WO2013143258A1 - 可调扭力螺丝批 - Google Patents

可调扭力螺丝批 Download PDF

Info

Publication number
WO2013143258A1
WO2013143258A1 PCT/CN2012/080945 CN2012080945W WO2013143258A1 WO 2013143258 A1 WO2013143258 A1 WO 2013143258A1 CN 2012080945 W CN2012080945 W CN 2012080945W WO 2013143258 A1 WO2013143258 A1 WO 2013143258A1
Authority
WO
WIPO (PCT)
Prior art keywords
ratchet
screwdriver
torque
spring
pair
Prior art date
Application number
PCT/CN2012/080945
Other languages
English (en)
French (fr)
Inventor
余闻天
Original Assignee
杭州巨星工具有限公司
杭州巨星科技股份有限公司
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 杭州巨星工具有限公司, 杭州巨星科技股份有限公司 filed Critical 杭州巨星工具有限公司
Priority to US13/634,162 priority Critical patent/US9421675B2/en
Publication of WO2013143258A1 publication Critical patent/WO2013143258A1/zh

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
    • B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
    • B25B23/1427—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00—Screwdrivers
    • B25B15/02—Screwdrivers operated by rotating the handle
    • B25B15/04—Screwdrivers operated by rotating the handle with ratchet action
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/141—Mechanical overload release couplings

