Gear structure with self-adaptive floating function

Abstract

The utility model relates to mechanical engineering technical field discloses a gear structure with self -adaptation floating function, including input cover, the outer wall of input cover is installed with floating mechanism, the outer wall detachable connection of input cover has the fixing frame, the inner wall of fixing frame is installed with sealing mechanism, the inner wall of fixing frame all screw thread connection has a plurality of bolts, the inner wall of fixing frame all is set up a plurality of thread holes, the floating mechanism includes gear shaft subassembly, the inner wall sliding connection of gear shaft subassembly has a small cover, the outer wall sliding connection of small cover has a medium cover, in the utility model, the gap between input gear and medium cover is reserved, provides the self -adaptation space for motor shaft to extend into, offsets the processing deviation, the motor shaft contact medium cover right end surface will move left after, this structure increases the adaptability of motor shaft and input component, simple structure, obvious noise reduction.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and in particular to a gear structure with adaptive floating function. Background Technology

[0002] The planetary gear reducer's input interface enables a reliable connection to the power source, stably guiding the input torque and speed into the reducer's core transmission mechanism. Through standardized or customized design, it matches the interface specifications of different power sources, improving the equipment's versatility. It can buffer the instantaneous impact of the power source, reduce vibration, and decrease the wear of internal gears and other components. The positioning structure ensures the concentricity of the input shaft and the power source's output shaft, avoiding efficiency losses and malfunctions caused by eccentricity.

[0003] The input interface of the planetary gear reducer connects the output shaft of the power source to the input shaft of the reducer via a key, spline, or coupling, introducing torque and speed. The input shaft is rigidly linked to the core component of the reducer, directly driving the planetary gear set. The interface has built-in bearings to ensure the coaxiality of the input shaft and the output shaft of the power source, reducing eccentricity losses during operation. Some interfaces contain elastic elements to buffer instantaneous impacts, achieving smooth power transmission to the reduction mechanism.

[0004] In existing technologies, the connection between some motor shafts and the input shaft of planetary gear reducers suffers from problems such as high noise and poor compatibility. During processing and assembly, there are production and assembly errors, resulting in motor shaft wobbling and poor coaxiality between the motor shaft and the connecting shaft. This leads to excessive noise and abnormal noise during the operation of the reducer. To address these issues, a gear structure with an adaptive floating function is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a gear structure with an adaptive floating function, which aims to improve the problems of motor shaft wobbling and poor coaxiality between the motor shaft and the connecting shaft in the prior art, resulting in excessive noise and abnormal noise in forward and reverse rotation during the operation of the reducer.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An adaptive floating gear structure includes an input sleeve, a floating mechanism mounted on the outer wall of the input sleeve, a fixed frame detachably connected to the outer wall of the input sleeve, a sealing mechanism mounted on the inner wall of the fixed frame, multiple bolts threadedly connected to the inner wall of the fixed frame, and multiple threaded holes opened on the inner wall of the fixed frame.

[0008] The floating mechanism includes a gear shaft assembly, with a small sleeve slidably connected to the inner wall of the gear shaft assembly, and a middle sleeve slidably connected to the outer wall of the small sleeve;

[0009] As a further description of the above technical solution:

[0010] The gear shaft assembly includes a gear sleeve, an input gear is slidably connected to the inner wall of the gear sleeve, and the outer wall of the gear sleeve is meshed with the inner wall of the input gear.

[0011] As a further description of the above technical solution:

[0012] The outer wall of the input sleeve is slidably connected to the inner wall of the gear sleeve, the outer wall of the small sleeve is slidably connected to the inner wall of the input gear, and the outer wall of the medium sleeve is slidably connected to the inner wall of the input sleeve.

[0013] As a further description of the above technical solution:

[0014] The inner wall of the gear sleeve and the outer wall of the input sleeve are interference fit, and the outer wall of the small sleeve and the inner wall of the medium sleeve are interference fit.

[0015] As a further description of the above technical solution:

[0016] The sealing mechanism includes a lip seal ring, a clamping spring is fitted on the inner wall of the lip seal ring, an O-ring is fixedly connected to the inner wall of the gear sleeve, and an installation groove is provided on the inner wall of the gear sleeve.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the lip seal is fixedly connected to the inner wall of the mounting bracket, and the outer wall of the O-ring seal is fixedly connected to the inner wall of the mounting groove.

[0019] As a further description of the above technical solution:

[0020] The inner wall of the input sleeve is provided with multiple threaded holes, and the outer wall of the bolt is threaded to the inner wall of the input sleeve.

