Oil inlet mechanism for universal shaft

Abstract

The utility model discloses an oil inlet mechanism for a cardan shaft, which comprises a cardan shaft body, a connecting shaft and an oil inlet hole, and the outer side of the cardan shaft body and the inner side of the connecting shaft are movably mounted. According to the universal shaft oil inlet mechanism, the oil inlet adjusting assembly is arranged to be matched with the movable sealing assembly to conduct stable movable sealing on the interior of the oil inlet hole, and the problems that when an existing universal shaft oil inlet mechanism is used, oil is fed into a universal shaft through the oil inlet hole, and after oil is fed into the universal shaft, the oil inlet hole cannot be sealed are solved. A sealing structure needs to be used for sealing an oil inlet hole to a certain degree, however, due to the fact that the sealing performance of the sealing structure is not good, the situation that oil in a cardan shaft leaks out and spills is prone to occurring, due to the spilled and leaked oil, the surface of the cardan shaft is smooth, a user cannot move the cardan shaft conveniently, and use inconvenience is caused. Therefore, the universal shaft oil inlet mechanism is poor in sealing effect in use, and the use effect of the oil inlet mechanism is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of oil inlet mechanisms, in particular to an oil inlet mechanism for a universal shaft. Background Art

[0002] The universal coupling uses the characteristics of its mechanism to make the two shafts not on the same axis. When there is an angle between the axes, the two connected shafts can rotate continuously and reliably transmit torque and motion. The biggest feature of the universal coupling is that its structure has a large angular compensation ability, compact structure, high transmission efficiency, and different structural types of universal couplings have different angles between the two axes. Sliding bearings are generally used in high-load-bearing environments. High-load-bearing parts require more lubrication, otherwise they are prone to locking, so oil grooves and oil holes are generally used for lubrication.

[0003] The existing universal joint oil inlet mechanism is in use, and oil is supplied to the universal joint through the oil inlet hole. After the oil is supplied to the universal joint, a sealing structure is required to seal the oil inlet hole to a certain extent. However, since the sealing performance of the sealing structure is not very good, it is easy to cause the oil in the universal joint to leak and spill. The leaked oil will make the surface of the universal joint smoother, which is not convenient for the user to move the universal joint, causing inconvenience in use. Therefore, the sealing effect of the universal joint oil inlet mechanism is poor during use, which reduces the use effect of the oil inlet mechanism. Utility Model Content

[0004] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide an oil inlet mechanism for a universal shaft, which has the advantage of mobile sealing, and solves the problem that the existing universal shaft oil inlet mechanism, during use, supplies oil to the universal shaft through the oil inlet hole, and after the oil is supplied to the universal shaft, a sealing structure is required to seal the oil inlet hole to a certain extent, but since the sealing performance of the sealing structure is not very good, it is often easy to cause the oil in the universal shaft to leak and spill, and the spilled oil will make the surface of the universal shaft relatively smooth, which is not convenient for the user to move the universal shaft, causing inconvenience in use. Therefore, the sealing effect of the universal shaft oil inlet mechanism is poor during use, which reduces the use effect of the oil inlet mechanism.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an oil inlet mechanism for a universal shaft, comprising a universal shaft body, a connecting shaft and an oil inlet hole, the outer side of the universal shaft body and the inner side of the connecting shaft being movably mounted, the oil inlet hole being opened on the right side of the top of the universal shaft body, the top of the oil inlet hole being threadedly connected with an adjusting oil inlet assembly, and a movable sealing assembly being arranged inside the oil inlet hole.

[0006] As a preferred embodiment of the utility model, the oil inlet regulating assembly includes a movable ring, a connecting groove is opened on the outer side of the inner wall of the oil inlet hole, a plurality of the connecting grooves are provided, and the plurality of connecting grooves are arranged at equal distances, a movable block is movably connected inside the connecting groove, a connecting ring is fixedly connected to the inner side of the movable block, and the connecting ring is located at the bottom of the movable ring.

[0007] As a preferred embodiment of the utility model, the movable sealing assembly includes a sealing ring, the top of the sealing ring is fixedly connected to the bottom of the connecting ring, the top of the movable block is fixedly connected to a sealing block, the top of the movable block is fixedly connected to a positioning block, a positioning groove is provided at the top of the inner wall of the connecting groove, and the surface of the positioning block is movably connected to the inside of the positioning groove.

[0008] As a preferred embodiment of the utility model, an oil leakage hole is opened on the outer side of the bottom of the moving block, and a plurality of the oil leakage holes are provided, and the plurality of oil leakage holes are arranged at equal distances.