Definitions

  • the invention relates to an adjustable torque screwdriver, belonging to the field of hand tools.
  • the torque of the ordinary screwdriver output is basically unadjustable, and the torque applied to the screwdriver can only be controlled by the user's experience, so that when the torque is precisely controlled, such as between the components of the precision instrument Connections, or fasteners and / Or when the fastened parts are brittle or easily damaged, if the force is too strong and the applied torque is too large, the parts may be damaged.
  • the screwdriver will be used. Users have certain requirements, such as skilled craftsmen.
  • the present invention provides an adjustable torque screwdriver capable of adjusting the torque output of the screwdriver according to the needs of the user, and the screwdriver can adjust the torque of the output thereof in multiple stages.
  • the torque output shaft of the screwdriver is slipped, thereby cutting off the output of the torque.
  • the technical problem to be solved by the present invention is to provide an adjustable torque screwdriver.
  • the present invention provides a An adjustable torque screwdriver, comprising a torque input assembly and a torque output assembly, further comprising a ratchet pair having annular ratchets respectively a first ratchet and a second ratchet, the torque input assembly transmits torque to the first ratchet, and the second ratchet transmits torque to the torque output assembly.
  • the annular ratchet is configured such that the ratchet pair can slip in a clockwise or counterclockwise direction, while slipping does not occur in the opposite direction, and includes an elastic assembly and an adjustment assembly that applies pressure to the ratchet pair
  • the ratchet pair is closely fitted, and the adjusting component loads and unloads the elastic component, thereby adjusting the magnitude of the pressure and the tightness of the ratchet pair to each other, thereby adjusting the torque of the ratchet pair when the slip occurs.
  • the resilient component is a spring set that includes a plurality of substantially concentrically disposed springs each having a different free height and modulus of elasticity.
  • the spring set includes a first spring and a second spring, the free height of the first spring being greater than the free height of the second spring, and the second spring having a modulus of elasticity greater than the modulus of elasticity of the first spring.
  • the adjusting component is an outer casing with an internal thread and an inner ring body with an external thread, and the inner ring body is fitted in the outer casing by the thread pair and cannot rotate around the axis of the screwdriver, when the outer casing is opposite to the axis of the screwdriver When the ring body rotates, the inner ring body is translated relative to the elastic component under the action of the thread pair, thereby loading or unloading the elastic component.
  • a flange that rotates with the outer casing.
  • the flange is provided with a plurality of circular grooves, and a ball that cooperates with the circular groove and a gear spring that elastically biases the ball.
  • the outer casing is located on the head of the adjustable torque screwdriver, and the ratchet pair and the resilient assembly are located within the outer casing.
  • the resilient member is located adjacent one side of the first ratchet.
  • the outer casing is rotatably coupled to the handle of the adjustable torque screwdriver about the axis of the screwdriver.
  • the cavity in the handle holds a variety of spare screwdriver bits that can be mounted on the screwdriver.
  • the handle has a tail cap.
  • a gear mark is provided on the outer casing, and an indicator arrow is provided on the handle.
  • the adjustable torque screwdriver can set the maximum output torque in the set direction, so that the torque of the output is more accurate. When the torque exceeds the set gear, the output shaft automatically slips. In order to avoid damage to the fasteners, the parts to be fastened, and the bits of the screwdriver, it is not necessary to require a specific user because it does not depend on the user's operating experience.
  • the spring set of the multi-stage spring of the present invention is used to adjust the maximum output torque of the screwdriver, so that the torque setting range is wider, especially in the low torque region, and the setting is more accurate, and It has a longer service life than a single spring.
  • the center of gravity of the screwdriver is closer to the output shaft of the screwdriver, which makes the screwdriver work more stable and when slippage occurs.
  • the vibration generated by the bit is smaller.
  • Figure 1 is a front elevational view of an adjustable torque screwdriver of a preferred embodiment of the present invention
  • Figure 2 is a cross-sectional view of an adjustable torque screwdriver of a preferred embodiment of the present invention
  • Figure 3 is an exploded perspective view of an adjustable torque screwdriver of a preferred embodiment of the present invention.
  • Figure 4 is a perspective view of a hex sleeve of an adjustable torque screwdriver of a preferred embodiment of the present invention
  • Figure 5 is a perspective view of a hex drive rod of an adjustable torque screwdriver of a preferred embodiment of the present invention
  • Figure 6 is a perspective view of a ratchet pair of an adjustable torque screwdriver of a preferred embodiment of the present invention.
  • Figure 7 is a perspective view of the outer casing of the adjustable torque screwdriver of a preferred embodiment of the present invention.
  • Figures 8(a) and 8(b) are perspective views of the inner ring body of the adjustable torque screwdriver of a preferred embodiment of the present invention.
  • FIG. 1 shows an adjustable torque screwdriver 100 having a torque input assembly, a torque output assembly and a torque control assembly in accordance with a preferred embodiment of the present invention, and the primary object of the present invention is to input the user through torque
  • the torque input to the component is output through the torque output assembly through the torque output assembly to control the maximum output torque of the screwdriver 100 in a single direction (usually the clockwise direction of the tightening screw).
  • the torque input assembly includes a handle 2 having a cavity 19 therein with a tail cap 1 at one end.
  • the first end of the handle 2 is provided with a first hexagonal hole 20 and an axially extending periphery 21, wherein the bottom of the first hexagonal hole 20 of the handle 2 is further provided with a first connecting hole communicating with the cavity 19. twenty two.
  • the torque input assembly further includes a hexagonal sleeve 4 as shown in FIG. 4.
  • the structure of the hexagonal sleeve 4 includes an outer hexagonal column 23, a second hexagonal hole 24, and a flange 25, wherein the second hexagonal hole The bottom of the hole of the 24 is provided with a second connecting hole 26.
