Power transmission and speed reduction device of servo motor direct-driven jacquard machine

Abstract

A power transmission and speed reduction device of a jacquard machine directly driven by a servo motor comprises the servo motor, a cam box and a cam shaft, the front side and the rear side of the lower portion of the cam box are fixed to a pair of cam box fixing bases, and the left side face of the cam box is fixed to the middle of the right side face of a right wall plate of the jacquard machine. The left end of the cam shaft is supported on a right wall plate of the jacquard machine, the middle of the cam shaft is located in a cam box cavity of the cam box, a cam is fixed to the middle of the cam shaft, and the cam shaft is supported on a cam box cover which is fixed to the right side of the cam box and used for shielding the cam box cavity. The servo motor is fixed to the upper portion of the right side of the gearbox, a motor shaft extends leftwards into a gearbox cavity and is connected with a motor shaft gear, the right end of the cam shaft extends to the gearbox and is supported on the lower portion of the gearbox, and a cam shaft reduction gear meshed with the motor shaft gear is fixed to the right end of the cam shaft. The system has the advantages that the convenience of inspection and protection is embodied; a good supporting effect of the motor shaft is embodied, and damage is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of textile machinery, and in particular relates to a power transmission and reduction device of a servo motor directly driven jacquard machine. Background Art

[0002] The jacquard machine can directly produce various patterns on the fabric, and its mechanism of action is to regularly reflect the patterns on the fabric according to the process design requirements. The known driving form of the jacquard machine is driven by a high-speed and low-speed torque motor synchronized with the loom power source. Specifically, a reduction box is arranged between the driving motor and the main shaft, and the driving motor drives the reduction box, which is decelerated by the reduction box and the main shaft connected to it is driven by the final power output shaft of the reduction box. The disadvantages of this driving method have been pointed out by "A power transmission and reduction mechanism of a servo motor direct-driven jacquard machine" recommended by CN112899847B and compensated by this patent.

[0003] The above CN112899847B can objectively embody the two technical effects summarized in paragraphs 0011 to 0012 of its specification, but there are still the following shortcomings: First, since the end of the motor shaft of the servo motor passes through the box cover and extends into the box body cavity of the box body, and the driving gear (also called "motor shaft gear") fixed at the end of the motor shaft is meshed with the primary reduction driven gear fixed at the shaft end of the main transmission shaft (the transmission shaft is essentially the "shaft end of the camshaft") that also extends into the box body cavity, when the driving gear, the primary reduction driven gear, the cam and / or the swing arm are to be inspected and maintained on a daily basis, it is necessary to first remove the servo motor and then The cover of the box body must be removed before the cam set on the first-stage reduction driven gear shaft and the swing arm driven by the cam can be inspected and maintained. However, in most cases, only the aforementioned motor shaft gear and / or the first-stage reduction transmission gear need to be inspected and maintained. Since the cover of the box body also needs to be opened, it is not only cumbersome and complicated, but also almost unnecessary to move the whole body at the same time, because the aforementioned cam and the swing arm have relatively strict requirements on the action. If they are damaged by carelessness, it will affect the effect of the opening action of the heald frame; secondly, since the motor shaft as the output shaft and the driving gear (i.e., "motor shaft gear") thereon are in a cantilever state, it is easy to damage the motor shaft rotation support bearing of the motor shaft. Based on the above factors, it is necessary to make improvements, and the technical solution to be introduced below is produced in this context. Utility Model Content

[0004] The task of the utility model is to provide a power transmission and reduction device of a servo motor direct-driven jacquard machine, which can simplify the convenience of maintenance operations during actual use without opening the cam box when the gear box for driving the cam shaft is to be inspected and maintained, and can make the motor shaft and its rotating support bearing embody a good supporting effect to avoid damage.

[0005] The task of the utility model is accomplished as follows: a power transmission and reduction device of a servo motor directly driven jacquard machine, comprising a servo motor, a cam box and a camshaft, the front and rear sides of the lower part of the cam box are fixed on a pair of cam box fixing seats corresponding to each other front and back, and the left side of the cam box is fixed to the middle of the right side of the right wall plate of the jacquard machine, the left end of the camshaft is rotatably supported on the right wall plate of the jacquard machine through the camshaft left support bearing, the middle part of the camshaft is located in the cam box cavity of the cam box, a cam is fixed to the middle part of the camshaft and is rotatably supported on the cam box through the camshaft middle support bearing. The cam box cover fixed on the right side for shielding the cam box cavity is characterized in that: it also includes a gear box, which is fixed on the right side of the cam box cover, and the servo motor is fixed to the upper right side of the gear box in a horizontal lying state, and the motor shaft of the servo motor extends to the left into the gear box cavity of the gear box and is connected to a motor shaft gear, the right end of the camshaft extends to the gear box and is rotatably supported at the lower part of the gear box through the camshaft right supporting bearing, and a camshaft reduction gear meshing with the motor shaft gear is fixed at the right end of the camshaft and at a position corresponding to the motor shaft gear.

