Gear transmission clutch device of warp knitting machine

Abstract

The utility model discloses a gear transmission clutch device of a warp knitting machine. The gear transmission clutch device comprises a shaft and a carrier gear installed on the shaft. One end of the shaft is a fixed end, and the other end of the shaft is a free end; the middle position of the shaft is rotatably sleeved with a shaft sleeve, a first step used for installing a carrier gear is arranged on the peripheral face of the shaft sleeve, and the carrier gear is rotatably installed on the shaft sleeve through a bearing; a radial threaded hole is formed in the shaft sleeve, a spiral guide groove extending in the axial direction is formed in the peripheral face of the shaft, a screw is screwed into the radial threaded hole, and the inner end of the screw is movably inserted into the guide groove. A handle is further fixedly connected to the outer wall of the shaft sleeve, and the shaft sleeve can rotate and drive the inner end of the screw to slide along the guide groove by shifting the handle. The gear transmission clutch device of the warp knitting machine has the advantages of being convenient and rapid to mesh and disengage, high in efficiency and stable and reliable in performance.

Description

Technical Field

[0001] This utility model relates to the field of warp knitting machines, and in particular to a gear transmission clutch device for warp knitting machines. Background Technology

[0002] In warp knitting machines, a common transmission structure uses a bridge gear to achieve transmission between gear A and gear B. Furthermore, due to operational requirements, the bridge gear needs to be able to switch between meshing and disengagement states, necessitating the addition of a clutch device. Existing gear transmission clutch devices typically include a bushing and a bridge gear rotatably mounted on the bushing via bearings. A bolt is coaxially inserted into the central bore of the bushing, with a free head and a fixed tail. The bolt head limits the outer shaft end of the bushing, while the tail end is locked to a connecting plate via a nut. A spring is also fitted onto the bolt, connecting the bushing and the connecting plate. During operation, the bushing and the gear shafts of gears A and B remain parallel to each other, with the bushing positioned between gears A and B. By screwing the bolt in or out of the connecting plate and utilizing the compression and extension of the spring, the axial movement of the bridge gear is controlled, thereby achieving the switching between meshing and disengagement states between the bridge gear and gears A and B. However, existing control methods have many inconveniences, such as the need for frequent manual adjustment of bolts, which is complicated and time-consuming; in addition, changes in the elasticity of the spring may lead to unstable control accuracy, further increasing the difficulty of operation. Utility Model Content

[0003] The purpose of this invention is to provide a gear transmission clutch device for a warp knitting machine.

[0004] The technical solution to achieve the purpose of this utility model is:

[0005] A gear transmission clutch device for a warp knitting machine includes a shaft and a bridge gear mounted on the shaft;

[0006] One end of the shaft is a fixed end, and the other end is a free end;

[0007] A bushing is rotatably fitted at the middle position of the shaft. The outer circumferential surface of the bushing is provided with a first step for mounting the bridge gear. The bridge gear is rotatably mounted on the bushing via a bearing.

[0008] The bushing is provided with a radial threaded hole, and the outer circumferential surface of the shaft is provided with a spiral guide groove extending along the axial direction. A screw is screwed into the radial threaded hole, and the inner end of the screw is movably inserted into the guide groove. A handle is also fixedly connected to the outer wall of the bushing. Turning the handle can rotate the bushing and drive the inner end of the screw to slide along the guide groove.

[0009] This invention allows the bushing, bearing, and intermediate gear to rotate together on the shaft by turning a handle. Simultaneously, a screw fits within the radial threaded hole of the bushing, and the inner end of the screw is movably inserted into the guide groove. Therefore, as the bushing rotates, the inner end of the screw reciprocates along the guide groove, allowing stable axial movement of the intermediate gear by turning the handle. This enables the intermediate gear to switch between disengaged and engaged states with gears A and B. The gear transmission clutch device of this invention for warp knitting machines has the advantages of convenient and rapid engagement and disengagement, high efficiency, and stable and reliable performance.

[0010] Furthermore, a locking nut is provided on the outer end of the screw, and the screw is locked onto the bushing by the locking nut, which makes the screw more reliably fixed.

[0011] Furthermore, a second step is provided on the outer circumferential surface of the free end of the shaft, and one end of the guide groove communicates with the second step; a return spring is fitted at the position of the second step on the shaft, the diameter of the shaft < the inner diameter of the return spring < the diameter of the bushing, and a stop assembly is also installed at the free end of the shaft to prevent the return spring from disengaging. Through the restoring force of the return spring, the bushing drives the screw and the intermediate gear to reset, allowing the intermediate gear to return from the disengagement device to the meshing state.