  • the torque input assembly further includes a hexagonal transmission rod 5 as shown in FIG. 5.
  • the hexagonal transmission rod 5 has a hexagonal outer contour, and has a third connection hole 27 at one end thereof and an internal thread formed in the third connection hole. .
  • the outer hexagonal post 23 of the hexagonal sleeve 4 is inserted into the first hexagonal hole 20 fitted on the handle 2, and the hexagonal transmission rod 5 is provided with one end of the third connecting hole 27 and inserted into the second hexagonal hexagon of the hexagonal sleeve 4.
  • the screw 3 is screwed into the first, second and third connecting holes from the cavity 19 of the handle 2.
  • the torque control assembly includes a ratchet pair 14, see FIGS. 3 and 6, the ratchet pair 14 includes a first ratchet 28 and a second ratchet. 29, wherein the first ratchet 28 and the second ratchet 29 have annular ratchets 30, 31 on opposite end faces, respectively, and the annular ratchet 30 on the first ratchet 28 and the annular spine on the second ratchet 29
  • the teeth 31 cooperate with each other such that the first ratchet 28 and the second ratchet 29 can overcome a certain axial force under the input torque, and slip in a predetermined clockwise or counterclockwise direction, and in the opposite direction.
  • the ratchet wheels 28, 29 are respectively provided with hexagonal through holes 34, 35 in the axial direction, wherein the hexagonal transmission rod 5 is inserted into the first hexagonal hexagonal through hole 34, thereby inputting a torque to the ratchet 28.
  • the axial force applied between the ratchets 28, 29 can generally be provided by a resilient assembly against the side of the one of the ratchets 28, 29 opposite the side on which the ratchet is located, the pressure exerted by the resilient assembly on the ratchet pair 14.
  • the elastic component can be a single spring, or a set of springs configured according to different free heights and elastic moduli, as shown in Figures 2 and 3, in this embodiment
  • the elastic component is a spring 11 , 12 that is substantially concentrically sleeved on the hex drive rod 5 , wherein the free height H 0 of the first spring 11 is greater than the free height H 0 ′ of the second spring 12 , and the second spring 12
  • the elastic modulus E 1 is greater than the elastic modulus E 2 of the second spring 11, and one end of at least one of the springs 11, 12 abuts against the side of the ratchet 28, so that the ratchet 28 is axially subjected to its elastic force,
  • the ratchet wheel 29 is in close engagement with each other, so that the torque in the clockwise direction of the input to the ratchets 28, 29 is overcome by the spring force of the spring to cause the ratchets 28, 29 to slip, and the spring
  • the torsion control assembly further includes an adjustment assembly.
  • the main function of the adjustment assembly is to adjust the amount of deformation of the springs 11, 12, as shown in FIG. 2, including a flange 8 disposed between the handle 2 and the hex sleeve 4,
  • the blue disk 8 is connected to the outer casing 13 by a plurality of small screws 9 located on its flange.
  • the outer casing 13 is also the head casing of the screwdriver 100, and one end of the opening is rotatably sleeved in the periphery 21 of the handle 2, as shown in FIG. 7, the inside of the casing 13 is provided inside.
  • the threads 40, the ratchets 28, 29 and the springs 11, 12 are all located in the outer casing 13.
  • the torque setting assembly further includes an inner ring body 10 threadedly fitted into the outer casing 12 as shown in FIG. 8.
  • the outer side surface of the inner ring body 10 is provided with an external thread 41 that cooperates with the internal thread 40 of the outer casing 12, and the inside Also provided is a third hexagonal through hole 32 and a recess 33 in the axial direction through which the hexagonal transfer rod 5 passes, see FIGS. 8(a) and (b), one end of the springs 11, 12 abutting against the first ratchet On the side of 28, the other end abuts against the recess 33 in the inner ring body 10.
  • the inner ring 10 cannot be wound around the axis of the screwdriver 100 because its third hexagonal through hole 32 is restrained by the hexagonal transmission rod 5 in the circumferential direction.
  • Rotating, therefore, can only be translated along the hex drive rod 5 under the action of the thread pair, deforming the springs 11, 12, thereby changing the axial force exerted on the ratchet 28, and due to the free height H of the first spring 11 0 is greater than the free height H 0 ' of the second spring 12, so that the first spring 11 is first subjected to compression deformation in the initial stage, at which time the ratchet 28 is only subjected to the pressure applied by the spring 11, and when the spring 11 reaches a certain amount of deformation, ring 10 will continue translation of the second spring 12 also begins compressive deformation, when subjected to the ratchet wheel 28 while the elastic force of the spring 11, and the elastic modulus of the second spring 12 is greater than the second spring 11 E 1
  • the elastic modulus E 2 is such that the increase in the elastic force of the ratchet 28 is increased at this time.
  • the configuration of the two-stage spring as in the present embodiment allows the setting range of the torsion force, in particular, the setting range of the small torque region to be wider, and on the other hand, the larger elastic modulus E 2 can be extended.
  • the spring set can further include a plurality of springs having different free heights and elastic moduli to form a multi-stage configuration.
  • a gear spring 6 and a ball 7 are disposed on the handle 2, and correspondingly, a plurality of circular grooves 36 are further provided on the flange 8, when the outer casing 13 is rotated, The blue disk 8 rotates accordingly, so that the ball 7 which is subjected to the elastic biasing force of the gear spring 6 sequentially falls into the circular groove 36 on the flange 8, and is also provided on the outer casing 13 as shown in the figure.
  • the torsion output assembly includes a torsion output shaft 18 having a hexagonal profile at one end that can be inserted into a second hexagonal through hole 35 that fits within the second ratchet 29, and further, as shown, on the end face of the end A blind hole is opened, and correspondingly, a boss is extended on an end surface of one end of the hexagonal transmission rod 5 inserted into the first hexagonal hole 34 of the first ratchet 28, and the boss is coupled in the blind hole during assembly.
  • the other end of the torsion output shaft extends from the opening 37 of the outer casing 13 through the sleeve 17 and the flat washer 16, and the shaft retaining ring 15, and the end surface of the other end is provided with mounting holes for mounting various batch heads.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