[0006] Further, the motor shaft gear has a motor shaft gear pivot shaft, the motor shaft gear is located in the middle of the motor shaft gear pivot shaft, and the left end of the motor shaft gear pivot shaft is rotatably supported on the cam box cover through the left supporting bearing of the motor shaft gear pivot shaft, and the right end of the motor shaft gear pivot shaft is rotatably supported on the upper part of the gear box through the right supporting bearing of the motor shaft gear pivot shaft, the right end of the motor shaft gear pivot shaft extends outside the gear box cavity of the gear box, and the motor shaft is connected to the right end of the motor shaft gear pivot shaft.

[0007] Furthermore, a pivot shaft hollow cavity is formed at the right end of the motor shaft gear pivot shaft, and axial tensioning grooves are arranged on the cavity wall of the pivot shaft hollow cavity and at intervals around the pivot shaft hollow cavity. The motor shaft is inserted into the pivot shaft hollow cavity and fixedly connected to the right end of the motor shaft gear pivot shaft by a clamp sleeved on the right end of the motor shaft gear pivot shaft.

[0008] Furthermore, a group of servo motor flange fixing holes are provided in a U-shaped distribution on the upper right side of the gear box and at a position corresponding to the left end of the servo motor, and a servo motor fixing flange is formed on the left end face of the servo motor. The servo motor fixing flange is rectangular in shape and has a servo motor fixing flange hole at each of the four corners. Flange fixing screws are provided on the servo motor fixing flange holes, and the flange fixing screws are screwed into the servo motor flange fixing holes to fix the servo motor in a horizontal lying state to the upper right side of the gear box.

[0009] Furthermore, a bearing outer retaining ring is fixed on the right side of the cam box cover and at a position corresponding to the left supporting bearing of the motor shaft gear pivot shaft. The center of the bearing outer retaining ring has a motor shaft gear pivot shaft clearance hole for the left end of the motor shaft gear pivot shaft to pass through. A bearing inner retaining ring is fixed on the left side of the cam box cover and at a position corresponding to the left supporting bearing of the motor shaft gear pivot shaft.

[0010] Furthermore, a reduction gear fixing flange ring is formed on the camshaft and at a central position corresponding to the left side of the camshaft reduction gear, and a camshaft reduction gear fixing step plate is formed at the central right side of the camshaft reduction gear and at a position corresponding to the reduction gear fixing flange ring. Step plate screw holes are provided on the camshaft reduction gear fixing step plate and around the circumferential direction of the camshaft reduction gear fixing step plate at intervals. The step plate screw hole passes from the right side of the camshaft reduction gear fixing step plate to the left side of the camshaft reduction gear and corresponds to the reduction gear fixing flange ring screw hole provided on the reduction gear fixing flange ring. A step plate fixing screw is provided on the step plate screw hole, and the step plate fixing screw is screwed into the reduction gear fixing flange ring screw hole, thereby fixing the camshaft reduction gear to the right end of the camshaft.

[0011] Further, the cam includes a first cam I, a second cam II, a third cam III and a fourth cam IV, the first cam I and the second cam II constitute an integral structure, and the third cam III and the fourth cam IV constitute an integral structure and are located on the left side of the first cam I, the first cam I, the second cam II, the third cam III and the fourth cam IV are driven by the rotation of the camshaft, and the first cam I and the second cam II drive the first swing arm I, while the third cam III and the fourth cam IV drive the second swing arm II, the first swing arm I is fixed to the right end face of the first swing arm shaft I extending into the cam box cavity, and the right end of the first swing arm shaft I is connected to the right support of the first swing arm shaft The second swing arm shaft II is rotatably supported on the right wall plate of the jacquard machine by a bearing, the second swing arm II is fixed to the right end face of the second swing arm shaft II extending into the cam box cavity, and the right end of the second swing arm shaft II is rotatably supported on the right wall plate of the jacquard machine through the second swing arm shaft supporting bearing, the left end of the second swing arm shaft II extends to the left side of the right wall plate of the jacquard machine and is constructed as a horizontal cantilever end, wherein the second swing arm shaft II is a hollow shaft having a hollow cavity passing from the left end to the right end, the right end of the first swing arm shaft I passes through the hollow cavity and extends into the cam box cavity, and the left end of the first swing arm shaft I is rotatably supported on the left wall plate of the jacquard machine corresponding to the left side of the right wall plate of the jacquard machine through the first swing arm shaft left supporting bearing.

