WO2012016486A1 - 一种拉珠卷帘制头 - Google Patents

一种拉珠卷帘制头 Download PDF

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Publication number
WO2012016486A1
WO2012016486A1 PCT/CN2011/076923 CN2011076923W WO2012016486A1 WO 2012016486 A1 WO2012016486 A1 WO 2012016486A1 CN 2011076923 W CN2011076923 W CN 2011076923W WO 2012016486 A1 WO2012016486 A1 WO 2012016486A1
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WO
WIPO (PCT)
Prior art keywords
head
planetary gear
torsion spring
locking
self
Prior art date
Application number
PCT/CN2011/076923
Other languages
English (en)
French (fr)
Inventor
邱永忠
Original Assignee
广州市伽瑞窗饰制品有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广州市伽瑞窗饰制品有限公司 filed Critical 广州市伽瑞窗饰制品有限公司
Priority to US13/392,522 priority Critical patent/US20130126288A1/en
Publication of WO2012016486A1 publication Critical patent/WO2012016486A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/12—Friction clutches with an expansible band or coil co-operating with the inner surface of a drum or the like
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B9/40—Roller blinds
    • E06B9/42—Parts or details of roller blinds, e.g. suspension devices, blind boxes
    • E06B9/50—Bearings specially adapted therefor

Definitions

  • This invention relates to a roller blind head, and more particularly to a heavy-duty ball rolling head for planetary gear reduction of a front self-locking torsion spring. Background technique
  • roller blinds are often used as sunshade and shading equipment.
  • the roller blinds are divided into electric roller blinds and manual roller blinds.
  • the cost is cheap and the range of use is wider.
  • the general manual ball rolling shutters include several main components such as a head mounting code, a tail mounting code, a head, a tail, a bead, and a grooved tube for installing a roller blind fabric.
  • the general head includes The spring self-locking device and the partial head also include a planetary gear reduction device. Thereby achieving the role of positioning and operation.
  • the beaded ball in the roller blind is embedded in the sprocket wheel groove in the head.
  • the general head is located near the end of the mounting code, and the end near the tail is the rear end.
  • the current head has the torsion spring self-locking device disposed on the side close to the mounting code of the head, and the planetary gear reduction device is arranged.
  • this is a rear mounting method that is, the torque from the sprocket is first transmitted to the slot through the planetary gear reduction device and then through the torsion spring self-locking device. Tube. Since the roller blind fabric and the lower hanging piece have their own weight, such a rear arrangement will cause the torsion spring in the torsion spring self-locking device to always be fully prestressed under the weight, thus designing and manufacturing a heavy load such as a load of 20 kg.
  • the torsion spring When pulling the bead shutter, the torsion spring must choose high-strength material, and the torsion spring wire has a relatively large diameter, and even more torsion springs can be provided to have sufficient strength to bear the weight. This increases the resistance of the system and pulls it very heavy.
  • the current travel limit device is because the limit member of the end generally rotates only and is fixed at a fixed position, so that the limit device can only be limited at a single point.
  • One of the objects of the present invention is to provide a heavy-duty ball bearing roller head with a planetary gear deceleration of a front built-in self-locking torsion spring, which interchanges the position of the conventional planetary gear reduction device and the torsion spring self-locking device, and is about to be twisted
  • the spring self-locking device is built in the planetary gear reduction device, so that the force generated by the weight of the roller blind fabric and its pendant is first saved by the planetary gear reduction device, and then transmitted to the torsion spring self-locking device, so that the force acting on the torsion spring
  • the size is the self-weight multiplied by the reduction ratio, which greatly reduces the pre-tightening force of the torsion spring and reduces the system resistance, so that it is possible to make a heavy-duty roller blind;
  • the second object of the present invention is to provide a heavy-duty ball rolling shutter head with a planetary gear deceleration of a front self-locking torsion spring.
  • top loading it is only necessary to unscrew the fixing of the planetary gear reduction device and the head body. Screw, fix the ball guide to the groove A or groove B of the head block; when side mounting is required, simply unscrew the fixing screws of the planetary gear reducer and the head block to guide the bead
  • the device is fixed to the groove C or the groove D of the head block body. Therefore, according to the needs of the installation position and orientation of the cover roller blind, the present invention can realize the side loading of the cover roller blind according to the operation of the single cylinder. Top, left and right functions to meet the needs of different occasions To achieve an increase in the application range of the roller blind head;
  • the third object of the present invention is to provide a heavy-duty ball rolling shutter head with a planetary gear deceleration of a front self-locking torsion spring, and a travel limit device, wherein the travel limit device is supported by a limit screw and a rod a stroke nut and a limit nut coupled to the thread on the body, and a protruding end around the stroke nut which is engaged with the inner wall of the groove tube, so that the stroke nut and the groove tube rotate synchronously, and the stroke nut is located at the limit nut and the limit screw rod Between the heads, it can only move within this range, which limits the number of turns of the groove tube, indirectly controls the lifting stroke of the roller blind, and prevents the groove tube from rotating excessively, causing the reverse rotation to achieve the upper and lower doubles of the roller blind. Point limit.
