A transmission device with additional axial reciprocating motion in high speed rotation

Abstract

The application provides a transmission device with additional axial reciprocating motion in high-speed rotation, belonging to the technical field of brush cleaning, and having a tipping paper drum, a paper cutter, blades, a brush, a left rotating shaft, a right rotating shaft and a transmission support assembly. The paper cutter is used for cutting tipping paper, the blades are multiple and uniformly arranged on the paper cutter and used for cutting the tipping paper; the tipping paper drum is abuttingly arranged with the paper cutter, used for conveying the tipping paper and holding and conveying the tipping paper sheet formed by the cutting of the tipping paper and the paper cutter; the brush is arranged on the top of the paper cutter and used for cleaning the blades in real time; the brush is two, connected with the transmission support assembly through the left rotating shaft and the right rotating shaft respectively, and the transmission support assembly is used for transmitting power. The device can solve the problem that the existing brush cleaning device is difficult to completely clean the impurities on the tipping paper cutter, which easily leads to the increase of the proportion of product quality defects.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of brush cleaning, and in particular relates to a transmission device with additional axial reciprocating motion in high-speed rotation. BACKGROUND

[0002] Brushes are widely used in various cigarette making machines, and are installed in some functional parts to clean the surface of parts online, maintain the process performance of the equipment, ensure product quality, extend the cleaning cycle of downtime, and improve production efficiency. Among them, the brush cleaning performance of the tipping paper cutter has a particularly significant impact on the production process quality; during the process of cutting the tipping paper coated with adhesive film into pieces, a layer of adhesive dirt will quickly adhere to the blade, and only through continuous cleaning by the brush can the cutter not become blunt or stick to the tipping paper pieces. The brush is installed on the left rotating shaft and the right rotating shaft, and the two transmission shafts are driven to rotate by a transmission support assembly and rotate in the same direction. The brush overlaps the blade part in contact, and the linear speed on the contact position is similar and the direction is the same. The brush rotates by rolling with the cutter to clean the adhesive dirt on the blade.

[0003] However, the existing brush cleaning device cannot completely clean the impurities on the tipping paper cutter, which can easily lead to an increase in the proportion of product quality defects. SUMMARY

[0004] Therefore, the present application provides a transmission device with additional axial reciprocating motion in high-speed rotation, which can solve the problem that the existing brush cleaning device cannot completely clean the impurities on the tipping paper cutter, which can easily lead to an increase in the proportion of product quality defects.

[0005] The present application is implemented as follows:

[0006] The present application provides a transmission device with additional axial reciprocating motion in high-speed rotation, wherein a tipping paper drum, a cutter, blades, a brush, a left rotating shaft, a right rotating shaft, and a transmission support assembly are provided. The cutter is used to cut tipping paper, the blades are a plurality of blades and are uniformly arranged on the cutter to cut the tipping paper; the tipping paper drum is arranged in abutment with the cutter, and is used to convey tipping paper and hold and convey the tipping paper pieces formed by cutting the tipping paper with the cutter; the brush is arranged on the top of the cutter and is used to clean the blades in real time; the brush is two brushes and is connected to the transmission support assembly through the left rotating shaft and the right rotating shaft, respectively, the brush is sleeved on the left rotating shaft and the right rotating shaft, the transmission support assembly is fixed on the rotating mechanism of the equipment and is used to transmit power, the left rotating shaft and the right rotating shaft rotate in the same direction and have a phase difference of 90°, and are used to realize the synchronization of the left rotating shaft and the right rotating shaft in the axial reciprocation.

[0007] The blades are 12, evenly arranged on the paper cutter, and the adjacent blades are 30°.

[0008] On the basis of the above technical scheme, the transmission device with high-speed rotation and additional axial reciprocating motion can be further improved as follows:

[0009] The cylindrical cam transmission support assembly comprises a cylindrical cam, a follow-up roller and a first gear, the first gear is connected to the transmission support assembly through a bearing, the cylindrical cam is arranged at one end of the first gear away from the transmission support assembly, the follow-up roller is arranged on both sides of the cylindrical cam, and the cylindrical cam, the follow-up roller and the first gear are used to drive the left rotating shaft and the right rotating shaft to perform axial reciprocating motion.

[0010] The second gear is installed on the ball spline, and the ball spline is fixed at one end of the cylindrical cam transmission support assembly away from the transmission support assembly in a circumferential direction, so as to drive the brush rotating shaft to rotate in a circumferential direction while keeping the driving shaft to have the freedom of reciprocating motion.