[0009] As a preferred embodiment of the present invention, a limiting groove is provided on the top of the connecting ring, the limiting groove is movably connected inside with the limiting ring, and the top of the limiting ring is fixedly connected to the bottom of the movable ring.

[0010] As a preferred embodiment of the utility model, a connecting rod is fixedly connected to the top of the movable ring, and an elastic ring is fixedly connected to the top of the movable ring.

[0011] As a preferred embodiment of the utility model, a sealing rod is movably connected inside the oil leakage hole, and the top of the sealing rod is fixedly connected to the top of the inner wall of the connecting groove.

[0012] As a preferred embodiment of the present invention, a protective ring is fixedly connected to the top of the sealing ring surface, and a fixing ring is fixedly connected to the bottom of the protective ring surface.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model provides an adjustable oil inlet assembly in cooperation with a movable sealing assembly to perform stable movable sealing on the inside of the oil inlet hole, thereby solving the problem that the existing universal joint shaft oil inlet mechanism, during use, supplies oil to the universal joint shaft through the oil inlet hole. After the oil is supplied to the universal joint shaft, a sealing structure is required to perform a certain sealing on the oil inlet hole. However, since the sealing performance of the sealing structure is not very good, it is easy to cause the oil in the universal joint shaft to leak out and spill. The leaked oil will make the surface of the universal joint shaft smoother, making it inconvenient for the user to move the universal joint shaft, resulting in inconvenience in use. Therefore, the sealing effect of the universal joint shaft oil inlet mechanism is poor during use, which reduces the use effect of the oil inlet mechanism and achieves the effect of movable sealing.

[0015] 2. The utility model sets an adjustable oil inlet assembly, and the movable ring can be threadedly connected to the inside of the oil inlet hole, which is convenient for the user to seal and move the oil inlet hole through the movable ring, and is convenient for the user to fill the oil through the oil inlet hole. The connecting groove can movably limit the surface of the movable block. After the movable block is movably limited, it can stably drive the outer side of the movable ring to movably limit, thereby enhancing the use stability of the movable ring. At the same time, when filling the oil, the user can stably fill the oil through the oil leakage hole on the movable block.

[0016] 3. The utility model sets a movable sealing assembly, and the sealing ring can seal the bottom of the connecting ring, thereby improving the sealing effect of the connecting ring during use. The sealing block can seal the top of the movable block and can stably seal when no oil is entering. The positioning groove can movably limit the top of the movable block through the positioning block, thereby enhancing the movement stability of the sealing block. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional exploded cross-sectional structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0020] In the figure: 1. universal joint body; 2. connecting shaft; 3. oil inlet hole; 4. oil inlet adjustment assembly; 41. movable ring; 42. connecting groove; 43. moving block; 44. connecting ring; 5. moving sealing assembly; 51. sealing ring; 52. sealing block; 53. positioning block; 54. positioning groove; 6. oil leakage hole; 7. limiting groove; 8. limiting ring; 9. connecting rod; 10. elastic ring; 11. sealing rod; 12. protective ring; 13. fixing ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figures 1 to 3As shown, the utility model provides an oil inlet mechanism for a universal shaft, comprising a universal shaft body 1, a connecting shaft 2 and an oil inlet hole 3, the outer side of the universal shaft body 1 and the inner side of the connecting shaft 2 are movably mounted, the oil inlet hole 3 is opened on the right side of the top of the universal shaft body 1, the top of the oil inlet hole 3 is threadedly connected with an adjusting oil inlet assembly 4, and the inside of the oil inlet hole 3 is provided with a movable sealing assembly 5.

[0023] refer to Figure 3 The oil inlet regulating assembly 4 includes a movable ring 41. A connecting groove 42 is provided on the outer side of the inner wall of the oil inlet hole 3. A plurality of connecting grooves 42 are provided, and the plurality of connecting grooves 42 are arranged at equal distances. A moving block 43 is movably connected inside the connecting groove 42. A connecting ring 44 is fixedly connected to the inner side of the moving block 43. The connecting ring 44 is located at the bottom of the movable ring 41.

[0024] As a technical optimization scheme of the utility model, by setting the adjusting oil inlet assembly 4, the movable ring 41 can be threadedly connected to the inside of the oil inlet hole 3, so that the user can seal and move the oil inlet hole 3 through the movable ring 41, and the user can fill the oil through the oil inlet hole 3. The connecting groove 42 can movably limit the surface of the movable block 43. After the movable block 43 is movably limited, it can stably drive the outer side of the movable ring 41 to be movably limited, thereby enhancing the use stability of the movable ring 41. At the same time, when filling the oil, the user can stably fill the oil through the oil leakage hole 6 on the movable block 43.