[0012] Further, a first swing arm front roller I is rotatably provided at the lower front end of the first swing arm I through the first swing arm front roller shaft I, and a first swing arm rear roller I is rotatably provided at the lower rear end of the first swing arm I through the first swing arm rear roller shaft I, the first swing arm front roller I corresponds to and cooperates with the rim of the first cam I, and the first swing arm rear roller I corresponds to and cooperates with the rim of the second cam II; a second swing arm front roller II is rotatably provided at the lower front end of the second swing arm II through the second swing arm front roller shaft II, and a second swing arm rear roller II is rotatably provided at the lower rear end of the second swing arm II through the second swing arm rear roller shaft II, the second swing arm front roller II corresponds to and cooperates with the rim of the third cam III, and the second swing arm rear roller II corresponds to and cooperates with the rim of the fourth cam IV.

[0013] Furthermore, the clamp is configured with a clamp opening, and a clamp opening tightening screw is provided at a position corresponding to the clamp opening. The clamp opening tightening screw is tightened or loosened to cause the clamp to close or release the axial tightening groove at the right end of the motor shaft gear pivot shaft.

[0014] Furthermore, cam box cover fixing screw holes are provided at intervals on and around the right side surface of the cam box, and cam box cover screw holes are provided at intervals on the edges of the cam box cover and at positions corresponding to the cam box cover fixing screw holes, and cam box cover fixing screws are provided on the cam box cover screw holes, and the cam box cover fixing screws are screwed into the cam box cover fixing screw holes, thereby fixing the cam box cover to the right side surface of the cam box in a state of shielding the right side open portion of the cam box cavity; gear box fixing screw holes are provided at intervals on the cam box cover, and gear box fixing screw holes are provided on the gear box and at positions corresponding to the gear box fixing screw holes, and gear box fixing screws are provided on the gear box fixing screw holes, and the gear box fixing screws are screwed into the gear box fixing screw holes to fix the gear box to the right side of the cam box cover.

[0015] The technical effect of the technical solution provided by the utility model is that: since a gear box is added and fixed to the right side of the cam box cover, and since the servo motor is fixed to the upper right side of the gear box in a horizontal lying state, the motor shaft of the servo motor extends to the left into the gear box cavity and is connected with a motor shaft gear, and since the right end of the camshaft is extended to the outside of the cam box and then extends to the gear box cavity, the camshaft reduction gear fixed to the right end of the camshaft meshes with the motor shaft gear in the gear box cavity, thereby achieving both the cam box and the gear box. Therefore, when the cam box or the gear box needs to be inspected and maintained, the cam box or the gear box can be opened in a targeted manner, which helps to reflect the convenience of inspection and maintenance; since the motor shaft is connected to the motor shaft gear and the left and right ends of the motor shaft gear pivot shaft of the motor shaft gear are rotatably supported on the left and right supporting bearings of the motor shaft gear pivot shaft, the motor shaft can be well supported and damage can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of an embodiment of the utility model;

[0017] Figure 2 for Figure 1 A cross-sectional view of

[0018] Figure 3 for Figure 1 and Figure 2 The diagram shown is a schematic diagram of the cam box, the camshaft, the cam arranged on the camshaft, and the cooperation between the first swing arm I and the second swing arm II. DETAILED DESCRIPTION

[0019] In order to more clearly understand the technical essence and beneficial effects of the present invention, the applicant provides a detailed description in the form of embodiments below. However, the description of the embodiments is not a limitation on the present invention. Any equivalent changes made based on the concept of the present invention that are merely formal and not substantial should be regarded as within the scope of the technical solution of the present invention.

[0020] In the following description, all concepts related to up, down, left, right, front and back directions or orientations are based on Figure 1 The position state shown is a reference, and thus cannot be understood as a special limitation on the technical solution provided by the utility model.

