A harness belt driving mechanism

Abstract

The utility model discloses a kind of harness drive mechanisms, comprising: planetary assembly and connecting piece, planetary assembly includes input shaft and planetary gear, input shaft is connected with planetary gear, to drive planetary gear revolves around input shaft and rotates, connecting piece one end is connected on the central shaft of planetary gear, the other end is arranged on harness, rotating planetary gear is driven by connecting piece inserted on harness and reciprocates up and down on harness.The utility model is by the drive mechanism that drive harness moves up and down is set to the structure that planetary gear assembly and connecting piece cooperate, transmission is carried out using planetary assembly, so that the structure of harness drive mechanism is compact and operation is not easily affected by inertial force, it occupies smaller space on circular loom, power transmission can be carried out with high efficiency, carrying capacity is strong and operation stability is high, planetary assembly can greatly reduce vibration and noise in power transmission process.

Description

Technical Field

[0001] This utility model belongs to the textile field, specifically relating to a heald belt drive mechanism. Background Technology

[0002] A circular loom is an industrial device used to weave tubular fabric. The tubular fabric is woven by the cross-weft of warp and weft threads. The warp threads are threaded through the holes of the heddles. The reciprocating motion of the heddles drives the heddles and the warp threads threaded through the heddles to move up and down. The weft threads pass through the reciprocating warp threads to weave the tubular fabric.

[0003] Currently, circular looms typically mount a flat cam on the main shaft. When the flat cam rotates, it drives the end of a rocker arm to reciprocate up and down, which in turn drives the heald belt connected to the end of the rocker arm to reciprocate up and down. However, in existing circular looms, the flat cam and rocker arm are affected by inertial forces during operation, resulting in poor stability of the rocker arm's movement, making it prone to vibration and noise. Furthermore, the contact between the flat cam and rocker arm is a high-pair contact, with high stress at the contact point, easily generating heat and causing wear, thus resulting in a short service life for both the flat cam and the rocker arm. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a helical belt drive mechanism to solve the problems of high vibration and noise during transmission.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a heald belt drive mechanism, comprising: a planetary assembly and a connecting member. The planetary assembly includes an input shaft and planetary gears. The input shaft is connected to the planetary gears to drive the planetary gears to revolve around the input shaft and rotate on their own axis. One end of the connecting member is connected to the central shaft of the planetary gears, and the other end passes through the heald belt. The rotating planetary gears drive the heald belt to reciprocate up and down through the connecting member inserted into the heald belt. This technical solution has the following technical effects:

[0006] This invention connects the two ends of the connector to the planetary gears and the heald belt, respectively. When the circular loom is working, the planetary gears revolve and rotate under the drive of the input shaft. Since the heald belt can only reciprocate vertically, the connector inserted into the heald belt can transmit power between the planetary gears and the heald belt by connecting to the planetary gears. This drives the heald belt connected to the end of the connector to move up and down. The up-and-down movement of the heald belt drives the heddle yarns to move up and down, thereby enabling the warp threads threaded on the heddle yarns to move up and down. In other words, by setting the drive mechanism for driving the heald belt to move up and down as a structure where the planetary assembly and the connector cooperate, replacing the pendulum rod, the circular loom only needs to drive the planetary assembly to rotate. The planetary assembly can then convert the rotation into the up-and-down movement of the heald belt through the connector, achieving power transmission. Using a planetary assembly for transmission makes the heald belt drive mechanism compact and less susceptible to inertial forces. It occupies less space on the circular loom while efficiently transmitting power, has a high load-bearing capacity and high operational stability, and the planetary assembly greatly reduces vibration and noise during power transmission.

[0007] In the aforementioned heald belt drive mechanism, the connecting component includes a connecting rod and an output rod. The output rod passes through the heald belt, and the connecting rod includes an input end and an output end. The input end is rotatably connected to a planetary gear, and the output end is rotatably connected to the output rod. While the planetary gear rotates on its own axis, it also revolves around the input shaft, thereby driving the connecting rod, which is rotatably connected to the planetary gear, to rotate around the central axis of the planetary gear and undergo displacement. Because the output end of the connecting rod is rotatably connected to the output rod, the output rod does not rotate; it only drives the heald belt to move up and down. By configuring the connecting rod and the output rod as a rotatably connected structure, the output rod does not rotate with the connecting rod and the planetary gear, avoiding continuous wear between the output rod and the heald belt due to continuous rotation, thus extending the service life of the heald belt and the connecting component.

