Shaft end sealed non-metal plate structure easy to deform
By adding sealed end caps to the mounting holes of the easily deformed non-metal plate and adding an O-ring between the mating surfaces of the motor shaft and the sealed end cap, the problem of poor rigidity of the dynamic sealing surfaces of the motor shaft and the motor shaft is solved, and the seal is not easy to install, achieving an efficient dynamic sealing effect, preventing toxic gas leakage and heat loss.
Patent Information
- Application Number
- CN202421428795.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-06-21
AI Technical Summary
There are problems such as poor rigidity of the mating surface, poor opening position accuracy, difficult sealing parts, leakage of toxic gases, odorous air overflow and heat loss.
A shaft-end sealed non-metal plate structure is designed. By adding a sealed end cover to the mounting hole of the easily deformed non-metal plate body, the sealed end cover is installed coaxially in the mounting hole of the easily deformed non-metal plate body, and the motor shaft passes through the sealed end cover to form a dynamic seal. The flange that seals the end cover is secured by rivet nuts and flat head screws, and an O-ring is added between the motor shaft and the mating surface of the sealing end cover for dynamic sealing.
It improves the rigidity of the mating surface between the non-metal plate and the motor shaft, ensures that the seal mating surface does not collapse easily, and the inner hole size of the seal end cap is high, meets the matching requirements of ordinary seals, and is easy to install seals, effectively preventing toxic gas leakage, odorous wind overflow and heat loss.
Smart Images
Figure CN222783007U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of sealing structures, and in particular relates to an easily deformable non-metallic plate structure of a shaft end seal. Background Art
[0002] Designing a dynamic seal at the joint between the easily deformed non-metallic plate, such as a building insulation plate or a foam plate, and the drive shaft / motor shaft (dynamic shaft) has always been a difficult problem in the industry. The existing method of performing a dynamic seal at the joint between the easily deformed non-metallic plate and the motor shaft is to minimize the aperture of the mounting hole on the easily deformed non-metallic plate (such as an insulation plate or a foam plate) for passing the motor shaft. However, minimizing the aperture of the mounting hole still has the following technical problems:
[0003] 1. The mating surface of the deformable non-metallic plate and the motor shaft for dynamic sealing is prone to collapse, has poor rigidity, and is difficult to find the sealing mating surface;
[0004] 2. The opening position accuracy of the deformable non-metallic plate and the motor shaft is poor, which cannot meet the matching requirements of ordinary seals;
[0005] 3. The seals at the dynamic seal between the easily deformed non-metallic plate and the motor shaft are difficult to install.
[0006] 4. It will still cause toxic gas leakage, smelly wind overflow and heat loss. Utility Model Content
[0007] In view of this, the utility model provides a deformable non-metal plate structure for shaft end sealing, which can achieve reliable dynamic sealing between the deformable non-metal plate and the motor shaft.
[0008] The utility model is realized by the following technical solutions:
[0009] A deformable non-metal plate structure for shaft end sealing, comprising: a deformable non-metal plate body and a sealing end cover;
[0010] The deformable non-metal plate body is processed with a mounting hole for passing the motor shaft;
[0011] The sealing end cover is a cylindrical structure, one end of which is provided with a flange;
[0012] The sealing end cover is coaxially mounted in the mounting hole of the easily deformable non-metallic plate body, and the flange of the sealing end cover is fixed on the easily deformable non-metallic plate body;
[0013] The motor shaft coaxially passes through the sealing end cover, and a dynamic seal is formed between the outer circumferential surface of the motor shaft and the inner circumferential surface of the sealing end cover.
[0014] Furthermore, the flange of the sealing end cover is fixedly connected to the deformable non-metallic plate body by means of rivet nuts and flat head screws.
[0015] Furthermore, the specific method of the rivet nut and the flat head screw to fix the sealing end cover to the easily deformable non-metallic plate body is:
[0016] The rivet nut is embedded and fixed in the easily deformed non-metallic plate body. After the flat head screw passes through the flange of the sealing end cover, it is tightened in the rivet nut through the thread to achieve the fixed connection between the sealing end cover and the easily deformed non-metallic plate body.
[0017] Furthermore, the axial length of the sealing end cover is less than or equal to the thickness of the deformable non-metallic plate body.
[0018] Furthermore, an O-ring is added between the matching surfaces of the motor shaft and the sealing end cover for dynamic sealing.
[0019] Beneficial effects:
[0020] (1) The utility model adds a sealing end cover to the mounting hole of the deformable non-metallic plate body, and uses the inner hole of the sealing end cover to replace the mounting hole of the deformable non-metallic plate body to cooperate with the motor shaft. The inner hole of the sealing end cover serves as a new working sealing surface (i.e., a preset working surface), thereby improving the rigidity of the matching surface, making it less likely for the matching surface to collapse and easier to find the sealing matching surface; the inner hole of the sealing end cover has high dimensional accuracy, which can meet the matching requirements of ordinary seals and is easy to install the seals; at the same time, the dynamic seal between the sealing end cover and the motor shaft can meet the sealing requirements and effectively prevent the leakage of toxic gases, the overflow of smelly wind and heat loss.
