Wear-resistant spline shaft assembly with buffering anti-collision deformation component and preparation method

Abstract

The present invention discloses a wear-resistant spline shaft assembly with a buffer anti-collision deformation component and a preparation method thereof, including a spline shaft assembly composed of a mounting shaft, a spline shaft and a mounting flange, and the present invention relates to the technical field of spline shaft assemblies. The wear-resistant spline shaft assembly with a buffer anti-collision deformation component and the preparation method thereof, by providing a buffer mechanism, utilizes the movement of the insertion shaft to cause the convex strip on the support plate to move inside the groove, and causes the transmission rack to drive the transmission gear to rotate, at which time the winding wheel drives the pulling rope to extend until the movement stops and the limit column moves to the end of the limit groove, and at the same time the convex strip also drives the buffer spring to contact the groove for extrusion buffering, thereby realizing a two-way limit buffering operation during the movement, effectively avoiding collision damage between shafts, and avoiding the problem of repeated vibration after spring elastic buffering, thereby making the spline shaft assembly more durable.

Description

Technical Field

[0001] The invention relates to the technical field of spline shaft assemblies, and in particular to a wear-resistant spline shaft assembly with a buffering anti-collision deformation component and a preparation method thereof. Background Art

[0002] The spline shaft is a type of mechanical transmission. It has the same function as the flat key, semicircular key and wedge key, which are all used to transmit mechanical torque. There are longitudinal keyways on the surface of the shaft, and the rotating parts on the shaft also have corresponding keyways, which can keep rotating synchronously with the shaft. While rotating, some can also slide longitudinally on the shaft, such as the gearbox shift gear.

[0003] During the use of the existing spline shaft assembly, lateral movement may easily cause collision between shafts, which will shorten the service life of the spline shaft assembly and make it prone to damage and wear. Therefore, the present invention provides a wear-resistant spline shaft assembly with a buffer and anti-collision deformation component and a preparation method. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a wear-resistant spline shaft assembly with a buffering and anti-collision deformation component and a preparation method, which solves the problem that during the use of the existing spline shaft assembly, the lateral movement easily causes collisions between shafts, which in the long run shortens the service life of the spline shaft assembly and makes it prone to damage and wear.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a wear-resistant spline shaft assembly with a buffering anti-collision deformation component, comprising a spline shaft assembly consisting of a mounting shaft, a spline shaft and a mounting flange, the surface of the spline shaft and the interior of the mounting flange are fixed through, a buffer mechanism is arranged between the mounting shaft and the spline shaft, the buffer mechanism comprises a central rotating shaft, one end of the spline shaft is fixedly connected to an insertion shaft, the surface of the insertion shaft is fixedly connected to a support plate, the surface of the support plate is fixedly connected to a convex strip, and one side of the convex strip is fixedly connected to a transmission rack, one side of the mounting shaft is provided with an insertion groove, the inner surface of the insertion groove is provided with a groove, the inner side of the groove is provided with a through groove, both ends of the central rotating shaft are rotatably connected to the inner surface of the through groove, a limiting component is arranged on the surface of the central rotating shaft, the surface of the central rotating shaft is fixedly connected to a transmission gear, the insertion shaft is slidably connected to the surface of the insertion groove, the convex strip is slidably connected to the surface of the groove, a buffer spring is fixedly connected to one side of the convex strip, and one end of the buffer spring contacts the surface of the groove, and the transmission gear meshes with the surface of the transmission rack.

[0006] Preferably, the limiting assembly includes a fixing plate, the fixing plate is fixedly mounted on the inner surface of the through slot, the surface of the central rotating shaft is fixedly connected to a winding wheel, and the surface of the winding wheel is fixedly connected to a pulling rope.

[0007] Preferably, the surface of the pull rope slides through the fixed plate, the surface of the pull rope is supported by a support assembly, one end of the pull rope is fixedly connected to the movable plate, the bottom of the movable plate is fixedly connected to the limiting column, and the bottom end of the limiting column extends through and into the interior of the insertion slot.

[0008] Preferably, a limiting groove is provided on the surface of the insertion shaft, the surface of the limiting column is slidably connected to the surface of the limiting groove, the surface of the pulling rope is sleeved with a reset spring, and the two ends of the reset spring are fixedly connected to the opposite sides of the fixed plate and the movable plate.

