Transmission mechanism for warp knitting machine and warp knitting machine

Abstract

The utility model relates to the technical field of warp knitting machine equipment, in particular to a transmission mechanism for a warp knitting machine and the warp knitting machine, the transmission mechanism comprises a belt wheel and a rack, a rotating shaft is rotatably arranged on the rack, the belt wheel comprises a shaft hub and a wheel disc arranged on the shaft hub, a belt groove matched with a belt is arranged on the peripheral surface of the wheel disc, and the belt groove is arranged on the rack. The transmission mechanism for the warp knitting machine and the warp knitting machine are characterized in that the belt wheel is arranged on the shaft hub, the pressing bolt is arranged on the pressing tongue in an abutting mode, the rotating shaft is matched with the shaft hub, the shaft hub is arranged on the rotating shaft in a sleeved mode, and an enclasping mechanism used for enclasping the belt wheel on the rotating shaft is arranged at one end of the shaft hub. By arranging the protrusions and the grooves, it is guaranteed that certain torque is transmitted between the belt wheel and the rotating shaft, meanwhile, the rotating shaft and the belt wheel are rapidly installed, convenience and rapidness are achieved, and the problems that a key groove is formed in the rotating shaft, a key groove is formed in the driving belt wheel, and the two key grooves are opposite and provided with key blocks are solved.

Description

Technical Field

[0001] This utility model relates to the field of warp knitting machine equipment technology, and in particular to a transmission mechanism for a warp knitting machine and the warp knitting machine thereof. Background Technology

[0002] The pulley drive mechanism of a warp knitting machine is a crucial component driving the movement of all parts. It primarily uses a motor to drive the drive pulley, which in turn drives the driven pulley via a transmission belt, thus transmitting power to the various working parts of the machine. The driven pulley is mounted on a shaft on the frame. Both the shaft and the pulley have keyways. A key block is placed between the two keyways to secure the pulley and the shaft. The machining of the keyways affects the strength of the shaft, especially for smaller shaft diameters, and also limits the load on the shaft. Utility Model Content

[0003] The technical problem to be solved by this utility model is: in order to solve the problem that the keyway on the rotating shaft and the drive pulley are both keyways, and the two keyways are opposite each other and a key block is placed to fix the drive pulley and the rotating shaft, the rotation of the keyway affects the strength of the rotating shaft, especially the smaller the diameter of the rotating shaft, the greater the impact, and the load on the rotating shaft is also a problem. Now, a transmission mechanism for a warp knitting machine and the warp knitting machine thereof are provided.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a transmission mechanism for a warp knitting machine, including a pulley and a frame, a rotating shaft rotatably mounted on the frame, the pulley including a hub and a disc disposed on the hub, a belt groove matching the belt on the outer circumferential surface of the disc, the rotating shaft matching the hub, the hub being sleeved on the rotating shaft, a clamping mechanism for clamping the pulley onto the rotating shaft being provided at one end of the hub, the clamping mechanism including a receiving groove disposed at one end of the hub, a pressure tongue with elastic deformation function disposed in the groove along the axial direction of the hub, an arc surface that contacts and matches the rotating shaft being provided at the end of the pressure tongue near the rotating shaft, a protrusion disposed on the arc surface, a groove disposed on the rotating shaft, the protrusion and the groove matching each other, the protrusion being disposed in the groove, a gap being present between the pressure tongue and the groove along the radial direction of the hub, a clamping screw threadedly connected to the hub, one end of the clamping screw abutting against the end of the pressure tongue away from the arc surface, the pressure tongue being located between the clamping screw and the rotating shaft. Compared to existing technologies, this solution uses a clamping mechanism on the pulley hub, with a clamping screw pressing against the pressure tongue, and the cooperation of the protrusion and groove to ensure that a certain torque is transmitted between the pulley and the shaft. At the same time, it allows for quick and easy installation of the shaft and pulley.

[0005] To increase the friction between the pulley and the shaft, in some preferred embodiments, the clamping mechanism further includes a first knurling pattern on the inner circumferential wall of the shaft hub, with the first knurling pattern and the pressure tongue positioned opposite each other. By providing the first knurling pattern on the shaft hub, the friction during contact with the shaft is increased, ensuring a stable and reliable clamping between the pulley and the shaft.

[0006] To ensure that the pulley grips securely and reliably, in some preferred embodiments, a second knurling is provided on the screen of the pressure tongue.

[0007] To ensure stable and reliable pulley clamping, in some preferred embodiments, the clamping mechanism has two sets and is centrally symmetrically arranged at both ends of the hub.