  • a heavy-duty ball bearing roller head with a planetary gear deceleration of a front built-in self-locking torsion spring comprising: a head seat; a sprocket disposed on a side of the head seat near the tail end, and having a central position a groove having a through hole at a center thereof; a rotating arm, the rotating arm is provided with a front protruding arm and a rear protruding arm at two ends thereof along a center line thereof, and the front protruding arm is inserted into the sprocket Coupling and synchronously rotating with the sprocket; a torsion spring self-locking device, which is sleeved around the periphery of the rotating arm, and the inner region is divided into a locking zone and an unlocking zone by the inner folding arms of the two ends thereof, the rotation The rear extension arm of the arm is inserted into the unlocking area to rotate; the planetary gear reduction device is sleeved on the periphery of
  • the headstock includes a head base body, a ball guiding device and an installation code, and the head body (which is a rectangle, the head body is fixed by an installation code on one side, and the other three
  • the groove (A, B, C, D) of the fixed bead guiding device is opened, and the bead guiding device (1-2) can be fixed to the head body (1-1) as needed.
  • a travel limit device is further included.
  • the travel limit device includes a limit screw, a stroke nut and a limit nut, and one end of the limit screw is connected to the tail end of the mandrel.
  • the mandrel head is slotted, and a protrusion is disposed at a center of the mating surface of the head base and the sprocket, and the protrusion is inserted into a slot of the mandrel head, thereby causing the mandrel to The head block is fixedly coupled.
  • the planetary gear reduction device includes: a planetary gear reduction device body having an inner tooth circumferentially disposed with an inner tooth that meshes with the planetary gear train, the side away from the tail end mating with the sprocket, and then the head The seat is fixedly coupled such that the sprocket is located between the main body of the planetary gear reducer and the head block; the sun gear is a sun gear of the planetary gear train and is coaxial with the main body of the planetary gear reducer, and has a sector on a side close to the arm a protrusion protruding in a locking region of the torsion spring self-locking device; a planetary carrier supported on a periphery of the central gear and coaxial therewith; a planetary gear mounted on the planetary carrier and simultaneously With the line The inner tooth groove of the inner wall of the main body of the star gear reduction device meshes with the sun gear.
  • the number of planet wheels is four (or other number) and is evenly distributed on the planet carrier.
  • the planetary reduction gear unit is provided with a planetary wheel end cover that is mounted to the planetary gear carrier and that presses the shaft of the planetary gear to fix it.
  • the reduction ratio of the planetary gear reduction device is 1:4, and may be other ratios.
  • the torsion spring self-locking device comprises: a torsion spring seat; a torsion spring of the head, which is sleeved in the torsion spring seat, and the torsion spring spring body is folded into the center of the torso to form an arm, which will be twisted
  • the interior of the spring self-locking is divided into a sector-shaped locking region and a complementary unlocking region, wherein the projection of the sun gear in the planetary gear reduction device is inserted into the locking region through the torsion spring seat, the rotation The rear extension arm of the arm is inserted into the unlocking area for rotation.
  • the annular gap between the sprocket and the rotating arm, the head sleeve and the travel limiting device to be fitted thereto are respectively installed with a front ball bearing and a rear ball bearing. .
  • the front ball bearing and the rear ball bearing are both deep groove ball shafts 7
  • the limit screw of the peripheral coupled to the mandrel is a right (and possibly left) thread.
  • the manual ball rolling shutter head of the invention has a conventional planetary gear reduction device and a torsion spring
  • the position of the lock device is interchanged, that is, the torsion spring self-locking device is built in the planetary gear reduction device, so that the force generated by the weight of the roller blind fabric and its pendant is first transmitted to the torsion spring self-locking device through the planetary gear reduction device.
  • the magnitude of the force acting on the torsion spring is the self-weight multiplied by the reduction ratio, which greatly reduces the pre-tightening force of the torsion spring and reduces the system resistance.
  • the manual beaded roller blind head has a large bearing weight, and is mounted to the roller blind to make the lifting and lowering of the roller blind smooth and labor-saving, and is widely used in various manual ball rolling shutters, especially in heavy-duty assemblies;
  • the invention further comprises a travel limit device consisting of a limit screw and a stroke nut and a limit nut which are sleeved on the rod body and threadedly coupled thereto, and the projecting nut is provided with a protruding end which is engaged with the inner wall of the groove tube , the stroke nut and the groove tube rotate synchronously, and the stroke nut is located between the limit nut and the limit screw head, and can only move within the range, thereby limiting the number of rotations of the groove tube, indirectly controlling The lifting stroke of the roller blind realizes the upper and lower limits.
  • Figure 1 is an overall large assembly exploded view of the present invention and its assembly with the travel limit device Schematic diagram
  • Figure 2 is an exploded view of the planetary gear reduction device of the present invention
  • Figure 3 is an exploded view of the torsion spring self-locking device of the present invention.
  • FIG. 4 is a detailed view of the structure explosion in the present invention.
  • Figure 5 is a half cross-sectional view of the present invention.
  • Figure 6 is a perspective view of the mandrel in the present invention
  • Figure 7 is a bead guide device in the present invention fixed head block position A;
  • Figure 8 is the bead guide device of the present invention fixed head block position B;
  • Figure 9 is a bead guide device in the present invention fixed head block position C;
  • Figure 10 is a fixed bead body position D of the bead guiding device in the present invention.