[0012] Furthermore, the gear transmission clutch device of the warp knitting machine also includes a retaining ring, and a third step for installing the retaining ring is provided on the outer circumferential surface of the fixed end of the shaft; the fixed end of the shaft is provided with a connecting plate, which is fixedly connected to the frame of the warp knitting machine; a slot is opened on the connecting plate, and the fixed end of the shaft passes through the central hole of the retaining ring and the slot in sequence, and is locked to the connecting plate by a locking member.

[0013] Furthermore, the gear transmission clutch device of the warp knitting machine also includes a bolt. The shaft has an axial hole through which the tail of the bolt passes. A washer is fitted onto the bolt. The head of the bolt and the washer together serve as the stop assembly. The tail of the bolt passes sequentially through the axial hole of the shaft and the slot of the connecting plate, and is locked to the connecting rod by the locking member at the tail end. In this case, the locking member can be a conventional nut structure. Preferably, the slot of the connecting plate can be an elongated hole. In this case, the bolt can be moved to a suitable position along the length of the slot, and then positioned by the action of the locking member, the bolt, and the washer, thereby adjusting the axial position of the shaft and allowing the intermediate gear to adapt to gears A and B of different sizes. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of the gear transmission clutch device of the warp knitting machine according to the present invention; where the arrows represent the direction of the handle's movement;

[0015] Figure 2 The gear transmission clutch device of the warp knitting machine described in this utility model, when the bridge gear is in the meshing state, along... Figure 1 Schematic diagram of the cross-sectional structure of the middle CC line;

[0016] Figure 3 The gear transmission clutch device of the warp knitting machine described in this utility model, when the bridge gear is disengaged, moves along... Figure 1 Schematic diagram of the cross-sectional structure of the CC line.

[0017] Figure 4 This is a schematic diagram of the connecting rod described in this utility model.

[0018] Figure 5 This is a schematic diagram of the structure of the shaft described in this utility model. Detailed Implementation

[0019] The preferred embodiment of the gear transmission clutch device of the warp knitting machine of this utility model is described in detail below with reference to the accompanying drawings.

[0020] Combination Figures 1-3 and Figure 5 A gear transmission clutch device for a warp knitting machine includes a shaft 10 and a bridge gear 20 mounted on the shaft 10;

[0021] One end of the shaft 10 is a fixed end, and the other end is a free end;

[0022] A bushing 30 is rotatably fitted at the middle position of the shaft 10. The outer circumferential surface of the bushing 30 is provided with a first step for mounting the bridge gear 20. The bridge gear 20 is rotatably mounted on the bushing 30 through a bearing 40.

[0023] The bushing 30 is provided with a radial threaded hole, and the outer circumferential surface of the shaft 10 is provided with a spiral guide groove 11 extending axially. A screw 50 is screwed into the radial threaded hole, and the inner end of the screw 50 is movably inserted into the guide groove 11. A handle 60 is also fixedly connected to the outer wall of the bushing 30. Moving the handle 60 can rotate the bushing 30 and drive the inner end of the screw 50 to slide along the guide groove 11.

[0024] During operation, the shaft 10 is parallel to the gear shafts of gears A 70 and B 80, and the bridge gear 20 is located between gears A 70 and B 80 and meshes with gears A 70 and B 80.

[0025] The bridge gear 20, bearing 40, bushing 30, and handle 60 of this invention are assembled into a coupling. By turning the handle 60, the coupling can rotate on the shaft 10. Simultaneously, since a screw 50 fits in the radial threaded hole of the bushing 30, and the inner end of the screw 50 is movably inserted into the guide groove 11, the rotation of the coupling on the shaft 10 causes the inner end of the screw 50 to slide along the guide groove 11. When the coupling slides outward to a set distance, the bridge gear 20 in the coupling separates axially from gears A 70 and B 80, achieving disengagement. Conversely, when the sliding direction of the coupling is reversed, the coupling returns along the guide groove 11 on the shaft 10, and the bridge gear 20 re-engages with gears A 70 and B 80, achieving engagement. The gear transmission clutch device of this invention for a warp knitting machine has the advantages of convenient and rapid engagement and disengagement, high efficiency, and stable and reliable performance.

[0026] like Figure 2 , Figure 3 As shown, a locking nut 90 is provided on the outer end of the screw 50. The screw 50 is locked onto the bushing 30 by the locking nut 90, which makes the fixing of the screw 50 more reliable. Of course, the screw 50 and the locking nut 90 can also be replaced by existing bolts.