[0021] See also Figures 1 to 3 , showing a servo motor 1, a cam box 2 and a cam shaft 3, the front and rear sides (i.e., the front side and the rear side) of the lower part of the cam box 2 are respectively fixed on a pair of cam box fixing seats 21 corresponding to each other, and the left side of the cam box 2 is fixed to the middle part of the right side of the right wall plate 4 of the jacquard machine, and the left end of the cam shaft 3 is fixed through the cam shaft left support bearing 31 ( Figure 3 The camshaft 3 is rotatably supported on the right wall panel 4 of the jacquard machine as shown in the figure. The middle part of the camshaft 3 is located in the cam box cavity 23 of the cam box 2. A cam 32 is fixed to the middle part of the camshaft 3. The middle part of the camshaft 3 is rotatably supported on a cam box cover 22 fixed to the right side of the cam box 2 and used for shielding the right side opening of the cam box cavity 23 through a camshaft middle support bearing 33.

[0022] As the technical points of the technical solution provided by the utility model: the structural system of the power transmission and reduction device of the servo motor direct-driven jacquard machine also includes a gear box 5, which is fixed to the right side of the cam box cover 22, and the servo motor 1 is fixed to the upper right side of the gear box 5 in a horizontal lying state. The motor shaft 11 of the servo motor 1 extends to the left into the gear box cavity 51 of the gear box 5 and is connected to a motor shaft gear 111. The right end of the camshaft 3 extends to the gear box 5 and is rotatably supported at the lower part of the gear box 5 through the camshaft right support bearing 34. At the right end of the camshaft 3 and at a position corresponding to the motor shaft gear 111, a camshaft reduction gear 35 meshing with the motor shaft gear 111 is fixed.

[0023] Furthermore, the aforementioned motor shaft gear 111 has a motor shaft gear pivot shaft 1111, the motor shaft gear 111 is located in the middle of the motor shaft gear pivot shaft 1111, and the left end of the motor shaft gear pivot shaft 1111 is rotatably supported on the aforementioned cam box cover 22 through the motor shaft gear pivot shaft left support bearing 11111, and the right end of the motor shaft gear pivot shaft 1111 is rotatably supported on the upper part of the aforementioned gear box 5 through the motor shaft gear pivot shaft right support bearing 11112, the right end of the motor shaft gear pivot shaft 1111 extends to the outside of the aforementioned gear box cavity 51 of the gear box 5 (that is, extends to the right side of the gear box 5), and the aforementioned motor shaft 11 is connected to the right end of the motor shaft gear pivot shaft 1111.

[0024] Furthermore, a pivot shaft hollow cavity 11113 is formed at the right end of the aforementioned motor shaft gear pivot shaft 1111, and axial tensioning grooves 11114 are arranged on the cavity wall of the pivot shaft hollow cavity 11113 and at intervals around the pivot shaft hollow cavity 11113. The aforementioned motor shaft 11 is inserted into the pivot shaft hollow cavity 11113 and is fixedly connected to the right end of the motor shaft gear pivot shaft 1111 by a clamp 112 which is sleeved on the right end of the motor shaft gear pivot shaft 1111.

[0025] Further, by Figure 1 As shown, a group of servo motor flange side fixing holes 52 are provided on the upper right side of the aforementioned gear box 5 and at a position corresponding to the left end of the aforementioned servo motor 1 in a state of being distributed in a square shape, that is, distributed in four corners, and a servo motor fixing flange 12 is formed on the left end face of the servo motor 1. The servo motor fixing flange 12 is rectangular in shape and has a servo motor fixing flange hole 121 at each of the four corners. The servo motor fixing flange hole 121 is provided with a flange fixing screw 1211, and the flange fixing screw 1211 is screwed into the servo motor flange side fixing hole 52 to fix the servo motor 1 to the upper right side of the aforementioned gear box 5 in a horizontal lying state.

[0026] Furthermore, a bearing outer retaining ring 221 is fixed on the right side of the aforementioned cam box cover 22 and at a position corresponding to the surrounding of the left supporting bearing 11111 of the aforementioned motor shaft gear pivot shaft, and the center of the bearing outer retaining ring 221 has a motor shaft gear pivot shaft clearance hole 2211 for the left end of the aforementioned motor shaft gear pivot shaft 1111 to pass through, and a bearing inner retaining ring 222 is fixed on the left side of the cam box cover 22 and at a position corresponding to the surrounding of the left supporting bearing 11111 of the motor shaft gear pivot shaft.