[0009] Preferably, the support assembly includes a support shaft, both ends of which are rotatably connected to the inner surface of the through slot, a support wheel is fixedly connected to the surface of the support shaft, and the surface of the pull rope contacts the surface of the support wheel.

[0010] Preferably, the surface of the spline shaft assembly is provided with a substrate layer, a corrosion-resistant layer and a wear-resistant layer, the top of the substrate layer and the bottom of the corrosion-resistant layer are fixedly bonded by an adhesive, and the top of the corrosion-resistant layer and the bottom of the wear-resistant layer are fixedly bonded by an adhesive.

[0011] Preferably, the corrosion-resistant layer includes a nitrile-modified phenolic resin layer, an epoxy resin layer, an alkyd resin layer and a polyetheresteramide layer, the top of the nitrile-modified phenolic resin layer is fixedly connected to the bottom of the epoxy resin layer, the top of the epoxy resin layer is fixedly connected to the bottom of the alkyd resin layer, and the top of the alkyd resin layer is fixedly connected to the bottom of the polyetheresteramide layer.

[0012] Preferably, the wear-resistant layer includes a polypropylene resin layer, a polyurethane resin layer, a polyetherimide layer and a polyetheretherketone layer, the top of the polypropylene resin layer is fixedly connected to the bottom of the polyurethane resin layer, the top of the polyurethane resin layer is fixedly connected to the bottom of the etherimide layer, and the top of the etherimide layer is fixedly connected to the bottom of the polyetheretherketone layer.

[0013] The present invention also discloses a method for preparing a wear-resistant spline shaft assembly with a buffering anti-collision deformation component, which specifically comprises the following steps:

[0014] S1. Product processing: First, lathe the required spline shaft, and clean and remove dust from the spline shaft for subsequent use;

[0015] S2. Product use: At this time, the installation shaft and the spline shaft are a whole, and the spline shaft will move during use. At this time, the movement of the inserted shaft will cause the convex strip on the support plate to move inside the groove, and the transmission rack will drive the transmission gear to rotate, thereby driving the rotation of the central shaft and the winding wheel. At this time, the winding wheel drives the pulling rope to extend, and the pulling rope will be pulled by the elasticity of the reset spring until the movement stops and the limit column moves to the end of the limit groove. At the same time, the convex strip will also drive the buffer spring to contact the groove for extrusion and buffering.

[0016] Preferably, the pulling rope in S2 is in a tensioned state when it is telescopically moved under the contact support of the supporting shaft and the supporting wheel.

[0017] Beneficial Effects

[0018] The present invention provides a wear-resistant spline shaft assembly with a buffering anti-collision deformation component and a preparation method thereof. Compared with the prior art, it has the following beneficial effects:

[0019] (1) The wear-resistant spline shaft assembly with a buffer anti-collision deformation component and its preparation method are provided with a buffer mechanism. The movement of the inserted shaft causes the convex strip on the support plate to move inside the groove, and causes the transmission rack to drive the transmission gear to rotate, thereby driving the rotation of the central shaft and the winding wheel. At this time, the winding wheel drives the pulling rope to extend, and the pulling rope will be pulled by the elasticity of the reset spring until the movement stops and the limit column moves to the end of the limit groove. At the same time, the convex strip will also drive the buffer spring to contact the groove for extrusion and buffering, thereby realizing a two-way limit buffering operation during the movement, effectively avoiding collision damage between shafts, and avoiding the problem of repeated vibration after spring elastic buffering, thereby making the spline shaft assembly more durable.