  • a heavy-duty beaded roller blind head with a planetary gear deceleration of a front built-in self-locking torsion spring includes:
  • the head block 1 , the mandrel 2 , the sprocket 3 , the arm 4 , the torsion spring self-locking device 5 , the planetary gear deceleration device 6 and the travel limit device 10 are formed.
  • the head block 1 includes a head block body 1-1, a bead guiding device 1-2 and an installation code 1-3, and the head block body 1-1 is rectangular, and the head block body 1-1 passes through the mounting code 1- 3 is used for fixing, and the other three sides are provided with grooves (A, B, C, D) for fixing the ball guiding device 1-2.
  • a sprocket 3 is disposed on a side of the headstock 1 near the tail end, and is provided with an EJ slot at a central position, and the EJ slot is centrally opened;
  • the rotating arm 4 is provided with a front protruding arm and a rear protruding arm at two ends thereof along a center line thereof, and the front protruding arm is inserted into the sprocket 3 to be coupled thereto and can rotate synchronously with the sprocket 3 a torsion spring self-locking device 5, which is sleeved around the periphery of the rotating arm 4, and the inner cavity is divided into a locking area and a complementary unlocking area, and the rear protruding arm of the rotating arm 4 is inserted into the unlocking Rotating in the area;
  • a planetary gear reduction device 6 is disposed on a periphery of the torsion spring self-locking device 5 and has a front end adjacent to the headstock 1 as a front end, wherein the torsion spring self-locking device 5 is built therein and located at the front end, and the outer end thereof
  • the ring gear is fixedly coupled with the headstock 1, and the sun gear in the center of the planetary gear train is provided with a protrusion which is stuck in the locking region of the torsion spring self-locking device 5;
  • the main body 61 of the planetary gear reducer has a tooth groove as a fixed outer ring gear of the planetary gear train on the inner circumference thereof, and a side away from the tail end is engaged with the sprocket 3, and then the head base body in the head block 1 1-1 is fixedly coupled by screws such that the sprocket 3 is located between the main body of the planetary gear reducer 61 and the headstock 1;
  • the sun gear 62 is a sun gear of
  • One side of the 4 is provided with a scalloped protrusion which is stuck in the locking region of the torsion spring self-locking device 5 a planetary wheel carrier 64 that is sleeved on the periphery of the sun gear 62 and coaxial therewith; a planet gear 63 mounted on the planet carrier 64 and simultaneously with the inner circumference of the planet gear reduction body 61 The slot and the sun gear 62 are engaged.
  • the number of the planetary gears 63 may be four, and is evenly distributed on the planet carrier 64.
  • the reduction ratio of the planetary gear reduction device 6 is 1:4, and the planetary gear is decelerated.
  • the device 6 can also be provided with a planet wheel end cap 65 which is mounted to the planet carrier 14 and which presses the shaft of the planet gear 63 to secure it.
  • a mandrel 2 is disposed at the central axis, the head of the mandrel 2 is slotted, and a protrusion is formed at the center of the mating face of the headstock 1 and the sprocket 3, and the protrusion is inserted into the slot of the head of the mandrel 2. So that the mandrel 2 is fixedly coupled with the headstock 1, while the head is stuck at the groove of the sprocket 3, the tail portion passes through the central hole of the groove, and then passes through the rotating arm 4, the torsion spring self-locking device 5 and planetary gear reduction device 6;
  • the travel limiter 10 is connected to the other end of the mandrel 2, and the limit screw 10 is a right (or left) screw thread; the travel limit device further includes a sleeve on the rod and is threadedly coupled thereto.
  • the stroke nut 10-2 and the limit nut 10-3, the stroke nut 10-2 is provided with a protruding end that is engaged with the inner wall of the groove tube (not shown), so that the stroke nut 10-2 rotates synchronously with the groove tube.
  • the stroke nut 10-2 is located between the limit nut 10-3 and the rod of the limit screw 10-1, and can only move within this range, thus limiting the number of turns of the groove tube and indirectly controlling the volume.
  • the head sleeve 7 is sleeved around the periphery of the planetary gear reduction device 6 and is engaged with the output end of the planetary gear reduction device 6.
  • the torsion spring is self-locking.
  • the device 5 comprises: a torsion spring seat 52; a torsion spring 51, which is sleeved in the torsion spring seat 52, and the torsion spring spring body is folded inwardly into the center to divide the inner cavity of the torsion spring self-locking device 5 into a fan-shaped lock. a tight area and an unlocking area complementary thereto, the protrusion of the sun gear in the planetary gear reduction device 6 is caught in the locking region through the torsion spring seat 52, and the rear extension arm of the arm 4 is inserted Rotate into the unlocking area.
  • the outer sleeve sleeve 7 is covered with a groove tube for hanging the curtain cloth, and the torque from the groove tube is transmitted to the output end of the planetary gear reduction device 6 through the head sleeve 7, that is, the sun gear 62, and the center gear
  • the fan-shaped projection of 62 is caught in the sector-shaped locking region of the torsion spring 51 of the head, and the torsion spring 51 of the head generates a corresponding reaction torque to the input torque and cancels it to achieve self-locking; when the torque from the sprocket 3 passes through
  • the arm 4 directly dials the sun gear 62, the head torsion spring 51 does not block the input torque, thereby smoothly rotating the groove tube;
  • the manual ball rolling head of the present invention combines the conventional planetary gear reduction device 6 with The position of the torsion spring self-locking device 5 is interchanged, that is, the front end of the torsion spring self-locking device 5 is built in the planetary gear reduction device 6, so that the force generated
  • the magnitude of the force acting on the torsion spring 16 is the self-weight multiplied by the reduction ratio, which greatly reduces the pre-tightening force of the torsion spring 51, saving production and arrangement.
