Blind-insertion transmission gear

Abstract

A transmission gear allowing blind insertion comprises a transmission gear male end (100) and a transmission gear female end (200), the transmission gear female end (200) is provided with a containing cavity (201) matched with the transmission gear male end (100), the transmission gear male end (100) comprises a gear body (101), a mounting hole (104) is formed in the middle of the gear body (101), and the mounting hole (104) is communicated with the containing cavity (201). First teeth (102) are distributed on the circumferential outer circle of the gear body (101), and the number of the first teeth (102) is 3-10. The transmission gear male end provided with the 3-10 first teeth is matched with the transmission gear female end provided with the containing cavity, so that the transmission gear male end and the transmission gear female end can be rapidly disassembled and assembled, the maintenance time and cost are reduced, connection is allowed to be conducted under the condition that no visual confirmation exists, namely under the invisible condition, and the transmission gear is convenient to use. The installation speed and efficiency are greatly improved, especially in the environment where the operation space is limited or the meshing angle of the gear is difficult to adjust manually.

Description

Technical Field

[0001] This utility model relates to the field of transmission gear technology, and in particular to a blind-insertable transmission gear. Background Technology

[0002] Transmission gears are components that transmit motion and power. They achieve the conversion of speed, torque, and direction by meshing two or more gears and are widely used in various equipment.

[0003] Typically, the output of a power unit is rigidly connected to the load. For example, Chinese utility model patent CN216783823U discloses an underwater thruster, which includes a sealed chamber, a motor, and a propeller. The motor is housed within the sealed chamber, and its output shaft is connected to the propeller, which is located within a fairing. Because the motor's output shaft is rigidly connected to the propeller, disassembly and reinstallation become complex when cleaning debris entangled in the propeller or repairing malfunctions in the underwater thruster. This undoubtedly increases maintenance time and costs.

[0004] Therefore, existing technologies need to be improved and enhanced. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a blind-insertable transmission gear that is easy to disassemble and assemble and has low cost.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A blind-fit transmission gear includes a male transmission gear end and a female transmission gear end. The female transmission gear end has a receiving cavity adapted to the male transmission gear end. The male transmission gear end includes a gear body. A fixing mounting hole is provided at the middle position of the gear body. The gear body has 3-10 first teeth distributed on its circumferential outer circle.

[0008] As a further embodiment of this invention, the number of the first teeth is six.

[0009] As a further embodiment of this invention, the end of the first tooth facing the female end of the transmission gear has an arc-shaped guiding meshing design.

[0010] As a further embodiment of this invention, the circumferential inner wall of the accommodating cavity is provided with second teeth.

[0011] As a further embodiment of this invention, the end of the second tooth facing the male end of the transmission gear is designed with an arc-shaped guide meshing.

[0012] As a further embodiment of this utility model, a first tooth groove adapted to the second tooth is formed between two adjacent first teeth, and a second tooth groove adapted to the first tooth is formed between two adjacent second teeth.

[0013] As a further embodiment of this utility model, the end of the male end of the transmission gear away from the female end of the transmission gear is provided with two pin mounting grooves in a radial direction.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Due to the above structural design, which adapts the male end of the transmission gear with 3-10 first teeth to the female end of the transmission gear with a receiving cavity, the male and female ends of the transmission gear can be quickly disassembled and assembled, reducing maintenance time and costs. It also allows connection under non-visual conditions without visual confirmation, which greatly improves installation speed and efficiency, especially in environments where operating space is limited or where it is difficult to manually adjust the gear meshing angle. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0017] Appendix Figure 2 This is an exploded structural diagram of an embodiment of the present utility model;

[0018] Appendix Figure 3 This is a schematic diagram of the structure of the male end of the transmission gear in an embodiment of this utility model;

[0019] Appendix Figure 4 This is another structural schematic diagram of the male end of the transmission gear in an embodiment of this utility model;

[0020] Appendix Figure 5 This is a schematic diagram of the structure of the female end of the transmission gear in an embodiment of this utility model;

[0021] Appendix Figure 6 This is a schematic diagram of an embodiment of the present invention applied to an underwater thruster;

[0022] Appendix Figure 7 This is another schematic diagram of an embodiment of the present invention applied to an underwater propulsion device.

[0023] The labels in the diagram are as follows:

[0024] 100 - Male end of transmission gear, 200 - Female end of transmission gear, 300 - Power unit, 400 - Blade assembly;

[0025] 101-Gear body, 102-First tooth, 103-First tooth groove, 104-Fixed mounting hole, 105-Pin mounting groove, 106-Arc surface;

[0026] 201 - Receptacle, 202 - Second tooth, 203 - Second tooth groove. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation. Example

[0033] like Figure 1-5 As shown, this application discloses a blind-fit transmission gear, including a male transmission gear end 100 and a female transmission gear end 200. The female transmission gear end 200 has a receiving cavity 201 adapted to the male transmission gear end 100. The male transmission gear end 100 includes a gear body 101. A fixing mounting hole 104 is provided at the middle position of the gear body 101. First teeth 102 are distributed on the outer circumference of the gear body 101. According to actual application requirements, the number of first teeth 102 can be set to 3-10 to meet different product needs. In this embodiment, the number of first teeth 102 is six. The end of the first tooth 102 facing the female end 200 of the transmission gear has an arc-shaped guide meshing design, that is, the end of the first tooth 102 facing the female end 200 of the transmission gear has an arc surface 106, and the end of the second tooth 202 facing the male end 100 of the transmission gear has an arc-shaped guide meshing design. Through the above structural design, since the ends of the first tooth 102 and the second tooth 202 are both designed with arc-shaped guide meshing, the blind insertion operation between the male end 100 of the transmission gear and the female end 200 of the transmission gear becomes easier and simpler to operate.

