WO2024060661A1 - 一种拉紧机构 - Google Patents

一种拉紧机构 Download PDF

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Publication number
WO2024060661A1
WO2024060661A1 PCT/CN2023/096405 CN2023096405W WO2024060661A1 WO 2024060661 A1 WO2024060661 A1 WO 2024060661A1 CN 2023096405 W CN2023096405 W CN 2023096405W WO 2024060661 A1 WO2024060661 A1 WO 2024060661A1
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WO
WIPO (PCT)
Prior art keywords
gear
tensioning
planetary gear
reduction mechanism
ring gear
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Application number
PCT/CN2023/096405
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English (en)
French (fr)
Inventor
何瑜华
姜水波
Original Assignee
浙江维派包装设备有限公司
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Publication of WO2024060661A1 publication Critical patent/WO2024060661A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B65/00—Details peculiar to packaging machines and not otherwise provided for; Arrangements of such details
    • B65B65/02—Driving gear

Definitions

  • the present invention relates to a tensioning mechanism, and in particular to a tensioning mechanism of a portable baler.
  • a portable baler is a portable device used to easily carry to relevant work points to bundle items.
  • the tensioning mechanism is used to tighten the strapping belt after wrapping it around the item.
  • Its actuator adopts a tensioning wheel and uses planetary gear reduction transmission.
  • One-way bearings and pawls are used to prevent loosening under tension.
  • the one-way bearing was set at the ratchet, and the entire connection structure was complicated.
  • the purpose of the present invention is to provide a tensioning mechanism that is suitable for installation in a portable baler and has a simpler structure to prevent loosening in a tensioned state.
  • the present invention adopts the following technical solutions:
  • a tensioning mechanism installed in a portable baling machine is provided with a tensioning wheel and a tensioning wheel driving motor; a planetary gear reduction mechanism is provided between the driving motor and the tensioning wheel.
  • the tensioning wheel A tensioning wheel inner ring gear is provided and connected to the planetary gear reduction mechanism; it is characterized in that the planetary gear reduction mechanism is provided with a lockable ring gear, and the ring gear is provided with an inner ring gear and an outer ring gear that are coaxial with the sun gear.
  • the tensioning mechanism is provided with a locking gear that clutches and cooperates with the outer ring gear
  • the output shaft of the drive motor is connected to a one-way bearing, so that the output shaft can only pull according to the drive
  • the tightening wheel rotates in the direction of tightening the strap.
  • the locking gear is connected to the handle.
  • the locking gear is provided with reset support by an elastic element to maintain the normal state of meshing with the external gear ring of the lockable gear ring.
  • the locking gear can be disengaged from the external gear by operating the handle. The meshing of circles.
  • the locking gear is a tooth block with 2 teeth.
  • the planetary gear reduction mechanism is configured as a multi-stage planetary gear reduction mechanism.
  • the output shaft is connected to the output gear.
  • the output gear serves as the sun gear on the first-stage planetary gear reduction mechanism and can be locked.
  • the inner ring gear of the ring gear is meshed with the planetary gear of the first-stage planetary gear reduction mechanism.
  • the inner ring gear provided by the tensioning wheel is connected to the last-stage planetary gear reduction mechanism through the gear connection structure.
  • the planetary gear reduction mechanisms of each level The sun gear is coaxial, and the internal ring gear of the tensioning wheel is coaxial with the sun gear.
  • An output gear is provided on the output shaft.
  • the output gear serves as the sun gear on the first-stage planetary gear reduction mechanism.
  • the inner ring gear of the lockable ring gear is meshed with the planetary gear of the first-stage planetary gear reduction mechanism.
  • the planet carrier of the first-stage planetary gear reduction mechanism is connected to the sun gear of the second-stage planetary gear reduction mechanism, and the planet carrier of the second-stage planetary gear reduction mechanism is connected to the second output gear coaxial with the sun gear.