  • the cost of the head torsion spring 51 so
  • the manual beaded roller blind head of the invention can carry a large weight, and is installed after being installed into the roller blind, so that the lifting and lowering of the roller blind is smooth, saving time and labor, and is widely used for various assembly bodies, especially heavy-weight manual ball rolling shutters. in.
  • annular gap between the sprocket 3 and the rotating arm 4, the head sleeve 7 and the travel limiting device to be engaged therewith Front rolling bearing 8 and rear rolling bearing 9 are respectively installed; the front rolling shaft Both the bearing 8 and the rear rolling bearing 9 are deep groove ball bearings; the two sets of bearings serve to stabilize the structure and reduce the rotational wear of the components.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)

Description

一种拉珠卷帘制头 技术领域
本发明涉及一种卷帘制头，特别是一种前内置自锁扭簧的行星齿 轮减速的重载拉珠卷帘制头。 背景技术
如今， 在商务办公大楼、 宾馆、 餐厅、 办公室和家庭中， 经常用 到拉珠卷帘作为遮阳、 遮光设备。 卷帘分为电动卷帘和手动拉珠卷帘 两种， 其中又因为手动手动拉珠卷帘结构筒单， 成本便宜， 使用的范 围更为广泛。
一般的手动拉珠卷帘， 都包括有头安装码、 尾安装码、 制头、 制 尾、 拉珠、 安装卷帘面料用的槽管等几个主要部件， 另外， 一般制头 内都含有弹簧自锁装置、部分制头还包含有行星轮减速装置。从而实 现定位和操作省力的作用。
卷帘中的拉珠珠体嵌入位于制头中的链轮轮槽中，人通过拉动拉 珠， 带动链轮转动， 链轮再将转矩传递到槽管上， 带动槽管转动， 实 现面料的升降动作。
一般的制头以靠近投安装码的一端为前端，靠近制尾的一端为后 端， 而目前的制头将扭簧自锁装置布置在靠近制头安装码的一侧、行 星轮减速装置布置在靠近制尾的一侧， 这是一种后置安装方式， 即来 自链轮的转矩先通过行星轮减速装置，再通过扭簧自锁装置传递到槽 管。 由于卷帘面料和下面挂件有自重， 这样的后置布置方式会使得扭 簧自锁装置里的扭簧要一直处于完全承受该重量的预紧状态，这样在 设计制造承重 20kg这类的重载拉珠卷帘时， 扭簧就必须选择高强度 的材料， 并且扭簧簧钢丝直径较粗， 甚至设置更多的扭簧才能有足够 的强度承受重量。 这样就增加了系统的阻力， 拉动起来非常沉重。
另外， 现在的行程限位装置是由于端部的限位件一般只转动， 被 固定在固定的位置， 致使限位装置只能单点限位。
发明内容
本发明的目的之一，是提供一种前内置自锁扭簧的行星齿轮减速 的重载拉珠卷帘制头将传统的行星轮减速装置与扭簧自锁装置的位 置互换， 即将扭簧自锁装置前内置于行星轮减速装置中，使得卷帘面 料及其挂件的自重产生的力先通过行星轮减速装置省力，再传递到扭 簧自锁装置， 这样作用在扭簧上的力的大小就是所述自重乘以减速 比， 极大减轻了扭簧的预紧力， 减小了系统阻力， 才可能制作重载卷 帘；
本发明的目的之二，是提供前内置自锁扭簧的行星齿轮减速的重 载拉珠卷帘制头， 在需要顶装时， 只需拧开行星轮减速装置与制头座 体的固定螺釘， 将拉珠导向装置固定在制头座体的凹槽 A或凹槽 B; 需要侧装时， 只需拧开行星轮减速装置与制头座体的固定螺釘， 将所 述拉珠导向装置固定在制头座体的凹槽 C或凹槽 D, 因此， 本发明根 据带罩卷帘的安装位置和方位的需要，只要进行筒单的操作即可实现 带罩卷帘的侧装、 顶装、 左装、 右装的功能， 从而满足不同场合的需 要， 达到提高了卷帘制头的应用范围；
