A glue coating tube transmission mechanism and a gear reduction box glue coating device

Abstract

The present application discloses a glue coating tube transmission mechanism and a gear reduction box glue coating device, which belongs to the technical field of transmission devices, wherein the main technical scheme is a glue coating tube transmission mechanism, which includes a Y-axis motor, an X-axis motor, a Y guide rail, an X guide rail, a first slide, a second slide, a transmission shaft, a moving gear and a gear set, wherein the first slide is slidably connected to the Y guide rail; one end of the X guide rail is fixed to the first slide, and the second slide is slidably connected to the X guide rail; the transmission shaft is parallel to the Y guide rail, the X-axis motor is externally fixed, and the X-axis motor drives the transmission shaft to rotate, and the moving gear is coaxially fixed with a rotating sleeve, the rotating sleeve is non-rotatably connected to the transmission shaft and axially slidably connected, the two ends of the rotating sleeve are rotatably connected to the opposite side walls of the X guide rail, the gear set is arranged on the X guide rail, and the torque of the moving gear is transmitted to the second screw rod through the gear set. The present application can reduce the load of the Y-axis motor, thereby improving the transmission efficiency.

Description

Technical Field

[0001] The present application belongs to the technical field of transmission devices, and relates to a glue coating tube transmission mechanism and a gear reduction box glue coating device. Background Art

[0002] The existing glue coating device uses a driving transmission mechanism to drive the glue coating tube to move along a certain trajectory to form a specific shape of glue coating. Different driving transmission mechanisms are selected according to the different contour shapes to be coated. For example, the Chinese patent application number 2017208370468 discloses a transmission mechanism and a glue coating device, the transmission mechanism includes: a guide rail; a transmission converter, the transmission converter can move linearly in a first direction along the guide rail, and is configured to convert the linear motion into a rotational motion; and a swinger, the swinger is connected to the transmission converter, and the swinger is driven by the rotational motion output by the transmission converter to swing, wherein the plane of the swinging motion of the swinger intersects with the first direction. The transmission mechanism of this technical solution can convert linear motion into a composite motion of linear motion and swinging motion to form a motion trajectory similar to a sawtooth or wave shape.

[0003] The gluing operation on the end face of a conventional reduction gearbox also requires a driving transmission mechanism to drive the gluing tube to move along the contour path of the part of the reduction gearbox to be sealed in order to perform the gluing operation.

[0004] When the contour of the part to be sealed of the reduction gearbox is rectangular or other non-circular, or even irregular, it is necessary to make corresponding adjustments to the driving path of the driving transmission mechanism, that is, the driving path of the driving transmission mechanism needs to be more flexible to adapt to the complex shape of the reduction gearbox contour. For example, Chinese patent application number 2022231713541 discloses a gantry three-axis moving module, including a Y-axis moving module, an X-axis moving module and a Z-axis moving module. That is, for complex contour shapes, this technical solution can be used as a driving transmission mechanism for the glue coating tube to realize the movement of the glue coating tube in three directions, so as to realize arbitrary adjustment of the moving path, so as to adapt to the contour shapes of different reduction gearboxes.

[0005] For planar contour shapes, the driving transmission mechanism often only needs to have X-axis and Y-axis movement drives. Therefore, for working conditions with planar and complex contour shapes, the existing glue coating tube transmission mechanism includes a Y-axis motor, an X-axis motor, a Y-guide rail, an X-guide rail, a first slide, and a second slide, wherein the first slide slides with the Y-guide rail, the Y-axis motor drives the first slide to move through a screw drive, one end of the X-guide rail is fixed to the first slide, and the X-guide rail is perpendicular to the Y-guide rail, that is, the first slide is used to drive the X-guide rail to move in the Y direction, the X-axis motor is fixed on the X-guide rail, the second slide slides with the X-guide rail, the X-axis motor drives the second slide to slide through a screw drive, and the glue coating tube is fixed to the second slide, thereby realizing the movement of the glue coating tube in the X and Y directions.

[0006] The moving path of the above technical solution is extremely flexible and has a simple structure. However, the power of the Y-axis motor needs to drive the glue coating tube, X-axis motor and X-axis guide rail to move at the same time, resulting in a large load on the Y-axis motor, thereby reducing the transmission efficiency. Summary of the invention

[0007] Aiming at the problem of low existing transmission efficiency, a glue coating tube transmission mechanism and a gear reduction box glue coating device are provided.

[0008] In the first aspect, a transmission mechanism for a rubber coating tube is provided, which is specifically implemented by the following technical solutions:

[0009] A rubber coating tube transmission mechanism comprises a Y-axis motor, an X-axis motor, a Y-guide rail, an X-guide rail, a first slide, a second slide, a transmission shaft, a moving gear and a gear set, wherein the first slide is slidably connected to the Y-guide rail, the Y-guide rail is rotatably connected to a first screw rod, the first screw rod is threadedly connected to the first slide, and the Y-axis motor drives the first screw rod to rotate; one end of the X-guide rail is fixed to the first slide, the second slide is slidably connected to the X-guide rail, the X-guide rail is rotatably connected to a second screw rod, the second screw rod is threadedly connected to the second slide; the transmission shaft Parallel to the Y guide rail, mounting seats are provided at both ends of the Y guide rail, and both ends of the transmission shaft are rotatably connected to the mounting seats on both sides respectively. The X guide rail is provided with a through hole for the transmission shaft to pass through, and the X motor is externally fixed. The X motor drives the transmission shaft to rotate, and the moving gear is coaxially fixed with a rotating sleeve. The rotating sleeve is non-rotatably connected to the transmission shaft and axially slidingly connected. Both ends of the rotating sleeve are rotatably connected to the opposite side walls of the X guide rail, and the gear group is arranged on the X guide rail, and the torque of the moving gear is transmitted to the second screw rod through the gear group.

[0010] Through the above technical solution, firstly, the X-axis motor is externally fixed, which can effectively reduce the load of the Y-axis motor, thereby improving the transmission efficiency.

[0011] Secondly, the torque of the X-axis motor can be transmitted to the moving gear through the transmission shaft, and the torque of the moving gear is transmitted to the second lead screw through the gear set to drive the second slide to move in the X-axis.

[0012] Furthermore, since the moving gear is non-rotatably connected to the transmission shaft and axially slidingly connected, when the first slide drives the X-direction guide rail to move in the Y direction, the torque of the transmission shaft can be smoothly transmitted to the moving gear to ensure that the second lead screw is continuously subjected to the torque from the X-direction motor.

[0013] Secondly, by setting the X-guide rail in a cantilever shape, the tooling for fixing the reduction gearbox can be effectively avoided.

[0014] Optionally, the cross section of the transmission shaft is an equilateral triangle, a sliding sleeve is fixed in the rotating sleeve, the sliding sleeve has a triangular hole matched with the outer circumferential surface of the transmission shaft, and the sliding sleeve is axially slidingly connected to the transmission shaft.

[0015] Through the above technical solution, the torque of the transmission shaft can be transmitted to the moving gear through the anti-rotation cooperation between the triangular hole and the transmission shaft, and it can also ensure that the moving gear can move axially relative to the transmission shaft.