[0020] (2) The wear-resistant spline shaft assembly with a buffer and anti-collision deformation component and its preparation method are provided with a substrate layer, a corrosion-resistant layer and a wear-resistant layer, and the materials are evenly applied to the surfaces of various structural parts of the spline shaft assembly by a sprayer, and the corrosion-resistant layer and the wear-resistant layer are formed after drying, thereby improving the corrosion resistance and wear resistance of the spline shaft assembly and improving the durability of the spline shaft assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an external three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a disassembled diagram of the external three-dimensional structure of the present invention;

[0023] Figure 3 It is a three-dimensional structural cross-sectional view of the installation shaft of the present invention;

[0024] Figure 4 It is a three-dimensional structural diagram of the buffer mechanism of the present invention;

[0025] Figure 5 For the present invention Figure 4 A magnified view of the local structure at center A;

[0026] Figure 6 For the present invention Figure 4 A magnified view of the local structure at B in the middle;

[0027] Figure 7 Schematic diagram of the layer structure of the substrate layer of the present invention;

[0028] Figure 8 Schematic diagram of the layer structure of the corrosion-resistant layer of the present invention;

[0029] Fig. 9 Schematic diagram of the layer structure of the wear-resistant layer of the present invention;

[0030] Fig.10 It is a process flow chart of the preparation method of the present invention.

[0031] In the figure: 1-mounting shaft, 2-spline shaft, 3-mounting flange, 4-buffer mechanism, 41-center shaft, 42-insertion shaft, 43-support plate, 44-convex strip, 45-transmission rack, 46-insertion groove, 47-groove, 48-through groove, 49-limiting assembly, 49-1-fixed plate, 49-2-winding wheel, 49-3-pulling rope, 49-4-support assembly, 49-41-support shaft, 49-42-support wheel, 4 9-5-movable plate, 49-6-limiting column, 49-7-limiting groove, 49-8-reset spring, 410-transmission gear, 411-buffer spring, 5-base material layer, 6-corrosion-resistant layer, 61-nitrile modified phenolic resin layer, 62-epoxy resin layer, 63-alkyd resin layer, 64-polyether ester amide layer, 7-wear-resistant layer, 71-polypropylene resin layer, 72-polyether ether ketone layer, 73-ether imide layer, 74-polyether ether ketone layer. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-10 , the present invention provides three technical solutions:

[0034] Embodiment 1

[0035] A wear-resistant spline shaft assembly with a buffering anti-collision deformation component includes a spline shaft assembly consisting of a mounting shaft 1, a spline shaft 2 and a mounting flange 3. The surface of the spline shaft 2 is fixedly penetrated by the inside of the mounting flange 3. A buffer mechanism 4 is arranged between the mounting shaft 1 and the spline shaft 2. The buffer mechanism 4 includes a central rotating shaft 41. An insertion shaft 42 is fixedly connected to one end of the spline shaft 2. A support plate 43 is fixedly connected to the surface of the insertion shaft 42. A convex strip 44 is fixedly connected to the surface of the support plate 43. A transmission rack 45 is fixedly connected to one side of the convex strip 44. An insertion groove 46 is provided on one side of the mounting shaft 1. A groove 47 is provided on the inner surface of the insertion groove 46, and a through groove 48 is provided on the inner side of the groove 47. Both ends of the center shaft 41 are rotatably connected to the inner surface of the through groove 48. A limiting assembly 49 is provided on the surface of the center shaft 41. A transmission gear 410 is fixedly connected to the surface of the center shaft 41. The insertion shaft 42 is slidably connected to the surface of the insertion groove 46. The convex strip 44 is slidably connected to the surface of the groove 47. A buffer spring 411 is fixedly connected to one side of the convex strip 44, and one end of the buffer spring 411 contacts the surface of the groove 47. The transmission gear 410 is meshed with the surface of the transmission rack 45.