本发明的目的之三，是提供前内置自锁扭簧的行星齿轮减速的重 载拉珠卷帘制头，还包括行程限位装置， 其中行程限位装置由限位螺 杆和套在其杆身上并与其螺纹联接的行程螺母和限位螺母，行程螺母 周围设有与槽管内壁卡接的伸出端， 使得行程螺母与槽管同步转动， 同时行程螺母位于限位螺母与限位螺杆杆头之间，并只能在这段范围 内运动，这样便限制了槽管转动的圈数，间接控制了卷帘的升降行程， 并且防止槽管过度旋转导致反转， 实现卷帘的上下双点限位。
本发明解决其技术问题的解决方案是：
一种前内置自锁扭簧的行星齿轮减速的重载拉珠卷帘制头， 包 括： 制头座； 链轮， 其设置在所述制头座靠近制尾的侧面， 并且中心 位置设有凹槽， 所述凹槽中心开有通孔； 转臂， 所述转臂沿其中心线 向两端设置有前伸出臂与后伸出臂，所述前伸出臂插入链轮中与之联 接并随所述链轮同步转动； 扭簧自锁装置， 其套在所述转臂外围， 并 且内部区域分割被其两端的内折支臂分为锁紧区和解锁区域，所述转 臂的后伸出臂插入到所述解锁区域中转动； 行星轮减速装置， 其套在 所述扭簧自锁装置外围并以靠近制头座的一端为前端，使扭簧自锁装 置内置于其中并位于所述前端， 且其带有内齿与制头座固定联接，位 于其中心的作为行星轮系中的太阳轮设有突起，该突起卡在扭簧自锁 装置锁紧区域中； 芯轴， 其设置于中轴处， 并且头部与制头座固定联 接， 同时该头部卡在链轮的凹槽处， 其尾部穿过所述凹槽的中心孔后 贯穿转臂、 扭簧自锁装置和行星轮减速装置； 制头管套， 其套在所述 行星轮减速装置的外围并与行星轮减速装置输出端卡接。
作为本发明优选实施例， 所述的制头座包括制头座体， 拉珠导向 装置和安装码， 制头座体（是矩形， 制头座体一边通过安装码用于固 定， 其另外三边开有固定拉珠导向装置的凹槽（A、 B、 C、 D ) , 才艮据 需要， 所述拉珠导向装置（1-2 )可固定在制头座体（1-1 ) 的凹槽 A 或 EJ槽 B或 EJ槽 C或 EJ槽 D处； 需要顶装时， 只需拧开行星轮减速装 置与制头座体的固定螺釘，将所述拉珠导向装置固定在制头座体的凹 槽 A或 EJ槽 B; 需要侧装时， 只需拧开行星轮减速装置与制头座体的 固定螺釘，将所述拉珠导向装置固定在制头座体的凹槽 C或凹槽 D。 。
作为本发明优选实施例，还包括行程限位装置， 所述行程限位装 置包括限位螺杆， 行程螺母及限位螺母， 所述限位螺杆一端与所述的 芯轴尾部连接。
作为本发明优选实施例， 所述芯轴头部开槽， 制头座与链轮的配 合面中心处设有一凸起， 所述凸起插入芯轴头部的槽位，从而使芯轴 与制头座固定联接。
作为本发明优选实施例， 所述行星轮减速装置包括： 行星轮减速 装置主体， 其内壁圆周设有与行星轮系啮合的内齿， 其远离制尾的一 面与链轮配合， 之后与制头座固定联接，使得链轮位于行星轮减速装 置主体与制头座中间； 中心齿轮， 其作为行星轮系的太阳轮并与行星 轮减速装置主体同轴， 在靠近转臂的一侧设有一扇形突起， 该扇形突 起卡在扭簧自锁装置锁紧区域中； 行星轮支架， 其套在中心齿轮的外 围并与之同轴的； 行星轮， 其安装在所述行星轮支架上， 并同时与行 星轮减速装置主体内壁圆周齿槽和中心齿轮啮合。
作为本发明优选实施例， 所述的行星轮数量为四个 （或其他数 量） ， 均布在行星轮支架上。
作为本发明优选实施例， 所述的行星轮减速装置配有行星轮端 盖，所述行星轮端盖安装到行星轮支架上并压住行星轮的转轴将其固 定。
作为本发明优选实施例，所述的行星轮减速装置的减速比为 1： 4 , 也可能为其他比例。
作为本发明优选实施例， 所述的扭簧自锁装置包括： 扭簧座； 制 头扭簧， 其套在扭簧座中， 扭簧簧身头尾向心内折形成支臂， 将扭簧 自锁的内部分割成扇形的锁紧区域和与之互补的解锁区域，所述行星 轮减速装置中的太阳轮的突起穿过扭簧座卡在所述的锁紧区域中，所 述转臂的后伸出臂插入到所述解锁区域中转动。
作为本发明优选实施例， 所述的链轮和转臂之间、所述的制头管 套和要与之配合的行程限位装置之间的环形空隙分别安装有前滚珠 轴承和后滚珠轴承。
作为本发明优选实施例，所述的前滚珠轴承和后滚珠轴承均为深 沟球轴 7|。
进一步作为优选的实施方式，与芯轴联接的外设的限位螺杆为右 (也可为左）旋螺纹。
本发明的有益效果是：
