Integrated blank cap
The integrated blind cover simplifies gearbox lubrication by guiding oil directly to gear shafts, addressing structural complexity and cost issues in existing methods.
Patent Information
- Application Number
- CN202420217958.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-30
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-01-30
AI Technical Summary
The existing lubrication methods for gearboxes require complex structures and high costs due to the need for separate oil guide pipes and additional holes in the gearbox housing, making them unsuitable for widespread use.
An integrated blind cover with an oil guiding structure that directs lubricating oil to the gear shaft, eliminating the need for separate oil guide pipes and simplifying the overall structure.
The integrated blind cover achieves effective lubrication of gear shafts with a simplified design, reducing manufacturing costs and preventing oil leakage.
Smart Images
Figure CN222229383U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gear box blind covers, in particular to an integrated blind cover. Background Art
[0002] A gearbox is a mechanical device consisting of two or more gears. It has the functions of accelerating and decelerating, changing transmission direction, changing torque, controlling clutch, and distributing power, and is widely used in mechanical transmission.
[0003] At present, gearboxes are generally lubricated by splash lubrication, which can directly lubricate the gear tooth surface. However, the lubrication method for the mating part between the idler gear and the gear shaft in the gearbox generally requires the design of an oil guide method first. Specifically, an axial hole is formed by drilling a hole in the center of the gear shaft, and a radial oil groove is opened at the installation position of the idler gear on the gear shaft, and an oil guide pipe is added to the end of the gear shaft. During actual working, the lubricating oil first enters the axial hole through the oil guide pipe, and then enters the radial oil groove under the action of the centrifugal force generated by the rotation of the gear shaft, thereby realizing the lubrication of the mating part between the idler gear and the gear shaft.
[0004] However, when the gear shaft designed by the above oil guide method is installed in conjunction with the gear box housing through a bearing, the gear box housing needs to have another hole opened and a cover pressed in to seal it to prevent leakage of the lubricating oil. At the same time, the oil guide pipe needs to be designed separately according to other components of the gear box, resulting in a complex overall structure and high cost, which is not suitable for popularization. Utility Model Content
[0005] Based on this, the purpose of the utility model is to provide an integrated blind cover, which aims to solve the existing lubrication method for the matching parts between the hollow sleeve gear and the gear shaft in the gear box, which generally requires the oil guide method to be designed first. When the designed gear shaft is installed in conjunction with the gear box housing through the bearing, the gear box housing needs to have another hole opened and a blind cover pressed in to seal it to prevent lubricating oil leakage. At the same time, the oil guide pipe needs to be designed separately according to other components of the gear box, resulting in a complex overall structure, high manufacturing cost, and technical problems that are not suitable for popularization and use.
[0006] The utility model provides an integrated blind cover, comprising a blind cover body and an oil guiding structure arranged on one side of the blind cover body, the oil guiding structure comprising an oil guiding portion connected to the surface of the blind cover body and an oil blocking portion connected to the oil guiding portion, the oil guiding portion being located at the geometric center of the surface of the blind cover body, the oil blocking portion comprising a plurality of oil blocking plates arranged along the circumference of the oil guiding portion, an oil storage area being formed between two adjacent oil blocking plates and the surface of the blind cover body, the oil guiding portion being provided with an inclined surface corresponding to the oil storage area to guide the flow direction of the lubricating oil stored in the oil storage area.
[0007] Compared with the blind cover in the prior art, the beneficial effect of the integrated blind cover of the utility model is that the integrated blind cover of the utility model has a simple structure. By arranging an oil guide structure on one side of the blind cover body, it is possible to guide the lubricating oil to flow to the shaft hole of the gear shaft, thereby achieving lubrication of the mating part between the hollow sleeve gear and the gear shaft in the gear box. There is no need to design an oil guide pipe separately, which greatly reduces the cost of use.
[0008] In addition, the integrated cover according to the utility model may also have the following additional technical features:
[0009] Optionally, the height of the oil guide portion is greater than the height of the oil baffle plate.
[0010] Optionally, the oil guide part includes a connecting end connected to the surface of the blind cover body and an oil guide end extending outward from the connecting end, and a plurality of oil baffles are provided on the peripheral surface of the connecting end. When the integrated blind cover is pressed into the gear box housing, the oil guide end is located inside the axial hole of the gear shaft.
[0011] Optionally, the centers of the surface of the cover body, the connecting end and the oil guiding end are located on the same horizontal line, and the cross section of the connecting end is larger than the cross section of the oil guiding end to form the inclined surface.
[0012] Optionally, the oil baffle plate includes a first end connected to the oil guide portion and a second end extending outward from the first end, the second end is arranged close to the outer edge of the surface of the cover body, and the body of the oil baffle plate is connected to the surface of the cover body.
[0013] Optionally, the oil baffle plate is an arc-shaped plate.
[0014] Optionally, the integrated cover also includes a positioning plate, the plate body of which is connected to the surface of the cover body, an oil inlet is formed between one end of the positioning plate and the second end of one of the oil baffles, and the other end of the positioning plate is flush with the outer edge of the surface of the cover body.