[0008] In the aforementioned belt drive mechanism, the planetary gear includes an integrally formed gear body and a central shaft. The central shaft passes through the input end for rotatable connection with the connecting rod. A retaining circlip is engaged on the central shaft to prevent the connecting rod from disengaging from the planetary gear. When the planetary gear and the connecting rod are assembled, the retaining circlip is located on the side of the connecting rod away from the gear body to prevent the connecting rod from disengaging from the planetary gear, ensuring stable transmission between the two.

[0009] In the aforementioned belt drive mechanism, the wheel or central shaft is further provided with an annular rib surrounding the central shaft. The annular rib and the stop snap ring are located on both sides of the connecting rod to axially limit the connecting rod. The annular rib is located on the side of the connecting rod facing the wheel to reserve a gap between the end faces of the connecting rod and the wheel, preventing excessive wear due to contact between the end faces of the connecting rod and the wheel, and extending the service life of the wheel and the connecting rod.

[0010] In the aforementioned belt drive mechanism, an output rod passes through the output end for rotatable connection with a connecting rod. The output rod and the output end are rotatably connected via a first bearing. The first bearing ensures stable relative rotation between the output rod and the connecting rod, while reducing wear between them and extending their service life.

[0011] In the aforementioned heald belt drive mechanism, the connecting member includes a connecting rod and an output rod vertically fixed to the end of the connecting rod. The output rod has a circular cross-section and passes through the heald belt. The end of the connecting rod away from the output rod is rotatably connected to a planetary gear. By setting the cross-section of the output rod to be circular, when the planetary gear revolves and rotates, the connecting rod rotates around the central axis of the planetary gear, thereby driving the output rod at the end of the connecting rod to drive the heald belt to slide up and down and rotate relative to the heald belt, simplifying the structure of the connecting member.

[0012] In the aforementioned belt drive mechanism, the planetary assembly also includes an outer ring surrounding the outer periphery of the planetary gears. When the input shaft drives the planetary gears to revolve within the outer ring, the outer ring meshes with the planetary gears, causing the planetary gears to rotate, resulting in stable and reliable transmission.

[0013] In one of the above-mentioned belt drive mechanisms, a transmission rod is fixed to the end of the input shaft, and the transmission rod is rotatably connected to the central shaft of the planetary gears to ensure stable transmission between the input shaft and the planetary gears; or, a sun gear is fixed to the end of the input shaft, and the sun gear meshes with the planetary gears. The input shaft and the planetary gears are transmitted through the sun gear, resulting in a constant transmission ratio and strong load-bearing capacity.

[0014] In the aforementioned heald belt drive mechanism, a limiting member is fixed on the outer ring. The limiting member has a sliding hole extending vertically along the radial direction of the outer ring. The connecting member passes through the sliding hole and is inserted into the heald belt. The sliding hole guides and limits the connecting member to prevent it from pulling the heald belt laterally, thus making the transmission between the connecting member and the heald belt smoother.

[0015] In the aforementioned heald belt drive mechanism, the planetary assembly further includes a conveyor belt and driving and driven pulleys for tensioning the conveyor belt. The driving pulley is fixed to the back plate and sleeved on the input shaft, while the driven pulley is fixed to the planetary gears. A transmission rod is fixed to the end of the input shaft, and the planetary gears are rotatably connected to the transmission rod. When the input shaft drives the planetary gears to revolve via the transmission rod, the conveyor belt drives the planetary gears to rotate via the driven pulley. The connecting member is fixed to the planetary gears. The revolution and rotation of the planetary gears ensure that the connecting member can only output vertical displacement to the heald belt, resulting in smooth transmission. Furthermore, because the rotation of the planetary gears is achieved through the conveyor belt drive, transmission dead points are avoided during transmission, making the transmission more stable and reliable.

[0016] The features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0018] Figure 1 This is a perspective view of the belt drive mechanism in Embodiment 1;

[0019] Figure 2 This is an exploded view of the belt drive mechanism in Example 1;

[0020] Figure 3 This is a cross-sectional view of the heald belt drive mechanism and the heald belt during assembly in Embodiment 1;

[0021] Figure 4 This is a schematic diagram of the belt drive mechanism without limiting components in Embodiment 1;

[0022] Figure 5 This is an assembly drawing of the planetary components and connectors in Embodiment 1;

[0023] Figure 6 This is a cross-sectional view of the heald belt drive mechanism and the heald belt during assembly in Embodiment 2;

[0024] Figure 7 This is a perspective view of the belt drive mechanism in Example 4;

[0025] Figure 8 This is a perspective view of the belt drive mechanism in Example 5;

[0026] Figure 9 This is a perspective view of the belt drive mechanism in Example 5 without a back plate.