1.本发明手动拉珠卷帘制头将传统的行星轮减速装置与扭簧自 锁装置的位置互换， 即将扭簧自锁装置前内置于行星轮减速装置中， 使得卷帘面料及其挂件的自重产生的力先通过行星轮减速装置，再传 递到扭簧自锁装置，这样作用在扭簧上的力的大小就是所述自重乘以 减速比， 极大减轻了扭簧的预紧力， 减少了系统阻力。 本手动拉珠卷 帘制头承载重量大， 安装到卷帘后使得操作卷帘时升降平稳， 省力， 广泛用于各种手动拉珠卷帘、 尤其是重载的装配体中；
2. 本发明在需要顶装时， 只需拧开行星轮减速装置与制头座体 的固定螺釘， 将拉珠导向装置固定在制头座体的凹槽 A或凹槽 B; 需 要侧装时， 只需拧开行星轮减速装置与制头座体的固定螺釘， 将所述 拉珠导向装置固定在制头座体的凹槽 C或凹槽 D , 因此， 本发明根据 安装位置的需要， 只要进行筒单的操作即可实现带罩卷帘系统的侧 装、 顶装、 左装、 右装的功能， 从而满足不同场合的需要， 达到提高 了卷帘制头的应用范围；
3. 本发明的还包括由限位螺杆和套在其杆身上并与其螺纹联接 的行程螺母和限位螺母组成的行程限位装置，行程螺母周围设有与槽 管内壁卡接的伸出端， 使得行程螺母与槽管同步转动， 同时行程螺母 位于限位螺母与限位螺杆杆头之间， 并只能在这段范围内运动， 这样 便限制了槽管转动的圈数， 间接控制了卷帘的升降行程， 实现上下限 位。
附图说明
下面结合附图对本发明作进一步的详细说明。
图 1 是本发明的整体大装配爆炸图和其与行程限位装置的装配 示意图；
图 2是本发明中的行星轮减速装置爆炸图；
图 3是本发明中的扭簧自锁装置爆炸图；
图 4是本发明中的结构爆炸详图；
图 5是本发明的半剖示意图；
图 6是本发明中的芯轴轴测图
图 7是本发明中的拉珠导向装置固定制头座体位置 A;
图 8是本发明中的拉珠导向装置固定制头座体位置 B;
图 9是本发明中的拉珠导向装置固定制头座体位置 C;
图 10是本发明中的拉珠导向装置固定制头座体位置 D; 具体实施方式
参照图 1一图 9 , 一种前内置自锁扭簧的行星齿轮减速的重载拉 珠卷帘制头， 包括：
制头座 1 , 芯轴 2 , 链轮 3 , 转臂 4, 扭簧自锁装置 5 , 行星轮减 速装置 6和行程限位装置 10组成。
制头座 1包括制头座体 1-1 , 拉珠导向装置 1-2和安装码 1-3 , 制头座体 1-1是矩形， 制头座体 1-1一边通过安装码 1-3用于固定， 其另外三边开有固定拉珠导向装置 1-2的凹槽（A、 B、 C、 D )。 在需 要顶装时， 只需拧开行星轮减速装置 6与制头座体 1-1的固定螺釘， 将拉珠导向装置 1-2固定在制头座体 1-1的凹槽 A (如图 7所示）或凹 槽 B (如图 8所示）； 需要侧装时， 只需拧开行星轮减速装置 6与制头 座体 1-1的固定螺釘，将所述拉珠导向装置 1-2固定在制头座体的凹 槽 C (如图 9所示）或凹槽 D (如图 10所示）， 因此， 本发明根据安装位 置的需要，只要进行筒单的操作即只需拧开行星轮减速装置 6与制头 座体 1-1的固定螺釘就可实现制头的侧装或顶装的功能，从而满足不 同场合的需要， 达到提高了卷帘制头的应用范围；
链轮 3 , 其设置在所述制头座 1靠近制尾的侧面， 并且中心位置 设有 EJ槽， 所述 EJ槽中心开孔；
转臂 4, 所述转臂 4沿其中心线向两端设置有前伸出臂与后伸出 臂， 所述前伸出臂插入链轮 3中与之联接并可随链轮 3同步转动； 扭簧自锁装置 5 , 其套在所述转臂 4外围， 并且内腔分割为一锁 紧区域和与之互补的解锁区域，所述转臂 4的后伸出臂插入到所述解 锁区域中转动；
行星轮减速装置 6, 其套在所述扭簧自锁装置 5外围并以靠近制 头座 1的一端为前端，使扭簧自锁装置 5内置于其中并位于所述前端， 且其定外齿圈与制头座 1固定联接，位于其中心的作为行星轮系中的 太阳轮设有突起， 该突起卡在扭簧自锁装置 5锁紧区域域中； 行星轮 减速装置 6进步一步包括： 行星轮减速装置主体 61 , 其内壁圆周开 有作为行星轮系的定外齿圈的齿槽， 其远离制尾的一面与链轮 3 配 合，之后与制头座 1中的制头座体 1-1通过螺釘固定联接，使得链轮 3位于行星轮减速装置主体 61与制头座 1中间； 中心齿轮 62 , 其作 为行星轮系的太阳轮并与行星轮减速装置主体 61 同轴， 在靠近转臂
4的一侧设有一扇形突起， 该扇形突起卡在扭簧自锁装置 5锁紧区域 域中； 行星轮支架 64, 其套在中心齿轮 62的外围并与之同轴的； 行 星轮 63 , 其安装在所述行星轮支架 64上， 并同时与行星轮减速装置 主体 61内壁圆周齿槽和中心齿轮 62啮合， 所述的行星轮 63数量可 以为四个， 均布在行星轮支架 64上， 所述的行星轮减速装置 6的减 速比为 1 : 4 , 所述的行星轮减速装置 6还可配有行星轮端盖 65 , 所述 行星轮端盖 65安装到行星轮支架 14上并压住行星轮 63的转轴将其 固定。