  • the tensioning mechanism A fixed ring is provided with an internal ring gear.
  • the fixed ring is fixedly connected to the mounting base.
  • the planetary gears of the second-stage planetary gear reduction mechanism are meshed and connected with the inner ring gear of the fixed ring.
  • the mounting base surrounds the second output gear.
  • a plurality of connecting gears that can only rotate are provided, the second output gear is meshed with the connecting gear, and the internal ring gear provided with the tensioning wheel is meshed with the connecting gear;
  • the mounting base is rotatably connected to the base. connection, a mounting seat return spring is set between the mounting seat and the base to keep the mounting seat in the normal position of the tensioning belt, the handle and the mounting seat are rotationally connected;
  • the sun gears of the planetary gear reduction mechanisms at all levels are coaxial Line, the inner ring gear of the tensioning wheel is coaxial with the sun gear.
  • the tensioning mechanism is rotatably installed on the base, and a return spring keeps the tensioning mechanism in the normal position of the tensioning belt.
  • the mounting base is provided with a return spring hole, and the bottom of the return spring hole is threadedly connected to a plug supporting the spring.
  • a return spring limiting component is provided on the base. One end of the return spring is inserted into the return spring hole, and the other end is inserted into the return spring hole. The limiting part is limited.
  • the tensioning mechanism is provided with a mounting plate and a side cover, which are located on both sides of the base.
  • the tensioning wheel drive motor is located outside the mounting plate and is fixedly connected to the mounting plate.
  • the planet Gear reducer The tensioning mechanism and the tensioning wheel are located between the mounting plate and the side cover; the tensioning mechanism is provided with a rotating shaft of the tensioning mechanism that is connected to the mounting plate, the mounting seat and the side cover and passes through the base, and the mounting plate and side cover are connected to the mounting plate and the side cover.
  • the mounting base is fixedly connected.
  • the output shaft is a shaft with a flat section, which is connected to the output gear through the flat section.
  • the rear end of the output gear is provided with a bushing with an inner hole and a matching flat section.
  • the bushing can be Fixed as a whole with the output gear or limited at the rear end of the output gear, a bushing with a flat position in the inner hole is combined with the output shaft with a flat section, and the one-way bearing is sleeved on the In addition to the bushing, the one-way bearing limits the one-way rotation of the output shaft through the bushing.
  • the present invention can reduce the number of gears in terms of anti-return one-way transmission and unlocking, and the one-way component is set at the power point.
  • the rotational force is transmitted through the front-end planetary deceleration component, the relative transmission force is relatively small, which is enough to act as a brake. The effect is to make the tensioning wheel stop after being tightened.
  • the present invention does not need to use a pawl but can use a common tooth shape to lock the inner ring gear outside the planetary gear, so that the meshing is stable and avoids the problem that the teeth of the pawl and the ratchet wheel are single hooks, which are easy to disengage and the fit is unstable. question.
  • Figure 1 is one of the three-dimensional schematic views of an embodiment of the present invention.
  • FIG. 2 is a schematic three-dimensional view of the embodiment of the present invention viewed from another angle.
  • Figure 3 is an exploded view of the structure of the embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a partial structure of an embodiment of the present invention.
  • Figure 5 is a front view of the embodiment of the present invention with the side cover hidden.
  • the invention provides a tensioning mechanism, which is installed and used in a portable baling machine.
  • the portable baling machine is provided with a tensioning wheel 100 and a tensioning wheel driving motor 200 .
  • a planetary gear reduction mechanism is provided between the driving motor 200 and the tensioning wheel 100 .
  • the tensioning wheel 100 is provided with an internal ring gear 101, and the internal ring gear 101 is connected to a planetary gear reduction mechanism.
  • the planetary gear reduction mechanism is provided with a lockable ring gear 4, which is set at the same time as the sun gear.
  • the inner ring gear 41 and the outer ring gear 42 of the axis are meshed and connected with the planetary gears.