[0011] Further, the intermediate transmission support assembly comprises a third gear and a fourth gear, the third gear and the fourth gear are arranged on both sides of the intermediate transmission support assembly, the third gear is connected in mesh with the first gear on the left rotating shaft and the right rotating shaft, and the other side is connected in mesh with the rotating mechanism of the equipment, so as to drive the left rotating shaft and the right rotating shaft to rotate; the fourth gear is connected in mesh with the second gear on the left rotating shaft and the right rotating shaft, so as to drive the second gear to rotate.

[0012] The cylindrical cam transmission support assemblies on the left rotating shaft and the right rotating shaft are 90° out of phase, so as to drive the left rotating shaft and the right rotating shaft to stagger forward and backward.

[0013] Further, the number of teeth of the third gear and the number of teeth of the first gear are the same as the number of teeth of the second gear and the number of teeth of the fourth gear, the number of teeth of the third gear is one more than the number of teeth of the fourth gear, and the number of teeth of the first gear is one less than the number of teeth of the second gear, so as to greatly reduce the reciprocating motion frequency of the brush transmission shaft.

[0014] Further, the cylindrical cam transmission support assembly further comprises a support shaft, a radial spherical bearing, a first needle bearing and a second needle bearing, the first gear is installed on the radial spherical bearing, the support shaft is fixed on one side of the transmission support assembly, and the end of the support shaft away from the radial spherical bearing is fixedly connected with the transmission support assembly; the first needle bearing is installed in the inner hole of one end of the cylindrical cam, and the first needle bearing is used for supporting the rotation and reciprocating movement of the cylindrical cam on the support shaft; a through hole is formed in the inner end of the first needle bearing and corresponds to the position of the cylindrical cam, so that the influence of air pressure on the cylindrical cam is eliminated when the cylindrical cam reciprocates relative to the support shaft; the second needle bearing is arranged between the cylindrical cam transmission support assembly and the ball spline mechanism, is installed on the cylindrical cam, and is used for supporting the rotation and reciprocating movement of the cylindrical cam.

[0015] Further, the second needle bearing is sleeved on the cylindrical cam, the rotating reciprocating shaft is fixedly connected with the cylindrical cam through key connection and a set screw, and the rotating reciprocating shaft is used to drive the shaft of the ball spline to reciprocate.

[0016] The inner periphery of the ball spline is uniformly distributed with 2 groups or 4 groups of longitudinally arranged balls, the balls are embedded in the ball key grooves of the shaft, are guided by the key grooves, slide in the key grooves, and are used for transmitting torque between the shaft and the ball spline while the balls roll in the axial direction.

[0017] The second gear is installed on the ball spline and is connected in the circumferential direction through a flat key.

[0018] Further, the second gear is designed with a stop edge on both sides, the stop edge is fastened on the ball spline through a flat key and a set screw, and the second gear is limited and arranged in the stop edge.

[0019] The second gear is meshed and connected with the fourth gear, the fourth gear is inserted into the stop edge, and is used for limiting the second gear and the ball spline in the axial direction while transmitting torque.

[0020] Further, one end of the rotating reciprocating shaft away from the cylindrical cam transmission support assembly is installed on a bearing sleeve assembly, the bearing sleeve assembly comprises a bearing sleeve, a skeleton oil seal and a needle bearing, the skeleton oil seal and the needle bearing are arranged in the interior of the bearing sleeve, and the needle bearing is used for supporting the rotation of the rotating reciprocating shaft.

[0021] Further, a hole is formed in the interior of the rotating reciprocating shaft, a rotating shaft is arranged in the hole, the rotating shaft is fastened and connected with the rotating reciprocating shaft through a set screw, and the rotating shaft is used for transmitting torque through the half-week boss structure matched with the end of the rotating reciprocating shaft.

[0022] The transmission support assembly comprises an inner wall plate, a middle wall plate and an outer wall plate for positioning and fastening the bearing, the shaft, the bearing sleeve assembly and the like; the inner wall plate, the middle wall plate and the outer wall plate are fastened with the peripheral cover plate into the box plate structure of the transmission support assembly through positioning pins and bolts.

[0023] Further, the cylindrical cam has two working surfaces, namely a push-out cam working surface and a pull-back cam working surface, and the follower roller rolls on the working surfaces to push the rotating reciprocating shaft to move axially reciprocatingly.

[0024] The push-out cam working surface and the pull-back cam working surface are alternately subjected to the pushing force of the follower roller to push the rotating reciprocating shaft to move axially.