[0027] Figure label:

[0028] 100. Gear ring;

[0029] 200. Planetary gear; 210. Gear body; 220. Central shaft; 221. Stop groove; 222. Stop circlip; 230. Annular rib; 240. Conveyor belt; 250. Driving wheel; 260. Driven wheel;

[0030] 300. Input axis;

[0031] 400. Transmission rod; 410. Mounting hole; 411. Annular limiting rib; 412. Annular limiting groove; 413. Limiting snap ring; 420. Second bearing;

[0032] 500. Limiting component; 510. Sliding hole;

[0033] 600. Connector; 610. Connecting rod; 611. Input end; 612. Output end; 620. Output rod; 630. First bearing;

[0034] 700, braided belt;

[0035] 800, chain loop; 810, chain hole;

[0036] 900. Back panel. Detailed Implementation

[0037] This invention discloses a heald belt drive mechanism, comprising a planetary assembly and a connector. The planetary assembly includes an input shaft and planetary gears. The input shaft is connected to the planetary gears to drive them to revolve around the input shaft and rotate on their own axis. One end of the connector is connected to the central shaft of the planetary gears, and the other end passes through the heald belt. The rotating planetary gears drive the heald belt to reciprocate up and down through the connector inserted into the heald belt. This invention connects both ends of the connector to the planetary gears and the heald belt respectively, so that when the circular loom is working, the planetary gears revolve around the input shaft and rotate on their own axis. Because the heald belt can only reciprocate in the vertical direction, the connector inserted into the heald belt can transmit power between the planetary gears and the heald belt by connecting to the planetary gears, thereby driving the heald belt connected to the end of the connector to move up and down. The up and down movement of the heald belt can drive the heddle wires to move up and down, thus realizing the up and down movement of the warp threads threaded on the heddle wires. In other words, by setting the drive mechanism for moving the heald belt up and down as a structure consisting of planetary components and connecting parts, replacing the pendulum rod, the circular loom only needs to drive the planetary components to rotate. The planetary components, through the connecting parts, convert the rotation into the up and down movement of the heald belt, thus achieving power transmission. Using planetary components for transmission makes the heald belt drive mechanism compact and less susceptible to inertial forces. It occupies less space on the circular loom while achieving high-efficiency power transmission, strong load-bearing capacity, and high operational stability. The planetary components also significantly reduce vibration and noise during power transmission.

[0038] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0039] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] Example 1:

[0044] A type of belt drive mechanism, such as Figures 1 to 5As shown, the system includes a planetary assembly, a limiting member 500, and a connecting member 600. The planetary assembly includes a gear ring 100 and planetary gears 200. The planetary gears 200 are disposed within the gear ring 100, and their outer circumference meshes with the gear ring 100. The limiting member 500 is located on the side of the gear ring 100 facing the heald belt 700 and is fixed to the gear ring 100, providing axial limiting for the planetary gears 200. The limiting member 500 has a through-hole 510, which is strip-shaped and extends radially along the gear ring 100. One end of the connecting member 600 is rotatably connected to the planetary gears 200. One end of the central shaft 220 passes through the sliding hole 510 and extends into the heald belt 700 to connect with it. When the planetary gear 200 rotates around the central shaft 220 of the gear ring 100 within the gear ring 100, the central shaft 220 of the planetary gear 200 drives the connecting member 600 to slide up and down along the sliding hole 510, thereby driving the heald belt 700 connected to the end of the connecting member 600 to move up and down. The up and down movement of the heald belt 700 can drive the heald yarns to move up and down, thereby realizing the up and down movement of the warp threads threaded on the heald yarns. The shuttle drives the weft yarns to pass through the up and down moving warp threads to realize the weaving of the tubular fabric. Of course, it is understood that in other embodiments, the limiting member may not be provided, because the heald belt can only move vertically, and the connecting member can also be guided and limited.