[0016] Optionally, the sliding sleeve is provided with three groups of pulleys, the three groups of pulleys are respectively abutted against three surfaces of the transmission shaft, one group of pulleys includes two pulleys, the pulleys are provided with support rods, the support rods are fixed with connecting rods, and the connecting rods are connected to the sliding sleeve.

[0017] Through the above technical solution, by providing a pulley, the smoothness of the sliding of the sliding sleeve relative to the transmission shaft can be improved, thereby improving the transmission efficiency.

[0018] Optionally, the pulley includes a rotating tube, a plurality of steel wheels and a rubber ring sheet, the steel wheel is coaxially fixed on the rotating tube, the rubber ring sheet is coaxially sleeved on the rotating tube, the rubber ring sheet is located between two adjacent steel wheels, the outer diameter of the rubber ring sheet is equal to the outer diameter of the steel wheel, and the outer circumferential surfaces of the rubber ring sheet and the steel wheel both abut against the surface of the transmission shaft; the support rod passes through the rotating tube, the connecting rod is fixed to one end of the support rod, the connecting rod is perpendicular to the axial direction of the rotating tube, the connecting rod is rotatably connected to the sliding sleeve, a transmission gear is coaxially fixed to the end of the connecting rod, a sliding groove parallel to the axis of the transmission shaft is provided in the sliding sleeve, a rack is slidably connected in the sliding groove, and the rack The end of the rack is provided with a driving member for driving the rack to slide, and the two transmission gears are respectively located on the horizontal sides of the rack, and the rack is meshed with the two transmission gears; the rack has a first end and a second end, and the two ends of the slide are respectively set as the first groove surface and the second groove surface; when the rack slides to the first end of the rack and abuts against the first groove surface of the slide, the axes of the two pulleys in the same group are collinear, and the axes of the pulleys are perpendicular to the axis of the transmission shaft; when the rack slides to the second end of the rack and abuts against the second groove surface of the slide, the axes of the two pulleys in the same group are parallel and parallel to the axis of the transmission shaft.

[0019] Through the above technical solution, the rotating tube is rotatably arranged relative to the support rod, and the outer peripheral surfaces of the rubber ring sheet and the steel wheel are both in contact with the surface of the transmission shaft to convert sliding friction into rolling friction, thereby reducing resistance.

[0020] By controlling the two position states of the rack and utilizing the meshing of the rack and the transmission gear, the two angle states of the transmission gear can be switched. In the first angle state, the axes of the two pulleys in the same group are collinear, and the axes of the pulleys are perpendicular to the axes of the transmission shaft, that is, the pulleys can roll smoothly relative to the transmission shaft to reduce resistance. The second angle state is suitable for the situation where the X-guide rail stops moving in the Y direction. At this time, the axes of the two pulleys in the same group are parallel and parallel to the axes of the transmission shaft. The friction between the pulley and the transmission shaft is difficult to drive the pulley to rotate, so that the friction between the rubber ring and the transmission shaft is greatly increased, so as to play a Y-direction braking role on the moving gear, the rotating sleeve and the X-guide rail, so as to reduce the vibration and displacement of the X-guide rail under the action of external force, thereby reducing the structural deformation of the X-guide rail.

[0021] For example, when the transmission shaft is in a horizontal state, the rigid connection strength between the X-guide rail and the transmission shaft is further improved through the braking effect, that is, the X-guide rail is supported by the transmission shaft and the Y-guide rail, and the deformation and bending resistance of the X-guide rail is improved to reduce the deformation of the cantilever end of the X-guide rail due to excessive load, and in the case of Y-direction braking, the rotating sleeve is not easy to move axially with the transmission shaft, so that the torque transmission accuracy of the rotating sleeve is improved, so as to improve the accuracy of the rubber coating tube in the X-direction movement.

[0022] For example, when the transmission shaft is in a vertical state, the braking effect further improves the rigid connection strength between the X-guide rail and the transmission shaft, that is, the load of the X-guide rail is shared by the transmission shaft and the first screw rod, which not only reduces the wear of the first screw rod, but also improves the bearing capacity of the X-guide rail in disguise, thereby reducing the downward bending deformation of the cantilever end of the X-guide rail, thereby ensuring the positioning accuracy of the bidirectional movement of the rubber coating tube.

[0023] Optionally, the rubber ring sheet includes an integrally connected circular ring, a plurality of connecting strips and an annular thickened section, wherein the thickened section is coaxial with the circular ring, the two ends of the connecting strip are respectively connected to the circular ring and the thickened section, the circular ring is sleeved on the rotating tube, and the outer diameter of the thickened section is the outer diameter of the rubber ring sheet; the axial thickness of the thickened section gradually increases in the radial direction away from the circular ring, and a conical surface is provided on the outer edge of the steel wheel, and the conical surface is in contact with the surface of the thickened section; when the axis centers of the two pulleys in the same group are parallel to the axis center of the transmission shaft, the thickened section is subjected to the friction force of the transmission shaft, and the thickened section moves radially away from the axis center of the rotating tube under the guidance of the conical surface, and the connecting strip is elastically stretched.

[0024] Through the above technical scheme, when the thickened section is subjected to the friction force of the transmission shaft, that is, when the X-guide rail has a tendency to be relatively displaced relative to the transmission shaft under the action of external force, the displacement friction force will force the thickened section to deviate axially, and the thickened section moves radially away from the axis of the rotating tube under the guidance of the conical surface, thereby greatly improving the abutment friction between the thickened section and the transmission shaft, thereby effectively resisting the displacement tendency of the X-guide rail, and further improving the position stability of the X-guide rail.

[0025] Optionally, the transmission shaft is configured to be in a cylindrical shape, an axially extending first key block is fixed to the outer circumferential surface of the transmission shaft, and the inner hole of the rotating sleeve is provided with a first key slot matched with the first key block; one end of the transmission shaft is closed, and an end cover is fixed to the other end of the transmission shaft, the inner cavity of the transmission shaft is filled with expansive concrete, the inner cavity of the transmission shaft is coaxially rotatably connected to a stirring rod, the stirring rod is coaxially fixed with a spiral sheet, and the outer circumferential surface of the spiral sheet fits the inner cavity wall of the transmission shaft.

[0026] Through the above technical solution, the first key block and the first key groove cooperate to achieve a non-rotational connection and an axial sliding connection between the rotating sleeve and the transmission shaft.

[0027] By setting expansive concrete and utilizing the expansion characteristics of the expansive concrete, the bending resistance of the transmission shaft is improved to ensure the movement accuracy of the X-guide rail, which is suitable for the case where the transmission shaft is relatively slender.

[0028] By arranging stirring rods and spiral blades, the expansive concrete can be evenly transported to various parts of the inner cavity of the transmission shaft, so that the compressive resistance effect is more balanced. The spiral blades and stirring rods can also play the role of a steel skeleton, further strengthening the structural strength of the expansive concrete, thereby further improving the structural strength of the transmission shaft.