[0021] (2) The flange of the sealing end cover of the utility model is fixedly connected to the easily deformable non-metallic plate body by means of rivet nuts and flat head screws. This fixing method is simple, reliable and easy to implement.
[0022] (3) The utility model adds an O-ring between the mating surfaces of the motor shaft and the sealing end cover for dynamic sealing, further improving the sealing performance of the dynamic seal between the sealing end cover and the motor shaft, and further preventing the leakage of toxic gases, the overflow of smelly wind and heat loss. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a structural composition diagram of the utility model;
[0024] Figure 2 for Figure 1 Right view of;
[0025] Among them, 1- easily deformable non-metallic plate body, 2- sealing end cover, 3- motor shaft, 2-1- flat head screw, 2-2- rivet nut. DETAILED DESCRIPTION
[0026] The present invention is described in detail below with reference to the accompanying drawings and embodiments.
[0027] This embodiment provides a non-metal plate structure that is easily deformed and sealed at the shaft end. Figure 1 and Figure 2 , comprising: a deformable non-metallic plate body 1 and a sealing end cover 2;
[0028] The deformable non-metal plate body 1 is processed with a mounting hole for passing the motor shaft 3, and the aperture of the mounting hole is larger than the diameter of the motor shaft 3;
[0029] The sealing end cover 2 is a cylindrical structure, and a flange is provided at one end thereof; the outer diameter of the sealing end cover 2 is smaller than the aperture of the mounting hole of the easily deformable non-metallic plate body 1, and the inner diameter of the sealing end cover 2 is equal to the diameter of the motor shaft 3;
[0030] The sealing end cover 2 is coaxially installed in the mounting hole of the easily deformed non-metallic plate body 1, and the flange of the sealing end cover 2 is fixed on the easily deformed non-metallic plate body 1 through a rivet nut 2-2 and a flat head screw 2-1. The specific fixing process is: the rivet nut 2-2 is embedded and fixed in the easily deformed non-metallic plate body 1, and the flat head screw 2-1 passes through the flange of the sealing end cover 2 and is tightened in the rivet nut 2-2 through a thread to realize the fixed connection between the sealing end cover 2 and the easily deformed non-metallic plate body 1; wherein the axial length of the sealing end cover 2 is less than or equal to the thickness of the easily deformed non-metallic plate body 1;
[0031] The motor shaft 3 coaxially passes through the sealing end cover 2, and a dynamic seal is formed between the outer circumferential surface of the motor shaft 3 and the inner circumferential surface of the sealing end cover 2; when the sealing requirement is low, the dynamic seal can be achieved by relying solely on the matching relationship between the outer circumferential surface of the motor shaft 3 and the inner circumferential surface of the sealing end cover 2; when the sealing requirement is high, sealing material such as an O-ring can be added between the matching surfaces of the motor shaft 3 and the sealing end cover 2 for dynamic sealing.
[0032] Workflow:
[0033] The deformable non-metallic plate body 1 is provided with a mounting hole of a suitable size according to the position of the motor shaft 3, and the sealing end cover 2 and the motor shaft 3 are coaxially installed. After the sealing end cover 2 and the motor shaft 3 are installed at a certain position, the sealing end cover 2 is fixed to the deformable non-metallic plate body 1 with a rivet nut 2-2 and a flat head screw 2-1;
[0034] When the motor shaft 3 is working, the motor shaft 3 moves, and the sealing end cover 2 and the easily deformed non-metallic plate body 1 are relatively still. The sealing end cover 2 and the easily deformed non-metallic plate body 1 are static seals, and the space gap formed by the motor shaft 3 and the sealing end cover 2 is relatively stable. The sealing material is increased according to the sealing requirements (add O-rings if the sealing requirements are high, and no O-rings are required if the requirements are low).
[0035] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A deformable non-metallic plate structure for shaft end sealing, characterized in that: include: Deformable non-metallic plate body and sealed end caps; The deformable non-metal plate body is processed with a mounting hole for passing the motor shaft; The sealing end cover is a cylindrical structure, one end of which is provided with a flange; The sealing end cover is coaxially mounted in the mounting hole of the easily deformable non-metallic plate body, and the flange of the sealing end cover is fixed on the easily deformable non-metallic plate body; The motor shaft coaxially passes through the sealing end cover, and a dynamic seal is formed between the outer circumferential surface of the motor shaft and the inner circumferential surface of the sealing end cover.
2. The deformable non-metal plate structure for shaft end sealing according to claim 1, characterized in that: The flange of the sealing end cover is fixedly connected to the easily deformable non-metallic plate body by means of rivet nuts and flat head screws.
3. The deformable non-metal plate structure for shaft end sealing according to claim 2, characterized in that: The rivet nut is embedded and fixed in the body of the easily deformable non-metallic plate, and the flat head screw passes through the flange of the sealing end cover and is fixedly connected with the rivet nut thread.
4. A deformable non-metallic plate structure for shaft end sealing according to any one of claims 1 to 3, characterized in that: The axial length of the sealing end cover is less than or equal to the thickness of the deformable non-metallic plate body.
5. The deformable non-metal plate structure for shaft end sealing according to claim 1, characterized in that: An O-ring is added between the mating surfaces of the motor shaft and the sealing end cover for dynamic sealing.