Torsion rubber core with good sealing effect
By designing a combination of elastic oil seal and sealing cover in the torsion glue core, the problems of lubricating oil leakage and impurities are solved, achieving better sealing effect and longer service life.
Patent Information
- Application Number
- CN202421617018.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-09
AI Technical Summary
During use, existing torsion glue cores are prone to cause lubricating oil leakage and impurities to enter, affecting the rotation and swing of the mandrel and sealing effect.
A torsion rubber core including a shell and a mandrel is designed. An elastic oil seal is provided at both ends of the shell. The oil seal has a sleeve hole and a deformation part. The sleeve is attached to the mandrel, and the sealing cover sleeve is arranged on the outside of the sleeve. The sealing effect is achieved by the cooperation between the oil seal and the sealing cover.
Effectively prevent lubricating oil leakage and impurities from entering, enhance the life of the torsion core, and achieve a good sealing effect without affecting the swing of the mandrel.
Smart Images
Figure CN222798010U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile accessories, in particular to a torsion rubber core with good sealing effect. Background Art
[0002] The torsion rubber core acts on both ends of the torsion bar of the chassis bridge of Sinotruk automobile, and plays the role of shock absorption, buffering, guiding and transmitting force. Most torsion rubber cores are made of metal ball pins and rubber vulcanization. At present, the connecting shaft is generally a spherical shaft or a shaft with support plates on both sides. The axial stress during pushing, pulling and torsion and swinging motion is buffered by connecting the shaft and the rubber and other elastomers set in its structure, which plays an extremely important role in the operation and use of the automobile. In order to ensure the range of motion of the core shaft, the opening on the shell is generally larger than the diameter of the cylindrical part of the core shaft, so the lubricating oil is easy to leak and impurities are easy to enter. Therefore, a new torsion rubber core is needed to solve this problem. Utility Model Content
[0003] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures specifically pointed out in the description and other drawings of the description.
[0004] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a torsion rubber core with good sealing effect.
[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is: a torsion rubber core with good sealing effect, comprising an outer shell and a core shaft, oil seals are arranged at both ends of the outer shell, the oil seals are elastic, the oil seals have a sleeve hole for the core shaft to pass through, the oil seals are provided with a deformation portion at the edge of the sleeve hole, the oil seals are provided with a sleeve along the edge of the sleeve hole, the sleeve is fitted on the core shaft, the core shaft is provided with a sealing cover, the sealing cover is sleeved on the outside of the sleeve, and the core shaft is provided with a device for limiting the sealing cover.
[0006] By adopting the above technical scheme, oil seals at both ends of the shell are used to prevent the leakage of lubricating oil inside the shell, and impurities on the outside are prevented from entering between the shell and the core shaft to affect the rotation and swing of the core shaft. The oil seal realizes the sealing between the core shaft through a sleeve tightly attached to the core shaft. The sleeve is surrounded by a deformation part, and the deformation part is a ring structure with a thinner thickness on the oil seal. When the core shaft swings, the deformation of the deformation part can be utilized. A sealing cover is also provided above the sleeve, and the sealing cover can cover the gap between the sleeve and the core shaft, thereby further preventing impurities from entering between the shell and the core shaft. Through the cooperation of the oil seal and the sealing cover, wear between the core shaft and the shell due to the loss of lubricating oil and the entry of impurities can be avoided, thereby enhancing the life of the torque rubber core.
[0007] Preferably, the fixing member is a threaded tube, the threaded tube is sleeved on the outside of the core shaft, the threaded tube is threadedly connected to the core shaft, and the threaded tube abuts against the sealing cover. The utility model utilizes the threaded relationship between the threaded tube and the core shaft so that the threaded tube can remain abutted against the top of the sealing cover, thereby preventing the sealing cover from falling off the core shaft.
[0008] Preferably, there is a gap between the sealing cover and the mandrel, and the sealing cover is slidably connected to the threaded tube and the mandrel. The utility model utilizes the gap between the sealing cover and the mandrel to enable the sealing cover to slide within a certain range, thereby further enhancing the mobility of the mandrel.
[0009] Preferably, the mandrel is provided with step 1 and step 2, the sealing cover abuts against step 2, and the threaded tube abuts against step 1. The utility model can position the sealing cover by using step 2, and can prevent the threaded tube from being pressed tightly against the sealing cover during assembly by using step 1, so that the sealing cover can move.
[0010] Preferably, a gasket is provided between the oil seal and the housing. The utility model utilizes the gasket to raise the position of the oil seal, so that the oil seal can be sleeved on the cylindrical part of the core shaft, ensuring the movable space of the spherical part of the core shaft.
