-stage fixing is adopted at the end end of the steel wire, and the wire locking block positioning pin 15, the wire fixing pin 17 and the wire locking block 12 respectively lock and fix the steel wire, and ensure that after the fixing measures fail, the wire end is not caused. Leaving the wire drive driven wheel 4 causes the C-arm 18 to run out of control, posing a hazard. The electromagnetic brake 7 is used to transmit the power to the C-shaped arm 18, which not only can brake the rotation of the C-arm 18 in the vertical and horizontal critical states, thereby effectively preventing the occurrence of the slip phenomenon, making the rotation more stable, and also Ensure that when the C-arm 18 is overloaded or requires an emergency stop, only To disconnect the power of the electromagnetic brake 7, the C-arm rotary shaft 8 stops rotating, thereby maximally ensuring personal safety. The utility model has the advantages of low cost, simple structure, high safety factor, stable operation and convenient wire length adjustment, and has obvious advantages compared with the prior art.
以上所述的实施例仅仅是对本发明的优选实施方式进行描述,并非对本发明的范围进行限定,在不脱离本发明设计精神的前提下,本领域普通技术人员对本发明的技术方案作出的各种变形和改进,均应落入本发明权利要求书确定的保护范围内。The embodiments described above are only intended to describe the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various embodiments of the present invention may be made by those skilled in the art without departing from the spirit of the invention. Modifications and improvements are intended to fall within the scope of the invention as defined by the appended claims.
工业实用性Industrial applicability
本发明一种乳腺机C臂回转的丝传动机构可以有效的提高乳腺机C型臂的安全性,其中所采用的零部件都可以通过工业化批量生产和装配,因此具有很大的市场前景和很强的工业实用性。 The wire drive mechanism of the C-arm of the mammography machine can effectively improve the safety of the C-arm of the mammography machine, and the components used therein can be mass-produced and assembled through industrialization, thus having great market prospects and very Strong industrial applicability.

Claims (9)