[0021] As a further description of the above technical solution:

[0022] The outer wall of the bolt is threaded into the inner wall of the threaded hole, and the inner wall of the O-ring seal contacts the outer wall of the input sleeve.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the gap between the input gear and the middle sleeve provides adaptive space for the motor shaft to extend, which can offset the coaxiality deviation caused by machining and assembly errors. When the motor shaft is long, it will move to the left after contacting the right end face of the middle sleeve, reducing the gap and ensuring close contact between the motor shaft and the input shaft, thus reducing noise during operation. At the same time, only a small section of the input sleeve is for fitting tolerance, which facilitates motor connection and avoids misalignment problems caused by excessive tightness. This structure increases the adaptability of the motor shaft and the input component, while also being simple in structure and significantly reducing noise.

[0025] 2. In this utility model, the sealing mechanism works in concert with multiple sealing components. The lip seal ring is tightened to fit tightly against the surface of the motor shaft, achieving a sealing effect. The O-ring seal ring elastically deforms to fill the gap, thus achieving a seal together. This reduces wear on components caused by impurities entering and lubricant loss, and improves the operational reliability of the gear structure. This structure seals the internal environment of the floating structure to ensure a clean environment. Attached Figure Description

[0026] Figure 1 A three-dimensional schematic diagram of a gear structure with adaptive floating function proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the gear sleeve of an adaptive floating gear structure proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the fixing frame of the gear structure with adaptive floating function proposed in this utility model;

[0029] Figure 4 This is a schematic diagram of the middle sleeve of a gear structure with adaptive floating function proposed in this utility model;

[0030] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0031] Legend:

[0032] 1. Input sleeve; 2. Floating mechanism; 21. Gear shaft assembly; 211. Gear sleeve; 212. Input gear; 22. Small sleeve; 23. Medium sleeve; 3. Fixing bracket; 4. Sealing mechanism; 41. Lip seal; 42. Clamping spring; 43. O-ring seal; 44. Mounting groove; 5. Bolt; 6. Threaded hole. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of an adaptive floating gear structure, including an input sleeve 1, which provides an installation environment for subsequent parts. A floating mechanism 2 is installed on the outer wall of the input sleeve 1. The floating mechanism 2 allows the motor shaft to have a certain gap after extending into the input interface so that it can adapt. A fixing frame 3 is detachably connected to the outer wall of the input sleeve 1. The detachable connection facilitates the installation and maintenance of the fixing frame 3. A sealing mechanism 4 is installed on the inner wall of the fixing frame 3 to provide a sealing effect. Multiple bolts 5 are threadedly connected to the inner wall of the fixing frame 3. The fixing frame 3 is fixed to the input sleeve 1 through the threaded connection of the bolts 5. Threaded holes 6 are opened on the inner wall of the fixing frame 3 to provide connection points for the bolts 5.

[0035] The floating mechanism 2 includes a gear shaft assembly 21, which serves as a power transmission component to transmit torque. A small sleeve 22 is slidably connected to the inner wall of the gear shaft assembly 21. The small sleeve 22 is used to connect to the planetary gear reducer. A middle sleeve 23 is slidably connected to the outer wall of the small sleeve 22. The middle sleeve 23 slides axially along its inner wall to adapt to changes in the position of the motor shaft, so that the small sleeve 22 slides synchronously and transmits motion. The gear shaft assembly 21 includes a gear sleeve 211, which improves the installation environment for subsequent connections. An input gear 212 is slidably connected to the inner wall of the gear sleeve 211. The input gear 212 meshes with the gear sleeve 211 to transmit power. The outer wall of the gear sleeve 211 and the inner wall of the input gear 212 are meshingly connected.

[0036] The outer wall of the input sleeve 1 is slidably connected to the inner wall of the gear sleeve 211, the outer wall of the small sleeve 22 is slidably connected to the inner wall of the input gear 212, and the outer wall of the middle sleeve 23 is slidably connected to the inner wall of the input sleeve 1. The inner wall of the gear sleeve 211 and the outer wall of the input sleeve 1 are interference fit, and the outer wall of the small sleeve 22 and the inner wall of the middle sleeve 23 are interference fit.

[0037] Reference Figures 3 to 5 The sealing mechanism 4 includes a lip seal ring 41, which prevents impurities from entering and lubricant from leaking. A clamping spring 42 is fitted on the inner wall of the lip seal ring 41. The clamping spring 42 enhances the fit between the lip seal ring 41 and the motor shaft through tightening force. An O-ring seal ring 43 is fixedly connected to the inner wall of the gear sleeve 211. The O-ring seal ring 43 achieves sealing by filling the gap through elastic deformation. An installation groove 44 is opened on the inner wall of the gear sleeve 211. The installation groove 44 provides a fixed position for the O-ring seal ring 43 to prevent it from shifting.