[0034] With the above structural design, during installation, simply align the male end 100 of the transmission gear with the female end 200 of the transmission gear, and the male end of the transmission gear can be inserted into the female end of the transmission gear. Because both the male end 100 and the corresponding female end 200 of the transmission gear have arc-shaped guiding meshing designs, the male end 100 of the transmission gear has relatively fixed rotational resistance, while the female end 200 of the transmission gear is connected to the blade and has no rotational resistance, allowing it to rotate freely. When the arc-shaped end of the male end 100 of the transmission gear contacts the arc-shaped end of the female end 200 of the transmission gear, the tangency between the arc surfaces causes the female end 200 of the transmission gear to be subjected to force and rotate, thus allowing the male end 100 of the transmission gear to be smoothly inserted into the receiving cavity 201 of the female end of the transmission gear. This enables quick assembly and disassembly of the male and female ends of the transmission gear, reducing maintenance time and costs. Even without visual confirmation, connection can still be performed under conditions where visibility is limited, which greatly improves installation speed and efficiency, especially in environments where operating space is limited or where it is difficult to manually adjust the gear meshing angle.

[0035] Specifically, the circumferential inner wall of the accommodating cavity 201 is provided with second teeth 202, and a first tooth groove 103 adapted to the second teeth 202 is formed between two adjacent first teeth 102, and a second tooth groove 203 adapted to the first teeth 102 is formed between two adjacent second teeth 202. Through the cooperation of the first teeth 102 and the second tooth groove 203 and the second teeth 202 and the first tooth groove 103, the male end 100 of the transmission gear and the female end 200 of the transmission gear can be well assembled together.

[0036] Specifically, the end of the male end 100 of the transmission gear away from the female end 200 of the transmission gear has two pin mounting grooves 105 arranged radially opposite each other. By providing the fixing mounting hole 104 and the pin mounting groove 105, the male end 100 of the transmission gear can be installed on the power unit.

[0037] like Figure 6 and Figure 7As shown, when this application is applied to an underwater propulsion device, the male end 100 of the transmission gear is mounted on the output shaft of the power unit 300 (i.e., the motor) through the fixed mounting hole 104 and the pin mounting groove 105. The female end 200 of the transmission gear is mounted on the blade assembly. Normally, the blades in the blade assembly are mounted inside the housing of the blade assembly near the tail end of the housing, which also makes the female end 100 of the transmission gear located near the tail end of the housing. At the same time, the output shaft of the motor has a limited length. If the rigid connection technology between the propeller and the blade is used, the disassembly and assembly are quite troublesome and complicated. However, when using this application for installation, it is only necessary to insert the male end 100 of the transmission gear mounted on the power unit 300 into the housing of the blade assembly. The male end 100 of the transmission gear can be easily inserted into the female end 200 of the transmission gear on the blade assembly 400 by blind insertion. Finally, the power unit 300 and the blade assembly 400 are assembled by rotating the housing and the snap-fit ​​structure between the housing and the power unit.

[0038] In summary, this utility model, through the above-described structural design, overcomes the shortcomings of the prior art and features a reasonable structure, easy assembly and disassembly, and low cost.

[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A blind-insertable transmission gear, characterized in that: It includes a male transmission gear end (100) and a female transmission gear end (200). The female transmission gear end (200) has a receiving cavity (201) adapted to the male transmission gear end (100). The male transmission gear end (100) includes a gear body (101). A fixing mounting hole (104) is provided at the middle position of the gear body (101). The gear body (101) has first teeth (102) distributed on its outer circumferential surface. The number of first teeth (102) is 3-10.

2. The blind-fit transmission gear as described in claim 1, characterized in that: The number of the first tooth (102) is six.

3. The blind-fit transmission gear as described in claim 2, characterized in that: The end of the first tooth (102) facing the female end (200) of the transmission gear has an arc-shaped guide meshing design.

4. The blind-fit transmission gear as described in claim 1, characterized in that: The circumferential inner wall of the accommodating cavity (201) is provided with second teeth (202).

5. The blind-fit transmission gear as described in claim 4, characterized in that: The end of the second tooth (202) facing the male end (100) of the transmission gear has an arc-shaped guide meshing design.

6. The blind-fitting transmission gear as described in claim 5, characterized in that: A first groove (103) is formed between two adjacent first teeth (102) that is adapted to the second teeth (202), and a second groove (203) is formed between two adjacent second teeth (202) that is adapted to the first teeth (102).

7. The blind-fit transmission gear as described in claim 1, characterized in that: The male end (100) of the transmission gear, away from the female end (200) of the transmission gear, is provided with two pin mounting slots (105) in a radial direction.

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