芯轴 2 , 其设置于中轴处， 芯轴 2头部开槽， 制头座 1与链轮 3 的配合面中心处设有一凸起， 所述凸起插入芯轴 2头部的槽位，从而 使芯轴 2与制头座 1固定联接， 同时该头部卡在链轮 3的凹槽处， 其 尾部穿过所述凹槽的中心孔后贯穿转臂 4、 扭簧自锁装置 5和行星轮 减速装置 6;
行程限位装置 10限位螺杆 10-1与芯轴 2另一端连接，所述限位 螺杆 10为右 （或左）旋螺纹； 行程限位装置还包括套在其杆身上并 与其螺纹联接的行程螺母 10-2和限位螺母 10-3 , 行程螺母 10-2周 围设有与槽管（图中未示）内壁卡接的伸出端， 使得行程螺母 10-2与 槽管同步转动， 同时行程螺母 10-2位于限位螺母 10-3与限位螺杆 10-1 杆头之间， 并只能在这段范围内运动， 这样便限制了槽管转动 的圈数， 间接控制了卷帘的升降行程， 并且防止槽管过度旋转导致反 转； 制头管套 7 , 其套在所述行星轮减速装置 6的外围并与行星轮减 速装置 6输出端卡接。
参照图 3〜图 5 , 进一步作为优选的实施方式， 所述的扭簧自锁 装置 5包括： 扭簧座 52; 制头扭簧 51 , 其套在扭簧座 52中， 扭簧簧 身头尾向心内折，将扭簧自锁装置 5的内腔分割成扇形的锁紧区域和 与之互补的解锁区域，所述行星轮减速装置 6中的太阳轮的突起穿过 扭簧座 52卡在所述的锁紧区域中， 所述转臂 4的后伸出臂插入到所 述解锁区域中转动。 工作时， 制头管套 7的外面套有用来挂帘布的槽 管，来自槽管的转矩通过制头管套 7传递到行星轮减速装置 6的输出 端， 即中心齿轮 62 , 而中心齿轮 62的扇形突起卡在制头扭簧 51的 扇形锁紧区域内， 制头扭簧 51对输入转矩产生相应的反作用扭矩并 且与其抵消， 实现自锁； 当来自链轮 3的转矩通过转臂 4直接拨动中 心齿轮 62时， 制头扭簧 51不会对输入转矩产生反作用的阻挡，从而 顺利转动槽管； 本发明手动拉珠卷帘制头将传统的行星轮减速装置 6 与扭簧自锁装置 5的位置互换，即将扭簧自锁装置 5前内置于行星轮 减速装置 6中，使得卷帘面料及其挂件的自重产生的力先通过行星轮 减速装置 6 ,再传递到扭簧自锁装置 5 , 这样作用在制头扭簧 16上的 力的大小就是所述自重乘以减速比， 极大减轻了制头扭簧 51的预紧 力， 节省了制作、 布置高强度制头扭簧 51的成本， 因此， 本发明手 动拉珠卷帘制头能够承载重量大，安装到卷帘后使得操作卷帘时升降 平稳， 省时省力， 广泛用于各种尤其是载重量大手动拉珠卷帘的装配 体中。
参照图 4〜图 5 , 进一步作为优选的实施方式， 所述的链轮 3与 转臂 4之间、所述的制头管套 7和要与之配合的行程限位装置之间的 环形空隙分别安装有前滚动轴承 8和后滚动轴承 9; 所述的前滚动轴 承 8和后滚动轴承 9均为深沟球轴承；所述的两组轴承起到稳定结构 和减少构件转动磨损的作用
以上所揭露的仅为本发明的较佳实施例而已，并非对本发明做任 何形式上的限制， 虽然本发明以较佳实施例揭露如上， 然而并非限定 本发明，任何熟悉本专业的技术人员在不脱离本发明的技术方案的范 围内，当可利用上述所揭示的技术内容作出少许改动或修饰为等同变 化的等效实施例， 依本发明申请专利范围所作的等同变化，仍属本发 明所涵盖的范围。

Claims

1.一种前内置自锁扭簧的行星齿轮减速的重载拉珠卷帘制头，其 特征在于： 包括：
制头座（ 1 ) ；
链轮（3) , 其设置在所述制头座（1 ) 靠近制尾的侧面， 并且 中心位置设有 EJ槽， 所述 EJ槽中心开有通孔；
转臂（4) , 所述转臂（4)沿其中心线向两端设置有前伸出臂与 后伸出臂， 所述前伸出臂插入链轮（3)中与之联接并随所述链轮（3) 同步转动；
扭簧自锁装置（5) , 其套在所述转臂（4)外围， 并且其两个支 臂组成锁紧区域和解锁区域， 所述转臂（4) 的侧壁凸起部分插入到 所述解锁区域中转动；
行星轮减速装置（6) , 其套在所述扭簧自锁装置（5)外侧并靠 近制头座（1 )的一端为前端， 使扭簧自锁装置（5) 内置于其中并位 于所述前端， 且其定外齿圈与制头座（ 1 ) 固定联接， 位于其中心的 作为行星轮系中的太阳轮设有突起， 该突起卡在扭簧自锁装置（5) 的锁紧区域中；
芯轴（2) , 其设置于中轴处， 并且头部与制头座（1 )固定联接， 同时该头部卡在所述链轮（3)的凹槽处并与所述链轮（3)同步转动， 其尾部穿过所述凹槽的中心通孔后贯穿转臂（4)、扭簧自锁装置（5) 和行星轮减速装置（ 6 ) 。
