Positioning transmission shaft

Abstract

The positioning transmission shaft comprises a shaft body, and further comprises a connecting section, a main body section, a transmission section and a positioning unit which are arranged on the shaft body, the positioning unit comprises a first positioning hole, a second positioning hole and a connecting hole, the first positioning hole is formed in one side of the connecting section, and the second positioning hole is formed in the other side of the main body section. The transmission section is provided with a first positioning hole and a second positioning hole, mounting spaces are formed in the first positioning hole and the second positioning hole, the first positioning hole and the second positioning hole are connected with an assembly part, the connecting holes are symmetrically formed in the transmission section, the transmission part is positioned by the connecting holes, the transmission shaft is connected with the transmission part, and the transmission part is driven by the transmission shaft to move. And conversion and transmission of force are realized. Compared with the prior art, the transmission shaft has the advantages that the first positioning hole and the second positioning hole are arranged to achieve double positioning of an assembly part, positioning accuracy is improved, when one positioning hole is abraded, the other positioning hole can also position the assembly part, and the transmission shaft is more reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission shafts, in particular to a positioning transmission shaft. Background Art

[0002] The patent document discloses a motor transmission shaft for mechanical manufacturing with an inner core reinforcement, comprising a core shaft, one end of the core shaft is fixedly connected to a spline shaft, the surface fixing sleeve of the core shaft is provided with a cylindrical shell, the surface of the core shaft is provided with a keyway, the core shaft comprises a reinforcement layer, the surface fixing sleeve of the reinforcement layer is provided with a corrosion-resistant layer, the surface fixing sleeve of the corrosion-resistant layer is provided with a wear-resistant layer, the reinforcement layer comprises a medium carbon steel layer, the surface fixing sleeve of the medium carbon steel layer is provided with a super-strong steel layer, the corrosion-resistant layer comprises a duplex stainless steel layer, and the surface fixing sleeve of the duplex stainless steel layer is provided with an galvanized steel layer. The utility model has the function of enhancing the strength, corrosion resistance and wear resistance of the transmission shaft through the coordination of the medium carbon steel layer, the super-strong steel layer, the duplex stainless steel layer, the galvanized steel layer, the high manganese steel layer and the titanium alloy layer, avoiding damage caused by collision and contact with the external environment, and improving the practicality of the transmission shaft.

[0003] However, the transmission shaft is positioned only by the keyway, and the keyway is arranged on one side of the transmission shaft, which reduces the positioning accuracy of the transmission shaft and increases the assembly error. Therefore, it is necessary to improve such a structure to overcome the above defects. Utility Model Content

[0004] The purpose of the utility model is to provide a positioning transmission shaft to solve the problems raised in the above background technology.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A positioning transmission shaft comprises a shaft body, and also comprises a connecting section, a main section, a transmission section and a positioning unit arranged on the shaft body, the positioning unit comprises a first positioning hole, a second positioning hole and a connecting hole, the first positioning hole is arranged on one side of the connecting section, the second positioning hole is arranged on the other side of the main section, the first positioning hole and the second positioning hole have installation space, the first positioning hole and the second positioning hole are connected to an assembly component, a pair of connecting holes are provided, the connecting holes are symmetrically arranged in the transmission section, the connecting holes have installation space, the transmission component is positioned by the connecting holes, and the transmission shaft is connected to the transmission component, the transmission shaft drives the transmission component to move, and realizes force conversion and transmission.

[0007] The utility model is further configured that the shaft body is a component made of metal material.

[0008] The utility model is further configured that first annular grooves are provided at both ends of the connecting section, and the first annular grooves have installation spaces therein.

[0009] The utility model is further configured that a second annular groove is provided at one end of the main body section, and the second annular groove is connected to the connecting section, so that the second annular groove ensures that the assembly component can be closely matched with the cross section of the connecting section.

[0010] The utility model is further configured that the other end of the main body section is provided with a third annular groove, and the third annular groove is connected to the transmission section.

[0011] The utility model is further configured such that a fourth annular groove is provided at one end of the connecting section away from the main body section.

[0012] The utility model is further configured such that one end of the main body section and one end of the connecting section are provided with chamfers.

[0013] The utility model is further configured such that the first positioning hole and the second positioning hole are oriented in opposite directions, and the second positioning hole and the connecting hole are oriented in the same direction, so that the first positioning hole and the second positioning hole perform dual positioning on the assembly component.

[0014] The advantages of the utility model are:

[0015] 1. The utility model realizes double positioning of the assembly component by setting the first positioning hole and the second positioning hole, thereby increasing the positioning accuracy. When one of the positioning holes is worn, the other positioning hole can also position the assembly component, making the transmission shaft more reliable;

[0016] 2. The utility model double-positions the transmission component by providing a pair of connection holes, thereby increasing the positioning accuracy and making the connection with the transmission component tighter, while making the power transmission of the transmission shaft more reliable, so that the transmission shaft can transmit greater force. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a top view of the positioning transmission shaft proposed by the utility model.