  • the tensioning mechanism is provided with a locking gear 5 that clutches and cooperates with the outer ring gear 42.
  • the driving motor 200 The output shaft 201 is connected to the one-way bearing 202, so that the output shaft 201 can only rotate in the tightening direction of the driving tensioning wheel 100.
  • the inner ring of the one-way bearing 202 can be directly connected to the output shaft 201, or can be connected to a shaft sleeve structure that is connected to the output shaft 201 to prevent rotation.
  • the output shaft 201 is a shaft with a flat section 204 , which is connected to the output shaft 201 through the flat section 204.
  • the rear end of the output gear 203 is provided with a bushing 205 with a flat inside hole.
  • the bushing 205 can be fixed as one body with the output gear 203 or It is limited at the rear end of the output gear 203.
  • the shaft sleeve 205 with a flat position in the inner hole is combined with the output shaft 201 with a flat section 204.
  • the one-way bearing 202 is sleeved outside the sleeve 205.
  • the directional bearing 202 limits one-way rotation of the output shaft through the sleeve.
  • the locking gear 5 is connected to the handle 81.
  • the locking gear 5 is provided with reset support by the elastic element 51 to maintain the normal state of meshing with the outer ring gear 42 of the lockable gear ring 4.
  • the locking gear 5 can be disengaged from the meshing with the outer ring gear 42 by operating the handle 81 to release the lock, and the gear ring 4 can rotate, so that in the non-working state, the planetary gear can only rotate idly, and will not drive the planetary carrier or even the tension wheel 100 to rotate, providing safety protection.
  • the elastic element 51 can be a compression spring, which is arranged on the mounting seat 8 of the portable baler, and is located between the handle 81 and the mounting seat 8.
  • the locking gear 5 rotates around the rotation axis of the handle 81, so that the locking gear 5 and the outer gear ring 42 are engaged and separated. Due to the gravity of the handle 81 and the action of the elastic element 51, the locking gear 5 is in a self-locking state when engaged.
  • the locking gear is a tooth block with two teeth.
  • the output shaft 201 is provided with an output gear 203, and the output gear 203 serves as a sun gear on the first-stage planetary gear reduction mechanism.
  • the reference numeral 61 is a planetary gear of the first-stage planetary gear reduction mechanism.
  • the output gear 203 is meshed with the planetary gear 61, and the planetary gear 61 is mounted on a rotatable planet carrier 610.
  • the inner gear ring 41 of the lockable gear ring 4 is meshed with the planetary gear 61 of the first-stage planetary gear reduction mechanism.
  • the planet carrier 610 of the first-stage planetary gear reduction mechanism is connected to the sun gear 621 of the second-stage planetary gear reduction mechanism.
  • the reference numeral 62 is a planetary gear of the second-stage planetary gear reduction mechanism.
  • the sun gear 621 is meshed and connected with the planetary gear 62.
  • the planetary gear 62 is mounted on a rotatable planetary carrier 620, and the planetary carrier 620 of the second-stage planetary gear reduction mechanism is connected to a second output gear 631 coaxial with the sun gear.
  • the tensioning mechanism is provided with a fixed ring 7, the fixed ring 7 is provided with an internal ring gear 71, and the planetary gears 62 of the second-stage planetary gear reduction mechanism are meshed with the internal ring gear 71.
  • the fixing ring 7 is fixedly connected to the mounting base 8 and cannot rotate relative to the mounting base 8 .
  • a plurality of connecting gears 63 that can only rotate are provided on the mounting base 8 around the second output gear 631.
  • the second output gears 631 are meshed with the connecting gears 63.
  • the internal ring gear 101 provided on the tensioning wheel 100 is engaged with the connecting gear 63 .
  • the tensioning mechanism is rotatably installed on the base 300, and the tensioning mechanism is maintained in the normal state of the tensioning belt working position by the return spring 82.