[0025] The cylindrical cam can be of a double-return type, i.e. one rotation of the cylindrical cam is associated with two times of axial reciprocating movement, or the cylindrical cam can be of a single-return type, i.e. one rotation of the cylindrical cam is associated with one time of reciprocating movement.

[0026] The double-return type cylindrical cam can be designed to have two pairs of follower rollers, and the single-return type cylindrical cam can be designed to have only one pair of follower rollers.

[0027] Compared with the prior art, the transmission device with additional axial reciprocating movement of high-speed rotation provided by the application has the beneficial effect that the axial forward and backward reciprocating movement of the brush is increased, so that the brush not only sweeps the blade circumferentially, but also rubs the surface of the blade in the axial direction, the cleaning dimension and intensity of the surface of the blade are improved, the glue dirt tends to be broken into small pieces, is easy to separate from the blade and the brush, is thrown out under the action of centrifugal force and is immediately sucked and removed, the situation that the brush is adhered by the thick glue dirt and is disabled is eliminated, the cleaning effect is improved, and the service life of the brush and the paper cutting knife is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the application. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without any creative labor under the premise of the drawings.

[0029] Figure 1 It is a schematic view of the waterproof paper cutting and brush cleaning device of the cigarette making machine;

[0030] Figure 2 It is a structural schematic view of the transmission support assembly;

[0031] Figure 3Structure diagram of differential structure of gear transmission shaft;

[0032] Figure 4 Structure diagram of internal components of cylindrical cam transmission support assembly;

[0033] Figure 5 Structure diagram of roller spline;

[0034] Figure 6 Structure diagram of bearing sleeve assembly;

[0035] Figure 7 Structure diagram of brush shaft installation;

[0036] Figure 8 Structure diagram of brush shaft installation section;

[0037] Figure 9 Structure diagram of transmission support assembly wallboard;

[0038] In the drawings, the components represented by each reference numeral are listed as follows:

[0039] 1. Waterproof paper drum; 2. Paper cutter; 3. Blade; 4. Brush; 5. Left shaft; 6. Right shaft; 7. Transmission support assembly; 8. Cylindrical cam transmission support assembly; 8.1. Cylindrical cam; 8.2. Follow-up roller; 8.3. First gear; 8.4. Support shaft; 8.5. Radial ball bearing; 8.6. First needle bearing; 8.7. Second needle bearing; 9.1. Second gear; 9.2. Ball spline; 9.3. Rotary reciprocating shaft; 9.3.1. Ball keyway; 9.4. Ledge; 10. Intermediate transmission support assembly; 10.1. Third gear; 10.2. Fourth gear; 11.1. Bearing sleeve; 11.2. Skeleton oil seal; 11.3. Needle bearing; 12. Shaft. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0041] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0042] It should be noted that like reference numerals and characters refer to like elements throughout the following figures and description, and thus, once certain terms are defined in one figure, they need not be further elaborated and explained in further figures.

[0043] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0044] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0045] As Figures 1-9 shown is a structural schematic diagram of a transmission device with additional axial reciprocating motion in high-speed rotation provided by the present application, in the figure, there are tissue drum 1, paper cutter 2, blade 3, brush 4, left rotating shaft 5, right rotating shaft 6 and transmission support assembly 7, the paper cutter 2 is used to cut the tissue, the blade 3 is a plurality of blades, which are uniformly arranged on the paper cutter 2 and used to cut the tissue; the tissue drum 1 is arranged in abutment with the paper cutter 2, the tissue drum 1 is used to convey the tissue and hold and convey the tissue sheet formed by the cutting of the paper cutter 2; the brush 4 is arranged on the top of the paper cutter 2 and used to clean the blade 3 in real time; the brush 4 is two, which are connected with the transmission support assembly 7 through the left rotating shaft 5 and the right rotating shaft 6, the brush 4 is sleeved on the left rotating shaft 5 and the right rotating shaft 6, the transmission support assembly 7 is fixed on the rotating mechanism of the equipment and used to transmit power, the rotating directions of the left rotating shaft 5 and the right rotating shaft 6 are the same, and the phases are different by 90°, which are used to realize the synchronization of the left rotating shaft 5 and the right rotating shaft 6 in the axial reciprocation.

[0046] The blade 3 is 12, which are uniformly arranged on the paper cutter 2, and the adjacent blades 3 are 30° apart.