[0018] Figure 2 It is a bottom view of the positioning transmission shaft proposed by the utility model.

[0019] Figure 3 It is a stereoscopic diagram of the positioning transmission shaft proposed by the utility model.

[0020] Numeral symbols: connecting section 110, main section 210, transmission section 310, positioning unit 400, first positioning hole 410, second positioning hole 420, connecting hole 430, first annular groove 510, second annular groove 520, third annular groove 530, fourth annular groove 540, chamfer 610 DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0022] like Figure 1-3 As shown, a positioning transmission shaft proposed by the utility model includes a shaft body, and also includes a connecting section 110, a main section 210, a transmission section 310 and a positioning unit 400 arranged on the shaft body, the positioning unit includes a first positioning hole 410, a second positioning hole 420 and a connecting hole 430, the first positioning hole is arranged on one side of the connecting section, and the second positioning hole is arranged on the other side of the main section, the first positioning hole and the second positioning hole have installation space, the first positioning hole and the second positioning hole are connected to the assembly component, a pair of connecting holes are provided, the connecting holes are symmetrically arranged in the transmission section, the connecting holes have installation space, the transmission component is positioned by the connecting holes, and the transmission shaft is connected to the transmission component, the transmission shaft drives the transmission component to move, and realizes force conversion and transmission.

[0023] In this embodiment, the shaft body is a component made of metal material.

[0024] In this embodiment, first annular grooves 510 are provided at both ends of the connecting section, and the first annular grooves have installation spaces therein.

[0025] In this embodiment, a second annular groove 520 is provided at one end of the main body section, and the second annular groove is connected to the connecting section. The second annular groove ensures that the assembly component can be closely matched with the cross section of the connecting section.

[0026] In this embodiment, a third annular groove 530 is provided at the other end of the main body section, and the third annular groove is connected to the transmission section.

[0027] In this embodiment, a fourth annular groove 540 is provided at one end of the connecting section away from the main body section.

[0028] In this embodiment, one end of the main body section and one end of the connecting section are provided with chamfers 610 .

[0029] In this embodiment, the first positioning hole and the second positioning hole are in opposite directions, and the second positioning hole and the connecting hole are in the same direction, so that the first positioning hole and the second positioning hole perform doubly positioning on the assembly component.

[0030] In the description of the present utility model, it should be noted that when terms such as "upper", "lower", "inner", "outer", "left", "right" and the like indicating orientation or positional relationship appear, it should be understood that the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the equipment or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, when terms such as "first" and "second" appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, terms such as "installation", "setting", and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A positioning transmission shaft, comprising a shaft body, characterized in that: It also includes a connecting section, a main section, a transmission section and a positioning unit arranged on the shaft body, the positioning unit includes a first positioning hole, a second positioning hole and a connecting hole, the first positioning hole is arranged on one side of the connecting section, the second positioning hole is arranged on the other side of the main section, the first positioning hole and the second positioning hole have installation space, the first positioning hole and the second positioning hole are connected to the assembly component, a pair of connecting holes are provided, the connecting holes are symmetrically arranged in the transmission section, the connecting holes have installation space, the transmission component is positioned by the connecting hole, and the transmission shaft is connected to the transmission component, the transmission shaft drives the transmission component to move, and realizes force conversion and transmission.

2. A positioning transmission shaft according to claim 1, characterized in that: The shaft body is a component made of metal material.

3. A positioning transmission shaft according to claim 1, characterized in that: The two ends of the connecting section are provided with first annular grooves, and the first annular grooves have installation spaces therein.

4. A positioning transmission shaft according to claim 1, characterized in that: A second annular groove is provided at one end of the main body section, and the second annular groove is connected to the connecting section. The second annular groove ensures that the assembly component can be closely matched with the cross section of the connecting section.

5. A positioning transmission shaft according to claim 1, characterized in that: The other end of the main body section is provided with a third annular groove, and the third annular groove is connected to the transmission section.

6. A positioning transmission shaft according to claim 1, characterized in that: A fourth annular groove is arranged at one end of the connecting section away from the main body section.

7. A positioning transmission shaft according to claim 1, characterized in that: One end of the main body section and one end of the connecting section are provided with chamfers.

8. A positioning transmission shaft according to claim 1, characterized in that: The first positioning hole and the second positioning hole are in opposite directions, and the second positioning hole and the connecting hole are in the same direction. The first positioning hole and the second positioning hole are used to perform double positioning on the assembly component.

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