  • the mounting base 8 is rotatably connected to the base 300.
  • a mounting base return spring 82 is provided between the mounting base 8 and the base 300 to keep the mounting base 8 in the normal state of the tensioning belt working position.
  • the return spring 82 can Using a compression spring, the handle 81 is rotationally connected to the mounting base 8, which is used to lift the tensioning mechanism during belt threading and other work. At the same time, after the handle is lifted, the locking gear 5 is automatically unlocked.
  • Reference numeral 86 is the handle shaft.
  • the return spring 82 is adjustable
  • the mounting base 8 is provided with a return spring hole 86
  • the bottom of the return spring hole 86 is threadedly connected to a plug 87 that supports the spring
  • the base 300 is provided with a return spring limiter. component (such as a long bolt 85)
  • one end of the return spring 82 is inserted into the return spring hole 86, and the other end is placed outside the long bolt 85 and is limited by it.
  • the mounting base 8 can be rotated open and the plug 87 can be adjusted from the bottom. After the adjustment is completed, the mounting base 8 can be lowered.
  • the plug 87 is in a position that is less likely to be misoperated, which helps to ensure that the device is debugged. final reliability.
  • the sun gear of the planetary gear reduction mechanism at all levels is coaxial, the internal ring gear 101 of the tensioning wheel 100 is coaxial with the sun gear, and the internal ring gear 71 of the fixed ring is coaxial with the sun gear.
  • the tensioning mechanism is provided with a mounting plate 83 and a side cover 84.
  • the mounting plate 83 and the side cover 84 are located on both sides of the base 300.