[0045] This invention connects the two ends of the connector 600 to the planetary gear 200 and the heald belt 700, respectively. During the operation of the circular loom, when the planetary gear 200 rotates around the central axis 220 of the gear ring 100, the central axis 220 of the planetary gear 200 drives the connector 600 to slide up and down along the sliding hole 510. This, in turn, drives the heald belt 700 connected to the end of the connector 600 to move up and down. The up and down movement of the heald belt 700 drives the heald yarns to move up and down, thereby realizing the up and down movement of the warp threads threaded on the heald yarns. In other words, by setting the drive mechanism for driving the heald belt 700 to move up and down in a structure where the planetary assembly, the limiting member 500, and the connector 600 cooperate, replacing the swing arm, the circular loom only needs to drive the planetary assembly to rotate. The planetary assembly, through the cooperation of the connector 600 and the sliding hole 510 on the limiting member 500, converts the rotation into up and down movement, thereby driving the heald belt 700 to move up and down, thus realizing the transmission of power. The use of planetary components for transmission makes the heald belt drive mechanism compact and less susceptible to inertial forces. It occupies less space on the circular loom, yet can transmit power efficiently. It has a strong load-bearing capacity and high operational stability. The planetary components can greatly reduce vibration and noise during power transmission.

[0046] like Figure 2 and Figure 3As shown, in this embodiment, the connector 600 includes a vertically arranged connecting rod 610 and an output rod 620. The connecting rod 610 and the output rod 620 are separate structures. The two ends of the connecting rod 610 are an input end 611 and an output end 612, respectively. The input end 611 of the connecting rod 610 is rotatably connected to the central shaft 220 of the planetary gear 200. The output end 612 of the connecting rod 610 is rotatably connected to the output rod 620. The end of the output rod 620 away from the connecting rod 610 passes through the sliding hole 510 and extends into the heald belt 700 to connect with the heald belt 700. When the planetary gear 200 rotates within the gear ring 100, as the planetary gear 200 meshes with the gear ring 100 at different positions, the planetary gear 200 rotates on its own axis while revolving around the central axis 220 of the gear ring 100. This, in turn, drives the connecting rod 610, which is rotatably connected to the planetary gear 200, to rotate and displace around the central axis 220 of the planetary gear 200. Because the output end 612 of the connecting rod 610 is rotatably connected to the output rod 620, the output rod 620 does not rotate; it only displaces vertically under the limitation of the sliding hole 510 extending vertically, thereby driving the heald belt 700 to move up and down. By setting the connecting rod 610 and the output rod 620 to a rotatably connected structure, the output rod 620 can only displace vertically along the sliding hole 510 and will not rotate with the connecting rod 610 and the planetary gear 200. This avoids continuous wear between the output rod 620 and the heald belt 700 due to continuous rotation, thus extending the service life of the heald belt 700 and the connecting member 600.

[0047] In this embodiment, the planetary gear 200 includes a gear body 210 and a central shaft 220, which are integrally formed. The outer periphery of the gear body 210 is used to mesh with the gear ring 100. The central shaft 220 passes through the center of the gear body 210 and protrudes from both sides of the gear body 210. The central shaft 220 of the planetary gear 200 passes through the input end 611 of the connecting rod 610 to rotatably connect with the connecting rod 610. To prevent the input of the connecting rod 610... End 611 is freely disengaged from planetary gear 200 along the axial direction of central shaft 220. In this embodiment, a stop groove 221 is provided on the outer periphery of central shaft 220. A stop spring 222 extending out of stop groove 221 is engaged in stop groove 221. When planetary gear 200 and connecting rod 610 are assembled, stop spring 222 is located on the side of connecting rod 610 away from wheel body 210 to prevent connecting rod 610 from disengaging from planetary gear 200, ensuring stable transmission between the two. An annular rib 230 is also provided on central shaft 220, surrounding central shaft 220. The annular rib 230 is located on the side of connecting rod 610 facing wheel body 210 to reserve a gap between the end faces of connecting rod 610 and wheel body 210, avoiding excessive wear due to contact between the end faces of connecting rod 610 and wheel body 210, and extending the service life of wheel body 210 and connecting rod 610. That is, the annular rib 230 and the stop spring 222 are located on both sides of the connecting rod 610 to axially limit the connecting rod 610, thereby preventing excessive wear between the end faces of the connecting rod 610 and the wheel body 210, and also preventing the connecting rod 610 from freely disengaging from the central shaft 220 of the planetary gear 200, ensuring stable transmission between the two. Of course, it is understood that in another embodiment, the annular rib can also be provided on the end face of the wheel body facing the connecting rod.

[0048] like Figure 3 As shown, in this embodiment, the output rod 620 passes through the through hole of the output end 612. A first bearing 630 is provided between the output rod 620 and the connecting rod 610. The inner ring of the first bearing 630 is sleeved on the outside of the output rod 620, and the outer ring of the first bearing 630 is embedded in the through hole to abut against the connecting rod 610, so that the output rod 620 and the connecting rod 610 are rotatably connected through the first bearing 630. The first bearing 630 can ensure the coaxiality of the through hole and the output rod 620, ensure that the two maintain stable relative rotation, and at the same time reduce the wear between the output rod 620 and the connecting rod 610, thus extending the service life.