一种可调扭力螺丝批（100），包括扭力输入组件和扭力输出组件，还包括棘轮对（14），棘轮对由分别具有环状棘齿（30，31）的第一棘轮（28）和第二棘轮（29）组成，扭力输入组件将扭力传递至第一棘轮，第二棘轮将扭力传递至扭力输出组件，环状棘齿被设置成使棘轮对可在顺时针或逆时针方向上发生打滑，而在相反方向上不能打滑，还包括弹性组件和调节组件，弹性组件向棘轮对施加压力，调节组件对弹性组件进行加载和卸载，从而调节压力大小以及棘轮对相互贴合的紧密程度，进而调整棘轮对发生打滑时扭力的大小。因此，本申请提供了一种扭矩可调的螺丝批。

Description

可调扭力螺丝批
技术领域
本发明涉及一种可调扭力螺丝批，属于手动工具的领域。
背景技术
普通螺丝批输出的扭力基本都是不可调整的，只能依靠使用者的经验对其施加在螺丝批上的扭力进行控制，这样当需要对扭力进行精确控制时，如精密仪器的各部件之间的连接，或者紧固件和 / 或被紧固的部件本身是脆性的或者易受损的时，用力过猛、施加的扭力过大的话可能会损伤这些部件，此时因为只能完全依靠操作者的经验，所以会对螺丝批的使用者有一定的要求，如必须是熟练的技工等。
有鉴于普通螺丝批的上述局限性，本发明提供了一种可根据使用者需要调节螺丝批输出扭力的大小的可调扭力螺丝批，该螺丝批可对其输出的扭力进行多级调节，当使用者施加的扭力大于设定的扭力时，螺丝批的扭力输出轴即发生打滑，从而切断了扭力的输出。
发明内容
有鉴于现有技术的上述缺陷，本发明所要解决的技术问题是提供 一种可调扭力的螺丝批。
为实现上述目的，本发明提供了一种 可调扭力螺丝批，包括扭力输入组件和扭力输出组件，还包括棘轮对，该棘轮对由分别 具有环状棘齿的 第一棘轮和第二棘轮组成，该扭力输入组件将扭力传递至第一棘轮，该第二棘轮则将扭力传递至扭力输出组件， 环状棘齿则被设置为使该棘轮对可在顺时针或逆时针方向上发生打滑，而在相反方向上则不能发生打滑，还包括弹性组件和调节组件，该弹性组件向棘轮对施加压力，使得该棘轮对紧密贴合，调节组件对弹性组件进行加载和卸载，从而调整压力的大小以及棘轮对互相贴合的紧密程度，进而调整棘轮对发生打滑时扭力的大小。
在本发明的较佳实施方式中 ， 弹性组件为弹簧组，该弹簧组包括多个大致同心地设置的弹簧，弹簧各自具有不同的自由高和弹性模量。
在本发明的进一步的较佳实施方式中， 弹簧组包括第一弹簧和第二弹簧，第一弹簧的自由高大于第二弹簧的自由高，而第二弹簧的弹性模量大于第一弹簧的弹性模量。
在本发明的另一较佳实施方式中， 调节组件为带有内螺纹的外罩壳和带有外螺纹的内圈体，内圈体通过螺纹副配合在外罩壳内且不可绕螺丝批的轴线转动，当外罩壳绕螺丝批的轴线相对内圈体转动时，内圈体在螺纹副的作用下相对弹性组件平动，从而对弹性组件进行加载或卸载。
在本发明的另一的较佳实施方式中， 还包括随外罩壳一同转动的法兰盘，法兰盘上设置有多个圆形凹槽，以及与圆形凹槽相配合的圆珠和对圆珠进行弹性偏置的档位弹簧。
在本发明的另一的较佳实施方式中， 外罩壳位于可调扭力螺丝批的头部，棘轮对和弹性组件位于外罩壳之内。
在本发明的另一的较佳实施方式中， 弹性组件位于邻近第一棘轮的一侧。
在本发明的另一的较佳实施方式中， 外罩壳可绕螺丝批的轴线转动地连接在可调扭力螺丝批的手柄上。
在本发明的另一的较佳实施方式中， 手柄中具有空腔。手柄中的空腔可存放备用的各种可安装在该螺丝批上的螺丝批头。
在本发明的另一的较佳实施方式中， 手柄带有尾盖。
在本发明的另一的较佳实施方式中， 在外罩壳上设置有档位标记，在手柄上设置有指示箭头。
根据本发明的可调扭力螺丝批可对其在设定方向的上的最大输出扭力进行设定，从而使其输出的扭力更为精确，当扭力超出设定档位时，则输出轴自动打滑，避免对紧固件、需紧固的部件以及螺丝批的批头等造成损伤，由于不依赖使用者的操作经验，因此无需要求特定的使用者。
进一步地，本发明的采用了多级弹簧组成的弹簧组来对螺丝批的最大输出扭力进行调节，可使得扭力设定范围更宽，尤其是在低扭力区域的设定会更为精确，且比单个弹簧具有更长的使用寿命。