[0008] To ensure a stable and reliable fit between the protrusion and the groove, in some preferred embodiments, the cross-section of the protrusion is an arc-shaped structure.

[0009] In order to facilitate the protrusion of the tongue depressor entering the rotating shaft, in some preferred embodiments, one end of the rotating shaft is provided with a guide surface for guiding the protrusion to the groove. The length of the protrusion along the radial direction of the rotating shaft is less than the length of the guide surface along the radial direction of the rotating shaft. The guide surface is arranged opposite to the groove along the axial direction of the rotating shaft.

[0010] A warp knitting machine is equipped with a transmission mechanism for warp knitting machines as described above.

[0011] The beneficial effects of this utility model are as follows: This utility model provides a transmission mechanism for a warp knitting machine. During operation, the machine utilizes a clamping mechanism on the pulley's hub. A clamping screw abuts against the pressure tongue, and the engagement of the protrusion and groove ensures the transmission of a certain torque between the pulley and the shaft. Simultaneously, it allows for quick and easy installation of the shaft and pulley. This avoids the problems associated with keyways on the shaft and drive pulley, where keyways are opposite each other and key blocks are placed to fix the drive pulley and shaft. The machining of keyways during rotation affects the strength of the shaft, especially as the shaft diameter decreases, and the load on the shaft is also limited. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a front view of Embodiment 1 of this utility model;

[0014] Figure 2 This is a left view of Embodiment 1 of this utility model;

[0015] Figure 3 This is a right view of Embodiment 1 of this utility model;

[0016] Figure 4This is a front view of the pulley in Embodiment 1 of this utility model;

[0017] Figure 5 This is a left view of the pulley in Embodiment 1 of this utility model;

[0018] Figure 6 This is a right view of the pulley in Embodiment 1 of this utility model;

[0019] Figure 7 This is a front view of Embodiment 2 of this utility model;

[0020] Figure 8 This is a left view of Embodiment 2 of this utility model.

[0021] In the diagram: 1. Pulley, 2. Frame, 3. Shaft, 4. Hub, 5. Wheel, 6. Belt groove, 7. Receiving groove, 8. Pressure tongue, 9. Protrusion, 10. Groove, 11. Clamping screw, 12. First knurling, 13. Guide surface. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the embodiments:

[0023] This utility model is not limited to the following specific embodiments. Those skilled in the art can implement this utility model using various other specific embodiments based on the disclosed content. Any modifications or alterations to the design structure and concept of this utility model also fall within the protection scope of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this utility model can be combined with each other.

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., 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.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 based on the specific circumstances.

[0026] like Figure 1-6 As shown, a transmission mechanism for a warp knitting machine includes a pulley 1 and a frame 2. A rotating shaft 3 is rotatably mounted on the frame 2. The pulley 1 includes a hub 4 and a disc 5 disposed on the hub 4. A belt groove 6 matching the belt is provided on the outer circumferential surface of the disc 5. The rotating shaft 3 matches the hub 4, and the hub 4 is sleeved on the rotating shaft 3. A clamping mechanism is provided at one end of the hub 4 to clamp the pulley 1 onto the rotating shaft 3. The clamping mechanism includes a receiving groove 7 disposed at one end of the hub 4. The groove 7 is located along the axial direction of the hub 4. A pressure tongue 8 with elastic deformation function is provided. The end of the pressure tongue 8 near the rotating shaft 3 is provided with an arc surface that contacts and matches the rotating shaft 3. A protrusion 9 is provided on the arc surface. A groove 10 is provided on the rotating shaft 3. The protrusion 9 and the groove 10 match each other. The protrusion 9 is located in the groove 10. There is a gap between the pressure tongue 8 and the groove 10 in the radial direction of the shaft hub 4. A clamping screw 11 is threaded on the shaft hub 4. One end of the clamping screw 11 abuts against the end of the pressure tongue 8 away from the arc surface. The pressure tongue 8 is located between the clamping screw 11 and the rotating shaft 3.

[0027] The clamping mechanism also includes a first knurling 12 disposed on the inner peripheral wall of the hub 4. The first knurling 12 and the pressure tongue 8 are disposed opposite to each other. The pressure tongue 8 is provided with a second knurling, that is, the first knurling 12 and the second knurling are disposed opposite to each other, which greatly increases the friction when in contact with the rotating shaft 3. There are two sets of clamping mechanisms and they are centrally symmetrically disposed at both ends of the hub 4, which ensures that the clamping between the pulley 1 and the rotating shaft 3 is stable and reliable.