[0049] In this embodiment, as Figure 5As shown, the planetary assembly also includes an input shaft 300 and a transmission rod 400. The input shaft 300 is coaxially arranged with the gear ring 100. One end of the transmission rod 400 is vertically fixed to the end of the input shaft 300, and the other end of the transmission rod 400 is rotatably connected to the central shaft 220 of the planetary gears 200, so that the input shaft 300 can drive the planetary gears 200 to rotate within the gear ring 100 via the transmission rod 400. When the input shaft 300 rotates around its axis, the transmission rod 400 fixed to the end of the input shaft 300 rotates together with the input shaft 300, thereby driving the planetary gears 200 rotatably connected to the end of the transmission rod 400 to rotate around the central shaft 220 of the gear ring 100.

[0050] like Figure 3 As shown, in order to reduce the mutual wear between the transmission rod 400 and the planetary gear 200 when they rotate relative to each other, a second bearing 420 is installed between the transmission rod 400 and the central shaft 220 of the planetary gear 200 in this embodiment. The transmission rod 400 is provided with a mounting hole 410. The outer ring of the second bearing 420 is fitted into the mounting hole 410, and the inner ring of the second bearing 420 is sleeved on the central shaft 220 of the planetary gear 200, so that the transmission rod 400 and the central shaft 220 of the planetary gear 200 are rotatably connected to the transmission rod 400 through the second bearing 420. To prevent the second bearing 420 from dislodging from the mounting hole 410 and to ensure stable transmission of the second bearing 420, this embodiment provides annular limiting ribs 411 and annular limiting grooves 412 at both ends of the inner wall of the mounting hole 410. A limiting snap ring 413 is embedded in the annular limiting groove 412. When the transmission rod 400 and the central shaft 220 of the planetary gear 200 are in the assembled state, the limiting snap ring 413 and the annular limiting ribs 411 are located on both sides of the second bearing 420 to axially limit the second bearing 420.

[0051] like Figure 1 As shown, in this embodiment, the limiting member 500 and the gear ring 100 are locked together by screws, which facilitates the installation and disassembly of the limiting member 500 and the gear ring 100. When it is necessary to repair or replace the internal parts of the planetary assembly, the screws can be removed to separate the limiting member 500 and the gear ring 100, which is convenient for operation.

[0052] Example 2:

[0053] The difference between this embodiment and Embodiment 1 is that, Figure 6As shown, in this embodiment, the output rod 620 and the connecting rod 610 can be fixed together by a locking structure or can be integrally set. Preferably, the output rod 620 and the connecting rod 610 are integrally set so that the output rod 620 is vertically fixed to the output end 612 of the connecting rod 610, and the axial section of the output rod 620 is circular. By setting the axial section of the output rod 620 to be circular, the output rod 620 can slide and rotate within the sliding hole 510 and the heald belt. When the planetary gear 200 rotates within the gear ring 100, the connecting rod 610 rotates around the central axis 220 of the planetary gear 200, thereby driving the output rod 620 at the end of the connecting rod 610 to slide up and down and rotate within the sliding hole 510, thereby driving the heald belt 700 to move up and down. There is no need to assemble the output rod 620 and the connecting rod 610, simplifying the structure of the connector 600.

[0054] Example 3:

[0055] The difference between this embodiment and Embodiment 1 is that this embodiment uses a sun gear instead of the transmission rod in Embodiment 1. The sun gear is coaxially fixed to the end of the input shaft to drive it. The sun gear meshes with the planet gears to drive the planet gears to rotate around the input shaft within the gear ring. The sun gear drives the planet gears through meshing with them, resulting in stable and reliable transmission.

[0056] Example 4:

[0057] like Figure 7 As shown, the difference between this embodiment and Embodiment 1 is that in this embodiment, the outer ring is a chain ring 800, and the chain ring 800 is provided with a chain hole 810. When the planetary gear 200 revolves with the input shaft 300, the gear teeth are inserted into the chain hole 810 to mesh with the chain ring 800 at different positions, so as to realize the rotation of the planetary gear 200.