[0027] Furthermore, a reduction gear fixing flange ring 36 is formed on the aforementioned camshaft 3 and at a central position corresponding to the left side of the aforementioned camshaft reduction gear 35, and a camshaft reduction gear fixing step plate 351 is formed at the central right side of the camshaft reduction gear 35 and at a position corresponding to the reduction gear fixing flange ring 36, that is, the camshaft reduction gear fixing step plate 351 is an integral structure with the camshaft reduction gear 35, and a circumference of the camshaft reduction gear fixing step plate 351 and around the camshaft reduction gear fixing step plate 351 is formed. Step plate screw holes 3511 are provided in the direction at intervals, and the step plate screw holes 3511 pass through from the right side of the camshaft reduction gear fixing step plate 351 to the left side of the camshaft reduction gear 35 and correspond to the reduction gear fixing flange ring screw hole 361 provided on the reduction gear fixing flange ring 36. A step plate fixing screw 35111 is provided on the step plate screw hole 3511, and the step plate fixing screw 35111 is screwed into the aforementioned reduction gear fixing flange ring screw hole 361, thereby fixing the camshaft reduction gear 35 to the right end of the aforementioned camshaft 3.

[0028] Further, see Figure 3 And combined with Figure 1 At Figure 2The cam 32 comprises a first cam Ⅰ321, a second cam Ⅱ322, a third cam Ⅲ323 and a fourth cam Ⅳ324. The first cam Ⅰ321 and the second cam Ⅱ322 form an integral structure with each other, and the third cam Ⅲ323 and the fourth cam Ⅳ324 form an integral structure with each other and are located on the left side of the first cam Ⅰ321. The first cam Ⅰ321, the second cam Ⅱ322, the third cam Ⅲ323 and the fourth cam Ⅳ324 are driven by the rotation of the camshaft 3, and the first swing arm Ⅰ6 is driven by the first cam Ⅰ321 and the second cam Ⅱ322, and the second swing arm Ⅱ7 is driven by the third cam Ⅲ323 and the fourth cam Ⅳ324. The first swing arm Ⅰ6 is fixed to the right end face of the first swing arm shaft Ⅰ61 extending into the cam box cavity 23 by bolts, and the first swing arm shaft Ⅰ6 The right end of the second swing arm shaft 1 is rotatably supported on the jacquard right wall plate 4 through the first swing arm shaft right support bearing, the second swing arm II 7 is fixed to the right end face of the second swing arm shaft II 71 extending into the cam box cavity 23 through bolts, and the right end of the second swing arm shaft II 71 is rotatably supported on the jacquard right wall plate 4 through the second swing arm shaft support bearing, the left end of the second swing arm shaft II 71 extends to the left side of the jacquard right wall plate 4 and is configured as a horizontal cantilever end, wherein the second swing arm shaft II 71 is a hollow shaft having a hollow cavity 711 passing from the left end to the right end, the right end of the first swing arm shaft I 61 passes through the hollow cavity 711 and extends into the cam box cavity 23, and the left end of the first swing arm shaft I 61 is rotatably supported on the jacquard left wall plate (not shown in the figure) corresponding to the left side of the jacquard right wall plate 4 through the first swing arm shaft left support bearing.

[0029] See you next time Figures 1 to 3 A first swing arm front roller Ⅰ62 is rotatably provided at the lower front end of the first swing arm Ⅰ6 through the first swing arm front roller shaft Ⅰ621, and a first swing arm rear roller Ⅰ63 is rotatably provided at the lower rear end of the first swing arm Ⅰ6 through the first swing arm rear roller shaft Ⅰ631. The first swing arm front roller Ⅰ62 corresponds to and cooperates with the rim of the first cam Ⅰ321, and the first swing arm rear roller Ⅰ63 corresponds to and cooperates with the rim of the second cam Ⅱ322. A second swing arm front roller Ⅱ72 is rotatably provided at the lower front end of the second swing arm Ⅱ7 via the second swing arm front roller shaft Ⅱ721, and a second swing arm rear roller Ⅱ73 is rotatably provided at the lower rear end of the second swing arm Ⅱ7 via the second swing arm rear roller shaft Ⅱ731, the second swing arm front roller Ⅱ72 corresponds to and cooperates with the rim of the third cam Ⅲ323, and the second swing arm rear roller Ⅱ73 corresponds to and cooperates with the rim of the fourth cam Ⅳ324.