[0047] Wherein, in the above technical solution, the cylindrical cam transmission support assembly 8 and the ball spline mechanism are arranged between the left rotating shaft 5 and the right rotating shaft 6 and the transmission support assembly 7, the cylindrical cam transmission support assembly 8 comprises a cylindrical cam 8.1, a follow-up roller 8.2 and a first gear 8.3, the first gear 8.3 is connected with the transmission support assembly 7 through a bearing, the cylindrical cam 8.1 is arranged at one end of the first gear 8.3 away from the transmission support assembly 7, the follow-up roller 8.2 is arranged on both sides of the cylindrical cam 8.1, and the cylindrical cam 8.1, the follow-up roller 8.2 and the first gear 8.3 are used for driving the left rotating shaft 5 and the right rotating shaft 6 to axially reciprocate.

[0048] The second gear 9.1 and the ball spline 9.2, the second gear 9.1 is installed on the ball spline 9.2, the ball spline 9.2 is fixed in the circumferential direction at one end of the cylindrical cam transmission support assembly 8 away from the transmission support assembly 7, and is used for keeping the driving shaft to have the freedom of reciprocating motion while driving the brush rotating shaft to rotate in the circumferential direction.

[0049] Further, in the above technical solution, the intermediate transmission support assembly 10 is arranged between the left rotating shaft 5 and the right rotating shaft 6, the intermediate transmission support assembly 10 comprises a third gear 10.1 and a fourth gear 10.2, the third gear 10.1 and the fourth gear 10.2 are arranged on both sides of the intermediate transmission support assembly 10, the third gear 10.1 is meshingly connected with the first gear 8.3 on the left rotating shaft 5 and the right rotating shaft 6, and the other side is meshingly connected with the rotating mechanism of the device, and is used for driving the left rotating shaft 5 and the right rotating shaft 6 to rotate; the fourth gear 10.2 is meshingly connected with the second gear 9.1 on the left rotating shaft 5 and the right rotating shaft 6, and is used for driving the second gear 9.1 to rotate.

[0050] The cylindrical cam transmission support assembly 8 on the left rotating shaft 5 and the right rotating shaft 6 is 90° in phase, and is used for driving the left rotating shaft 5 and the right rotating shaft 6 to stagger forward and backward.

[0051] Further, in the above technical solution, the number of teeth of the third gear 10.1 and the number of teeth of the first gear 8.3 are the same as the number of teeth of the second gear 9.1 and the fourth gear 10.2, the number of teeth of the third gear 10.1 is one more than the number of teeth of the fourth gear 10.2, and the number of teeth of the first gear 8.3 is one less than the number of teeth of the second gear 9.1, and is used for greatly reducing the reciprocating motion frequency of the brush transmission shaft.

[0052] Further, in the above technical solution, the cylindrical cam transmission support assembly 8 further comprises a support shaft 8.4, a radial spherical bearing 8.5, a first needle bearing 8.6, and a second needle bearing 8.7, the first gear 8.3 is installed on the radial spherical bearing 8.5, the support shaft 8.4 is fixed on one side close to the transmission support assembly 7, and the other end of the support shaft 8.4 away from the radial spherical bearing 8.5 is fixedly connected with the transmission support assembly 7; the inner hole of one end of the cylindrical cam 8.1 is provided with the first needle bearing 8.6, and the first needle bearing 8.6 is used for supporting the rotation and reciprocating movement of the cylindrical cam 8.1 on the support shaft 8.4; the cylindrical cam 8.1 is provided with a through hole at the corresponding position of the inner end of the first needle bearing 8.6, which is used for eliminating the influence of air pressure when the cylindrical cam 8.1 reciprocates relative to the support shaft 8.4; the second needle bearing 8.7 is arranged between the cylindrical cam transmission support assembly 8 and the ball spline mechanism, is installed on the cylindrical cam 8.1, and is used for supporting the rotation and reciprocating movement of the cylindrical cam 8.1.

[0053] Further, in the above technical solution, the second needle bearing 8.7 is sleeved on the cylindrical cam 8.1, the rotary reciprocating shaft 9.3 is fixedly connected with the cylindrical cam 8.1 through key connection and a set screw, and the rotary reciprocating shaft 9.3 is used for driving the shaft of the ball spline 9.2 to reciprocate.

[0054] The inner periphery of the ball spline 9.2 is uniformly provided with two groups or four groups of longitudinally arranged balls, the balls are embedded in the ball spline groove 9.3.1 of the shaft, are guided by the spline groove, slide in the spline groove, and are used for transmitting torque between the shaft and the ball spline while the balls roll in the axial direction;

[0055] The second gear 9.1 is installed on the ball spline 9.2 and is connected in the circumferential direction through a flat key.