[0029] Optionally, the transmission shaft is set to be in a circular tubular shape, and the outer wall of the transmission shaft is protruded outward to form a first protrusion, the inner contour of the cross-section of the first protrusion is trapezoidal, the axial length of the first protrusion is equal to the axial length of the transmission shaft, and the gap between two adjacent first protrusions on the outer circumference of the transmission shaft is set to a second keyway, and the inner hole of the rotating sleeve is provided with a second key block matched with the second keyway; sealing covers are sealed and fixed at both ends of the transmission shaft, and the inner surface of the sealing cover is covered with a rubber pad, and the inner cavity of the transmission shaft is provided with a reinforcement tube, the wall thickness of the reinforcement tube is less than the wall thickness of the transmission shaft, the outer circumference of the reinforcement tube is attached to the inner circumference of the transmission shaft, and the outer wall of the reinforcement tube is protruded outward to form a second protrusion, the axial length of the second protrusion is equal to the axial length of the reinforcement tube, the second protrusion is matched with the first protrusion, and the two ends of the reinforcement tube are respectively abutted on two rubber pads, and the reinforcement tube is filled with high-pressure gas.

[0030] Through the above technical solution, the second keyway and the second key block cooperate to achieve a non-rotational connection and an axial sliding connection between the rotating sleeve and the transmission shaft.

[0031] By providing the first protrusion and the second protrusion, the protrusion molding structure can greatly improve the bending resistance of the transmission shaft and the reinforcement tube to ensure the movement accuracy of the X-guide rail, and is suitable for the case where the transmission shaft is relatively slender.

[0032] Secondly, the two sealing covers play a fixing role, which can ensure the position stability between the reinforcement tube and the transmission shaft, and the rubber pads thereon also play a role in sealing the reinforcement tube to reduce the leakage of high-pressure gas in the reinforcement tube.

[0033] Furthermore, since there is high-pressure gas in the reinforced tube, the reinforced tube has stress for radial expansion outward, so that the second protrusion is deformed outward, making the second protrusion fit more closely with the first protrusion, thereby further improving the bending resistance of the transmission shaft and the reinforced tube.

[0034] Optionally, a side wall of the first protrusion is provided with an elongated avoidance hole, which extends axially along the transmission shaft; a notch is axially penetrated through the middle of the second protrusion, each of the notches divides the reinforcement tube into a plurality of reinforcement members, the reinforcement member comprises an arc segment, two first right-angle segments and two second right-angle segments, the two first right-angle segments are respectively fixed at one end of the arc segment, the first right-angle segment is arranged radially along the transmission shaft, the second right-angle segment is vertically fixed to the end of the first right-angle segment away from the arc segment, and the gap between the second right-angle segments of the two reinforcement members is the notch; the end of the second right-angle segment abuts against the first protrusion the inner surface of the first right-angle section, a long strip of brake strip is fixed on the surface of the first right-angle section, and the brake strip extends along the axial direction of the transmission shaft; the two sealing covers are respectively connected with an air inlet pipe and an air outlet pipe, and the air inlet pipe and the air outlet pipe are both provided with solenoid valves, the air inlet pipe is used to input gas into the reinforcement pipe, and the air outlet pipe is used to discharge the gas in the reinforcement pipe; when the gas pressure of the reinforcement pipe is applied to the surface of the first right-angle section to force the first right-angle section to elastically offset and deform relative to the circular arc section, the brake strip of the first right-angle section enters the second key groove through the avoidance hole, and the end of the second right-angle section elastically abuts against the inner surface of the first protrusion.

[0035] Through the above technical solution, by providing an air inlet pipe and an air outlet pipe, the enhanced pipe can be inflated or exhausted, thereby controlling the air pressure in the enhanced pipe.

[0036] When the air pressure in the strengthening pipe is relatively low, the first right-angle segment does not deform elastically, and the brake strip thereon is located inside the avoidance hole. At this time, the axial sliding of the rotating sleeve is relatively smooth, and the transmission efficiency is high.

[0037] When the gas pressure in the strengthening tube is relatively high, the gas pressure of the strengthening tube is applied to the surface of the first right-angle segment to force the first right-angle segment to elastically offset and deform relative to the arc segment, and the brake strip of the first right-angle segment enters the second key slot through the avoidance hole, that is, the two brake strips jointly clamp the same second key block, thereby braking the rotating sleeve, so that the rigid connection strength between the X-guide rail and the transmission shaft is further improved, that is, the X-guide rail is supported by the transmission shaft and the Y-guide rail, and the anti-deformation bending ability of the X-guide rail is improved to reduce the deformation of the cantilever end of the X-guide rail due to excessive load. At the same time, it can also improve the bearing capacity of the X-guide rail in disguise, thereby reducing the downward bending deformation of the cantilever end of the X-guide rail, and then ensure the position accuracy of the two-way movement of the rubber coating tube.

[0038] It can be understood that, when the air pressure is controllable, the displacement position of the brake strip can be controlled, thereby controlling the clamping force of the brake strip on the second key block of the rotating sleeve. A moderate clamping force can also be used, which can ensure the axial movement of the rotating sleeve and damp the axial movement, making the axial movement slower and more precise.

[0039] The end of the second right-angle segment continues to abut against the inner surface of the first protrusion. During the elastic deformation of the first right-angle segment, the second right-angle segment is affected by the first right-angle segment, and the abutment between the second right-angle segment and the first protrusion will be greatly improved, further improving the sealing performance to reduce the leakage of gas in the reinforcement tube through the gap.

[0040] That is, by improving the structure of the drive shaft, not only the bending resistance of the drive shaft is greatly improved to ensure the moving position accuracy of the X-guide rail, but also the rigid connection strength between the X-guide rail and the drive shaft can be adjusted, thereby improving the load capacity, moving accuracy and transmission efficiency of the X-guide rail according to different applicable working conditions.

[0041] Optionally, the end of the second right-angle segment is provided with a rounded corner, and the connection between the first right-angle segment and the arc segment and the second right-angle segment is provided with a deformable groove.

[0042] Through the above technical solution, the deformable groove can increase the degree of deformation of the first right-angle segment, making the brake strip easier to move, thereby improving the ease of braking, while the rounded corners can ensure a continuous abutment effect.

[0043] In the second aspect, a gear reducer gluing device is provided, which is specifically implemented by the following technical solution.

[0044] A gluing device for a gear reduction box comprises a gluing tube transmission mechanism.

[0045] The beneficial effects of this application are:

[0046] 1. The Y-direction motor, the X-direction motor, the Y-direction guide rail, the X-direction guide rail, the first slide, the second slide, the transmission shaft, the moving gear and the gear set, so that when the X-direction motor is externally fixed, the torque of the X-direction motor can be transmitted to the second lead screw through the transmission shaft, the moving gear and the gear set in sequence to realize the X-direction movement of the second slide, and the load of the Y-direction motor can be effectively reduced, thereby improving the transmission efficiency;

[0047] 2. By controlling the two positions of the rack and using the meshing of the rack and the transmission gear, the transmission gear can be switched between two angles. In the first angle, the axes of the two pulleys in the same group are collinear, and the axis of the pulley is perpendicular to the axis of the transmission shaft, that is, the pulley can roll smoothly relative to the transmission shaft to reduce resistance. In the second angle, the friction between the rubber ring and the transmission shaft is greatly increased to brake the moving gear, the rotating sleeve and the X-guide rail in the Y direction, so as to reduce the vibration and displacement of the X-guide rail under the action of external force, thereby reducing the structural deformation of the X-guide rail;

[0048] 3. By improving the structure of the transmission shaft, not only the bending resistance of the transmission shaft is greatly improved to ensure the moving position accuracy of the X-guide rail, but also the rigid connection strength between the X-guide rail and the transmission shaft can be adjusted, thereby improving the load capacity, moving accuracy and transmission efficiency of the X-guide rail according to different applicable working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a top view of the rubber coating tube transmission mechanism of Example 1.