[0030] Further, by Figure 1As shown, the aforementioned clamp 112 is configured with a clamp opening 1121, and a clamp opening tightening screw 11211 is provided at a position corresponding to the clamp opening 1121. By tightening or loosening the clamp opening tightening screw 11211, the aforementioned clamp 112 closes or releases the aforementioned axial tightening groove 11114 at the right end of the aforementioned motor shaft gear pivot shaft 1111. When closed, it can reflect or satisfy the reliable connection between the motor shaft 11 and the motor shaft gear pivot shaft 1111, and vice versa.

[0031] Furthermore, specifically Figure 1 As shown, cam box cover fixing screw holes 24 are provided at intervals on the right side of the cam box 2 and around the right side of the cam box 2, and cam box cover screw holes 223 are provided at intervals on the edges of the cam box cover 22 and at positions corresponding to the cam box cover fixing screw holes 24. Cam box cover fixing screws 2231 are provided on the cam box cover screw holes 223. The cam box cover fixing screws 2231 are screwed into the cam box cover fixing screw holes 24, so that the cam box cover 22 is fixed to the cam box cover 22 when it is in contact with the cam box cover. The right open portion of the cam box cavity 23 is fixed to the right side surface of the aforementioned cam box 2 in a shielded state; a gear box fixing screw hole 224 is provided on the aforementioned cam box cover 22 in an interval state, and a gear box fixing screw hole 53 is provided on the aforementioned gear box 5 at a position corresponding to the gear box fixing screw hole 224, and a gear box fixing screw 531 is provided on the gear box fixing screw hole 53, and the gear box fixing screw 531 is screwed into the aforementioned gear box fixing screw hole 224 to fix the gear box to the right side of the cam box cover 22.

[0032] When the servo motor 1 works, its motor shaft 11 drives the motor shaft gear pivot shaft 1111. Since the motor shaft gear 111 is meshed with the aforementioned camshaft reduction gear 35, the motor shaft gear 111 drives the camshaft reduction gear 35, and the camshaft reduction gear 35 drives the camshaft 3, and the camshaft 3 drives the first cam Ⅰ321, the second cam Ⅱ322, the third cam Ⅲ323 and the fourth cam Ⅳ324 of the structural system of the cam 32 fixed thereon. Then, the first cam Ⅰ321 and the second cam Ⅱ322 drive the first swing arm Ⅰ6 to move by acting on the first swing arm front roller Ⅰ62 and the first swing arm rear roller Ⅰ63, and the third cam Ⅲ323 and the fourth cam Ⅳ324 drive the second swing arm Ⅱ7 by acting on the second swing arm front roller Ⅱ72 and the second swing arm rear roller Ⅱ73. The first swing arm Ⅰ6 drives the first swing arm shaft Ⅰ61 and the second swing arm Ⅱ7 drives the second swing arm shaft Ⅱ71, thereby realizing the heald lifting. Since the principle of heald lifting is common knowledge, the applicant will not elaborate on it.

[0033] When the gearbox 5 is to be inspected, for example, when the motor shaft gear 111 and / or the camshaft reduction gear 35 in the gearbox 5 are to be inspected, the gearbox 5 only needs to be removed from the cambox cover 22, and there is no need to open the cambox 2. Vice versa, that is, when the cambox 2 is to be inspected, the cambox cover 22 only needs to be opened, and the gearbox 5 does not need to be involved.

[0034] In summary, the technical solution provided by the utility model makes up for the shortcomings of the existing technology, successfully completes the invention task, and faithfully realizes the technical effects stated by the applicant in the technical effect column above.

Claims

1. A power transmission and reduction device for a servo motor directly driven jacquard machine, comprising a servo motor (1), a cam box (2) and a cam shaft (3), wherein the front and rear sides of the lower part of the cam box (2) are fixed on a pair of cam box fixing seats (21) corresponding to each other front and rear, and the left side surface of the cam box (2) is fixed to the middle part of the right side surface of the right wall plate (4) of the jacquard machine, and the left end of the cam shaft (3) is rotatably supported on the right wall plate (4) of the jacquard machine through a cam shaft left support bearing (31), the middle part of the cam shaft (3) is located in the cam box cavity (23) of the cam box (2), a cam (32) is fixed in the middle part of the cam shaft (3) and is rotatably supported on a cam box cover (22) fixed to the right side of the cam box (2) for shielding the cam box cavity (23) through a cam shaft middle support bearing (33), Features: The invention also comprises a gear box (5), which is fixed on the right side of the cam box cover (22); the servo motor (1) is fixed to the upper right side of the gear box (5) in a horizontally lying state; the motor shaft (11) of the servo motor (1) extends to the left into the gear box cavity (51) of the gear box (5) and is connected to a motor shaft gear (111); the right end of the cam shaft (3) extends to the gear box (5) and is rotatably supported at the lower part of the gear box (5) through a cam shaft right support bearing (34); and a cam shaft reduction gear (35) meshing with the motor shaft gear (111) is fixed at the right end of the cam shaft (3) and at a position corresponding to the motor shaft gear (111).