[0038] The outer wall of the lip seal 41 is fixedly connected to the inner wall of the fixing bracket 3, the outer wall of the O-ring seal 43 is fixedly connected to the inner wall of the mounting groove 44, the inner wall of the input sleeve 1 is provided with multiple threaded holes 6, the outer wall of the bolt 5 is threadedly connected to the inner wall of the input sleeve 1, the outer wall of the bolt 5 is threadedly connected to the inner wall of the threaded hole 6, and the inner wall of the O-ring seal 43 is in contact with the outer wall of the input sleeve 1.

[0039] Working principle: When the floating mechanism 2 needs to be adaptively adjusted in conjunction with the planetary gear reducer, the inner wall of the gear sleeve 211 and the outer wall of the input sleeve 1 are interference-fitted to ensure the stability of the basic structure. The outer wall of the small sleeve 22 is slidably connected to the inner wall of the input gear 212, and the outer wall of the middle sleeve 23 is slidably connected to the inner wall of the input sleeve 1. The inner walls of the small sleeve 22 and the middle sleeve 23 are interference-fitted. A clearance is reserved between the input gear 212 and the middle sleeve 23 to provide adaptive space for the motor shaft to extend, which can offset the coaxiality deviation caused by machining and assembly errors. When the motor shaft is long, it will move to the left after contacting the right end face of the middle sleeve 23, reducing the clearance and ensuring close contact between the motor shaft and the input shaft, thus reducing noise during operation. At the same time, only a small section of the input sleeve 1 is within the fit tolerance, which facilitates motor connection and avoids misalignment problems caused by excessive tightness. This structure increases the adaptability of the motor shaft and the input component, while also being simple in structure and significantly reducing noise.

[0040] The sealing mechanism 4 utilizes the synergistic action of multiple sealing components. The lip seal 41, fixed to the inner wall of the fixed frame 3, and the clamping spring 42 fitted inside the inner wall of the lip seal 41, tighten the lip seal 41 to fit tightly against the surface of the motor shaft, preventing external impurities from entering and preventing internal lubricant leakage. The O-ring seal 43, fixed in the mounting groove 44 on the inner wall of the gear sleeve 211, fills the gap between the gear sleeve 211 and the input sleeve 1 through elastic deformation, thereby achieving a sealing effect, reducing component wear caused by impurities entering and lubricant loss, and improving the operational reliability of the gear structure. This sealing structure ensures a clean internal environment for the floating structure.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-adapting floating function gear structure, comprising an input sleeve (1), characterized in that: The outer wall of the input sleeve (1) is provided with a floating mechanism (2), the outer wall of the input sleeve (1) is detachably connected with a fixing frame (3), the inner wall of the fixing frame (3) is provided with a sealing mechanism (4), the inner wall of the fixing frame (3) is threadedly connected with a plurality of bolts (5), and the inner wall of the fixing frame (3) is provided with a plurality of threaded holes (6). The floating mechanism (2) comprises a gear shaft assembly (21), and the inner wall of the gear shaft assembly (21) is slidably connected with a small sleeve (22).

2. The self-adapting floating function gear structure according to claim 1, characterized in that: The gear shaft assembly (21) comprises a gear sleeve (211), and the inner wall of the gear sleeve (211) is slidably connected with an input gear (212).

3. The self-adapting floating function gear structure according to claim 2, characterized in that: The outer wall of the input sleeve (1) is slidably connected to the inner wall of the gear sleeve (211), the outer wall of the small sleeve (22) is slidably connected to the inner wall of the input gear (212), and the outer wall of the middle sleeve (23) is slidably connected to the inner wall of the input sleeve (1).

4. The self-adapting floating function gear structure according to claim 2, wherein: The inner wall of the gear sleeve (211) is in interference fit with the outer wall of the input sleeve (1), and the outer wall of the small sleeve (22) is in interference fit with the inner wall of the middle sleeve (23).

5. The self-adapting floating function gear structure according to claim 2, characterized in that: The sealing mechanism (4) comprises a lip seal (41), the inner wall of the lip seal (41) is sleeved with a clamping spring (42), the inner wall of the gear sleeve (211) is fixedly connected with an O-shaped seal (43), and the inner wall of the gear sleeve (211) is provided with a mounting groove (44).

6. A self-adapting floating function gear structure according to claim 5, characterized in that: The outer wall of the lip seal (41) is fixedly connected to the inner wall of the fixing frame (3), and the outer wall of the O-shaped seal (43) is fixedly connected to the inner wall of the mounting groove (44).

7. The self-adapting floating function gear structure according to claim 1, wherein: The inner wall of the input sleeve (1) is provided with a plurality of threaded holes (6), and the outer wall of the bolt (5) is threadedly connected to the inner wall of the input sleeve (1).

8. The self-adapting floating function gear structure according to claim 5, characterized in that: The outer wall of the bolt (5) is threadedly connected to the inner wall of the threaded hole (6), and the inner wall of the O-shaped seal (43) is in contact with the outer wall of the input sleeve (1).

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