[0050] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle.

[0051] Figure 3 This is a cross-sectional view of the transmission shaft of Example 1.

[0052] Figure 4 It is a cross-sectional view of the transmission shaft of Example 2.

[0053] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle.

[0054] Figure 6 yes Figure 4 Partial cross-sectional view along CC direction.

[0055] Figure 7 This is a schematic diagram of Example 2 for showing that the axes of two pulleys are colinear.

[0056] Figure 8 It is a schematic diagram of Embodiment 2 for showing that the second end of the rack abuts against the second groove surface of the slide groove.

[0057] Fig. 9 This is a schematic diagram of Example 2 for showing that the axes of the two pulleys are parallel.

[0058] Fig.10 It is a cross-sectional view of the transmission shaft of Example 3.

[0059] Fig.11 This is a longitudinal cross-sectional view of the transmission shaft of Example 3.

[0060] Fig.12 It is a cross-sectional view of the transmission shaft of Example 4.

[0061] Fig.13 It is a longitudinal cross-sectional view of the transmission shaft of Example 4.

[0062] Fig.14 It is a cross-sectional view of the transmission shaft of Example 5.

[0063] Fig.15 yes Fig.14 A partial enlarged view of point D in the middle.

[0064] Fig.16 It is a longitudinal cross-sectional view of the transmission shaft of Example 5.

[0065] 1. Y guide rail; 2. X guide rail; 3. transmission shaft; 5. pulley; 11. Y motor; 12. first screw rod; 13. first slide seat; 14. mounting seat; 20. through hole; 201. rotating hole; 202. rotating rod; 203. third gear; 204. first bevel gear; 205. second bevel gear; 21. X motor; 211. first gear; 212. second gear; 22. second screw rod; 23. second slide seat; 24. moving gear; 25. rotating sleeve; 251. first keyway; 26. sleeve; 261. triangular hole; 31. first key block; 32. stirring rod; 321. spiral sheet; 322. end cover; 33. first protrusion; 330. second keyway; 331. avoidance hole; 35. strengthening tube; 351. second protrusion; 36, sealing cover; 361, air hole; 362, steel ball; 363, spring; 364, rubber pad; 37, reinforcement; 370, notch; 371, arc segment; 372, first right-angle segment; 373, second right-angle segment; 374, brake strip; 375, fillet; 376, deformable groove; 381, air inlet pipe; 382, ​​air outlet pipe; 39, inflation chamber; 50, rack; 501, first end; 502, second end; 51, rotating tube; 52, steel wheel; 521, conical surface; 53, rubber ring piece; 531, thickened section; 532, connecting strip; 533, circular ring; 54, support rod; 541, anti-slip ring; 55, connecting rod; 56, transmission gear; 57, screw; 58, slide groove; 581, first groove surface; 582, second groove surface. DETAILED DESCRIPTION

[0066] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the attached Figure 1 -Attached Fig.16 Shown in.

[0067] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0068] Example 1

[0069] Embodiment 1 discloses a glue - applying tube driving mechanism, which can output displacement drives in the X - direction and the Y - direction to realize the movement of the glue - applying tube in the X - direction and the Y - direction. The X - direction and the Y - direction can be two directions in the horizontal plane, or two mutually perpendicular directions in the vertical plane. For example, the Y - direction can be vertical and the X - direction can be horizontal. When the glue - applying surface of the workpiece is in the vertical plane, the Y - direction of the glue - applying tube driving mechanism is vertical and the X - direction is horizontal. When the glue - applying surface of the workpiece is in the horizontal plane, the Y - direction and the X - direction of the glue - applying tube driving mechanism are two directions in the horizontal plane.

[0070] In this embodiment, the X - direction and the Y - direction are two mutually perpendicular directions in the horizontal plane.

[0071] As Figure 1 、 Figure 2 、 Figure 3 shown, the glue - applying tube driving mechanism includes a Y - direction motor 11, an X - direction motor 21, a Y - direction guide rail 1, an X - direction guide rail 2, a first sliding seat 13, a second sliding seat 23, a transmission shaft 3, a moving gear 24 and a gear set. The cross - sections of both the Y - direction guide rail 1 and the X - direction guide rail 2 are in the shape of "凵".

[0072] The first sliding seat 13 is slidably connected to the Y - direction guide rail 1. The Y - direction guide rail 1 is rotatably connected with a first lead screw 12. The first lead screw 12 is parallel to the Y - direction guide rail 1. The first lead screw 12 is threadedly connected to the first sliding seat 13. The Y - direction motor 11 is installed at the end of the Y - direction guide rail 1. The output shaft of the Y - direction motor 11 is fixed to the first lead screw 12. The torque of the Y - direction motor 11 is transmitted to the first sliding seat 13 through the first lead screw 12 to drive the first sliding seat 13 to move in the Y - direction.

[0073] One end of the X - direction guide rail 2 is fixed to the first sliding seat 13. The X - direction guide rail 2 is perpendicular to the Y - direction guide rail 1. The second sliding seat 23 is slidably connected to the X - direction guide rail 2. The X - direction guide rail 2 is rotatably connected with a second lead screw 22. The second lead screw 22 is parallel to the X - direction guide rail 2. The second lead screw 22 is threadedly connected to the second sliding seat 23.

[0074] The transmission shaft 3 is parallel to the Y - direction guide rail 1. The transmission shaft 3 is located on one side of the Y - direction guide rail 1. Mounting seats 14 are fixed at both ends of the Y - direction guide rail 1. Both ends of the transmission shaft 3 are rotatably connected to the mounting seats 14 on both sides through bearings.

[0075] The X - direction guide rail 2 is provided with a through - hole 20 for the transmission shaft 3 to pass through. The X - direction motor 21 is externally fixed. The X - direction motor 21 can be fixed to the ground or other external structures. The X - direction motor 21 drives the transmission shaft 3 to rotate. Specifically, a first gear 211 is fixed to the output shaft of the X - direction motor 21, and a second gear 212 is fixed to one end of the transmission shaft 3. The first gear 211 and the second gear 212 are meshed with each other.

[0076] The moving gear 24 is coaxially fixed with a rotating sleeve 25, and both ends of the rotating sleeve 25 are rotatably connected to the opposite side walls of the X-guide rail 2. Specifically, the opposite side walls of the X-guide rail 2 are each provided with a rotating hole 201 coaxial with the through hole 20, and the end of the rotating sleeve 25 is located in the rotating hole 201.

[0077] The rotating sleeve 25 is connected to the transmission shaft 3 in a non-rotational manner and in an axially sliding manner. Specifically, the cross-section of the transmission shaft 3 is an equilateral triangle. A sliding sleeve 26 is fixed inside the rotating sleeve 25. The sliding sleeve 26 has a triangular hole 261 that matches the outer circumferential surface of the transmission shaft 3. The sliding sleeve 26 is connected to the transmission shaft 3 in an axially sliding manner. Through the non-rotational cooperation between the triangular hole 261 and the transmission shaft 3, the torque of the transmission shaft 3 can be transmitted to the moving gear 24, and it can also ensure that the moving gear 24 can move axially relative to the transmission shaft 3.