[0056] Further, in the above technical solution, the second gear 9.1 is designed with a stop edge 9.4 on both sides, the stop edge 9.4 is fastened on the ball spline 9.2 through a flat key and a set screw, and is limited with the second gear 9.1;

[0057] The second gear 9.1 is meshingly connected with the fourth gear 10.2, the fourth gear 10.2 is inserted into the stop edge 9.4, and is used for limiting the second gear 9.1 and the ball spline 9.2 in the axial direction while transmitting torque.

[0058] Further, in the above technical solution, the other end of the rotary reciprocating shaft 9.3 away from the cylindrical cam transmission support assembly 8 is installed on a bearing sleeve assembly, the bearing sleeve assembly comprises a bearing sleeve 11.1, a skeleton oil seal 11.2, and a needle bearing 11.3, the skeleton oil seal 11.2 and the needle bearing 11.3 are arranged in the interior of the bearing sleeve 11.1, and the needle bearing 11.3 is used for supporting the rotation of the rotary reciprocating shaft 9.3.

[0059] Further, in the above technical solution, the inside of the rotating reciprocating shaft 9.3 is through a hole, and a rotating shaft 12 is arranged in the hole, the rotating shaft 12 is fastened and connected with the rotating reciprocating shaft 9.3 through a set screw, and the rotating shaft 12 is used for transmitting torque through the half-week boss structure matched with the end of the rotating reciprocating shaft 9.3.

[0060] The inside of the transmission support assembly 7 includes an inner wall plate, a middle wall plate and an outer wall plate, which are used for positioning and fastening bearings, shafts, bearing sleeve assemblies and the like; the inner wall plate, the middle wall plate and the outer wall plate are connected and fastened with the peripheral cover plate into the box plate structure of the transmission support assembly 7 through positioning pins and bolts.

[0061] Further, in the above technical solution, the cylindrical cam 8.1 has two working surfaces, which are respectively a push-out cam working surface and a pull-back cam working surface, and the follow-up roller 8.2 rolls on the working surfaces to cooperate, and is used for pushing the rotating reciprocating shaft 9.3 to move axially reciprocatingly;

[0062] The push-out cam working surface and the pull-back cam working surface are alternately subjected to the thrust of the follow-up roller, and are used for pushing the rotating reciprocating shaft 9.3 to move axially.

[0063] The cylindrical cam 8.1 can adopt a double-reversing type, that is, one rotation is twice axially reciprocating movement, or can adopt a single-reversing type, that is, one rotation is once reciprocating movement.

[0064] The double-reversing type cylindrical cam can be designed and arranged with two pairs of follow-up rollers; the single-reversing type cylindrical cam can be designed and arranged with only one pair of follow-up rollers.

[0065] Specifically, the principle of the present application is that the transmission support assembly 7 drives the third gear 10.1 and the fourth gear 10.2 to rotate, and simultaneously drives the first gear 8.3 and the second gear 9.1 to rotate through meshing, so as to drive the brush 4 to move axially reciprocatingly, the rotation of the second gear 9.1 drives the ball spline 9.2 to rotate, and the brush shaft is circularly rotated while the driving shaft is kept free to move reciprocatingly, the blade 3 is cleaned in real time by the brush 4,