[0028] The cross-section of the protrusion 9 is arc-shaped. Similarly, since the groove 10 and the protrusion 9 are matched, the groove 10 is also arc-shaped. One end of the rotating shaft 3 is provided with a guide surface 13 for guiding the protrusion 9 to the groove 10. The length of the protrusion 9 along the radial direction of the rotating shaft 3 is less than the length of the guide surface 13 along the radial direction of the rotating shaft 3. The guide surface 13 is positioned relative to the groove 10 along the axial direction of the rotating shaft 3. The depth of the groove 10 can be very shallow. For example, for a rotating shaft with a diameter of 15cm, the depth of the groove 10 can be about 5mm-8mm. Compared with the depth of the keyway, the depth of the groove 10 is much shallower and will not affect the rotating shaft 3.

[0029] Example 2

[0030] Example 2 is an implementation of Example 1, specifically as follows: Figure 7 and 8 As shown, a warp knitting machine is equipped with a transmission mechanism for warp knitting machines as described above.

[0031] When installing the above-mentioned transmission mechanism for a warp knitting machine and the warp knitting machine, first loosen the clamping screws 11 at both ends, then align the protrusion 9 on the pressure tongue 8 with the guide surface 13, and use a tool to push it against one end of the shaft hub 4 and slowly push it in until the protrusion 9 enters the groove 10. Then tighten the clamping screws 11 on the shaft hub 4 at both ends to complete the installation of the pulley 1.

[0032] During disassembly, first loosen the clamping screws 11 at both ends, and then use a tool to push out the pulley 1 until the pulley 1 and the shaft 3 are separated.

[0033] The above description, based on the preferred embodiments of this utility model, provides inspiration. Those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification but must be determined according to the claims.

Claims

1. A transmission mechanism for a warp knitting machine, comprising a pulley (1) and a frame (2), a rotating shaft (3) being rotatably mounted on the frame (2), the pulley (1) comprising a shaft hub (4) and a pulley disc (5) arranged on the shaft hub (4), a belt groove (6) matching a belt being arranged on an outer circumferential surface of the pulley disc (5), the rotating shaft (3) matching the shaft hub (4), the shaft hub (4) being sleeved on the rotating shaft (3), characterized in that: One end of the shaft hub (4) is provided with a clamping mechanism for clamping the pulley (1) on the rotating shaft (3), the clamping mechanism comprises a containing groove (7) provided at one end of the shaft hub (4), the containing groove (7) is provided with a tongue (8) with elastic deformation function along the shaft hub (4) in the axial direction, one end of the tongue (8) close to the rotating shaft (3) is provided with an arc surface matched with the rotating shaft (3), the arc surface is provided with a protrusion (9), the rotating shaft (3) is provided with a groove (10), the protrusion (9) and the groove (10) are matched, the protrusion (9) is arranged in the groove (10), the tongue (8) and the groove (10) have a gap along the shaft hub (4) in the radial direction, the shaft hub (4) is threadedly connected with a pressing screw (11), one end of the pressing screw (11) abuts against one end of the tongue (8) away from the arc surface, the tongue (8) is located between the pressing screw (11) and the rotating shaft (3).

2. The drive mechanism for a warp knitting machine according to claim 1, characterized in that: The clamping mechanism further comprises a first knurl (12) provided on the inner wall of the shaft hub (4), the first knurl (12) and the tongue (8) are oppositely arranged.

3. The drive mechanism for a warp knitting machine according to claim 2, characterized in that: A second knurl is arranged on the picture on the tongue (8).

4. The drive mechanism for a warp knitting machine according to claim 1, characterized in that: The clamping mechanism has two groups and is centrally symmetrically arranged at two ends of the shaft hub (4).

5. The drive mechanism for a warp knitting machine according to claim 4, characterized in that: The protrusion (9) has an arc-shaped cross section.

6. The drive mechanism for a warp knitting machine according to claim 5, characterized in that: One end of the rotating shaft (3) is provided with a guide surface (13) for guiding the protrusion (9) to the groove (10), the length of the protrusion (9) in the radial direction of the rotating shaft (3) is less than the length of the guide surface (13) in the radial direction of the rotating shaft (3), and the guide surface (13) is arranged in the axial direction of the rotating shaft (3) relative to the groove (10).

7. A warp knitting machine, characterized by: A warp knitting machine with a transmission mechanism as claimed in any one of claims 1-6 is installed.

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