[0058] Example 5:

[0059] like Figure 8 and Figure 9As shown, the difference between this embodiment and Embodiment 1 is that, in this embodiment, the heald belt drive mechanism includes a back plate 900 for passing through the input shaft 300. The heald belt drive mechanism is fixed to the circular loom via the back plate 900. The planetary assembly also includes a conveyor belt 240, a drive wheel 250, and a driven wheel 260. The drive wheel 250 is fixed to the back plate and sleeved on the input shaft 300 so that the input shaft 300 can rotate within the drive wheel 250. The driven wheel 260 is fixed to the planetary gear 200 to be linked with the planetary gear 200. A transmission rod is fixed to the end of the input shaft 300. The planetary gear 200 is rotatably connected to the end of the transmission rod 400 away from the input shaft 300. The drive wheel 250 and the driven wheel 260 together tension the conveyor belt 240. The end of the connector 600 is fixed to the central axis of the planetary gear 200. When the input shaft 300 drives the planetary gear 200 to revolve via the transmission rod 400, the tensioned conveyor belt 240 drives the driven wheel 260 to rotate, which in turn drives the planetary gear 200 to rotate. The rotating planetary gear 200 drives the connecting member 600 to rotate, so that the output rod 620 at the end of the connecting member 600 remains vertically movable. The revolution and rotation of the planetary gear 200 ensure that the connecting member 600 can only output vertical displacement to the heald belt, resulting in smooth transmission. At the same time, because the rotation of the planetary gear 200 is achieved through the transmission belt 240, transmission dead points can be avoided during the transmission process, making the transmission more stable and reliable.

[0060] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A belt drive mechanism, characterized in that, include: The planetary assembly includes an input shaft and planetary gears. The input shaft is connected to the planetary gears to drive the planetary gears to revolve around the input shaft and rotate on their own axis. One end of the connector is connected to the central axis of the planetary gears, and the other end is threaded onto the heald belt. The rotating planetary gears drive the heald belt to reciprocate up and down through the connector inserted into the heald belt.

2. The belt drive mechanism according to claim 1, characterized in that: The connector includes a connecting rod and an output rod. The output rod passes through the heald belt. The connecting rod includes an input end and an output end. The input end is rotatably connected to the planetary gear, and the output end is rotatably connected to the output rod.

3. The belt drive mechanism according to claim 2, characterized in that: The planetary gear includes an integrally formed gear body and a central shaft. The central shaft passes through the input end to be rotatably connected to the connecting rod. A stop spring is engaged on the central shaft to prevent the connecting rod from disengaging from the planetary gear.

4. The belt drive mechanism according to claim 3, characterized in that: The wheel or the central shaft is also provided with an annular rib that surrounds the central shaft. The annular rib and the stop spring are located on both sides of the connecting rod to axially limit the connecting rod.

5. A belt drive mechanism according to claim 2, characterized in that: The output rod passes through the output end to be rotatably connected to the connecting rod, and the output rod and the output end are rotatably connected by a first bearing.

6. The belt drive mechanism according to claim 1, characterized in that: The connector includes a connecting rod and an output rod vertically fixed to the end of the connecting rod. The output rod has a circular cross-section and passes through the heddle belt. The end of the connecting rod away from the output rod is rotatably connected to the planetary gear.

7. The belt drive mechanism according to claim 1, characterized in that: The planetary assembly also includes an outer ring surrounding the outer periphery of the planetary gears. When the input shaft drives the planetary gears to revolve within the outer ring, the outer ring meshes with the planetary gears, causing the planetary gears to rotate.

8. The belt drive mechanism according to claim 7, characterized in that: A transmission rod is fixed to the end of the input shaft, and the transmission rod is rotatably connected to the central axis of the planetary gears; or, a sun gear is fixed to the end of the input shaft, and the sun gear meshes with the planetary gears.

9. A belt drive mechanism according to claim 7, characterized in that: A limiting member is fixed on the outer ring, and the limiting member has a sliding hole that extends vertically along the radial direction of the outer ring. The connecting member passes through the sliding hole and is inserted into the heddle belt.

10. A belt drive mechanism according to claim 1, characterized in that: The planetary assembly also includes a conveyor belt and a drive wheel and a driven wheel for tensioning the conveyor belt. The drive wheel is fixed to the back plate and sleeved on the input shaft. The driven wheel is fixed to the planetary gears. A transmission rod is fixed to the end of the input shaft. The planetary gears are rotatably connected to the transmission rod. When the input shaft drives the planetary gears to revolve through the transmission rod, the conveyor belt drives the planetary gears to rotate through the driven wheel. The connecting member is fixed to the planetary gears.

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