[0066] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A transmission of high speed rotation with additional axial reciprocating motion, characterized in that, The application discloses a water-proof paper drum wheel, a paper cutter, blades, a brush, a left rotating shaft, a right rotating shaft and a transmission support assembly, the paper cutter is used for cutting water-proof paper, the blades are uniformly arranged on the paper cutter and used for cutting the water-proof paper, the water-proof paper drum wheel is in abutment with the paper cutter, the water-proof paper drum wheel is used for conveying water-proof paper and sucking and conveying the water-proof paper pieces cut by the water-proof paper drum wheel and the paper cutter, the brush is arranged on the top of the paper cutter and used for cleaning the blades in real time, the brush is provided with two, the brush is connected with the left rotating shaft, the right rotating shaft and the transmission support assembly, the brush is sleeved on the left rotating shaft and the right rotating rotating shaft, the transmission support assembly is fixed on the rotating mechanism of equipment and used for transmitting power, the rotating directions of the left rotating shaft and the right rotating shaft are same, and the phases are 90 degrees, so that the left rotating shaft and the right rotating shaft realize synchronous reciprocation in the axial direction. The left rotating shaft, the right rotating shaft and the transmission support assembly are provided with a cylindrical cam transmission support assembly and a ball spline mechanism, the cylindrical cam transmission support assembly comprises a cylindrical cam, a follow-up roller and a first gear, the first gear is connected with the transmission support assembly through a bearing, the cylindrical cam is arranged at the end, away from the transmission support assembly, of the first gear, the follow-up roller is arranged on the two sides of the cylindrical cam, and the cylindrical cam, the follow-up roller and the first gear are used for driving the left rotating shaft and the right rotating shaft to make axial reciprocating motion. The ball spline mechanism comprises a second gear and a ball spline, the second gear is installed on the ball spline, the ball spline is fixed at the end, away from the transmission support assembly, of the cylindrical cam transmission support assembly, and is used for keeping the driving shaft to have the freedom of reciprocating motion while driving the brush to rotate in the circumferential direction. The cylindrical cam transmission support assembly further comprises a support shaft, a radial ball bearing, a first needle bearing and a second needle bearing, the first gear is installed on the radial ball bearing, the support shaft is fixed on the side, close to the transmission support assembly, of the radial ball bearing, and the end, away from the radial ball bearing, of the support shaft is fixedly connected with the transmission support assembly; the first needle bearing is installed in the inner hole of one end of the cylindrical cam, and is used for supporting the cylindrical cam to rotate and reciprocate on the support shaft; a through hole is formed in the inner end of the first needle bearing, and is used for eliminating the influence of air pressure when the cylindrical cam reciprocates relative to the support shaft; the second needle bearing is arranged between the cylindrical cam transmission support assembly and the ball spline mechanism, is installed on the cylindrical cam, and is used for supporting the cylindrical cam to rotate and reciprocate. The second needle bearing is sleeved on the cylindrical cam, and the rotating reciprocating shaft is fixedly connected with the rear end of the cylindrical cam through a key and a locking screw.

2. A high speed rotary transmission with superimposed axial reciprocating motion according to claim 1, characterised in that, The intermediate transmission support assembly is provided between the left rotating shaft and the right rotating shaft, and comprises a third gear and a fourth gear, the third gear and the fourth gear are provided on both sides of the intermediate transmission support assembly, the third gear is in meshing connection with the first gear on the left rotating shaft and the right rotating shaft, and the other side is in meshing connection with the rotating mechanism of the device, so as to drive the left rotating shaft and the right rotating shaft to rotate; the fourth gear is in meshing connection with the second gear on the left rotating shaft and the right rotating shaft, so as to drive the second gear to rotate. The cylindrical cam transmission support assemblies on the left rotating shaft and the right rotating shaft are 90° out of phase, so as to drive the left rotating shaft and the right rotating shaft to stagger forward and backward.

3. A high speed rotary transmission with superimposed axial reciprocating motion according to claim 2, characterised in that, The second gear is provided with a stop edge on both sides, the stop edge is fastened on the ball spline through a flat key and a tightening screw, and the second gear is limited in position; The second gear is in meshing connection with the fourth gear, the fourth gear is inserted into the stop edge, so as to limit the second gear and the ball spline in the axial direction while transmitting torque.

4. A high speed rotary transmission with superimposed axial reciprocating motion according to claim 3, characterised in that, The end of the rotating reciprocating shaft away from the cylindrical cam transmission support assembly is mounted on a bearing sleeve assembly, the bearing sleeve assembly comprises a bearing sleeve, a skeleton oil seal and a needle bearing, the skeleton oil seal and the needle bearing are arranged in the bearing sleeve, and the needle bearing is used for supporting the rotation of the rotating reciprocating shaft.

5. A high speed rotary transmission with superimposed axial reciprocating motion according to claim 4, characterised in that, A hole is through the rotating reciprocating shaft, a rotating shaft is arranged in the hole, the rotating shaft is fastened and connected with the rotating reciprocating shaft through a tightening screw, and the rotating shaft is used for transmitting torque through a half-week boss structure matched with the end of the rotating reciprocating shaft.

6. A high speed rotary transmission with superimposed axial reciprocating motion according to claim 5, characterised in that, The cylindrical cam has two working surfaces, namely a push-out cam working surface and a pull-back cam working surface, the follow-up roller rolls on the working surfaces to cooperate, and is used for pushing the rotating reciprocating shaft to move axially reciprocatingly; The push-out cam working surface and the pull-back cam working surface alternately bear the follow-up roller thrust, and are used for pushing the rotating reciprocating shaft to move axially.

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