Torsion rubber core with elastic oil seal

Abstract

The utility model discloses a torsion rubber core with an elastic oil seal, and belongs to the technical field of automobile parts. The torsion rubber core comprises a shell and a mandrel, oil seals are arranged at the two ends of the shell, the oil seals have elasticity, each oil seal comprises a connecting ring, a deformation part and a sleeve, the connecting rings and the sleeves are connected into a whole through the deformation parts, the connecting rings are connected to the shell, the sleeves are arranged on the mandrel in a sleeving mode, and the sections of the deformation parts are in a broken line shape. According to the torsion rubber core, abrasion caused by loss of lubricating oil and entry of impurities between the core shaft and the shell can be avoided through the oil seal, the service life of the torsion rubber core is prolonged, conditions can be provided for swinging of the core shaft through the deformation part with the broken-line-shaped section, and therefore the good sealing effect is achieved while swinging of the core shaft is not affected; meanwhile, the effect similar to a spring can be achieved, and a certain buffering effect is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a torsion rubber core with an elastic oil seal. 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 an elastic oil seal.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is: a torsion rubber core with an elastic oil seal, 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 include a connecting ring, a deformation part and a sleeve, the connecting ring and the sleeve are connected into one body through the deformation part, the connecting ring is connected to the shell, the sleeve is sleeved on the core shaft, and the cross-section of the deformation part is a broken line shape.

[0006] By adopting the above technical scheme, the oil seals at both ends of the shell can avoid wear between the core shaft and the shell due to the loss of lubricating oil and the entry of impurities, thereby enhancing the life of the torque rubber core. The oil seal achieves sealing between the core shaft through a sleeve tightly attached to the core shaft. The oil seal is connected to the shell through a connecting ring. The sleeve and the connecting ring are connected by a deformation part. The cross-section of the deformation part is in a broken line shape. When the core shaft swings, it can swing by utilizing the deformation ability of the deformation part. At the same time, the deformation part with the broken line cross-section can also form a spring-like effect, providing a certain buffering capacity.

[0007] Preferably, a sealing groove is provided on the core shaft, and the sleeve is embedded in the sealing groove. The utility model utilizes the sealing groove to make the gap between the sleeve and the core shaft tortuous, thereby further enhancing the sealing effect.

[0008] 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.

[0009] Preferably, the core column includes a connecting shaft and a ball shaft, the ball shaft is provided with a slot, an insert block is fixedly connected to the bottom of the connecting shaft, the insert hole is inserted into the slot, and the connecting shaft is provided with a fixing mechanism for fixing the insert block in the slot. The utility model divides the core column into a connecting shaft and a ball shaft, so that the connecting shaft part of the torsion rubber core can be replaced, thereby adapting to different situations. For example, when a two-hole connecting shaft is required, the original one-hole connecting shaft can be replaced.

[0010] Preferably, the fixing mechanism includes a fixing bolt, the fixing bolt passes through the connecting shaft and the plug block, and the fixing bolt is threadedly connected to the ball shaft. The utility model can press the connecting shaft and the plug hole onto the ball shaft by passing the fixing bolt through the connecting shaft and the plug hole and threading them to the ball shaft, thereby fixing the connecting shaft and the plug hole.

[0011] Preferably, the slot is a square slot. The utility model sets the slot as a square slot, so that the connecting shaft and the ball shaft will not rotate relative to each other, and at the same time, the force bearing area of ​​the connecting shaft when subjected to torque is increased to improve the strength.

[0012] 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.

[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 on the outer side of the inner sleeve. The utility model can further enhance the strength of the outer shell by utilizing the outer sleeve.

[0015] In summary, the beneficial effects of the utility model are:

[0016] 1. The oil seal can prevent the loss of lubricating oil and the entry of impurities between the core shaft and the shell from causing wear, thereby increasing the life of the torque rubber core.

[0017] 2. The deformation part with a broken line cross section can provide conditions for the swing of the core shaft, thereby achieving a good sealing effect without affecting the swing of the core shaft, and also achieving a spring-like effect, providing a certain buffering effect.

[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 the main figure marks: 1. outer shell; 2. core shaft; 3. oil seal; 4. connecting ring; 5. deformation part; 6. sleeve; 7. sealing groove; 8. gasket; 9 connecting shaft; 10. ball shaft; 11. insert block; 12. fixing bolt; 13. inner sleeve; 14. ball bowl; 15. oil tank; 16. outer sleeve. 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 1-2 As shown, a torsion rubber core with an elastic oil seal includes a shell 1 and a core shaft 2. Oil seals 3 are arranged at both ends of the shell 1. The oil seals 3 are elastic. The oil seals 3 include a connecting ring 4, a deformation portion 5 and a sleeve 6. The connecting ring 4 and the sleeve 6 are connected into one body through the deformation portion 5. The connecting ring 4 is connected to the shell, and the sleeve 6 is sleeved on the core shaft 2. The cross section of the deformation portion 5 is a broken line shape.

[0032] By adopting the above technical scheme, the oil seals 3 at both ends of the shell 1 can avoid wear between the core shaft 2 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. The oil seal 3 achieves sealing with the core shaft 2 through the sleeve 6 tightly attached to the core shaft 2. The oil seal 3 is connected to the shell 1 through the connecting ring 4. The sleeve 6 and the connecting ring 4 are connected through the deformation part 5. The cross-section of the deformation part 5 is in a broken line shape. When the core shaft 2 swings, it can swing by utilizing the deformation ability of the deformation part 5. At the same time, the deformation part 5 with a broken line cross-section can also form a spring-like effect, providing a certain buffering capacity.