[0015] Optionally, the plate height of the positioning plate is equal to the plate height of the oil baffle plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a three-dimensional structural diagram of the integrated cover of the utility model;
[0017] Figure 2 It is a structural schematic diagram of the integrated cover of the utility model at a certain viewing angle;
[0018] Figure 3 for Figure 2 The cross-sectional structure diagram at AA in the middle;
[0019] Figure 4It is a schematic diagram of the cross-sectional structure of the integrated cover of the utility model in the use state.
[0020] Among them, the above-mentioned drawings include the following figure marks: 1-integrated cover; 10-cover body; 20-oil guide part; 21-connecting end; 22-oil guide end; 30-oil baffle part; 31-oil baffle plate; 40-positioning plate; 50-oil inlet; 2-gear shaft; 3-first idler gear; 4-second idler gear; 5-bearing; 6-inner ring retaining ring; 7-gear box housing; 8-outer ring retaining ring.
[0021] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION
[0022] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0023] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0025] See also Figures 1 to 4 , shown is an integrated cover 1 of the utility model, which includes a cover body 10 and an oil guide structure arranged on one side of the cover body.
[0026] As an example, the oil guiding structure includes an oil guiding portion 20 connected to the surface of the cover body 10 and an oil baffle portion 30 connected to the oil guiding portion 20. The oil guiding portion 20 is located at the geometric center of the surface of the cover body 10. The oil baffle portion 30 includes a plurality of oil baffle plates 31 arranged circumferentially along the oil guiding portion 20. An oil storage area for storing lubricating oil is formed between two adjacent oil baffle plates 31 and the surface of the cover body 10. The oil guiding portion 20 is provided with an inclined surface 23 corresponding to the oil storage area to guide the flow direction of the lubricating oil stored in the oil storage area.
[0027] Specifically, the oil guide portion 20 includes a connection end 21 connected to the surface of the cover body 10 and an oil guide end 22 extending outward from the connection end 21. A plurality of oil baffles 31 are provided on the peripheral surface of the connection end 21. The height of the oil guide portion 20 is greater than the height of the oil baffles 31. Figure 3 As shown, the centers of the surface of the cover body 10, the connecting end 21 and the oil guiding end 22 are located on the same horizontal line, and the cross section at the connecting end 21 is larger than the cross section at the oil guiding end 22, so that an inclined surface 23 for guiding the flow of lubricating oil is formed between the connecting end 21 and the oil guiding end 22.
[0028] In this embodiment, if Figure 1 As shown, the oil guide part 20 is in the shape of a truncated cone, and the bottom surface of the truncated cone is integrally connected with the surface of the cover body 10 to form the connection end 21, and the connection end 21 is a hollow design, which can reduce the manufacturing cost of the integrated cover. The end where the upper bottom surface of the truncated cone is located is the oil guide end 22. In actual use, Figure 4 As shown, when the integrated cover 1 of the utility model is pressed into the gear box housing 7, the oil guide end 22 is located inside the shaft hole of the gear shaft 2, so that the lubricating oil can enter the shaft hole of the gear shaft 2 through the oil guide end 22.
[0029] Furthermore, the oil baffle plate 31 includes a first end connected to the oil guide portion 20 and a second end extending outward from the first end, the second end is disposed close to the outer edge of the surface of the cover body 10, and the body of the oil baffle plate 31 is connected to the surface of the cover body 10. Specifically, Figure 1 to Figure 2 As shown, the oil baffle plate 31 is an arc-shaped plate. As a specific example, in this embodiment, four arc-shaped oil baffle plates 31 are evenly arranged on the surface of the cover body 10 with the oil guide portion 20 as the center. The first ends of the four oil baffle plates 31 are connected to the peripheral surface of the connecting end 21 of the oil guide portion 20, and the second ends of the four oil baffle plates 31 are arranged close to the outer edge of the surface of the cover body 10. It should be noted that the design of the number and shape of the oil baffle plates on the surface of the cover body is not limited to the description in the above embodiment, and can also be other structural designs that can meet the purpose of the utility model.
[0030] At the same time, the bodies of the four oil baffles 31 are all connected to the surface of the cover body 10, so that an oil storage area for storing lubricating oil is formed between two adjacent oil baffles 31 and the surface of the cover body 10. It should be noted that a certain gap is also provided between the first ends of the two adjacent oil baffles 31 connected to the oil guide part 20, so as to form a flow channel connected to the oil storage area on the peripheral surface of the oil guide part, so that the lubricating oil in the oil storage area is guided to the working area that needs to be lubricated through the inclined surface of the oil guide part 20.
[0031] Furthermore, if Figure 1 As shown, the integrated cover 1 further includes a positioning plate 40 for positioning the press-fitting position of the integrated cover 1, and an oil inlet 50 is formed between the positioning plate 40 and one of the oil baffles 31. Specifically, the body of the positioning plate 40 is connected to the surface of the cover body 10, and the oil inlet 50 is formed between one end of the positioning plate 40 and the second end of one of the oil baffles 31 on the surface of the cover body 10, and the other end of the positioning plate 40 is flush with the outer edge of the surface of the cover body 10. The plate height of the positioning plate 40 is equal to the plate height of the oil baffle 31.