2. The power transmission and reduction device of the servo motor direct-driven jacquard machine according to claim 1, Features: The motor shaft gear (111) has a motor shaft gear pivot shaft (1111), the motor shaft gear (1111) is located in the middle of the motor shaft gear pivot shaft (1111), and the left end of the motor shaft gear pivot shaft (1111) is rotatably supported on the cam box cover (22) through a left support bearing (11111) of the motor shaft gear pivot shaft, while the right end of the motor shaft gear pivot shaft (1111) is rotatably supported on the upper part of the gear box (5) through a right support bearing (11112) of the motor shaft gear pivot shaft, the right end of the motor shaft gear pivot shaft (1111) extends outside the gear box cavity (51) of the gear box (5), and the motor shaft (11) is connected to the right end of the motor shaft gear pivot shaft (1111).

3. The power transmission and reduction device of the servo motor direct-driven jacquard machine according to claim 2, Features: A pivot shaft hollow cavity (11113) is formed at the right end of the motor shaft gear pivot shaft (1111), and axial tensioning grooves (11114) are arranged on the cavity wall of the pivot shaft hollow cavity (11113) and around the pivot shaft hollow cavity (11113) at intervals. The motor shaft (11) is inserted into the pivot shaft hollow cavity (11113) and is fixedly connected to the right end of the motor shaft gear pivot shaft (1111) via a clamp (112) sleeved on the right end of the motor shaft gear pivot shaft (1111).

4. The power transmission and reduction device of the servo motor direct-driven jacquard machine according to claim 1, Features: A group of servo motor flange fixing holes (52) are provided in a U-shaped distribution on the upper right side of the gear box (5) and at a position corresponding to the left end of the servo motor (1), and a servo motor fixing flange (12) is formed on the left end face of the servo motor (1). The servo motor fixing flange (12) is rectangular in shape and has a servo motor fixing flange hole (121) at each of the four corners. Flange fixing screws (1211) are provided on the servo motor fixing flange hole (121). The flange fixing screws (1211) are screwed into the servo motor flange fixing holes (52) to fix the servo motor (1) to the upper right side of the gear box (5) in a horizontal lying state.

5. The power transmission and reduction device of the servo motor direct-driven jacquard machine according to claim 2, Features: A bearing outer retaining ring (221) is fixed on the right side of the cam box cover (22) and at a position corresponding to the left supporting bearing (11111) of the motor shaft gear pivot shaft. The center of the bearing outer retaining ring (221) has a motor shaft gear pivot shaft clearance hole (2211) for the left end of the motor shaft gear pivot shaft (1111) to pass through. A bearing inner retaining ring (222) is fixed on the left side of the cam box cover (22) and at a position corresponding to the left supporting bearing (11111) of the motor shaft gear pivot shaft.

6. The power transmission and reduction device of the servo motor direct-driven jacquard machine according to claim 1, Features: A reduction gear fixing flange ring (36) is formed on the camshaft (3) and at a central position corresponding to the left side of the camshaft reduction gear (35), and a camshaft reduction gear fixing step plate (351) is formed at a central position on the right side of the camshaft reduction gear (35) and at a position corresponding to the reduction gear fixing flange ring (36). Step plate screw holes (3511) are provided at intervals on and around the circumferential direction of the camshaft reduction gear fixing step plate (351). The screw hole (3511) passes through from the right side of the camshaft reduction gear fixing step plate (351) to the left side of the camshaft reduction gear (35) and corresponds to the reduction gear fixing flange ring screw hole (361) opened on the reduction gear fixing flange ring (36). A step plate fixing screw (35111) is provided on the step plate screw hole (3511), and the step plate fixing screw (35111) is screwed into the reduction gear fixing flange ring screw hole (361), thereby fixing the camshaft reduction gear (35) to the right end of the camshaft (3).