[0036] Embodiment 2

[0037] A wear-resistant spline shaft assembly with a buffering anti-collision deformation component includes a spline shaft assembly consisting of a mounting shaft 1, a spline shaft 2 and a mounting flange 3. The surface of the spline shaft assembly is provided with a substrate layer 5, a corrosion-resistant layer 6 and a wear-resistant layer 7. The top of the substrate layer 5 is fixedly bonded to the bottom of the corrosion-resistant layer 6 by an adhesive, and the top of the corrosion-resistant layer 6 is fixedly bonded to the bottom of the wear-resistant layer 7 by an adhesive. The corrosion-resistant layer 6 includes a nitrile-modified phenolic resin layer 61, an epoxy resin layer 62, an alkyd resin layer 63 and a polyetheresteramide layer 64. The top of the nitrile-modified phenolic resin layer 61 is fixedly connected to the bottom of the epoxy resin layer 62, the top of the epoxy resin layer 62 is fixedly connected to the bottom of the alkyd resin layer 63, and the top of the alkyd resin layer 63 is fixedly connected to the polyetheresteramide layer 64. The top of the polypropylene resin layer 71 is fixedly connected to the bottom of the polyurethane resin layer 72, the top of the polyurethane resin layer 72 is fixedly connected to the bottom of the etherimide layer 73, the top of the etherimide layer 73 is fixedly connected to the bottom of the polyetheretherketone layer 74, the surface of the spline shaft 2 is fixedly penetrated and fixed to the inside of the mounting flange 3, a buffer mechanism 4 is arranged between the mounting shaft 1 and the spline shaft 2, the buffer mechanism 4 includes a central rotating shaft 41, one end of the spline shaft 2 is fixedly connected to an insertion shaft 42, the surface of the insertion shaft 42 is fixedly connected to a support plate 43, the surface of the support plate 43 is fixedly connected to a convex strip 44, and one side of the convex strip 44 is fixedly connected A transmission rack 45 is connected, an insertion groove 46 is provided on one side of the mounting shaft 1, a groove 47 is provided on the inner surface of the insertion groove 46, a through groove 48 is provided on the inner side of the groove 47, both ends of the central rotating shaft 41 are rotatably connected to the inner surface of the through groove 48, a limiting assembly 49 is provided on the surface of the central rotating shaft 41, and the limiting assembly 49 includes a fixed plate 49-1, and the fixed plate 49-1 is fixedly installed on the inner surface of the through groove 48, a winding wheel 49-2 is fixedly connected to the surface of the winding wheel 49-2, a pulling rope 49-3 is fixedly connected to the surface of the pulling rope 49-3, the surface of the pulling rope 49-3 slides through the fixed plate 49-1, the surface of the pulling rope 49-3 is supported by the supporting assembly 49-4, and one end of the pulling rope 49-3 is fixedly connected to the moving plate 49-5 The bottom of the movable plate 49-5 is fixedly connected to the limiting column 49-6, and the bottom end of the limiting column 49-6 extends through the inside of the insertion slot 46. The surface of the insertion shaft 42 is provided with a limiting slot 49-7. The surface of the limiting column 49-6 is slidably connected to the surface of the limiting slot 49-7. The surface of the pull rope 49-3 is sleeved with a return spring 49-8. The two ends of the return spring 49-8 are fixedly connected to the opposite sides of the fixed plate 49-1 and the movable plate 49-5. The support assembly 49-4 includes a support shaft 49-41. The two ends of the support shaft 49-41 are rotatably connected to the inner surface of the through slot 48. The surface of the support shaft 49-41 is fixedly connected to a support wheel 49-42. The surface of the pull rope 49-3 contacts the surface of the support wheel 49-42.The surface of the central shaft 41 is fixedly connected with a transmission gear 410, the insertion shaft 42 is slidably connected with the surface of the insertion groove 46, the convex strip 44 is slidably connected with the surface of the groove 47, a buffer spring 411 is fixedly connected to one side of the convex strip 44, and one end of the buffer spring 411 contacts the surface of the groove 47, and the transmission gear 410 is meshed with the surface of the transmission rack 45.