[0032] The working principle of the integrated cover of the utility model during specific use is as follows: Figure 4 As shown, firstly, the bearing 5 is pressed into the gearbox housing 7, and the bearing outer ring snap ring 8 is used to fix the bearing 5 and the gearbox housing 7, then the gear shaft 2 is pressed into the gearbox housing 7, and the bearing inner ring snap ring 6 is used to fix the bearing 5 and the gear shaft 2, and finally, the integrated cover 1 is pressed into the end of the gearbox housing 7 away from the gear shaft 2, and the outer edge of the integrated cover 1 is interference fit with the gearbox housing 7 to achieve the sealing of the gearbox 7 to prevent the leakage of lubricating oil. It should be noted that in the process of pressing the integrated cover 1, the oil inlet 50 formed between the positioning plate 40 and the oil baffle plate 31 needs to be pressed against the oil channel of the gearbox housing 7, so that the lubricating oil in the oil channel of the gearbox housing 7 can directly enter the oil storage area of the integrated cover 1 through the oil inlet 50.
[0033] When the gearbox is working, the gear shaft 2 rotates, and the airflow velocity in the shaft hole of the gear shaft 2 is increased, so that the pressure inside the shaft hole becomes smaller, and a pressure difference is formed between the space between the integrated cover 1 and the bearing 5, that is, the area where the oil storage area is located and the shaft hole of the gear shaft 2. Under the action of the pressure difference, the lubricating oil in the oil storage area on the integrated cover 1 moves toward the shaft hole along the inclined surface of the oil guide part 20. In other words, the lubricating oil in the oil passage of the gearbox housing 7 first enters the oil storage area on the integrated cover 1 through the oil inlet 50 for proper storage, and then enters the shaft hole of the gear shaft 2 along the oil guide part 20 under the action of the pressure difference. The lubricating oil in the shaft hole of the gear shaft 2 enters the radial oil groove on the gear shaft 2 under the action of the centrifugal force generated by the rotation of the gear shaft 2, that is, the first idler gear 3 and the gear shaft 2 are lubricated at the mating part through the first oil groove, and the second idler gear 4 and the gear shaft 2 are lubricated at the mating part through the second oil groove.
[0034] In summary, the integrated cover structure of the utility model is simple. By setting an oil guide structure on one side of the cover body, the lubricating oil is guided to the shaft hole of the gear shaft, and there is no need to design an oil guide pipe separately, which greatly reduces the cost of use. Specifically, the oil guide structure includes an oil guide part and an oil baffle part. The oil baffle part forms multiple oil storage areas on the surface of the cover body to store the lubricating oil. In the actual working process, the lubricating oil in the oil storage area is guided to the shaft hole of the gear shaft through the inclined surface on the oil guide part, thereby achieving lubrication of the mating part between the hollow sleeve gear and the gear shaft in the gear box.
[0035] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0036] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. An integrated cover, characterized in that: It includes a sealing cover body and an oil guiding structure arranged on one side of the sealing cover body, the oil guiding structure includes an oil guiding part connected to the surface of the sealing cover body and an oil blocking part connected to the oil guiding part, the oil guiding part is located at the geometric center of the surface of the sealing cover body, the oil blocking part includes a plurality of oil blocking plates arranged along the circumference of the oil guiding part, an oil storage area is formed between two adjacent oil blocking plates and the surface of the sealing cover body, and the oil guiding part is provided with an inclined surface corresponding to the oil storage area to guide the flow direction of the lubricating oil stored in the oil storage area.
2. The integrated cover according to claim 1, characterized in that: The height of the oil guide portion is greater than the plate height of the oil baffle plate.
3. The integrated cover according to claim 1, characterized in that: The oil guide part includes a connecting end connected to the surface of the blind cover body and an oil guide end extending outward from the connecting end. A plurality of oil baffles are provided on the circumferential surface of the connecting end. When the integrated blind cover is pressed into the gear box housing, the oil guide end is located inside the axial hole of the gear shaft.
4. The integrated cover according to claim 3, characterized in that: The centers of the surface of the cover body, the connecting end and the oil guiding end are located on the same horizontal line, and the cross section of the connecting end is larger than the cross section of the oil guiding end to form the inclined surface.
5. The integrated cover according to claim 1, characterized in that: The oil baffle plate includes a first end connected to the oil guide portion and a second end extending outward from the first end, the second end is arranged close to the outer edge of the surface of the cover body, and the body of the oil baffle plate is connected to the surface of the cover body.
6. The integrated cover according to claim 5, characterized in that: The oil baffle plate is an arc-shaped plate.
7. The integrated cover according to claim 5, characterized in that: The integrated cover also includes a positioning plate, the plate body of which is connected to the surface of the cover body, an oil inlet is formed between one end of the positioning plate and the second end of one of the oil baffles, and the other end of the positioning plate is flush with the outer edge of the cover body surface.
8. The integrated cover according to claim 7, characterized in that: The plate height of the positioning plate is equal to the plate height of the oil baffle plate.