[0078] The gear set is arranged on the X-guide rail 2, and the torque of the mobile gear 24 is transmitted to the second screw rod 22 through the gear set. Specifically, the X-guide rail 2 is rotatably connected with a rotating rod 202, and the rotating rod 202 is parallel to the transmission shaft 3. The gear set includes a third gear 203, a first bevel gear 204 and a second bevel gear 205, wherein the third gear 203 and the first bevel gear 204 are coaxially fixed on the rotating rod 202, and the second bevel gear 205 is coaxially fixed to the end of the second screw rod 22, the third gear 203 is meshed with the mobile gear 24, and the first bevel gear 204 and the second bevel gear 205 are meshed.

[0079] Example 1 also discloses a gear reducer gluing device, which includes a frame, a glue coating tube and the above-mentioned glue coating tube transmission mechanism, the Y-direction guide rail 1 and the X-direction motor 21 of the glue coating tube transmission mechanism are fixed to the frame (not shown in the figure), the second slide seat 23 of the glue coating tube transmission mechanism is fixed to the glue coating tube (not shown in the figure), and the frame is also provided with a tooling for fixing the reducer.

[0080] The implementation principle of Example 1 is as follows: the torque of the X-direction motor 21 can be transmitted to the moving gear 24 through the transmission shaft 3, and the torque of the moving gear 24 is transmitted to the second screw rod 22 through the gear set to drive the second slide 23 to move in the X direction. In addition, since the moving gear 24 is connected to the transmission shaft 3 in a non-rotating manner and in an axial sliding manner, when the first slide 13 drives the X-direction guide rail 2 to move in the Y direction, the torque of the transmission shaft 3 can be smoothly transmitted to the moving gear 24 to ensure that the second screw rod 22 is continuously subjected to the torque from the X-direction motor 21, that is, the second slide 23 can achieve X-direction and Y-direction movement to cope with the gluing path of the complex outer contour shape of the gear reducer.

[0081] Furthermore, since the X-direction motor 21 is externally fixed, the load of the Y-direction motor 11 can be effectively reduced, thereby improving the transmission efficiency. Secondly, by setting the X-direction guide rail 2 in a cantilever shape, the tooling for fixing the reduction box can be effectively avoided.

[0082] Example 2

[0083] The difference between Example 2 and Example 1 is that Figure 4 As shown, the sleeve 26 is provided with three groups of pulleys 5 , and there is a gap between the triangular hole 261 of the sleeve 26 and the transmission shaft 3 , and the pulleys 5 are located in the gap. The three groups of pulleys 5 are respectively in contact with three surfaces of the transmission shaft 3 , and one group of pulleys 5 includes two pulleys 5 .

[0084] like Figure 5 As shown, the pulley 5 includes a rotating tube 51, a plurality of steel wheels 52 and a rubber ring piece 53. The steel wheels 52 are coaxially fixed on the rotating tube 51, and the rubber ring piece 53 is coaxially sleeved on the rotating tube 51. The rubber ring piece 53 is located between two adjacent steel wheels 52. The rubber ring piece 53 includes a circular ring 533, a plurality of connecting strips 532 and a ring-shaped thickened section 531 that are integrally formed and connected. The circular ring 533, the connecting strips 532 and the thickened section 531 are all made of rubber. The thickened section 531 is coaxial with the circular ring 533. The two ends of the connecting strip 532 are respectively connected to the circular ring 533 and the thickened section 531. The circular ring 533 is sleeved on the rotating tube 51. The outer diameter of the thickened section 531 is the outer diameter of the rubber ring piece 53. The outer diameter of the rubber ring piece 53 is equal to the outer diameter of the steel wheel 52. The outer peripheral surfaces of the rubber ring piece 53 and the steel wheel 52 are both in contact with the surface of the transmission shaft 3.

[0085] The axial thickness of the thickened section 531 gradually increases in the radial direction away from the circular ring 533 . A conical surface 521 is provided on the outer edge of the steel wheel 52 , and the conical surface 521 fits with the surface of the thickened section 531 .

[0086] like Figure 5 , Figure 6 As shown, the rotating tube 51 is penetrated and connected with a support rod 54, that is, the rotating tube 51 can rotate relative to the support rod 54. At the same time, both ends of the support rod 54 are fixed with anti-slip rings 541, and the anti-slip rings 541 are used to limit the rotating tube 51 from separating from the support rod 54. One end of the support rod 54 is fixed with a connecting rod 55, and the connecting rod 55 is perpendicular to the axial direction of the rotating tube 51. The connecting rod 55 penetrates into the sliding sleeve 26, and the connecting rod 55 can rotate relative to the sliding sleeve 26. A transmission gear 56 is coaxially fixed to the end of the connecting rod 55. A sliding groove 58 parallel to the axis of the transmission shaft 3 is provided in the sliding sleeve 26. A rack 50 is slidably connected in the sliding groove 58. The two transmission gears 56 are respectively located on the horizontal sides of the rack 50, and the rack 50 is meshed with the two transmission gears 56.

[0087] The end of the rack 50 is provided with a driving member for driving the rack 50 to slide. In this embodiment, the driving member is a screw 57, which is parallel to the rack 50 and is threadedly connected to the sleeve 26. One end of the screw 57 is rotatably connected to the end of the rack 50, that is, by rotating the screw 57, the rack 50 is driven to move relative to the slide groove 58 through the threaded connection. In other embodiments, the driving member can be an electric push rod, which is installed on the sleeve 26, and the end of the electric push rod is fixedly connected to the rack 50 to drive the rack 50 to move back and forth.

[0088] The rack 50 has a first end 501 and a second end 502 , and two ends of the slide groove 58 are respectively configured as a first groove surface 581 and a second groove surface 582 .

[0089] like Figure 6 , Figure 7 As shown, when the rack 50 slides to the point where the first end 501 of the rack 50 abuts against the first groove surface 581 of the slide groove 58, the axes of the two pulleys 5 in the same group are collinear, and the axes of the pulleys 5 are perpendicular to the axes of the transmission shaft 3. The axes of the pulleys 5 are perpendicular to the axes of the transmission shaft 3, that is, the pulleys 5 can roll smoothly relative to the transmission shaft 3 to reduce the movement resistance of the moving gear 24, thereby improving the transmission efficiency.

[0090] like Figure 8 , Fig. 9 As shown in the figure, when the rack 50 slides to the second end 502 of the rack 50 abuts against the second groove surface 582 of the slide groove 58 (applicable to the situation where the X-direction guide rail 2 stops moving in the Y direction, that is, the second slide seat 23 only moves in the X direction), the axes of the two pulleys 5 in the same group are parallel and parallel to the axis of the transmission shaft 3. Since the friction between the thickened section 531 of the pulley 5 and the transmission shaft 3 makes it difficult to drive the pulley 5 to rotate, the friction between the rubber ring piece 53 and the transmission shaft 3 is greatly increased, so as to play a role in moving the gear 24 and the rotating sleeve. 25 and the Y-direction braking effect of the X-direction guide rail 2, specifically, when the thickened section 531 is subjected to the friction force of the transmission shaft 3, that is, when the X-direction guide rail 2 has a tendency of relative displacement with respect to the transmission shaft 3 under the action of external force, the displacement friction force will force the thickened section 531 to deviate axially, and the thickened section 531 moves radially away from the axial direction of the rotating tube 51 under the guidance of the conical surface 521, and the connecting strip 532 is elastically stretched, so that the abutting friction between the thickened section 531 and the transmission shaft 3 is greatly improved, that is, the braking effect is stronger.