[0025] refer to Figure 3 The movable sealing assembly 5 includes a sealing ring 51, the top of the sealing ring 51 is fixedly connected to the bottom of the connecting ring 44, the top of the movable block 43 is fixedly connected to a sealing block 52, the top of the movable block 43 is fixedly connected to a positioning block 53, a positioning groove 54 is opened at the top of the inner wall of the connecting groove 42, and the surface of the positioning block 53 is movably connected to the inside of the positioning groove 54.

[0026] As a technical optimization solution of the utility model, by setting up a movable sealing assembly 5, the sealing ring 51 can seal the bottom of the connecting ring 44, thereby improving the sealing effect of the connecting ring 44 during use. The sealing block 52 can seal the top of the movable block 43 and can stably seal when no oil is entering. The positioning groove 54 can movably limit the top of the movable block 43 through the positioning block 53, thereby enhancing the movement stability of the sealing block 52.

[0027] refer to Figure 3 An oil leakage hole 6 is opened on the outer side of the bottom of the moving block 43, and a plurality of oil leakage holes 6 are provided, and the plurality of oil leakage holes 6 are arranged at equal distances.

[0028] As a technical optimization solution of the utility model, by setting the oil leakage hole 6, the oil in the oil inlet hole 3 can be easily entered into the interior of the universal joint body 1 through the oil leakage hole 6 when the movable ring 41 moves downward, thereby enhancing the stable sealing of the oil inlet of the universal joint body 1.

[0029] refer to Figure 3 A limiting groove 7 is provided at the top of the connecting ring 44 , and a limiting ring 8 is movably connected inside the limiting groove 7 , and the top of the limiting ring 8 is fixedly connected to the bottom of the movable ring 41 .

[0030] As a technical optimization solution of the utility model, by setting the limit groove 7 and the limit ring 8, the limit ring 8 can limit the inside of the connecting ring 44 through the limit groove 7, which can facilitate the user to rotate the movable ring 41 normally, and can also drive the movable block 43 to move during the movement.

[0031] refer to Figure 3 The top of the movable ring 41 is fixedly connected with a connecting rod 9, and the top of the movable ring 41 is fixedly connected with an elastic ring 10.

[0032] As a technical optimization solution of the utility model, by providing a connecting rod 9 and an elastic ring 10, the connecting rod 9 can facilitate the user to rotate the movable ring 41 to supply oil to the inside of the oil inlet hole 3, thereby enhancing the convenience of the movable ring 41 in use. The elastic ring 10 can enhance the sealing effect of the movable ring 41 to avoid oil leakage in the connection between the movable ring 41 and the oil inlet hole 3 during use.

[0033] refer to Figure 3 A sealing rod 11 is movably connected inside the oil leakage hole 6 , and the top of the sealing rod 11 is fixedly connected to the top of the inner wall of the connecting groove 42 .

[0034] As a technical optimization solution of the utility model, by setting a sealing rod 11, the sealing rod 11 can stably seal the inside of the oil leakage hole 6 when the moving block 43 is sealed, thereby enhancing the use effect of the oil leakage hole 6 and avoiding the situation where oil leakage in the universal joint body 1 occurs due to loose sealing.

[0035] refer to Figure 3 The top of the sealing ring 51 is fixedly connected with a protective ring 12 , and the bottom of the protective ring 12 is fixedly connected with a fixing ring 13 .

[0036] As a technical optimization solution of the utility model, by setting a protective ring 12 and a fixed ring 13, the protective ring 12 can limit the surface of the sealing ring 51, improve the stability of the sealing ring 51 during movement, and avoid deformation of the sealing ring 51 during movement, resulting in a situation where sealing cannot be performed. The fixed ring 13 can fix the bottom of the surface of the sealing ring 51, thereby enhancing the sealing service life of the sealing ring 51.