  • the base is provided with a penetrating elliptical hole 301 and a fixing wheel that cooperates with the tensioning wheel.
  • the tooth block 302 is for the tensioning mechanism to pass through.
  • the tensioning wheel driving motor 200 is located outside the mounting plate 83 and is fixedly connected to the mounting plate 83.
  • the planetary gear reduction mechanism and the tensioning wheel 100 are located on the mounting plate 83 and Side cover 84 between; the tensioning mechanism is provided with a tensioning mechanism rotating shaft 85 connected to the mounting plate 83, the mounting base 8 and the side cover 84 and passing through the base 300; the mounting plate 83 and the side cover 84 are fixed to the mounting base 8 connect.
  • the terms “disposed”, “clamped” and “connected” should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two elements.
  • the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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Abstract

一种拉紧机构，安装在手提打包机中，手提打包机设置拉紧轮（100）、拉紧轮驱动电机（200）；拉紧轮驱动电机（200）和拉紧轮（100）之间设置行星齿轮减速机构，拉紧轮（100）设置内齿圈（101），内齿圈（101）与行星齿轮减速机构连接；行星齿轮减速机构设置可锁定的齿环（4），齿环（4）设置与太阳齿轮同轴线的内齿圈（41）和外齿圈（42），内齿圈（41）和行星齿轮（61）啮合连接，拉紧机构设置与外齿圈（42）离合配合的锁定齿轮（5），拉紧轮驱动电机（200）的输出轴（201）连接单向轴承（202），使得输出轴（201）只能按照驱动拉紧轮（100）按拉紧带子的方向旋转。

Description

一种拉紧机构 技术领域
本发明涉及拉紧机构，尤其涉及手提打包机的拉紧机构。
背景技术
手提打包机是一种便携式设备，用于方便地携带到相关工作点捆扎物品。其中的拉紧机构用于把打包带在绕物品一圈后拉紧打包带，其执行机构采用拉紧轮，采用行星齿轮减速传动。采用单向轴承和棘爪防止在拉紧状态下松动。以往拉紧机构的棘爪与电机之间连接齿轮较多，单向轴承设置在棘轮处，整个连接结构复杂。
发明内容
本发明的目的是提供一种拉紧机构，适用于安装在手提打包机中应用，防止在拉紧状态下松动的结构更加简单。为此，本发明采用以下技术方案：
一种拉紧机构，安装在手提打包机中，所述手提打包机设置拉紧轮、拉紧轮驱动电机；所述驱动电机和拉紧轮之间设置行星齿轮减速机构，所述拉紧轮设置拉紧轮内齿圈，与行星齿轮减速机构连接；其特征在于所述行星齿轮减速机构设置可锁定的齿环，所述齿环设置与太阳齿轮同轴线的内齿圈和外齿圈，所述内齿圈和行星齿轮啮合连接，所述拉紧机构设置与所述外齿圈离合配合的锁定齿轮，所述驱动电机的输出轴连接单向轴承，使得输出轴只能按照驱动拉紧轮按拉紧带子的方向旋转。