此外，由于将棘轮对、弹性部均设置在螺丝批的头部罩壳内，因此螺丝批的重心更靠近螺丝批的输出轴，这样可以使螺丝批工作时更为稳定，且当发生打滑时批头产生的振动更小。
以下将结合附图对本发明的构思、具体结构及产生的技术效果作进一步说明，以充分地了解本发明的目的、特征和效果。
附图说明
图1是本发明的一个优选实施例的可调扭力螺丝批的正视图；
图2是本发明的一个优选实施例的可调扭力螺丝批的截视图；
图3是本发明的一个优选实施例的可调扭力螺丝批的分解透视图；
图4是本发明的一个优选实施例的可调扭力螺丝批的六角套的透视图；
图5是本发明的一个优选实施例的可调扭力螺丝批的六角传动杆的透视图；
图6是本发明的一个优选实施例的可调扭力螺丝批的棘轮对的透视图；
图7是本发明的一个优选实施例的可调扭力螺丝批的外罩壳的透视图；
图8（a）和图8（b）是本发明的一个优选实施例的可调扭力螺丝批的内圈体的透视图。
具体实施方式
图1示出了根据本发明的一个优选实施例的可调扭力螺丝批100，螺丝批100具有扭力输入组件、扭力输出组件和扭力控制组件，而本发明的主要目的是将使用者通过扭力输入组件输入的扭力经过扭力控制组件后通过扭力输出组件输出，以实现对该螺丝批100在单个方向（通常是拧紧螺丝的顺时针方向）上的最大输出扭力进行控制。
在如图1-3所示，扭力输入组件包括手柄2，手柄2内设有空腔19，其一端带有尾盖1。在手柄2的另一端设有第一内六角孔20和轴向延伸的周沿21，其中在手柄2的第一内六角孔20的孔底还开有与空腔19相通的第一连接孔22。扭力输入组件还包括如图4所示的六角套4，如图中所示，六角套4的结构包括有外六角柱23、第二内六角孔24以及凸缘25，其中第二内六角孔24的孔底设有第二连接孔26。扭力输入组件还进一步地包括有如图5所示的六角传动杆5，六角传动杆5具有六角形的外轮廓，在其一端上设有第三连接孔27，第三连接孔内形成有内螺纹。装配时，六角套4的外六角柱23插入配合在手柄2上的第一内六角孔20内，六角传动杆5设有第三连接孔27的一端插入配合在六角套4的第二内六角孔24内，这时第一、第二和第三连接孔22、26和27轴向对齐且孔径相同，螺钉3从手柄2的空腔19中旋入第一、第二和第三连接孔22、26和27中，从而将手柄2、六角套4和六角传动杆5轴向地连接在一起。另外通过手柄2和六角套4之间，六角套4和六角传动杆5之间的这种多棱柱和多棱孔的连接，使用者施加在手柄2上的扭矩可传递至六角套4和六角传动杆5，进而传递至本实施例中的扭力控制组件。
上述只是具体描述一种扭力传递的方式，其目的是在根据本发明的扭力可调螺丝批100中实现扭力的输入，可被本领域的技术人员理解的是，现有技术中存在的其他很多扭力传递的方式也均适用于本发明，本发明无意对此做出限制。
下面进一步对根据本发明的该实施例的扭力控制组件进行说明，如图2所示，扭力控制组件包括棘轮对14，参见图3和图6，棘轮对14包括第一棘轮28和第二棘轮29，其中第一棘轮28和第二棘轮29在彼此相对的端面上分别具有环状棘齿30、31，第一棘轮28上的环状棘齿30可与第二棘轮29上的环状棘齿31相互配合，使得在第一棘轮28和第二棘轮29在输入扭力的作用下可克服一定的轴向受力，在预先设定的顺时针方向或逆时针方向上打滑，而在相反方向上棘轮28、29之间则不能发生打滑，且轴向受力的大小决定了打滑的难度，或者说发生打滑时输入扭力所需的大小。由此可见，通过控制棘轮28、29之间轴向受力的大小，即可控制发生输入扭力的极限，当在设定的方向上输入的扭力超出这一极限时，棘轮28、29之间即发生打滑，从而切断了转动和扭力的输出，通常，包括在本实施例中，棘轮28、29被设定为在旋紧螺丝的顺时针方向上可打滑。另外棘轮28、29轴向上分别开设有内六角通孔34、35，其中六角传动杆5插入配合在第一内六角通孔34中，从而将扭力输入至棘轮28。