[0033] A sealing groove 7 is provided on the core shaft 2, and the sleeve 6 is embedded in the sealing groove 7. The sealing groove 7 is used to make the gap between the sleeve 6 and the core shaft 2 tortuous, further enhancing the sealing effect.

[0034] A gasket 8 is provided between the oil seal 3 and the housing 1. The gasket 8 can be used to raise the position of the oil seal 3 so that the oil seal 3 can be sleeved on the cylindrical part of the core shaft 2, ensuring the movable space of the spherical part of the core shaft 2.

[0035] The core column includes a connecting shaft 9 and a ball shaft 10. The ball shaft 10 is provided with a slot. An insert block 11 is fixedly connected to the bottom of the connecting shaft 9. The insert hole is inserted into the slot. The connecting shaft 9 is provided with a fixing mechanism for fixing the insert block 11 in the slot. By dividing the core column into the connecting shaft 9 and the ball shaft 10, the connecting shaft 9 of the torsion rubber core can be replaced to adapt to different situations. For example, when a two-hole connecting shaft 9 is required, the original one-hole connecting shaft 9 can be replaced.

[0036] The fixing mechanism includes a fixing bolt 12, which passes through the connecting shaft 9 and the plug block 11, and is threadedly connected to the ball shaft 10. By passing the fixing bolt 12 through the connecting shaft 9 and the plug hole and being threadedly connected to the ball shaft 10, the connecting shaft 9 and the plug hole can be pressed onto the ball shaft 10, thereby achieving the fixing of the connecting shaft 9 and the plug hole.

[0037] The slot is a square slot. By setting the slot as a square slot, the connecting shaft 9 and the ball shaft 10 can be prevented from rotating relative to each other, and the force bearing area of ​​the connecting shaft 9 when subjected to torque is increased to improve the strength.

[0038] The outer shell 1 includes an inner sleeve 13 and two ball bowls 14. The two ball bowls 14 are wrapped around the outer side of the core shaft 2. The core shaft 2 is slidably connected to the two ball bowls 14. The inner sleeve 13 is sleeved on the outer side of the two ball bowls 14. By dividing the outer shell 1 into the inner sleeve 13 and the two ball bowls 14, the two ball bowls 14 can be wrapped around the outer side of the core shaft 2 during assembly. The inner sleeve 13 is sleeved on the two ball bowls 14 so that they will not separate, thereby achieving assembly between the outer shell 1 and the core shaft 2.

[0039] Two cross-shaped oil grooves 15 are provided inside the bowl 14. The two cross-shaped oil grooves 15 can store lubricating oil so that the lubricating oil can be continuously applied to the mandrel 2. The cross-shaped arrangement makes the direction of the oil grooves 15 perpendicular to the movement direction of the mandrel 2, thereby increasing the application area.

[0040] An outer sleeve 16 is provided outside the inner sleeve 13. The outer sleeve 16 can further enhance 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 an elastic oil seal, comprising a housing (1) and a core shaft (2), characterized in that: Oil seals (3) are provided at both ends of the outer shell (1); the oil seals (3) are elastic and comprise a connecting ring (4), a deformation portion (5) and a sleeve (6); the connecting ring (4) and the sleeve (6) are connected to form a whole through the deformation portion (5); the connecting ring (4) is connected to the outer shell (1); the sleeve (6) is sleeved on the core shaft (2); and the cross section of the deformation portion (5) is in the shape of a broken line.

2. The torsion rubber core with elastic oil seal according to claim 1, characterized in that: The core shaft (2) is provided with a sealing groove (7), and the sleeve (6) is embedded in the sealing groove (7).

3. The torsion rubber core with elastic oil seal according to claim 1, characterized in that: A gasket (8) is provided between the oil seal (3) and the housing (1).

4. The torsion rubber core with elastic oil seal according to claim 1, characterized in that: The core shaft (2) comprises a connecting shaft (9) and a ball shaft (10); the ball shaft (10) is provided with a slot; an insert block (11) is fixedly connected to the bottom of the connecting shaft (9); the insert block (11) is inserted into the slot; and the connecting shaft (9) is provided with a fixing mechanism for fixing the insert block (11) in the slot.

5. The torsion rubber core with elastic oil seal according to claim 4, characterized in that: The fixing mechanism comprises a fixing bolt (12), the fixing bolt (12) passes through the connecting shaft (9) and the insert block (11), and the fixing bolt (12) is threadedly connected to the ball shaft (10).

6. The torsion rubber core with elastic oil seal according to claim 4, characterized in that: The slot is a square slot.

7. The torsion rubber core with elastic oil seal according to claim 1, characterized in that: The outer shell (1) comprises an inner sleeve (13) and two ball bowls (14), wherein the two ball bowls (14) are wrapped around the outside of the core shaft (2), and the core shaft (2) is slidably connected to the two ball bowls (14), and the inner sleeve (13) is sleeved on the outside of the two ball bowls (14).

8. The torsion rubber core with elastic oil seal according to claim 7, characterized in that: Two cross-shaped oil grooves (15) are arranged inside the ball bowl (14).

9. The torsion rubber core with elastic oil seal according to claim 7, characterized in that: The outer side of the inner sleeve (13) is provided with an outer sleeve (16).

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