[0038] Embodiment 3

[0039] A wear-resistant spline shaft assembly with a buffering anti-collision deformation component includes a spline shaft assembly consisting of a mounting shaft 1, a spline shaft 2 and a mounting flange 3. The surface of the spline shaft assembly is provided with a substrate layer 5, a corrosion-resistant layer 6 and a wear-resistant layer 7. The top of the substrate layer 5 is fixedly bonded to the bottom of the corrosion-resistant layer 6 by an adhesive, and the top of the corrosion-resistant layer 6 is fixedly bonded to the bottom of the wear-resistant layer 7 by an adhesive. The corrosion-resistant layer 6 includes a nitrile-modified phenolic resin layer 61, an epoxy resin layer 62, an alkyd resin layer 63 and a polyetheresteramide layer 64. The top of the nitrile-modified phenolic resin layer 61 is fixedly connected to the bottom of the epoxy resin layer 62, the top of the epoxy resin layer 62 is fixedly connected to the bottom of the alkyd resin layer 63, and the top of the alkyd resin layer 63 is fixedly connected to the polyetheresteramide layer 64. The bottom is fixedly connected, the wear-resistant layer 7 includes a polypropylene resin layer 71, a polyurethane resin layer 72, a polyetherimide layer 73 and a polyetheretherketone layer 74, the top of the polypropylene resin layer 71 is fixedly connected to the bottom of the polyurethane resin layer 72, the top of the polyurethane resin layer 72 is fixedly connected to the bottom of the etherimide layer 73, and the top of the etherimide layer 73 is fixedly connected to the bottom of the polyetheretherketone layer 74. By providing a substrate layer 5, a corrosion-resistant layer 6 and a wear-resistant layer 7, and applying the material evenly on the surface of each structural part of the spline shaft assembly by a sprayer, and forming a corrosion-resistant layer 6 and a wear-resistant layer 7 after drying, the corrosion resistance and wear resistance of the spline shaft assembly are improved, and the durability of the spline shaft assembly is improved. The surface of the spline shaft 2 and the inner surface of the mounting flange 3 A buffer mechanism 4 is provided between the mounting shaft 1 and the spline shaft 2, and the buffer mechanism 4 includes a central rotating shaft 41, an insertion shaft 42 is fixedly connected to one end of the spline shaft 2, a support plate 43 is fixedly connected to the surface of the insertion shaft 42, a convex strip 44 is fixedly connected to the surface of the support plate 43, the convex strip 44 and the groove 47 realize horizontal sliding operation, and a transmission rack 45 is fixedly connected to one side of the convex strip 44, an insertion groove 46 is provided on one side of the mounting shaft 1, a groove 47 is provided on the inner surface of the insertion groove 46, a through groove 48 is provided on the inner side of the groove 47, both ends of the central rotating shaft 41 are rotatably connected to the inner surface of the through groove 48, a limit assembly 49 is provided on the surface of the central rotating shaft 41, and the limit assembly 49 includes a fixed plate 49-1, and the fixed plate 49-1 is fixed The inner surface of the through groove 48 is fixedly installed on the surface of the central rotating shaft 41, and the surface of the winding wheel 49-2 is fixedly connected to the pulling rope 49-3. The rotation of the winding wheel 49-2 synchronously drives the extension of the pulling rope 49-3, so that when the insertion shaft 42 is pushed inward, the transmission rack 45 on the surface of the convex strip 44 drives the transmission gear 410 to rotate, thereby completing the synchronous clamping operation, avoiding the collision and instability caused by the reciprocating nature of the spring, the surface of the pulling rope 49-3 slides through the fixed plate 49-1, and the surface of the pulling rope 49-3 is supported by the supporting assembly 49-4. One end of the pulling rope 49-3 is fixedly connected to the moving plate 49-5, and the bottom of the moving plate 49-5 is fixedly connected to the limiting column 49-6.The bottom end of the limiting column 49-6 extends through the interior of the insertion slot 46, and the surface of the insertion shaft 42 is provided with a limiting slot 49-7. The surface of the limiting column 49-6 is slidably connected to the surface of the limiting slot 49-7. The surface of the pulling rope 49-3 is sleeved with a return spring 49-8. The two ends of the return spring 49-8 are fixedly connected to the opposite sides of the fixed plate 49-1 and the movable plate 49-5. The supporting assembly 49-4 includes a supporting shaft 49-41. The two ends of the supporting shaft 49-41 are rotatably connected to the inner surface of the through slot 48. The surface of the supporting shaft 49-41 is fixedly connected with a supporting wheel 49-42. The surface of the pulling rope 49-3 contacts the surface of the supporting wheel 49-42. The surface of the central rotating shaft 41 is fixedly connected with a transmission gear 410. The insertion shaft 42 is slidably connected to the surface of the insertion slot 46. The convex strip 44 is slidably connected to the surface of the groove 47. A buffer spring 411 is fixedly connected to one side of the convex strip 44, and the buffer spring 41 1 contacts the surface of the groove 47, and the transmission gear 410 meshes with the surface of the transmission rack 45. By providing a buffer mechanism 4, the movement of the insertion shaft 42 will cause the convex strip 44 on the support plate 43 to move inside the groove 47, and the transmission rack 45 will drive the transmission gear 410 to rotate, thereby driving the rotation of the central shaft 41 and the winding wheel 49-2. At this time, the winding wheel 49-2 drives the pulling rope 49-3 to extend, and the pulling rope 49-3 will be pulled by the elasticity of the return spring 49-8 until the movement stops. The limit column 49-6 moves to the end of the limit groove 49-7, and the convex strip 44 will also drive the buffer spring 411 to contact the groove 47 and squeeze and buffer, so that a two-way limit buffering operation can be realized during the movement, effectively avoiding collision damage between shafts, and avoiding the problem of repeated vibration after spring elastic buffering, so that the spline shaft assembly is more durable.