在采用上述技术方案的基础上，本发明还可采用以下进一步的技术方案，或对这些进一步的技术方案组合使用：
所述锁定齿轮与手柄连接，所述锁定齿轮由弹性元件提供复位支撑而保持与可锁定齿环的外齿圈啮合的常态，所述锁定齿轮能通过操作手柄脱离与所述外齿 圈的啮合。
所述锁定齿轮为齿块，齿数为2个。
自输出轴至拉紧轮，所述行星齿轮减速机构设置为多级行星齿轮减速机构，所述输出轴连接输出齿轮，所述输出齿轮作为第一级行星齿轮减速机构上的太阳齿轮，可锁定齿环的内齿圈与第一级行星齿轮减速机构的行星齿轮啮合连接，所述拉紧轮设置的内齿圈通过齿轮连接结构与末级行星齿轮减速机构连接，各级行星齿轮减速机构的太阳齿轮同轴线，所述拉紧轮的内齿圈与太阳齿轮同轴线。
所述输出轴上设置输出齿轮，所述输出齿轮作为第一级行星齿轮减速机构上的太阳齿轮，可锁定齿环的内齿圈与第一级行星齿轮减速机构的行星齿轮啮合连接，所述第一级行星齿轮减速机构的行星架连接第二级行星齿轮减速机构的太阳齿轮，第二级行星齿轮减速机构的行星架连接与太阳齿轮同轴线的第二输出齿轮，所述拉紧机构设置固定环，所述固定环设置内齿圈，固定环与安装座固定连接，第二级行星齿轮减速机构的行星齿轮与固定环内齿圈啮合连接，安装座上围绕所述第二输出齿轮设置多个只能自转的连接齿轮，所述第二输出齿轮和连接齿轮啮合连接，所述拉紧轮设置的内齿圈与所述连接齿轮啮合连接；所述安装座可转动地与基座连接，所述安装座和基座之间设置安装座复位弹簧，使安装座保持位于拉紧带工作位的常态，所述手柄和安装座转动连接；各级行星齿轮减速机构的太阳齿轮同轴线，所述拉紧轮的内齿圈与太阳齿轮同轴线。
所述拉紧机构可转动地安装在基座上，通过复位弹簧使所述拉紧机构保持位于拉紧带工作位的常态。
所述安装座设置复位弹簧孔，复位弹簧孔的底部螺纹连接支撑弹簧的堵头，所述基座上设置复位弹簧限位部件，所述复位弹簧一端置入复位弹簧孔，另一端被所述限位部件限位。
所述拉紧机构设置有安装板和侧盖，所述安装板和侧盖位于基座的两侧，所述拉紧轮驱动电机位于安装板之外，并与安装板固定连接，所述行星齿轮减速机 构和拉紧轮位于安装板和侧盖之间；所述拉紧机构设置与安装板、安装座和侧盖连接并穿过基座的拉紧机构转动轴，所述安装板和侧盖与安装座固定连接。
输出轴为有扁位段的轴，通过所述扁位段来与所述输出齿轮连接，所述输出齿轮的后端设置有内孔带有配合扁位的轴套，所述轴套可以是与所述输出齿轮固定为一体或被限位在所述输出齿轮的后端，内孔带有扁位的轴套与带有扁位段的输出轴结合，所述单向轴承则套在所述轴套之外，所述单向轴承通过所述轴套来限制输出轴单向转动。
本发明在止逆单向传动和解锁方面，能够减少齿轮的数量，并且，把单向组件设置在动力处，当回转力通过前端行星减速组件的传导，相对传导力比较小，足以起到刹车效果，使拉紧轮拉紧后处于停止状态。而且，本发明不必采用棘爪而可以采用普通齿形来对锁定行星齿轮外的内齿圈，啮合稳定，避免了由于棘爪与棘轮配合的齿是单勾，容易脱勾、配合不稳定的问题。
以下结合附图和具体实施方式对本发明作进一步的详细说明。
附图说明
图1为本发明实施例的立体示意图之一。
图2为本发明实施例的从另一个角度观察的立体示意图。
图3为本发明实施例的结构爆炸图。
图4为本发明实施例部分结构的示意图。
图5为本发明实施例在隐去侧盖后的主视图。
具体实施方式
参照附图。本发明提供了一种拉紧机构，安装于手提打包机中应用，所述手提打包机设置拉紧轮100、拉紧轮驱动电机200。所述驱动电机200和拉紧轮100之间设置行星齿轮减速机构。
所述拉紧轮100设置内齿圈101，内齿圈101与行星齿轮减速机构连接。
所述行星齿轮减速机构设置可锁定的齿环4，所述齿环4设置与太阳齿轮同 轴线的内齿圈41和外齿圈42，所述内齿圈41和行星齿轮啮合连接，所述拉紧机构设置与所述外齿圈42离合配合的锁定齿轮5，所述驱动电机200的输出轴201连接单向轴承202，使得输出轴201只能按照驱动拉紧轮100按拉紧的方向旋转。所述单向轴承202的内圈可以直接和输出轴201连接，也可与和输出轴201防转连接在一起的轴套结构连接，比如，当输出轴201为有扁位段204的轴时，其通过所述扁位段204来与输出轴201连接，所述输出齿轮203的后端设置有内孔带扁位的轴套205，该轴套205可以是与输出齿轮203固定为一体或被限位在输出齿轮203的后端，内孔带有扁位的轴套205与带有扁位段204的输出轴201结合，所述单向轴承202则套在轴套205之外，单向轴承202通过所述轴套来限制输出轴单向转动。