[0011] Preferably, the outer shell includes an inner sleeve and two ball bowls, the two ball bowls are wrapped around the outer side of the core shaft, and the core shaft is slidably connected to the two ball bowls, and the inner sleeve is sleeved on the outer sides of the two ball bowls. The utility model divides the outer shell into an inner sleeve and two ball bowls, and during assembly, two ball bowls can be added to wrap around the outer side of the core shaft, and the inner sleeve is sleeved on the two ball bowls so that they will not separate, thereby achieving assembly between the outer shell and the core shaft.
[0012] Preferably, the two bowls are both provided with bosses, and the inner sleeve abuts against the two bosses. The utility model can fix the inner sleeve by using the bosses, so that the inner sleeve will not exceed the two ends of the bowl during assembly.
[0013] Preferably, two cross-shaped oil grooves are provided inside the ball bowl. The utility model utilizes two cross-shaped oil grooves to store lubricating oil, so that lubricating oil can be continuously applied to the mandrel. The cross-shaped arrangement makes the direction of the oil grooves perpendicular to the movement direction of the mandrel, thereby increasing the application area.
[0014] Preferably, an outer sleeve is provided outside the inner sleeve, and PU glue is filled between the outer sleeve and the inner sleeve. The utility model further strengthens the strength of the outer shell by using the outer sleeve and PU glue.
[0015] In summary, the beneficial effects of the utility model are:
[0016] 1. The combination of oil seal and sealing cover can avoid the loss of lubricating oil and the entry of impurities between the core shaft and the shell, thereby enhancing the life of the torque rubber core.
[0017] 2. The elasticity of the oil seal and the movable sealing cover can provide conditions for the swing of the core shaft, thereby achieving a good sealing effect without affecting the swing of the core shaft.
[0018] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.
[0019] Undoubtedly, these and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiments described with reference to various figures and drawings.
[0020] In order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, one or several preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.
[0022] In the drawings, the same reference numerals are used for the same components and the drawings are schematic and not necessarily drawn to scale.
[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only one or several embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on such drawings without paying creative work.
[0024] Figure 1 It is a schematic diagram of the overall cross-sectional structure;
[0025] Figure 2 It is a schematic diagram of the ball bowl structure.
[0026] Explanation of main figure marks: 1. outer shell; 2. oil seal; 3. deformation part; 4. sleeve; 5. sealing cover; 6. threaded pipe; 7. gap; 8. step one; 9. inner sleeve; 10. ball bowl; 11. oil tank; 12. outer sleeve; 13. PU glue. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model, but not to limit the utility model.
[0028] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0029] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through a transition structure, but are connected to form a whole through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.
[0030] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. 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 may be combined in an appropriate manner in any one or more embodiments or examples.
[0031] like Figure 1-2As shown, a torsion rubber core with good sealing effect includes a shell 1 and a core shaft 14. Oil seals 2 are arranged at both ends of the shell 1. The oil seals 2 are elastic. The oil seals 2 have a sleeve hole for the core shaft 14 to pass through. The oil seal 2 is provided with a deformation portion 3 at the edge of the sleeve hole. The oil seal 2 is provided with a sleeve 4 along the edge of the sleeve hole. The sleeve 4 is attached to the core shaft 14. The core shaft 14 is sleeved with a sealing cover 5. The sealing cover 5 is sleeved on the outside of the sleeve 4. The core shaft 14 is provided with a device for limiting the sealing cover 5.
[0032] By adopting the above technical scheme, the oil seals 2 at both ends of the shell 1 are used to prevent the leakage of the lubricating oil inside the shell 1, and also prevent the impurities on the outside from entering between the shell 1 and the core shaft 14, affecting the rotation and swing of the core shaft 14. The oil seal 2 realizes the sealing between the core shaft 14 by the sleeve 4 tightly attached to the core shaft 14. The sleeve 4 is surrounded by a deformation part 3. The deformation part 3 is a ring structure with a relatively thin thickness on the oil seal 2. When the core shaft 14 swings, the deformation of the deformation part 3 can be utilized. A sealing cover 5 is also arranged above the sleeve 4. The sealing cover 5 can cover the gap 7 between the sleeve 4 and the core shaft 14, thereby further preventing impurities from entering between the shell 1 and the core shaft 14. The cooperation between the oil seal 2 and the sealing cover 5 can avoid the wear between the core shaft 14 and the shell 1 due to the loss of lubricating oil and the entry of impurities, thereby enhancing the life of the torque rubber core.
[0033] The fixing member is a threaded tube 6, which is sleeved on the outside of the core shaft 14. The threaded tube 6 is threadedly connected to the core shaft 14, and the threaded tube 6 abuts on the sealing cover 5. By utilizing the threaded relationship between the threaded tube 6 and the core shaft 14, the threaded tube 6 can be kept abutting on the top of the sealing cover 5, so that the sealing cover 5 will not fall off the core shaft 14.
[0034] There is a gap 7 between the sealing cover 5 and the mandrel 14, and the sealing cover 5 is slidably connected with the threaded tube 6 and the mandrel 14. By utilizing the gap 7 between the sealing cover 5 and the mandrel 14, the sealing cover 5 can slide within a certain range, thereby further enhancing the mobility of the mandrel 14.