棘轮28、29之间轴向受力的大小通常可以通过抵靠在棘轮28、29的其中之一的与其棘齿所在侧面相反的侧面上的弹性组件提供，弹性组件对棘轮对14施加的压力越大，则棘轮对14之间贴合的越紧密，弹性组件可以为单个弹簧，或者根据不同自由高和弹性模量来配置的弹簧组，如图2和图3所示，在本实施例中，该弹性组件为大致同心地套设在六角传动杆5上的弹簧11、12，其中第一弹簧11的自由高H0大于第二弹簧12的自由高H0′,而第二弹簧12的弹性模量E1大于第二弹簧11的弹性模量E2，弹簧11、12的至少其中之一的一端抵靠在棘轮28的侧面，使棘轮28在轴向上受到其弹性力作用，和棘轮29紧密接合，因此输入至棘轮28、29的顺时针方向上扭力需克服该弹簧的弹性力才能使棘轮28、29发生打滑，而弹簧11、12的弹性力与其变形量成正比，因此通过设定弹簧11、12的变形量，即可对棘轮28、29顺时针方向上可输出的最大扭力进行调节控制。
扭力控制组件还包括调节组件，调节组件的主要作用是对弹簧11、12的变形量进行调节，如图2所示，包括在手柄2和六角套4之间套设的法兰盘8，法兰盘8通过位于其凸边上的多个小螺钉9与外罩壳13连接。在本实施例中，外罩壳13也是螺丝批100的头部外罩壳，其开口的一端可转动地套接在手柄2的周沿21内，如图7所示，外罩壳13内侧设有内螺纹40，棘轮28、29和弹簧11、12均位于外罩壳13中。扭力设定组件还包括如图8所示由螺纹配合在外罩壳12内的内圈体10，内圈体10的外侧面上设置有与外罩壳12的内螺纹40配合的外螺纹41，内部还开设有供六角传递杆5穿过的轴向上的第三内六角通孔32和凹台33，见图8（a）和（b），弹簧11、12的一端抵靠在第一棘轮28的侧面上，另一端则抵靠在内圈体10内的凹台33上。当使用者相对手柄2绕螺丝批100的轴线旋转外罩壳13时，内圈10由于其第三内六角通孔32受到六角传动杆5对其在周向上的约束而不能绕螺丝批100的轴线转动，因此只能在螺纹副的作用下，沿六角传动杆5平动，使弹簧11、12变形，从而改变其施加在棘轮28上的轴向力，且由于第一弹簧11的自由高H0大于第二弹簧12的自由高H0′，因此在初始阶段第一弹簧11先受压变形，此时棘轮28仅受到弹簧11施加的压力，而当弹簧11达到一定的变形量后，内圈10的继续平动会使第二弹簧12也开始受压变形，此时棘轮28同时受到弹簧11、12的弹性力作用，且由于第二弹簧12的弹性模量E1大于第二弹簧11的弹性模量E2，因此此时棘轮28所受的弹性力的增速上升。如本实施例中的这种双级弹簧的配置一方面可使扭力的设定范围，尤其是在小扭力区域的设定范围更宽，另一方面也可延长具有较大弹性模量E2的第二弹簧12的使用寿命。可被本领域技术人员理解的是，该弹簧组可以进一步包括多个具有不同自由高和弹性模量的弹簧，从而形成多级配置。
进一步地，如图所示，在手柄2上设置有档位弹簧6和圆珠7，且相应地在法兰盘8上还设置多个圆形凹槽36，当外罩壳13旋转时，法兰盘8随之旋转，于是受到档位弹簧6弹性偏置力作用的圆珠7依次落入法兰盘8上的圆形凹槽36中，另如图所示，在外罩壳13上设有于圆形凹槽36所在位置一一对应的档位标记，在手柄2上则设有指示箭头，这样使用者可以通过转动外罩壳13，将螺丝批100的输出扭力设置在所需档位之上。
扭力输出组件包括扭力输出轴18，扭力输出轴18一端具有六角形轮廓，可插入配合在第二棘轮29内的第二内六角通孔35中，进一步，如图所示，在该端的端面上开设有盲孔，而相应地，在六角传动杆5插入配合第一棘轮28的第一内六角孔34中的一端的端面上延伸有凸台，装配时凸台连接在盲孔中。扭力输出轴另一端通过轴套17和平垫片16、轴用挡圈15自外罩壳13的开口37延伸而出，另一端的端面上开设有安装孔用来安装各种批头。
以上只是具体描述一种扭力传递的方式，其目的是在根据本发明的扭力可调螺丝批100中实现扭力的输出，可被本领域的技术人员理解的是，现有技术中存在的其他很多扭力传递的方式也均适用于本发明，本发明无意对此做出限制。
以上详细描述了本发明的较佳具体实施例。应当理解，本领域的普通技术人员无需创造性劳动就可以根据本发明的构思作出诸多修改和变化。因此，凡本技术领域中技术人员依本发明的构思在现有技术的基础上通过逻辑分析、推理或者有限的实验可以得到的技术方案，皆应在由权利要求书所确定的保护范围内。