[0037] The working principle and use process of the utility model are as follows: when in use, the movable ring 41 can be threadedly connected to the inside of the oil inlet hole 3, so that the user can seal and move the oil inlet hole 3 through the movable ring 41, and the user can fill oil through the oil inlet hole 3. The connecting groove 42 can limit the surface of the movable block 43. After the movable block 43 is limited, it can stably drive the outer side of the movable ring 41 to limit the movement, thereby enhancing the use stability of the movable ring 41. At the same time, when filling oil, the user can fill oil stably through the oil leakage hole 6 on the movable block 43. The sealing ring 51 can The bottom of the connecting ring 44 can be sealed, thereby improving the sealing effect of the connecting ring 44 during use; the sealing block 52 can seal the top of the movable block 43, and can stably seal when no oil is flowing in; the positioning groove 54 can movably limit the top of the movable block 43 through the positioning block 53, thereby enhancing the movement stability of the sealing block 52; when sealing is required after the oil is flowing in, the movable ring 41 can be rotated through the connecting rod 9 to make the movable ring 41 rotate to seal the inside of the oil inlet hole 3, thereby achieving the effect of mobile sealing and enhancing the use effect of the oil inlet mechanism.

[0038] To sum up: this oil inlet mechanism for a universal joint shaft, by setting an adjustable oil inlet component 4 and cooperating with a movable sealing component 5 to perform stable movable sealing on the inside of the oil inlet hole 3, solves the problem that the existing universal joint shaft oil inlet mechanism, during use, supplies oil to the universal joint shaft through the oil inlet hole, and after the oil is supplied to the universal joint shaft, a sealing structure is required to perform a certain sealing on the oil inlet hole, but since the sealing performance of the sealing structure is not very good, it is often easy to cause the oil in the universal joint shaft to leak and spill, and the leaked oil will make the surface of the universal joint shaft relatively smooth, which is not convenient for the user to move the universal joint, causing inconvenience in use. Therefore, the sealing effect of the universal joint shaft oil inlet mechanism is poor during use, which reduces the use effect of the oil inlet mechanism.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil inlet mechanism for a universal joint shaft, comprising a universal joint shaft body (1), a connecting shaft (2) and an oil inlet hole (3), characterized in that: The outer side of the universal joint body (1) is movably mounted on the inner side of the connecting shaft (2); the oil inlet hole (3) is opened on the right side of the top of the universal joint body (1); the top of the oil inlet hole (3) is threadedly connected to an adjustable oil inlet assembly (4); and a movable sealing assembly (5) is arranged inside the oil inlet hole (3).

2. The oil inlet mechanism for a universal shaft according to claim 1, characterized in that: The oil inlet regulating assembly (4) comprises a movable ring (41), a connecting groove (42) is provided on the outer side of the inner wall of the oil inlet hole (3), a plurality of the connecting grooves (42) are provided, and the plurality of connecting grooves (42) are arranged at equal distances, a movable block (43) is movably connected inside the connecting groove (42), a connecting ring (44) is fixedly connected to the inner side of the movable block (43), and the connecting ring (44) is located at the bottom of the movable ring (41).

3. The oil inlet mechanism for a universal shaft according to claim 2, characterized in that: The movable sealing assembly (5) comprises a sealing ring (51), the top of the sealing ring (51) is fixedly connected to the bottom of the connecting ring (44), the top of the movable block (43) is fixedly connected to a sealing block (52), the top of the movable block (43) is fixedly connected to a positioning block (53), the top of the inner wall of the connecting groove (42) is provided with a positioning groove (54), and the surface of the positioning block (53) is movably connected to the inside of the positioning groove (54).

4. The oil inlet mechanism for a universal shaft according to claim 2, characterized in that: An oil leakage hole (6) is provided on the outer side of the bottom of the moving block (43), and a plurality of the oil leakage holes (6) are provided, and the plurality of oil leakage holes (6) are arranged at equal distances.

5. The oil inlet mechanism for a universal shaft according to claim 2, characterized in that: A limiting groove (7) is provided at the top of the connecting ring (44), and a limiting ring (8) is movably connected inside the limiting groove (7), and the top of the limiting ring (8) is fixedly connected to the bottom of the movable ring (41).

6. The oil inlet mechanism for a universal shaft according to claim 2, characterized in that: The top of the movable ring (41) is fixedly connected to a connecting rod (9), and the top of the movable ring (41) is fixedly connected to an elastic ring (10).

7. The oil supply mechanism for a universal shaft according to claim 4, characterized in that: A sealing rod (11) is movably connected inside the oil leakage hole (6), and the top of the sealing rod (11) is fixedly connected to the top of the inner wall of the connecting groove (42).

8. The oil supply mechanism for a universal shaft according to claim 3, characterized in that: A protective ring (12) is fixedly connected to the top of the surface of the sealing ring (51), and a fixing ring (13) is fixedly connected to the bottom of the protective ring (12).

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