7. The power transmission and reduction device of the servo motor direct-driven jacquard machine according to claim 1, Features: The cam (32) includes a first cam I (321), a second cam II (322), a third cam III (323) and a fourth cam IV (324). The first cam I (321) and the second cam II (322) form an integral structure, while the third cam III (323) and the fourth cam IV (324) form an integral structure and are located on the left side of the first cam I (321). The first cam I (321), the second cam II (322), the third cam III (323) and the fourth cam IV (324) are driven by the rotation of the camshaft (3). The first swing arm I (6) is driven by the first cam I (321) and the second cam II (322), while the second swing arm II (7) is driven by the third cam III (323) and the fourth cam IV (324). The first swing arm I (6) is fixed to the right end face of the first swing arm shaft I (61) extending into the cam box cavity (23). The first swing arm shaft I (61) is rotatably supported on the right wall plate (4) of the jacquard machine through the right support bearing of the first swing arm shaft, the second swing arm II (7) is fixed to the right end face of the second swing arm shaft II (71) extending into the cam box cavity (23), and the right end of the second swing arm shaft II (71) is rotatably supported on the right wall plate (4) of the jacquard machine through the second swing arm shaft support bearing, and the left end of the second swing arm shaft II (71) extends to the jacquard machine. The left side of the right wall panel (4) of the machine is configured as a horizontal cantilever end, wherein the second swing arm shaft II (71) is a hollow shaft having a hollow cavity (711) extending from the left end to the right end, the right end of the first swing arm shaft I (61) passes through the hollow cavity (711) and extends into the cam box cavity (23), and the left end of the first swing arm shaft I (61) is rotatably supported on the left wall panel of the jacquard machine corresponding to the left side of the right wall panel (4) of the jacquard machine through the left support bearing of the first swing arm shaft.

8. The power transmission and reduction device of the servo motor direct-driven jacquard machine according to claim 7, Features: A first swing arm front roller I (62) is rotatably provided at the lower front end of the first swing arm I (6) via a first swing arm front roller shaft I (621), and a first swing arm rear roller I (63) is rotatably provided at the lower rear end of the first swing arm I (6) via a first swing arm rear roller shaft I (631), the first swing arm front roller I (62) corresponds to and matches with the rim of the first cam I (321), and the first swing arm rear roller I (63) corresponds to and matches with the rim of the second cam II (322); A second swing arm front roller II (72) is rotatably provided at the lower front end of the second swing arm II (7) via a second swing arm front roller shaft II (721), and a second swing arm rear roller II (73) is rotatably provided at the lower rear end of the second swing arm II (7) via a second swing arm rear roller shaft II (731). The second swing arm front roller II (72) corresponds to and cooperates with the rim of the third cam III (323), and the second swing arm rear roller II (73) corresponds to and cooperates with the rim of the fourth cam IV (324).

9. The power transmission and reduction device of the servo motor direct-driven jacquard machine according to claim 3, Features: The clamp (112) is formed with a clamp opening (1121), and a clamp opening tightening screw (11211) is provided at a position corresponding to the clamp opening (1121). By tightening or loosening the clamp opening tightening screw (11211), the clamp (112) closes or releases the axial tightening groove (11114) at the right end of the motor shaft gear pivot shaft (1111).

10. The power transmission and reduction device of the servo motor direct-driven jacquard machine according to claim 1, Features: Cam box cover fixing screw holes (24) are provided at intervals on and around the right side of the cam box (2), and cam box cover screw holes (223) are provided at intervals on the edges of the cam box cover (22) and at positions corresponding to the cam box cover fixing screw holes (24). Cam box cover fixing screws (2231) are provided on the cam box cover screw holes (223). The cam box cover fixing screws (2231) are screwed into the cam box cover fixing screw holes (24), so that the cam box cover (22) is fixed to the cam box when it is in contact with the cam box. The right open portion of the cavity (23) is fixed to the right side surface of the cam box (2) in a shielded state; a gear box fixing screw hole (224) is provided on the cam box cover (22) in an interval state; a gear box fixing screw hole (53) is provided on the gear box (5) at a position corresponding to the gear box fixing screw hole (224); a gear box fixing screw (531) is provided on the gear box fixing screw hole (53); the gear box fixing screw (531) is screwed into the gear box fixing screw hole (224) to fix the gear box to the right side of the cam box cover (22).

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