Claims (11)

  1. 一种可调扭力螺丝批，包括扭力输入组件和扭力输出组件，其特征在于，还包括棘轮对，所述棘轮对由各自具有环状棘齿的第一棘轮和第二棘轮组成，所述扭力输入组件将扭力传递至所述第一棘轮，所述第二棘轮则将扭力传递至所述扭力输出组件，所述环状棘齿则被设置为可使所述棘轮对在顺时针或逆时针方向上发生打滑，而在其相反方向上则不能发生打滑，还包括弹性组件和调节组件，所述弹性组件向所述棘轮对施加压力，所述调节组件对所述弹性组件进行加载和卸载，从而调整所述压力的大小以及所述棘轮对互相贴合的紧密程度，进而调整使所述棘轮对发生打滑时扭力的大小。
  2. 如权利要求1所述的可调扭力螺丝批，其中所述的弹性组件为弹簧组，所述的弹簧组包括多个大致同心地设置的弹簧，所述弹簧各自具有不同的自由高和弹性模量。
  3. 如权利要求2所述的可调扭力螺丝批，其中所述的弹簧组包括第一弹簧和第二弹簧，所述第一弹簧的自由高大于所述第二弹簧的自由高，而所述第二弹簧的弹性模量大于所述第一弹簧的弹性模量。
  4. 如权利要求1所述的可调扭力螺丝批，其中所述的调节组件为带有内螺纹的外罩壳和带有外螺纹的内圈体，所述内圈体通过螺纹副配合在所述外罩壳内且不可绕所述螺丝批的轴线转动，当所述外罩壳绕所述螺丝批的轴线相对所述内圈体转动时，所述内圈体在螺纹副的作用下相对所述弹性组件平动，从而对所述弹性组件进行加载或卸载。
  5. 如权利要求4所述的可调扭力螺丝批，其中还包括随所述外罩壳一同转动的法兰盘，所述法兰盘上绕其轴线设置有多个圆形凹槽，还配备有与所述圆形凹槽相配合的圆珠和对所述圆珠进行弹性偏置的档位弹簧。
  6. 如权利要求4或5所述的可调扭力螺丝批，其中所述外罩壳位于所述可调扭力螺丝批的头部，所述棘轮对和所述弹性组件位于所述外罩壳之内。
  7. 如权利要求6所述的可调扭力螺丝批，其中所述弹性组件位于邻近所述第一棘轮的一侧。
  8. 如权利要求7所述的可调扭力螺丝批，其中所述外罩壳绕所述螺丝批的轴线可转动地连接在所述可调扭力螺丝批的手柄上。
  9. 如权利要求8所述的可调扭力螺丝批，其中所述手柄中具有空腔。
  10. 如权利要求9所述的可调扭力螺丝批，其中所述手柄带有尾盖。
  11. 如权利要求8所述的可调扭力螺丝批，其中在所述外罩壳上设置有档位标记，在所述手柄上设置有指示箭头。
PCT/CN2012/080945 2012-03-26 2012-09-04 可调扭力螺丝批 WO2013143258A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/634,162 US9421675B2 (en) 2012-03-26 2012-09-04 Adjustable torque screwdriver

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210082515.1 2012-03-26
CN201210082515.1A CN103358265B (zh) 2012-03-26 2012-03-26 可调扭力螺丝批

Publications (1)

Publication Number Publication Date
WO2013143258A1 true WO2013143258A1 (zh) 2013-10-03

Family

ID=49258152

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/080945 WO2013143258A1 (zh) 2012-03-26 2012-09-04 可调扭力螺丝批

Country Status (3)

Country Link
US (1) US9421675B2 (zh)
CN (1) CN103358265B (zh)
WO (1) WO2013143258A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013009358B4 (de) 2013-06-03 2018-03-22 Jin-Tsai Lai Konstruktion zur Einstellung des Drehmoments am Schraubendreher
DE202021102127U1 (de) 2021-04-21 2022-07-22 Hazet-Werk Hermann Zerver Gmbh & Co. Kg Drehmomentwerkzeug

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110314976A1 (en) * 2010-06-24 2011-12-29 Muniswamappa Anjanappa Multiple Slope or Multiple or Multiple Offset Tool Mechanism
US20220250219A1 (en) * 2010-09-20 2022-08-11 Muniswampappa Anjanappa Multiple Slope or Multiple Offset Tool Mechanism
CN203600140U (zh) * 2013-11-01 2014-05-21 中山市奥博包装材料制品有限公司 一种新型可调扭力扳手
CN105710817A (zh) * 2016-04-27 2016-06-29 厦门南旗佰特精密工具制造有限公司 精密电动螺丝刀
CN105773505A (zh) * 2016-04-27 2016-07-20 厦门南旗佰特精密工具制造有限公司 螺丝刀扭力调节装置
CN106597452B (zh) * 2016-12-19 2019-08-16 北京小米移动软件有限公司 手持式工具、调节手柄本体形状的方法及装置
US10730167B2 (en) * 2017-07-19 2020-08-04 Zimmer, Inc. Disposable surgical screwdriver
US11944502B2 (en) 2020-04-10 2024-04-02 Medartis Ag Torque limiting ratcheting handle for medical instrument
US11446798B2 (en) * 2020-11-12 2022-09-20 Yu-Ching Lin Torque tool
DE202021103380U1 (de) 2021-06-23 2022-09-26 Hazet-Werk Hermann Zerver Gmbh & Co. Kg Drehmomentwerkzeug
DE202021103656U1 (de) 2021-07-07 2022-10-13 Hazet-Werk Hermann Zerver Gmbh & Co. Kg Drehmomentwerkzeug
TWI782823B (zh) * 2021-12-16 2022-11-01 特典工具股份有限公司 扭力工具
TWI783835B (zh) * 2021-12-22 2022-11-11 歐玉華 定扭力工具
US20230211476A1 (en) * 2022-01-04 2023-07-06 Yu-Hua Ou Constant torque tool
DE202022100447U1 (de) 2022-01-26 2023-04-27 Hazet-Werk Hermann Zerver Gmbh & Co. Kg Drehmoment-Schraubendreher
CN114789420B (zh) * 2022-05-31 2024-03-26 苏州浪潮智能科技有限公司 一种可调扭矩螺丝刀
CN116000610B (zh) * 2022-12-09 2023-08-15 浙江奉天电子有限公司 一种电源逆变器的半自动化产线装配设备及工艺