  1. 一种乳腺机C臂回转的丝传动机构,其特征在于:包括电机(1)、减速器(2)、丝传动主动轮(3)、丝传动从动轮(4)、丝传动从动轮回转轴(5)、电磁制动器(7)和C臂回转轴(8),电机(1)的输出轴与减速器(2)的动力输入轴连接,减速器(2)的动力输出轴与丝传动主动轮(3)固定连接,在丝传动主动轮(3)下面放置有丝传动从动轮(4),在丝传动主动轮(3)与丝传动从动轮(4)的外壁上都开设有螺纹,在丝传动从动轮(4)的前后两端之间开设有第一圆形通孔(11),在第一圆形通孔(11)中设置有钢丝锁紧块(12),在钢丝锁紧块(12)前部的中间位置开设有穿丝孔(13),钢丝锁紧块(12)的外壁上开设有多个定位孔,在丝传动从动轮(4)外壁上开设有第二圆形通孔,在第二圆形通孔中设置有钢丝锁紧块定位销(15),钢丝锁紧块定位销(15)穿过第二圆形通孔插入到钢丝锁紧块(12)外壁的定位孔(14)中,钢丝起始端固定在丝传动从动轮(4)外壁上,钢丝在丝传动主动轮(3)与丝传动从动轮(4)的外壁上的螺纹之间进行缠绕,钢丝终止端在丝传动从动轮(4)外壁上固定后,穿过钢丝锁紧块(12)上的穿丝孔(13),并在钢丝的终止端打结固定,丝传动从动轮(4)与丝传动从动回转轴(5)的一端固定连接,丝传动从动回转轴(5)的另一端与电磁制动器(7)的衔铁盘连接,电磁制动器(7)的吸盘固定安装在C臂回转轴(8)上。A wire drive mechanism for a C-arm rotation of a mammary machine, comprising: a motor (1), a speed reducer (2), a wire drive drive wheel (3), a wire drive driven wheel (4), a wire drive driven wheel rotary shaft (5) Electromagnetic brake (7) and C-arm rotary shaft (8). The output shaft of the motor (1) is connected to the power input shaft of the reducer (2), and the power output shaft and the wire drive of the reducer (2) are active. The wheel (3) is fixedly connected, and a wire drive driven wheel (4) is placed under the wire drive driving wheel (3), and a thread is arranged on the outer wall of the wire driving driving wheel (3) and the wire driving driven wheel (4). A first circular through hole (11) is opened between the front and rear ends of the wire drive driven wheel (4), and a wire locking block (12) is arranged in the first circular through hole (11), in the wire lock A threading hole (13) is defined in a middle portion of the front portion of the tight block (12), and a plurality of positioning holes are formed on the outer wall of the wire locking block (12), and a second hole is opened on the outer wall of the wire drive driven wheel (4) a circular through hole, in which a wire locking block positioning pin (15) is disposed in the second circular through hole, and the wire locking block positioning pin (15) is inserted through the second circular through hole into the wire locking block (12) ) in the positioning hole (14) of the outer wall, the steel wire The starting end is fixed on the outer wall of the wire drive driven wheel (4), and the wire is wound between the wire drive driving wheel (3) and the thread on the outer wall of the wire driving driven wheel (4), and the wire end end is in the wire driving driven wheel (4 After fixing on the outer wall, pass through the threading hole (13) on the wire locking block (12), and knot the fixing at the end of the wire, the wire drive driven wheel (4) and the wire drive driven rotary shaft (5) One end of the wire drive is fixedly connected, and the other end of the wire drive driven rotary shaft (5) is connected to the armature disk of the electromagnetic brake (7), and the suction cup of the electromagnetic brake (7) is fixedly mounted on the C-arm rotary shaft (8).
  2. 根据权利要求1所述的一种乳腺机C臂回转的丝传动机构,其特征在于:所述乳腺机C臂回转的丝传动机构还包括带方形座轴承(6),带方形座轴承(6)安装在丝传动从动回转轴(5)与电磁制动器(7)的衔铁盘之间。The wire drive mechanism for a C-arm rotation of a mammography machine according to claim 1, wherein the wire drive mechanism of the C-arm of the mammography machine further comprises a square seat bearing (6) with a square seat bearing (6). ) is installed between the wire drive driven rotary shaft (5) and the armature plate of the electromagnetic brake (7).
  3. 根据权利要求1所述的一种乳腺机C臂回转的丝传动机构,其特征在于:所述丝传动从动轮(4)的外壁上还设置有钢丝压板(16)和圆柱形钢丝固定销(17),在钢丝固定销(17)的侧壁上开设有第三通孔(19),钢丝固定销(17)下部的侧壁上设置有螺纹,钢丝固定销(17)通过外壁上的螺纹拧紧在丝传动从动轮(4)外壁上开设的螺纹孔中,钢丝起始端打结后压在钢丝压板(16)与丝传动从动轮(4)外壁之间,并通过螺栓对钢丝进行锁紧固定,钢丝的终止端穿过钢丝固定销(17)侧壁上的第三通孔(19)后,钢丝固定销(17)将钢丝压紧固定在螺纹孔底部。The wire drive mechanism for a C-arm rotation of a mammography machine according to claim 1, characterized in that: the outer wall of the wire drive driven wheel (4) is further provided with a steel wire pressing plate (16) and a cylindrical steel wire fixing pin ( 17), a third through hole (19) is opened on the side wall of the wire fixing pin (17), the side wall of the lower part of the wire fixing pin (17) is provided with a thread, and the wire fixing pin (17) passes the thread on the outer wall Tightening the threaded hole in the outer wall of the wire drive driven wheel (4), the starting end of the wire is knotted and pressed between the wire pressing plate (16) and the outer wall of the wire driven driven wheel (4), and the wire is locked by bolts. After fixing, the terminating end of the wire passes through the third through hole (19) on the side wall of the wire fixing pin (17), and the wire fixing pin (17) presses the wire to the bottom of the threaded hole.
  4. 根据权利要求1所述的一种乳腺机C臂回转的丝传动机构,其特征在于:所述钢丝锁紧块(12)前部的中间位置设置有圆柱形突起,圆柱形突起的顶端与侧壁上分别开设有穿丝孔,两穿丝孔之间相互连通形成L形穿丝孔(13),钢丝的终止端从圆柱形突起侧壁上的穿丝孔进入,从连接杆顶端的穿丝孔穿出。A wire drive mechanism for a C-arm rotation of a mammography machine according to claim 1, wherein a central portion of the front portion of the wire locking block (12) is provided with a cylindrical protrusion, a top end and a side of the cylindrical protrusion The wall is respectively provided with a threading hole, and the two threading holes communicate with each other to form an L-shaped threading hole (13), and the terminating end of the steel wire enters from the threading hole on the side wall of the cylindrical protrusion, and is worn from the top end of the connecting rod The wire holes are worn out.
  5. 根据权利要求1所述的一种乳腺机C臂回转的丝传动机构,其特征在于:所述电机(1)为步进电机(1)。A wire drive mechanism for a C-arm rotation of a mammography machine according to claim 1, characterized in that the motor (1) is a stepping motor (1).
  6. 根据权利要求1所述的一种乳腺机C臂回转的丝传动机构,其特征在于:所述减速器 (2)为减速齿轮箱(2)。A wire drive mechanism for a C-arm rotation of a mammography machine according to claim 1, wherein said speed reducer (2) is the reduction gear box (2).
  7. 根据权利要求1所述的一种乳腺机C臂回转的丝传动机构,其特征在于:所述丝传动主动轮(3)与丝传动从动轮(4)的外壁上开设有螺纹都为右旋螺纹,螺距为8mm,螺纹槽深3.6mm,螺纹长度为32mm。A wire drive mechanism for a C-arm rotation of a mammography machine according to claim 1, wherein the wire drive driving wheel (3) and the wire drive driven wheel (4) are provided with a thread on the outer wall of the driven wheel (4). Thread, pitch 8mm, thread groove depth 3.6mm, thread length 32mm.
  8. 根据权利要求1所述的一种乳腺机C臂回转的丝传动机构,其特征在于:所述钢丝锁紧块(12)为圆柱形,在钢丝锁紧块(12)的外壁上沿圆周方向均匀开设有十二个定位孔(14)。The wire drive mechanism for a C-arm rotation of a mammography machine according to claim 1, wherein the wire locking block (12) is cylindrical and circumferentially on the outer wall of the wire locking block (12). Twelve positioning holes (14) are evenly opened.
  9. 根据权利要求1所述的一种乳腺机C臂回转的丝传动机构,其特征在于:所述丝传动从动轮(4)与丝传动从动回转轴(5)之间通过双键固定连接。 The wire drive mechanism for a C-arm rotation of a mammography machine according to claim 1, characterized in that the wire drive driven wheel (4) and the wire drive driven rotary shaft (5) are fixedly connected by a double key.
PCT/CN2015/071826 2014-03-26 2015-01-29 Wire transmission mechanism for mammography machine c arm rotation WO2015143945A1 (en)

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