[0040] The embodiment of the present invention also discloses a method for preparing a wear-resistant spline shaft assembly with a buffering anti-collision deformation component, which specifically includes the following steps:

[0041] S1. Product processing: First, lathe the required spline shaft, and clean and remove dust from the spline shaft for subsequent use;

[0042] S2. Product use: At this time, the installation shaft 1 and the spline shaft 2 are a whole, and the spline shaft 2 will move when in use. At this time, the movement of the insertion shaft 42 will cause the convex strip 44 on the support plate 43 to move inside the groove 47, and the transmission rack 45 will drive the transmission gear 410 to rotate, thereby driving the rotation of the central shaft 41 and the winding wheel 49-2. At this time, the winding wheel 49-2 drives the pulling rope 49-3 to extend, and the pulling rope 49-3 will be pulled by the elasticity of the reset spring 49-8 until the movement stops and the limit column 49-6 moves to the end of the limit groove 49-7. At the same time, the convex strip 44 will also drive the buffer spring 411 to contact the groove 47 for extrusion and buffering.

[0043] In the embodiment of the present invention, the pulling rope 49-3 in S2 is in a tensioned state under the contact support of the supporting shaft 49-41 and the supporting wheel 49-42 when performing telescopic movement.

[0044] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant spline shaft assembly with a buffering anti-collision deformation component, comprising a spline shaft assembly consisting of a mounting shaft (1), a spline shaft (2) and a mounting flange (3), wherein the spline shaft (2) passes through the interior of the mounting flange (3) and is fixed to the inner wall of the mounting flange (3), characterized in that: A buffer mechanism (4) is provided between the installation shaft (1) and the spline shaft (2); The buffer mechanism (4) comprises a central rotating shaft (41), one end of the spline shaft (2) is fixedly connected to an insertion shaft (42), a surface of the insertion shaft (42) is fixedly connected to a support plate (43), a surface of the support plate (43) is fixedly connected to a convex strip (44), and one side of the convex strip (44) is fixedly connected to a transmission rack (45), one side of the mounting shaft (1) is provided with an insertion groove (46), an inner surface of the insertion groove (46) is provided with a groove (47), an inner side of the groove (47) is provided with a through groove (48), and both ends of the central rotating shaft (41) are provided with a plurality of grooves (48). The central rotating shaft (41) is rotatably connected to the inner surface of the through groove (48); a limit assembly (49) is provided on the surface of the central rotating shaft (41); a transmission gear (410) is fixedly connected to the surface of the central rotating shaft (41); the insertion shaft (42) is slidably connected to the surface of the insertion groove (46); the convex strip (44) is slidably connected to the surface of the concave groove (47); a buffer spring (411) is fixedly connected to one side of the convex strip (44); one end of the buffer spring (411) is in contact with the surface of the concave groove (47); and the transmission gear (410) is meshed with the surface of the transmission rack (45); The limiting assembly (49) includes a fixed plate (49-1), the fixed plate (49-1) is fixedly mounted on the inner surface of the through slot (48), the surface of the central rotating shaft (41) is fixedly connected to a winding wheel (49-2), the surface of the winding wheel (49-2) is fixedly connected to a pulling rope (49-3), the surface of the pulling rope (49-3) slides through the fixed plate (49-1), the surface of the pulling rope (49-3) is supported by a supporting assembly (49-4), and one end of the pulling rope (49-3) is fixedly connected to the movable plate (49 -5), the bottom of the movable plate (49-5) is fixedly connected to a limiting column (49-6), and the bottom end of the limiting column (49-6) extends through the inside of the insertion slot (46), the surface of the insertion shaft (42) is provided with a limiting slot (49-7), the surface of the limiting column (49-6) is slidably connected to the surface of the limiting slot (49-7), the surface of the pulling rope (49-3) is sleeved with a return spring (49-8), and the two ends of the return spring (49-8) are fixedly connected to the opposite sides of the fixed plate (49-1) and the movable plate (49-5).