所述锁定齿轮5与手柄81连接，所述锁定齿轮5由弹性元件51提供复位支撑而保持与可锁定齿环4的外齿圈42啮合的常态，所述锁定齿轮5能通过操作手柄81脱离与所述外齿圈42的啮合，解除锁定，齿环4可以转动，使得在不工作状态，行星齿轮只能空转，不会带动行星架乃至拉紧轮100转动，提供安全保障。所述弹性元件51可采用压簧，设置在手提打包机的安装座8上，位于手柄81和安装座8之间。
所述锁定齿轮5绕手柄81的转动轴线转动，从而使锁定齿轮5和外齿圈42啮合和分开，由于手柄81的重力关系和弹性元件51的作用下，使啮合时，处于自锁状态。优选地，所述锁定齿轮为齿块，齿数为2个。
所述输出轴201上设置输出齿轮203，所述输出齿轮203作为第一级行星齿轮减速机构上的太阳齿轮，附图标号61为第一级行星齿轮减速机构的行星齿轮，输出齿轮203与行星齿轮61啮合连接，行星齿轮61安装在可转动的行星架610上，可锁定齿环4的内齿圈41与第一级行星齿轮减速机构的行星齿轮61啮合连接。所述第一级行星齿轮减速机构的行星架610连接第二级行星齿轮减速机构的太阳齿轮621，附图标号62为第二级行星齿轮减速机构的行星齿轮，太阳齿轮 621与行星齿轮62啮合连接。行星齿轮62安装在可转动的行星架620上，第二级行星齿轮减速机构的行星架620连接与太阳齿轮同轴线的第二输出齿轮631。
所述拉紧机构设置固定环7，所述固定环7设置内齿圈71，所述第二级行星齿轮减速机构的行星齿轮62与内齿圈71啮合连接。固定环7与安装座8固定连接而不能相对于安装座8转动。安装座8上围绕所述第二输出齿轮631设置多个只能自转的连接齿轮63，第二输出齿轮631与连接齿轮63啮合连接。所述拉紧轮100设置的内齿圈101与所述连接齿轮63啮合连接。
所述拉紧机构可转动地安装在基座300上，通过复位弹簧82使所述拉紧机构保持位于拉紧带工作位的常态。所述安装座8可转动地与基座300连接，所述安装座8和基座300之间设置安装座复位弹簧82，使安装座8保持位于拉紧带工作位的常态，复位弹簧82可采用压簧，所述手柄81和安装座8转动连接，用于在穿带等工作时，抬起拉紧机构，同时，抬起手柄后，也自动使所述锁定齿轮5解锁。附图标号86为手柄转轴。
进一步地，所述复位弹簧82被可调节地设置，所述安装座8设置复位弹簧孔86，复位弹簧孔86的底部螺纹连接支撑弹簧的堵头87，所述基座300上设置复位弹簧限位部件(比如长螺栓85)，所述复位弹簧82一端置入复位弹簧孔86，另一端套在长螺栓85外并被其限位。当需要调节时，可以将安装座8转动打开，从底部进行调节堵头87，在调节完成后，再放下安装座8，堵头87处于不易被误操作的部位，有助于保障装置在调试后的可靠性。
各级行星齿轮减速机构的太阳齿轮同轴线，所述拉紧轮100的内齿圈101与太阳齿轮同轴线，固定环内齿圈71与太阳齿轮同轴线。
所述拉紧机构设置有安装板83和侧盖84，所述安装板83和侧盖84位于基座300的两侧，基座中设置有贯通的椭圆孔301以及与拉紧轮配合的固定齿块302，供拉紧机构穿设，所述拉紧轮驱动电机200位于安装板83之外，并与安装板83固定连接，所述行星齿轮减速机构和拉紧轮100位于安装板83和侧盖84 之间；所述拉紧机构设置与安装板83、安装座8和侧盖84连接并穿过基座300的拉紧机构转动轴85，所述安装板83和侧盖84与安装座8固定连接。
如无特殊说明，本发明中，若有术语“上”、“下”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“轴向”等指示的方位或位置关系是基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此本发明中描述方位或位置关系的用语仅用于示例性说明，不能理解为对本专利的限制，对于本领域的普通技术人员而言，可以结合附图，并根据具体情况理解上述术语的具体含义。