[0091] In the case of braking, the vibration and displacement of the X-guide rail 2 due to the external force will be reduced, thereby reducing the structural deformation of the X-guide rail 2.

[0092] For example, when the transmission shaft 3 is in a horizontal state, under the condition of Y-direction braking, the rotating sleeve 25 is not easy to move axially with the transmission shaft 3, so that the torque transmission accuracy of the rotating sleeve 25 is improved, so as to improve the movement accuracy of the rubber coating tube on the X-direction path.

[0093] For example, when the transmission shaft 3 is in a vertical state, the braking effect further improves the rigid connection strength between the X-guide rail 2 and the transmission shaft 3, that is, the load of the X-guide rail 2 is shared by the transmission shaft 3 and the first screw rod 12, which not only reduces the wear of the first screw rod 12, but also improves the bearing capacity of the X-guide rail 2 in disguise, thereby reducing the downward bending deformation of the cantilever end of the X-guide rail 2 (the cantilever end is the end of the X-guide rail 2 away from the first slide seat 13), thereby ensuring the positioning accuracy of the bidirectional movement of the rubber coating tube.

[0094] Example 3

[0095] The difference between the embodiment 3 and the embodiment 1 is that the sliding sleeve 26 is eliminated, and the rotating sleeve 25 is directly matched with the transmission shaft 3, so that the structure occupies less space, and the slender transmission shaft 3 is strengthened. Specifically, Fig.10 As shown, the transmission shaft 3 is configured to be in a cylindrical shape, and an axially extending first key block 31 is fixed to the outer circumferential surface of the transmission shaft 3. The inner hole of the rotating sleeve 25 is provided with a first key groove 251 adapted to the first key block 31. Through the cooperation of the first key block 31 and the first key groove 251, a non-rotational connection and an axial sliding connection are achieved between the rotating sleeve 25 and the transmission shaft 3.

[0096] like Fig.11 As shown, one end of the transmission shaft 3 is closed, and an end cover 322 is fixed to the other end of the transmission shaft 3. The inner cavity of the transmission shaft 3 is filled with expansive concrete. A stirring rod 32 is coaxially connected to the inner cavity of the transmission shaft 3. A spiral piece 321 is coaxially fixed to the stirring rod 32. The outer peripheral surface of the spiral piece 321 fits the inner cavity wall of the transmission shaft 3.

[0097] The specific installation method is: the end cover 322 is not covered, and the expansive concrete is poured into the transmission shaft 3 to two-thirds of the inner cavity of the transmission shaft 3. Then the stirring rod 32 and the spiral piece 321 are placed in the inner cavity of the transmission shaft 3, ensuring that the outer circumferential surface of the spiral piece 321 fits the inner cavity wall of the transmission shaft 3, so that the stirring rod 32 can rotate relative to the transmission shaft 3, and then the stirring rod 32 is rotated, and the spiral piece 321 will drive the expansive concrete to move axially back and forth in the inner cavity of the transmission shaft 3 to play a role of oscillation and compaction. During the rotation, the remaining expansive concrete is continuously injected into the inner cavity of the transmission shaft 3 to ensure that the inner cavity of the transmission shaft 3 is filled with the expansive concrete. After the expansive concrete solidifies, the end cover 322 is covered and the end cover 322 is welded to the transmission shaft 3 to ensure sealing.

[0098] The implementation principle of Example 3 is: by setting expansive concrete, utilizing the expansive concrete and its expandable characteristics, the expansion force of the expansive concrete is applied to the inner wall of the transmission shaft 3 to improve the bending resistance of the transmission shaft 3 to ensure the movement accuracy of the X-guide rail 2, which is suitable for the case where the transmission shaft 3 is relatively slender.

[0099] By providing the stirring rod 32 and the spiral blade 321, the expansive concrete is evenly transported to various parts of the inner cavity of the transmission shaft 3, so that the expansion force is applied more evenly, and the spiral blade 321 and the stirring rod 32 can also play the role of a steel skeleton, further strengthening the structural strength of the expansive concrete, thereby further improving the structural strength of the transmission shaft 3.

[0100] Example 4

[0101] The difference between the embodiment 4 and the embodiment 1 is that the sliding sleeve 26 is eliminated, and the rotating sleeve 25 is directly matched with the transmission shaft 3, so that the structure occupies less space and the slender transmission shaft 3 is strengthened. Fig.12 , Fig.13 As shown, the transmission shaft 3 is set to be in a circular tubular shape, and the outer wall of the transmission shaft 3 is formed with a first protrusion 33 protruding outward, and there are three first protrusions 33. The inner contour of the cross section of the first protrusion 33 is trapezoidal, and the axial length of the first protrusion 33 is equal to the axial length of the transmission shaft 3. The gap between two adjacent first protrusions 33 on the outer peripheral surface of the transmission shaft 3 is set to be a second keyway 330, and the inner hole of the rotating sleeve 25 is fixed with a second key block (not shown in the figure) adapted to the second keyway 330. Through the cooperation of the second keyway 330 and the second key block, the rotation-stopping connection and axial sliding connection between the rotating sleeve 25 and the transmission shaft 3 are realized.

[0102] A reinforcing tube 35 is provided in the inner cavity of the transmission shaft 3. The wall thickness of the reinforcing tube 35 is smaller than that of the transmission shaft 3. The reinforcing tube 35 is shorter than the transmission shaft 3. The outer circumferential surface of the reinforcing tube 35 is fitted to the inner circumferential surface of the transmission shaft 3. The outer wall of the reinforcing tube 35 is protruded outward to form a second protrusion 351. The axial length of the second protrusion 351 is equal to the axial length of the reinforcing tube 35. The second protrusion 351 is adapted to the first protrusion 33, that is, the second protrusion 351 can be embedded in the inner side of the first protrusion 33. By setting the first protrusion 33 and the second protrusion 351, the protruding molding structure can greatly improve the bending resistance of the transmission shaft 3 and the reinforcing tube 35 to ensure the movement accuracy of the X-guide rail 2, which is suitable for the case where the transmission shaft 3 is relatively slender.

[0103] Both ends of the transmission shaft 3 are sealed and fixed with sealing covers 36. The outer edge shape of the sealing cover 36 is compatible with the first protrusion 33. The sealing cover 36 can be fixed by welding. The sealing cover 36 is used to seal the end of the transmission shaft 3. The inner surface of the sealing cover 36 is covered with a rubber pad 364. The two ends of the reinforcement tube 35 are respectively abutted against the two rubber pads 364, that is, the rubber pad 364 is used to close the end of the reinforcement tube 35.