制头管套（7) , 其套在所述行星轮减速装置（6)的外围并与行 星轮减速装置（6)输出端卡接。
2. 根据权利要求 1所述的前内置自锁扭簧的行星齿轮减速的重 载拉珠卷帘制头，其特征在于：所述的制头座（ 1 )包括制头座体（1-1) , 拉珠导向装置 （1-2 )和安装码（1-3 ) , 制头座体（1-1)是矩形， 制 头座体（1-1)一边通过螺釘与安装码（ 1-3 )连接，用于制头安装固定， 其另外三边开有固定拉珠导向装置 （1-2 ) 的凹槽 （A、 B、 C、 D ) , 根据需要， 所述拉珠导向装置（ 1-2 )可固定在制头座体（1-1)的凹槽 Α或凹槽 B或凹槽 C或凹槽 D处。
3. 根据权利要求 2所述的前内置自锁扭簧的行星齿轮减速的重 载拉珠卷帘制头，其特征在于：行星轮减速装置（ 6 )与制头座体（ 1-1 ) 通过螺釘固定连接的， 需要顶装时， 只需拧开行星轮减速装置（6 ) 与制头座体（ 1-1 )的固定螺釘， 将所述拉珠导向装置（ 1-2 )调整到 制头座体（ 1-1 ) 的凹槽 A或凹槽 B; 需要侧装时， 只需拧开行星轮 减速装置（6 )与制头座体（ 1-1 )的固定螺釘， 将所述拉珠导向装置
( 1-2 )调整到制头座体（ 1-1 ) 的凹槽 C或凹槽 D。
4.根据权利要求 3 所述的前内置自锁扭簧的行星齿轮减速的重 载拉珠卷帘制头， 其特征在于： 还包括行程限位装置（10 ) , 所述行 程限位装置（ 10 ) 包括限位螺杆（ 10-1 ) , 行程螺母（ 10_2 )及限位 螺母（ 10-3 ) , 所述限位螺杆（ 10-1 )一端与所述的芯轴 （ 2 )尾部 连接。
5.根据根据权利要求 4 所述的前内置自锁扭簧的行星齿轮减速 的重载拉珠卷帘制头， 其特征在于： 所述行星轮减速装置（ 6 )包括： 行星轮减速装置主体（ 61 ) ,其内壁圆周有与行星轮啮合的内齿，
2 其远离制尾的一面与链轮（3) 配合， 之后与制头座（1) 固定联接， 使得链轮 ( 3 )位于行星轮减速装置主体（ 61 )与制头座（ 1 ) 中间； 中心齿轮（62) , 其作为行星轮系的太阳轮并与行星轮减速装置 主体（61) 同轴， 在靠近转臂（4) 的一侧设有一扇形突起， 该扇形 突起卡在扭簧自锁装置 （5)锁紧区域中；
行星轮支架（64) , 其套在中心齿轮（62)的外围并与之同轴的； 行星轮（63) , 其安装在所述行星轮支架（64)上， 并同时与行 星轮减速装置主体（61 ) 内齿和中心齿轮（62)啮合；
所述的扭簧自锁装置（5) 包括：
扭簧座（ 52 ) ；
制头扭簧（51) , 其套在扭簧座（52) 中， 扭簧簧身头尾向心内 折形成支臂， 将扭簧自锁装置（5)的内部分割锁紧区域和解锁区域， 所述行星轮减速装置 （6) 中的太阳轮的突起穿过扭簧座（52)卡在 所述的锁紧区域中， 所述转臂（4) 的后伸出臂插入到所述解锁区域 中转动。
6.根据权利要求 4 所述的前内置自锁扭簧的行星齿轮减速的重 载拉珠卷帘制头， 其特征在于： 所述芯轴（2)头部开槽， 制头座（1) 与链轮 (3)的配合面中心处设有一凸起， 所述凸起插入芯轴（2)头 部的槽位， 从而使芯轴 （2)与制头座（1) 固定联接。
7.根据权利要求 4 所述的前内置自锁扭簧的行星齿轮减速的重 载拉珠卷帘制头， 其特征在于： 所述的行星轮（63)数量为四个， 均 布在行星轮支架（64)上。
3
8.根据权利要求 1 所述的前内置自锁扭簧的行星齿轮减速的重 载拉珠卷帘制头， 其特征在于： 所述的行星轮减速装置（6) 配有行 星轮端盖（ 65 ) , 所述行星轮端盖（ 65 )安装到行星轮支架（ 14 )上 并压住行星轮（63) 的转轴将其固定。
9.根据权利要求 1 所述的前内置自锁扭簧的行星齿轮减速的重 载拉珠卷帘制头， 其特征在于： 所述的行星轮减速装置（6) 的减速 比为 1:4。
10.根据权利要求 1 所述的前内置自锁扭簧的行星齿轮减速的 重载拉珠卷帘制头， 其特征在于： 所述的链轮（3)和转臂（4)之间、 所述的制头管套（7)和要与之配合的行程限位装置之间的环形空隙 分别安装有前滚珠轴承（8)和后滚珠轴承（9) 。
4
PCT/CN2011/076923 2010-08-06 2011-07-06 一种拉珠卷帘制头 WO2012016486A1 (zh)

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