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1785601A (zh) * 2004-12-07 2006-06-14 罗伯特·博世有限公司 具有转矩限制单元的手持式工具机
CN101195216A (zh) * 2006-12-08 2008-06-11 罗伯特·博世有限公司 用于手持式工具机的端头附件
CN201082530Y (zh) * 2007-08-06 2008-07-09 腾达工具工业有限公司 工具的定扭力装置
US20090044668A1 (en) * 2007-08-16 2009-02-19 Shu-Sui Lin Torque device for use in tools
CN201931412U (zh) * 2011-01-11 2011-08-17 苏州市职业大学 机械式可调扭矩螺丝刀
CN202517414U (zh) * 2012-03-26 2012-11-07 杭州巨星工具有限公司 可调扭力螺丝批

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2396040A (en) * 1944-10-30 1946-03-05 Frank L Darling Screw driver
US4653359A (en) * 1985-10-11 1987-03-31 Liao Hsieh Yuan Structural improvement of electric screwdriver with respect to the torsion adjustment thereof
US7647852B1 (en) * 2008-11-10 2010-01-19 Rinner James H Ratchet screwdriver and connection arrangement
US8430868B2 (en) * 2009-04-23 2013-04-30 Cardiac Pacemakers, Inc. Axial-force limiting torque wrench for use with implantable medical devices
DE202010008300U1 (de) * 2010-08-17 2010-11-18 Gong Fong Enterprise Co., Ltd., Kuan Tien Shiang Teleskopischer präziser Ratschenschraubenzieher
DE202011051298U1 (de) * 2011-09-14 2011-12-21 Compass Corporation Ratsche Werkzeug

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1785601A (zh) * 2004-12-07 2006-06-14 罗伯特·博世有限公司 具有转矩限制单元的手持式工具机
CN101195216A (zh) * 2006-12-08 2008-06-11 罗伯特·博世有限公司 用于手持式工具机的端头附件
CN201082530Y (zh) * 2007-08-06 2008-07-09 腾达工具工业有限公司 工具的定扭力装置
US20090044668A1 (en) * 2007-08-16 2009-02-19 Shu-Sui Lin Torque device for use in tools
CN201931412U (zh) * 2011-01-11 2011-08-17 苏州市职业大学 机械式可调扭矩螺丝刀
CN202517414U (zh) * 2012-03-26 2012-11-07 杭州巨星工具有限公司 可调扭力螺丝批

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013009358B4 (de) 2013-06-03 2018-03-22 Jin-Tsai Lai Konstruktion zur Einstellung des Drehmoments am Schraubendreher
DE202021102127U1 (de) 2021-04-21 2022-07-22 Hazet-Werk Hermann Zerver Gmbh & Co. Kg Drehmomentwerkzeug
WO2022223068A1 (de) 2021-04-21 2022-10-27 Hazet-Werk Hermann Zerver Gmbh & Co. Kg Drehmomentwerkzeug

Also Published As

Publication number Publication date
CN103358265A (zh) 2013-10-23
US9421675B2 (en) 2016-08-23
CN103358265B (zh) 2016-06-15
US20150090078A1 (en) 2015-04-02

Similar Documents

Publication Publication Date Title
WO2013143258A1 (zh) 可调扭力螺丝批
JP3209166U (ja) トルク調整機能を備えるトルクスリーブ
US20090255386A1 (en) Torque Socket
TWI408030B (zh) 扭力限制接頭
US2157574A (en) Torque release wrench
US20060162510A1 (en) Torque screwdriver
US9089957B2 (en) Torque wrench with constant torque
US20180311800A1 (en) Rotary torque boosting device
US7156367B1 (en) Gas control knob that is operated manually or automatically
US8408103B2 (en) Isolative torque-exerting apparatus
US20040187648A1 (en) Annular wrench
JP3229727U (ja) トルクスリーブ
JP2002066940A (ja) 工具ソケット
TWM606136U (zh) 扭力扳手扭力調整裝置（一）
TW202104740A (zh) 自行車鎖具
US7770495B1 (en) Ratchet connector
US7281459B2 (en) Torque regulating assembly
TW202021741A (zh) 扭力調整裝置
CN110315459A (zh) 一种带有脱落装置的打滑式力矩扳手
US11253983B2 (en) Torque screwdriver device
TWI743978B (zh) 扭力扳手扭力調整裝置（一）
CN207915352U (zh) 电动螺丝刀
CN104669177A (zh) 手动内、外六角万向扳手
CN202517414U (zh) 可调扭力螺丝批
TWI826188B (zh) 扭力扳手

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 13634162

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12872592

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12872592

Country of ref document: EP

Kind code of ref document: A1