[0104] One of the sealing covers 36 is provided with a one-way air valve, and the sealing cover 36 is provided with an air hole 361. The one-way air valve includes a steel ball 362 and a spring 363. The steel ball 362 is located in the air hole 361, and the spring 363 is used to force the steel ball 362 to move outward to block the air hole 361. When high-pressure gas is injected into the strengthening tube 35 through the air hole 361, the high-pressure gas forces the steel ball 362 to move away, so that the high-pressure gas enters the strengthening tube 35. After the injection is completed, the gas in the strengthening tube 35 will push the steel ball 362, so that the steel ball 362 blocks the air hole 361 to achieve sealing.

[0105] Since there is high-pressure gas in the reinforcing tube 35, the reinforcing tube 35 has stress for radial expansion outward, so that the second protrusion 351 is deformed outward, making the second protrusion 351 fit more closely with the first protrusion 33, thereby further improving the bending resistance of the transmission shaft 3 and the reinforcing tube 35.

[0106] Example 5

[0107] The difference between Example 5 and Example 4 is that the integrated strengthening tube 35 of Example 4 is split into two parts. Fig.14 , Fig.15 As shown, a notch 370 is axially penetrated through the middle of the second protrusion 351, and each notch 370 divides the reinforcement tube 35 into a plurality of reinforcement members 37. In this embodiment, there are three reinforcement members 37, which include an arc segment 371, two first right-angle segments 372 and two second right-angle segments 373. The two first right-angle segments 372 are respectively fixed to one end of the arc segment 371, the first right-angle segment 372 is arranged along the radial direction of the transmission shaft 3, and the second right-angle segment 373 is vertically fixed to one end of the first right-angle segment 372 away from the arc segment 371. The arc segment 371, the first right-angle segment 372 and the second right-angle segment 373 are all bent and formed as one piece, and the gap between the second right-angle segments 373 of the two reinforcement members 37 is the above-mentioned notch 370.

[0108] Deformable grooves 376 are provided at the connection between the first right-angle section 372 and the arc section 371 and the second right-angle section 373, and a rounded corner 375 is provided at the end of the second right-angle section 373. The end of the second right-angle section 373 abuts against the inner surface of the first protrusion 33, that is, each reinforcement part 37 and the inner surface of the first protrusion 33 together form an inflation cavity 39, and the two sealing covers 36 respectively seal the two ends of the inflation cavity 39, so that the inflation cavity 39 is closed.

[0109] The side wall of the first protrusion 33 is provided with a long avoidance hole 331, which extends along the axial direction of the transmission shaft 3. A long brake strip 374 is fixed to the surface of the first right-angle section 372, which extends along the axial direction of the transmission shaft 3. The brake strip 374 can be made of the same metal material as the first right-angle section 372, or can be made of rubber.

[0110] like Fig.16 As shown, the two sealing covers 36 are respectively connected to an air inlet pipe 381 and an air outlet pipe 382, ​​and the air inlet pipe 381 and the air outlet pipe 382 are both provided with solenoid valves (not shown in the figure). The air inlet pipe 381 is used to input gas into the strengthening pipe 35, and the air outlet pipe 382 is used to discharge the gas in the strengthening pipe 35. That is, by setting the air inlet pipe 381 and the air outlet pipe 382, ​​the inflation chamber 39 can be inflated or exhausted, thereby controlling the air pressure in the inflation chamber 39.

[0111] When the air pressure in the inflation chamber 39 is relatively low, the first right-angle segment 372 does not deform elastically, and the brake strip 374 thereon is located inside the avoidance hole 331 . At this time, the axial sliding movement of the rotating sleeve 25 relative to the transmission shaft 3 is relatively smooth, and the transmission efficiency is high.

[0112] When the air pressure in the inflation chamber 39 is relatively high, the gas pressure of the reinforcing tube 35 is applied to the surface of the first right-angle segment 372 to force the first right-angle segment 372 to elastically offset and deform relative to the arc segment 371. The brake strip 374 of the first right-angle segment 372 enters the second key slot 330 through the avoidance hole 331, that is, the two brake strips 374 jointly clamp the same second key block, thereby braking the rotating sleeve 25, so that the rigid connection strength between the X-guide rail 2 and the transmission shaft 3 is further improved, and the X-guide rail 2's ability to resist deformation and bending is further improved.

[0113] Secondly, when the air pressure is controllable, the displacement position of the brake strip 374 can be controlled, thereby controlling the clamping force of the brake strip 374 on the second key block of the rotating sleeve 25. A moderate clamping force can also be used to ensure the axial movement of the rotating sleeve 25 while damping the axial movement, making the axial movement slower and more precise.

[0114] Furthermore, the second right-angle section 373 has an outward abutting force on the inner surface of the first protruding portion 33 , which can further improve the anti-deformation capability of the transmission shaft 3 .

[0115] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A rubber coating tube transmission mechanism, characterized in that: The invention comprises a Y-direction motor (11), an X-direction motor (21), a Y-direction guide rail (1), an X-direction guide rail (2), a first slide seat (13), a second slide seat (23), a transmission shaft (3), a moving gear (24) and a gear set, wherein the first slide seat (13) is slidably connected to the Y-direction guide rail (1), the Y-direction guide rail (1) is rotatably connected to a first screw rod (12), the first screw rod (12) is threadedly connected to the first slide seat (13), and the Y-direction motor (11) drives the first screw rod (12) to rotate; one end of the X-direction guide rail (2) is fixed to the first slide seat (13), the second slide seat (23) is slidably connected to the X-direction guide rail (2), and the X-direction guide rail (2) is rotatably connected to the first screw rod (12). A second screw rod (22) is connected, and the second screw rod (22) is threadedly connected to the second slide seat (23); the transmission shaft (3) is parallel to the Y-direction guide rail (1), and both ends of the Y-direction guide rail (1) are provided with mounting seats (14), and the two ends of the transmission shaft (3) are respectively rotatably connected to the mounting seats (14) on both sides; the X-direction guide rail (2) is provided with a through hole (20) for the transmission shaft (3) to pass through; the X-direction motor (21) is externally fixed, and the X-direction motor (21) drives the transmission shaft (3) to rotate; the moving gear (24) is coaxially fixed with a rotating sleeve (25), and the rotating sleeve (25) is connected to the transmission shaft (3) in a non-rotating manner and in an axial sliding manner, and the rotating The two ends of the sleeve (25) are rotatably connected to the opposite side walls of the X-direction guide rail (2); a gear set is arranged on the X-direction guide rail (2); the torque of the moving gear (24) is transmitted to the second screw rod (22) through the gear set; the cross section of the transmission shaft (3) is an equilateral triangle; a sliding sleeve (26) is fixed inside the rotating sleeve (25); the sliding sleeve (26) has a triangular hole (261) matched with the outer peripheral surface of the transmission shaft (3); the sliding sleeve (26) is axially slidably connected to the transmission shaft (3); the sliding sleeve (26) is provided with three groups of pulleys (5), the three groups of pulleys (5) are respectively abutted against three surfaces of the transmission shaft (3), and one group of pulleys (5) includes Two pulleys (5), each pulley (5) being provided with a support rod (54), a connecting rod (55) being fixed to the support rod (54), and the connecting rod (55) being connected to the sliding sleeve (26); the pulley (5) comprising a rotating tube (51), a plurality of steel wheels (52) and a rubber ring sheet (53), the steel wheels (52) being coaxially fixed to the rotating tube (51), the rubber ring sheet (53) being coaxially sleeved on the rotating tube (51), the rubber ring sheet (53) being located between two adjacent steel wheels (52), the outer diameter of the rubber ring sheet (53) being equal to the outer diameter of the steel wheels (52), and the outer circumferential surfaces of the rubber ring sheet (53) and the steel wheels (52) both being in contact with the surface of the transmission shaft (3);The support rod (54) passes through the rotating tube (51), and the connecting rod (55) is fixed to one end of the support rod (54). The connecting rod (55) is perpendicular to the axial direction of the rotating tube (51), and the connecting rod (55) is rotatably connected to the sliding sleeve (26). A transmission gear (56) is coaxially fixed to the end of the connecting rod (55). A sliding groove (58) parallel to the axis of the transmission shaft (3) is provided in the sliding sleeve (26). A rack (50) is slidably connected in the sliding groove (58). A driving member for driving the rack (50) to slide is provided at the end of the rack (50). Two transmission gears (56) are respectively located on two horizontal sides of the rack (50), and the rack (50) is meshed with the two transmission gears (56); the rack (50) is meshed with the two transmission gears (56); 50) has a first end (501) and a second end (502), and the two ends of the slide groove (58) are respectively set as a first groove surface (581) and a second groove surface (582); when the rack (50) slides to the first end (501) of the rack (50) abuts against the first groove surface (581) of the slide groove (58), the axes of the two pulleys (5) in the same group are collinear, and the axes of the pulleys (5) are perpendicular to the axis of the transmission shaft (3); when the rack (50) slides to the second end (502) of the rack (50) abuts against the second groove surface (582) of the slide groove (58), the axes of the two pulleys (5) in the same group are parallel and parallel to the axis of the transmission shaft (3).