[0035] The mandrel 14 is provided with a step 1 8 and a step 2, the sealing cover 5 abuts on the step 2, and the threaded tube 6 abuts on the step 1 8. The step 2 can be used to locate the position of the sealing cover 5, and the step 1 8 can be used to prevent the threaded tube 6 from being pressed tightly on the sealing cover 5 during assembly, so that the sealing cover 5 can move.
[0036] A gasket 15 is provided between the oil seal 2 and the housing 1. The gasket 15 can be used to raise the position of the oil seal 2 so that the oil seal 2 can be sleeved on the cylindrical part of the core shaft 14, ensuring the movable space of the spherical part of the core shaft 14.
[0037] The outer shell 1 includes an inner sleeve 9 and two ball bowls 10. The two ball bowls 10 are wrapped around the outside of the core shaft 14. The core shaft 14 is slidably connected to the two ball bowls 10, and the inner sleeve 9 is sleeved on the outside of the two ball bowls 10. By dividing the outer shell 1 into the inner sleeve 9 and the two ball bowls 10, the two ball bowls 10 can be wrapped around the outside of the core shaft 14 during assembly, and the inner sleeve 9 is sleeved on the two ball bowls 10 so that they will not separate, thereby achieving assembly between the outer shell 1 and the core shaft 14.
[0038] Both bowls 10 are provided with bosses, and the inner sleeve 9 abuts on the two bosses. The inner sleeve 9 can be fixed by the bosses so that the inner sleeve 9 will not exceed the two ends of the bowl 10 during assembly.
[0039] Two cross-shaped oil grooves 11 are provided inside the bowl 10. The two cross-shaped oil grooves 11 can store lubricating oil so that the lubricating oil can be continuously applied to the mandrel 14. The cross-shaped arrangement makes the direction of the oil grooves 11 perpendicular to the movement direction of the mandrel 14, thereby increasing the application area.
[0040] An outer sleeve 12 is provided outside the inner sleeve 9, and a PU glue 13 is filled between the outer sleeve 12 and the inner sleeve 9. The outer sleeve 12 and the PU glue 13 are used to further strengthen the strength of the outer shell 1.
[0041] It should be noted that many specific details are set forth in the above description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.
Claims
1. A torsion rubber core with good sealing effect, comprising a housing (1) and a core shaft (14), characterized in that: Oil seals (2) are provided at both ends of the housing (1); the oil seals (2) are elastic; the oil seals (2) have a sleeve hole for a core shaft (14) to pass through; the oil seals (2) are provided with a deformation portion (3) at the edge of the sleeve hole; the oil seals (2) are provided with a sleeve (4) along the edge of the sleeve hole; the sleeve (4) fits on the core shaft (14); the core shaft (14) is sleeved with a sealing cover (5); the sealing cover (5) is sleeved on the outside of the sleeve (4); the core shaft (14) is provided with a fixing member for restricting the sealing cover (5) on the core shaft (14).
2. The torsion rubber core with good sealing effect according to claim 1, characterized in that: The fixing member is a threaded tube (6), the threaded tube is sleeved on the outside of the core shaft (14), the threaded tube (6) is threadedly connected to the core shaft (14), and the threaded tube (6) abuts against the sealing cover (5).
3. The torsion rubber core with good sealing effect according to claim 2, characterized in that: A gap (7) is provided between the sealing cover (5) and the core shaft (14), and the sealing cover (5) is slidably connected to the threaded tube (6) and the core shaft (14).
4. The torsion rubber core with good sealing effect according to claim 3 is characterized in that: The core shaft (14) is provided with a step 1 (8) and a step 2, the sealing cover (5) abuts against the step 2, and the threaded tube (6) abuts against the step 1 (8).
5. The torsion rubber core with good sealing effect according to claim 1, characterized in that: A gasket (15) is provided between the oil seal (2) and the housing (1).
6. The torsion rubber core with good sealing effect according to claim 1, characterized in that: The outer shell (1) comprises an inner sleeve (9) and two ball bowls (10), wherein the two ball bowls (10) are wrapped around the outside of the core shaft (14), and the core shaft (14) is slidably connected to the two ball bowls (10), and the inner sleeve (9) is sleeved on the outside of the two ball bowls (10).
7. The torsion rubber core with good sealing effect according to claim 6, characterized in that: The two ball bowls (10) are both provided with bosses, and the inner sleeve (9) abuts against the two bosses.
8. The torsion rubber core with good sealing effect according to claim 6, characterized in that: Two cross-shaped oil grooves (11) are arranged inside the ball bowl (10).
9. The torsion rubber core with good sealing effect according to claim 6, characterized in that: An outer sleeve (12) is provided on the outer side of the inner sleeve (9), and PU glue (13) is filled between the outer sleeve (12) and the inner sleeve (9).