Spline shaft connecting piece

Abstract

The utility model relates to the technical field of spline shaft production and processing, and discloses a spline shaft connecting piece which comprises a key shaft sleeve, the inner wall of the key shaft sleeve is connected with a key shaft body in a sliding mode, the inner wall of the key shaft sleeve is connected with a wear-resisting layer in a sliding mode, the inner wall of the wear-resisting layer is fixedly connected with a copper layer, and the inner wall of the copper layer is fixedly connected with a silica gel layer. The inner wall of the silica gel layer is fixedly connected with an alloy steel layer. According to the utility model, good flexibility is provided for the silica gel layer through polysiloxane and silicon dioxide, the overall flexibility of the key shaft body is further improved, the strength of the alloy steel layer is greatly improved through carburizing steel and stainless steel, the overall strength of the key shaft body is further improved, and breakage is prevented; through mutual cooperation of the wear-resistant layer, the copper layer, the silica gel layer and the alloy steel layer, the quality of the spline shaft body is improved, and the situation that the quality of a spline shaft connecting piece is reduced after long-time use, and normal operation of a machine is affected is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to spline shaft production and processing technical field especially relates to a spline shaft connecting piece. BACKGROUND

[0002] The spline shaft is a kind of shaft parts in mechanical transmission, its outer surface has multiple key teeth along the axial direction, these key teeth are matched with the keyway on corresponding spline sleeve or spline hub, for transmitting torque, axial force or the combination of both.

[0003] The traditional spline shaft connecting piece design is relatively simple, material is mostly selected ordinary carbon steel, and the cost is low and easy to mass production, but due to the material selection is relatively ordinary, leading to quality decline of spline shaft connecting piece under long time use, and then influence the normal operation of machine. UTILITY MODEL CONTENT

[0004] In order to make up for the above insufficient, the utility model provides a kind of spline shaft connecting piece, to improve the material of traditional spline shaft connecting piece is relatively ordinary, leading to quality decline of spline shaft connecting piece under long time use, and then influence the normal operation of machine problem.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A kind of spline shaft connecting piece, including key shaft sleeve, the inner wall of the key shaft sleeve is slidably connected with key shaft body, the inner wall of the key shaft sleeve is slidably connected with wear-resistant layer, the inner wall of the wear-resistant layer is fixedly connected with copper layer, the inner wall of the copper layer is fixedly connected with silica gel layer, the inner wall of the silica gel layer is fixedly connected with alloy steel layer.

[0007] Preferably, the material of the wear-resistant layer is made of high manganese steel.

[0008] Preferably, the material of the copper layer is made of brass and oxygen-free copper.

[0009] Preferably, the material of the silica gel layer is made of polysiloxane and silicon dioxide.

[0010] Preferably, the material of the alloy steel layer is made of carburizing steel and stainless steel.

[0011] Preferably, the inner wall of the key shaft sleeve is provided with sliding slot, and the key shaft sleeve is slidably connected to the outer wall of the key shaft body through the sliding slot.

[0012] Preferably, the inner wall of the key shaft body is provided with hole.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the present invention, high manganese steel is used to improve the overall wear resistance of the wear-resistant layer, thereby improving the overall wear resistance of the key shaft body. Brass and oxygen-free copper can improve the overall thermal conductivity of the copper layer, thereby improving the overall thermal conductivity of the key shaft body and preventing local deformation caused by uneven temperature. Polysiloxane and silicon dioxide are used to provide good flexibility for the silicone layer, thereby improving the overall flexibility of the key shaft body. Carburized steel and stainless steel greatly improve the strength of the alloy steel layer, thereby improving the overall strength of the key shaft body and preventing fracture. Through the mutual cooperation between the wear-resistant layer, copper layer, silicone layer and alloy steel layer, the quality of the key shaft body is improved, avoiding the quality decline of the spline shaft connector after long-term use, which affects the normal operation of the machine.

[0015] 2. In the present invention, when heat is generated during operation between the key shaft sleeve and the key shaft body, the heat dissipation efficiency can be improved through the holes opened on the inner wall of the key shaft body, thereby preventing the key shaft body from being deformed due to long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a spline shaft connector proposed by the present invention;

[0017] Figure 2 This is a schematic cross-sectional structure diagram of a wear-resistant layer of a spline shaft connector proposed in the present invention;

[0018] Figure 3 This is a schematic diagram of the local structure of a slide groove of a spline shaft connector proposed by the utility model.

[0019] Legend:

[0020] 1. Key shaft sleeve; 2. Key shaft body; 3. Hole; 4. Wear-resistant layer; 5. Copper layer; 6. Silicone layer; 7. Alloy steel layer; 8. Slide groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings of the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0022] Reference Figures 1-3The utility model provides a kind of embodiment: a spline shaft connecting piece, the inner wall slidingly connected with key shaft body 2 of key shaft sleeve 1 is slidably connected with wear layer 4 in the inner wall of key shaft sleeve 1, the inner wall of wear layer 4 is fixedly connected with copper layer 5, the inner wall of copper layer 5 is fixedly connected with silica gel layer 6, the inner wall of silica gel layer 6 is fixedly connected with alloy steel layer 7;

[0023] Specifically, wear layer 4 has good wear resistance, thereby improving the overall wear resistance of key shaft body 2, copper layer 5 has excellent heat absorption, thereby improving the overall heat absorption of key shaft body 2, silica gel layer 6 has good flexibility, thereby improving the overall flexibility of key shaft body 2, preventing key shaft body 2 from breaking, alloy steel layer 7 has high strength, thereby improving the overall strength of key shaft body 2, through the mutual cooperation between wear layer 4, copper layer 5, silica gel layer 6 and alloy steel layer 7, thereby achieving the effect of improving the overall strength and wear resistance of key shaft body 2.