[0027] Combination Figure 2 , Figure 3 and Figure 5 A second step 12 is provided on the outer circumferential surface of the free end of the shaft 10, and one end of the guide groove 11 communicates with the second step 12. A return spring 100 is fitted at the position of the second step 12 of the shaft 10. The diameter of the shaft 10 < the inner diameter of the return spring 100 < the diameter of the bushing 30. A stop assembly 110 is also installed at the free end of the shaft 10 to prevent the return spring 100 from disengaging. Through the restoring force of the return spring 100, the bushing 30 drives the screw 50 and the bridge gear 20 to reset, so that the bridge gear 20 returns from the disengagement device to the engagement state. Of course, the gear transmission clutch device of the warp knitting machine of this utility model can also omit the return spring 100 and the second step 12, and instead achieve reset by moving the handle 60.

[0028] Combination Figures 1-3 The fixing structure of the shaft 10 and the connecting plate 130 can be as follows: the outer circumferential surface of the fixed end of the shaft 10 is provided with a third step 13 for installing the retaining ring 120; the fixed end of the shaft 10 is provided with a connecting plate 130, which is fixedly connected to the frame of the warp knitting machine.

[0029] The connecting plate 130 has a slot 131. The fixed end of the shaft 10 passes through the center hole of the retaining ring 120 and the slot 131 in sequence, and is locked to the connecting plate 130 by the locking member 140. Further, as... Figure 2 , Figure 3 As shown, the shaft 10 has an axial hole, and a bolt 150 is fixedly installed in the axial hole. A washer is fitted on the bolt 150. The head of the bolt 150 and the washer together form the stop assembly 110. The tail of the bolt 150 passes through the axial hole of the shaft 10 and the slot 131 of the connecting plate 130 in sequence, and is locked and fixed to the connecting rod 130 by the locking member 140 at the tail end. At this time, the locking member 140 can be a conventional nut structure. Preferably, as shown... Figures 1-4 As shown, the slot 131 of the connecting plate 130 can be an elongated hole. In this case, the bolt 150 can be moved to a suitable position along the length of the slot 131. Then, the locking member 140, the bolt 150, and the washer are used for positioning, thereby adjusting the axial position of the shaft 10 so that the bridge gear 20 can adapt to gears A 70 and B 80 of different sizes. Of course, the fixed connection structure between the fixed end of the shaft 10 and the connecting plate 130 can be, but is not limited to, the specific structure shown in the figure.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent process transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A gear transmission clutch device for a warp knitting machine, comprising a shaft and a bridge gear mounted on the shaft; one end of the shaft is a fixed end and the other end is a free end; characterized in that: A bushing is rotatably fitted at the middle position of the shaft. The outer circumferential surface of the bushing is provided with a first step for mounting the bridge gear. The bridge gear is rotatably mounted on the bushing via a bearing. The bushing is provided with a radial threaded hole, and the outer circumferential surface of the shaft is provided with a spiral guide groove extending along the axial direction. A screw is screwed into the radial threaded hole, and the inner end of the screw is movably inserted into the guide groove. A handle is also fixedly connected to the outer wall of the bushing. Turning the handle can rotate the bushing and drive the inner end of the screw to slide along the guide groove.

2. The gear transmission clutch device for a warp knitting machine according to claim 1, characterized in that: The screw has a locking nut on its outer end, and the screw is locked onto the bushing by the locking nut.

3. The gear transmission clutch device for a warp knitting machine according to claim 1, characterized in that: A second step is provided on the outer circumferential surface of the free end of the shaft, and one end of the guide groove is connected to the second step; a return spring is fitted at the position of the second step of the shaft, the diameter of the shaft is less than the inner diameter of the return spring and the diameter of the bushing, and a stop assembly is also installed at the free end of the shaft to prevent the return spring from coming out.

4. The gear transmission clutch device for a warp knitting machine according to claim 3, characterized in that: It also includes a retaining ring, and a third step for installing the retaining ring is provided on the outer circumferential surface of the fixed end of the shaft; the fixed end of the shaft is provided with a connecting plate, which is fixedly connected to the frame of the warp knitting machine; the connecting plate has a slot, and the fixed end of the shaft passes through the center hole of the retaining ring and the slot in sequence, and is locked to the connecting plate by a locking member.

5. The gear transmission clutch device for a warp knitting machine according to claim 4, characterized in that: It also includes a bolt, the shaft has an axial hole for the tail of the bolt to pass through, a washer is also fitted on the bolt, the head of the bolt and the washer together serve as the stop assembly, the tail of the bolt passes through the axial hole of the shaft and the slot of the connecting plate in sequence, and is locked and fixed with the connecting rod by the locking member at the tail end.

6. The gear transmission clutch device for a warp knitting machine according to claim 4, characterized in that: The slot in the connecting plate can be an elongated hole.

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