除非另有明确的规定和限定，本发明中，若有术语“设置”、“夹设”及“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
以上所述仅为本发明的具体实施例，但本发明的结构特征并不局限于此，任何本领域的技术人员在本发明的领域内，所作的变化或修饰皆涵盖在本发明的保护范围之中。

Claims (9)

  1. 一种拉紧机构，安装在手提打包机中，所述手提打包机设置拉紧轮、拉紧轮驱动电机；所述驱动电机和拉紧轮之间设置行星齿轮减速机构，所述拉紧轮设置拉紧轮内齿圈，与行星齿轮减速机构连接；其特征在于所述行星齿轮减速机构设置可锁定的齿环，所述齿环设置与太阳齿轮同轴线的内齿圈和外齿圈，所述内齿圈和行星齿轮啮合连接，所述拉紧机构设置与所述外齿圈离合配合的锁定齿轮，所述驱动电机的输出轴连接单向轴承，使得输出轴只能按照驱动拉紧轮按拉紧带子的方向旋转。
  2. 如权利要求1所述的一种拉紧机构，其特征在于所述锁定齿轮与手柄连接，所述锁定齿轮由弹性元件提供复位支撑而保持与可锁定齿环的外齿圈啮合的常态，所述锁定齿轮能通过操作手柄脱离与所述外齿圈的啮合。
  3. 如权利要求1或2所述的一种拉紧机构，其特征在于所述锁定齿轮为齿块，齿数为2个。
  4. 如权利要求1所述的一种拉紧机构，其特征在于自输出轴至拉紧轮，所述行星齿轮减速机构设置为多级行星齿轮减速机构，所述输出轴连接输出齿轮，所述输出齿轮作为第一级行星齿轮减速机构上的太阳齿轮，可锁定齿环的内齿圈与第一级行星齿轮减速机构的行星齿轮啮合连接，所述拉紧轮设置的内齿圈通过齿轮连接结构与末级行星齿轮减速机构连接，各级行星齿轮减速机构的太阳齿轮同轴线，所述拉紧轮的内齿圈与太阳齿轮同轴线。
  5. 如权利要求2所述的一种拉紧机构，其特征在于所述输出轴上设置输出齿轮，所述输出齿轮作为第一级行星齿轮减速机构上的太阳齿轮，可锁定齿环的内齿圈与第一级行星齿轮减速机构的行星齿轮啮合连接，所述第一级行星齿轮减速机构的行星架连接第二级行星齿轮减速机构的太阳齿轮，第二级行星齿轮减速机构的行星架连接与太阳齿轮同轴线的第二输出齿轮，所述拉紧机构设置固定环，所述固定环设置内齿圈，固定环与安装座固定连接，第二级行星齿轮减速机构的 行星齿轮与固定环内齿圈啮合连接，安装座上围绕所述第二输出齿轮设置多个只能自转的连接齿轮，所述第二输出齿轮和连接齿轮啮合连接，所述拉紧轮设置的内齿圈与所述连接齿轮啮合连接；所述安装座可转动地与基座连接，所述安装座和基座之间设置安装座复位弹簧，使安装座保持位于拉紧带工作位的常态，所述手柄和安装座转动连接；各级行星齿轮减速机构的太阳齿轮同轴线，所述拉紧轮的内齿圈与太阳齿轮同轴线。
  6. 如权利要求5所述的一种拉紧机构，其特征在于所述拉紧机构可转动地安装在基座上，通过复位弹簧使所述拉紧机构保持位于拉紧带工作位的常态。
  7. 如权利要求6所述的一种拉紧机构，其特征在于所述安装座设置复位弹簧孔，复位弹簧孔的底部螺纹连接支撑弹簧的堵头，所述基座上设置复位弹簧限位部件，所述复位弹簧一端置入复位弹簧孔，另一端被所述限位部件限位。
  8. 如权利要求5所述的一种拉紧机构，其特征在于所述拉紧机构设置有安装板和侧盖，所述安装板和侧盖位于基座的两侧，所述拉紧轮驱动电机位于安装板之外，并与安装板固定连接，所述行星齿轮减速机构和拉紧轮位于安装板和侧盖之间；所述拉紧机构设置与安装板、安装座和侧盖连接并穿过基座的拉紧机构转动轴，所述安装板和侧盖与安装座固定连接。
  9. 如权利要求4所述的一种拉紧机构，其特征在于输出轴为有扁位段的轴，通过所述扁位段来与所述输出齿轮连接，所述输出齿轮的后端设置有内孔带有配合扁位的轴套，所述轴套可以是与所述输出齿轮固定为一体或被限位在所述输出齿轮的后端，内孔带有扁位的轴套与带有扁位段的输出轴结合，所述单向轴承则套在所述轴套之外，所述单向轴承通过所述轴套来限制输出轴单向转动。
PCT/CN2023/096405 2022-09-23 2023-05-25 一种拉紧机构 WO2024060661A1 (zh)

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