[0024] Referring to Figure 1 and Figure 2 Wear layer 4 is made of high manganese steel; copper layer 5 is made of brass and oxygen-free copper; silica gel layer 6 is made of polysiloxane and silicon dioxide; alloy steel layer 7 is made of carburizing steel and stainless steel;

[0025] Specifically, high manganese steel has good wear resistance, thereby improving the overall wear resistance of wear layer 4, brass and oxygen-free copper are both good heat absorption materials, thereby improving the overall heat absorption effect of copper layer 5, polysiloxane and silicon dioxide both have good flexibility, thereby improving the overall toughness of silica gel layer 6, carburizing steel and stainless steel both have high strength, thereby improving the overall strength of alloy steel layer 7.

[0026] Referring to Figure 1 and Figure 3 The inner wall of key shaft sleeve 1 is provided with a sliding groove 8, and the key shaft sleeve 1 is slidably connected to the outer wall of the key shaft body 2 through the sliding groove 8; the inner wall of the key shaft body 2 is provided with a hole 3;

[0027] Specifically, sliding groove 8 is used to limit the running track of key shaft sleeve 1, and hole 3 is used to improve the heat dissipation performance of spline shaft connecting piece during operation, thereby achieving the effect of preventing deformation of spline shaft connecting piece due to long-term use.

[0028] Working principle: the spline shaft connecting piece, through the high strength wear resistance characteristics of high manganese steel, and then can improve the wear resistance of the key shaft body 2 as a whole, brass and oxygen-free copper have excellent heat conductivity, and then can improve the heat conduction effect of the key shaft body 2 as a whole, prevent the effect of local deformation caused by local temperature too high, the silica gel layer 6 is made of polysiloxane and silicon dioxide, and polysiloxane and silicon dioxide have good flexibility, and then can improve the flexibility of the key shaft body 2 as a whole, prevent the effect of key shaft body 2 fracture, alloy steel layer 7 is made of carburizing steel and stainless steel, and carburizing steel and stainless steel have high strength, and then can improve the overall strength of the key shaft body 2, through the mutual cooperation between wear-resistant layer 4, copper layer 5, silica gel layer 6 and alloy steel layer 7, realize the effect of improving the wear resistance, thermal conductivity and flexibility of the key shaft body 2 as a whole;When the key shaft sleeve 1 slides on the outer wall of the key shaft body 2, the heat generated can be dissipated through the hole 3 opened in the inner wall of the key shaft body 2, and then realize the effect of improving the heat dissipation between the key shaft sleeve 1 and the key shaft body 2, help to keep the performance stability of the spline sleeve, finally the spline shaft connecting piece not only can improve the overall quality of the key shaft body 2 through the mutual cooperation between wear-resistant layer 4, copper layer 5, silica gel layer 6 and alloy steel layer 7, but also can improve the heat dissipation effect between the key shaft sleeve 1 and the key shaft body 2 through the hole 3, ensure the stability of the work between the key shaft sleeve 1 and the key shaft body 2.

[0029] Finally, it should be pointed out that: the above described only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing detailed description of the present application has been made, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the scope of protection of the present application.

Claims

1. A spline shaft connection comprising a key shaft sleeve (1), characterized in that: The inner wall of the key shaft sleeve (1) is slidably connected with a key shaft body (2), the inner wall of the key shaft sleeve (1) is slidably connected with a wear-resistant layer (4), the inner wall of the wear-resistant layer (4) is fixedly connected with a copper layer (5), the inner wall of the copper layer (5) is fixedly connected with a silica gel layer (6), and the inner wall of the silica gel layer (6) is fixedly connected with an alloy steel layer (7).

2. A spline shaft connection according to claim 1, characterized in that: The material of the wear-resistant layer (4) is made of high manganese steel.

3. A spline shaft coupling according to claim 1, wherein: The material of the copper layer (5) is made of brass and oxygen-free copper.

4. A spline shaft connection according to claim 1, characterized in that: The material of the silica gel layer (6) is made of polysiloxane and silicon dioxide.

5. A spline shaft connection according to claim 1, characterized in that: The material of the alloy steel layer (7) is made of carburizing steel and stainless steel.

6. A spline shaft connection according to claim 1, characterized in that: The inner wall of the key shaft sleeve (1) is provided with a sliding groove (8), and the key shaft sleeve (1) is slidably connected to the outer wall of the key shaft body (2) through the sliding groove (8).

7. A spline shaft connection according to claim 1, characterized in that: The inner wall of the key shaft body (2) is provided with a hole (3).

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