2. The rubber coating tube transmission mechanism according to claim 1 is characterized in that: The rubber ring piece (53) comprises an integrally formed circular ring (533), a plurality of connecting strips (532) and an annular thickened section (531), wherein the thickened section (531) is coaxial with the circular ring (533), the two ends of the connecting strip (532) are respectively connected to the circular ring (533) and the thickened section (531), the circular ring (533) is sleeved on the rotating tube (51), the outer diameter of the thickened section (531) is the same as the outer diameter of the rubber ring piece (53); the axial thickness of the thickened section (531) is radially The thickness of the thickened section (531) gradually increases in a direction away from the circular ring (533); a conical surface (521) is provided on the outer edge of the steel wheel (52), and the conical surface (521) fits with the surface of the thickened section (531); when the axes of the two pulleys (5) in the same group are parallel to the axis of the transmission shaft (3), the thickened section (531) is subjected to the friction force of the transmission shaft (3), and the thickened section (531) moves radially in a direction away from the axis of the rotating tube (51) under the guidance of the conical surface (521), and the connecting strip (532) is elastically stretched.

3. The rubber coating tube transmission mechanism according to claim 1 is characterized in that: The transmission shaft (3) is configured to be in a circular tubular shape; an axially extending first key block (31) is fixed to the outer circumferential surface of the transmission shaft (3); an inner hole of the rotating sleeve (25) is provided with a first key groove (251) adapted to the first key block (31); one end of the transmission shaft (3) is closed; an end cover (322) is fixed to the other end of the transmission shaft (3); an inner cavity of the transmission shaft (3) is filled with expansive concrete; a stirring rod (32) is coaxially rotatably connected to the inner cavity of the transmission shaft (3); a spiral sheet (321) is coaxially fixed to the stirring rod (32); and an outer circumferential surface of the spiral sheet (321) fits the inner cavity wall of the transmission shaft (3).

4. The rubber coating tube transmission mechanism according to claim 1 is characterized in that: The transmission shaft (3) is configured as a circular tube; the outer wall of the transmission shaft (3) is formed with a first protrusion (33) protruding outward; the inner contour of the cross section of the first protrusion (33) is trapezoidal; the axial length of the first protrusion (33) is equal to the axial length of the transmission shaft (3); the gap between two adjacent first protrusions (33) on the outer peripheral surface of the transmission shaft (3) is configured as a second keyway (330); the inner hole of the rotating sleeve (25) is provided with a second key block adapted to the second keyway (330); sealing covers (36) are sealed and fixed at both ends of the transmission shaft (3); the inner surface of the sealing cover (36) covers A rubber pad (364) is provided in the inner cavity of the transmission shaft (3). A reinforcing tube (35) is provided. The wall thickness of the reinforcing tube (35) is smaller than the wall thickness of the transmission shaft (3). The outer peripheral surface of the reinforcing tube (35) is in contact with the inner peripheral surface of the transmission shaft (3). The outer wall of the reinforcing tube (35) is formed with a second protruding portion (351) protruding outward. The axial length of the second protruding portion (351) is equal to the axial length of the reinforcing tube (35). The second protruding portion (351) is matched with the first protruding portion (33). The two ends of the reinforcing tube (35) are respectively in contact with two rubber pads (364). The reinforcing tube (35) is filled with high-pressure gas.

5. The rubber coating tube transmission mechanism according to claim 4 is characterized in that: The side wall of the first protruding portion (33) is provided with a long strip-shaped avoidance hole (331), and the avoidance hole (331) extends along the axial direction of the transmission shaft (3); a notch (370) is axially penetrated through the middle of the second protruding portion (351), and each notch (370) divides the strengthening tube (35) into a plurality of strengthening members (37), and the strengthening member (37) comprises an arc segment (371), two first right-angle segments (372) and two second right-angle segments (373 ), the two first right-angle sections (372) are respectively fixed at the two ends of the arc section (371), the first right-angle section (372) is arranged along the radial direction of the transmission shaft (3), the second right-angle section (373) is vertically fixed to the end of the first right-angle section (372) away from the arc section (371), the gap between the second right-angle sections (373) of the two reinforcement members (37) is the notch (370); the end of the second right-angle section (373) abuts against the first protrusion (3 3), a long strip-shaped brake strip (374) is fixed on the surface of the first right-angle section (372), and the brake strip (374) extends along the axial direction of the transmission shaft (3); the two sealing covers (36) are respectively connected to an inlet pipe (381) and an outlet pipe (382), and the inlet pipe (381) and the outlet pipe (382) are both provided with solenoid valves, the inlet pipe (381) is used to input gas into the strengthening pipe (35), and the outlet pipe (382) is used to discharge gas. The gas in the reinforcing tube (35) is strengthened; when the gas pressure of the reinforcing tube (35) is applied to the surface of the first right-angle section (372) to force the first right-angle section (372) to elastically deflect and deform relative to the arc section (371), the braking strip (374) of the first right-angle section (372) passes through the avoidance hole (331) and enters the second key groove (330), and the end of the second right-angle section (373) elastically abuts against the inner surface of the first protrusion (33).

6. The rubber coating tube transmission mechanism according to claim 5 is characterized in that: The end of the second right-angle section (373) is provided with a rounded corner (375), and the connection between the first right-angle section (372) and the circular arc section (371) and the second right-angle section (373) is provided with a deformable groove (376).

7. A gear reducer gluing device, characterized in that: It comprises the rubber coating tube transmission mechanism as described in any one of claims 1-6.

Images