2. The wear-resistant spline shaft assembly with a buffering anti-collision deformation component according to claim 1, characterized in that: The support assembly (49-4) comprises a support shaft (49-41), both ends of the support shaft (49-41) are rotatably connected to the inner surface of the through slot (48), a support wheel (49-42) is fixedly connected to the surface of the support shaft (49-41), and the surface of the pulling rope (49-3) is in contact with the surface of the support wheel (49-42).

3. The wear-resistant spline shaft assembly with a buffering anti-collision deformation component according to claim 1, characterized in that: The surface of the spline shaft assembly is provided with a base layer (5), a corrosion-resistant layer (6) and a wear-resistant layer (7); the top of the base layer (5) and the bottom of the corrosion-resistant layer (6) are fixedly bonded by an adhesive, and the top of the corrosion-resistant layer (6) and the bottom of the wear-resistant layer (7) are fixedly bonded by an adhesive.

4. The wear-resistant spline shaft assembly with a buffering anti-collision deformation component according to claim 3 is characterized in that: The corrosion-resistant layer (6) comprises a nitrile-modified phenolic resin layer (61), an epoxy resin layer (62), an alkyd resin layer (63) and a polyetheresteramide layer (64); the top of the nitrile-modified phenolic resin layer (61) is fixedly connected to the bottom of the epoxy resin layer (62); the top of the epoxy resin layer (62) is fixedly connected to the bottom of the alkyd resin layer (63); and the top of the alkyd resin layer (63) is fixedly connected to the bottom of the polyetheresteramide layer (64).

5. The wear-resistant spline shaft assembly with a buffering anti-collision deformation component according to claim 3, characterized in that: The wear-resistant layer (7) comprises a polypropylene resin layer (71), a polyurethane resin layer (72), a polyetherimide layer (73) and a polyetheretherketone layer (74); the top of the polypropylene resin layer (71) is fixedly connected to the bottom of the polyurethane resin layer (72); the top of the polyurethane resin layer (72) is fixedly connected to the bottom of the polyetherimide layer (73); and the top of the polyetherimide layer (73) is fixedly connected to the bottom of the polyetheretherketone layer (74).

6. A method for preparing a wear-resistant spline shaft assembly with a buffering anti-collision deformation component according to any one of claims 1 to 5, characterized in that: The specific steps include: S1. Product processing: Firstly, lathe the required spline shaft, and clean and remove dust from the spline shaft; S2. Product use: At this time, the installation shaft (1) and the spline shaft (2) are an integral structure, and the spline shaft (2) will move when in use. At this time, the movement of the insertion shaft (42) will cause the convex strip (44) on the support plate (43) to move inside the groove (47), and the transmission rack (45) will drive the transmission gear (410) to rotate, thereby driving the rotation of the central shaft (41) and the winding wheel (49-2). At this time, the winding wheel (49-2) drives the pulling rope (49-3) to extend, and the pulling rope (49-3) will be pulled by the elasticity of the return spring (49-8) until the movement stops and the limit column (49-6) moves to the end of the limit groove (49-7). At the same time, the convex strip (44) will also drive the buffer spring (411) to contact the groove (47) and perform extrusion buffering.

7. The method for preparing a wear-resistant spline shaft assembly with a buffering anti-collision deformation component according to claim 6, characterized in that: The pulling rope (49-3) in S2 is in a tensioned state when performing telescopic movement under the contact support of the supporting rotating shaft (49-41) and the supporting wheel (49-42).

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