Shafting sealing structure of coupler oil inlet structure and coupler oil inlet structure

Abstract

The utility model discloses a shaft system sealing structure of a coupler oil inlet structure and the coupler oil inlet structure. The shaft system sealing structure comprises an upper shell and a lower shell. Wherein the upper shell and the lower shell are semi-arc shells, the upper shell and the lower shell are in butt joint to form a main body of a sealing structure, the upper shell and the lower shell are provided with an oil inlet cavity and an oil outlet cavity respectively, the oil inlet cavity of the upper shell is communicated with the oil inlet pipeline, and the oil outlet cavity of the lower shell is communicated with the oil outlet pipeline. The main shaft is nested in a circular through hole formed by the upper shell and the lower shell, a main shaft inner oil inlet channel and a main shaft inner oil outlet channel are arranged on the main shaft, the main shaft inner oil inlet channel is communicated with the oil inlet cavity, and the main shaft inner oil outlet channel is communicated with the oil outlet cavity. The upper shell and the lower shell are provided with sealing ring loops and wear-resistant ring loops, the sealing ring loops and the wear-resistant ring loops are arranged at intervals, and the sealing rings and the wear-resistant rings are arranged on the sealing ring loops and the wear-resistant ring loops respectively. The utility model solves the problem that the main shaft cannot be sealed through the shaft seal when the space is limited.

Description

Technical Field

[0001] The utility model belongs to the technical field of low-speed machine couplings, and in particular relates to a shaft system sealing structure and a coupling oil inlet structure of a low-speed machine oil inlet structure provided with a large elastic coupling. Background Art

[0002] At present, the sealing mechanism of the low-speed engine shaft oil inlet system is generally sealed by means of shaft seals, shaft covers, etc. This method has certain requirements for the installation space of the sealing structure. For the low-speed engine shaft oil inlet system with limited space and flanges at both ends of the shaft system, the use of the above method to install the sealing mechanism will result in a large leakage and cannot produce a good sealing effect. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a shaft system sealing structure of a coupling oil inlet structure and a coupling oil inlet structure, which realizes good sealing of the shaft system oil inlet structure in the limited space where flanges exist at both ends of the shaft system.

[0004] The purpose of the utility model is achieved through the following technical solutions, a shaft system sealing structure of a coupling oil inlet structure, comprising:

[0005] Upper shell and lower shell.

[0006] Among them, the upper shell and the lower shell are semicircular arc shells, and the upper shell and the lower shell are connected to form the main body of the sealing structure. The upper shell and the lower shell are respectively provided with an oil inlet chamber and an oil outlet chamber. The oil inlet chamber of the upper shell is connected to the oil inlet pipeline, and the oil outlet chamber of the lower shell is connected to the oil outlet pipeline.

[0007] The main shaft is nested in the circular through hole formed by the upper shell and the lower shell. The main shaft is provided with an inner main shaft oil inlet channel and an inner main shaft oil outlet channel. The inner main shaft oil inlet channel is connected with the oil inlet cavity, and the inner main shaft oil outlet channel is connected with the oil outlet cavity.

[0008] A sealing ring loop and a wear-resistant ring loop are arranged on the upper shell and the lower shell. The sealing ring loop and the wear-resistant ring loop are arranged at intervals. The sealing ring and the wear-resistant ring are arranged on the sealing ring loop and the wear-resistant ring loop respectively.

[0009] Preferably, an oil inlet hole is provided in the upper shell body corresponding to the oil inlet chamber position, and an oil outlet hole is provided in the lower shell body corresponding to the oil outlet chamber position, and the oil inlet hole and the oil outlet hole are respectively connected to the oil inlet pipeline and the oil outlet pipeline.

[0010] Preferably, an oil-slinging chamber is provided on one side of the oil inlet chamber and the oil outlet chamber respectively, and two oil-slinging rings are provided at the bottom of the lower shell body, which are respectively connected to the two oil-slinging chambers, and an oil drain hole is opened below the oil drain ring, which is connected to the oil return pipeline through the oil drain pipeline.

[0011] Preferably, an oil inlet pipeline oil pressure sensor and an oil outlet pipeline oil pressure sensor are respectively provided on the oil inlet pipeline and the oil outlet pipeline.

[0012] Preferably, an oil inlet chamber pressure gauge connection point and an oil outlet chamber pressure gauge connection point are provided on the upper shell.

[0013] Preferably, upper shell body lifting holes and lower shell body lifting holes are respectively opened on the surfaces of the upper shell body and the lower shell body.

[0014] Preferably, the upper shell and the lower shell are detachably connected.

[0015] Preferably, the upper shell and the lower shell are connected and supported by a bracket.

[0016] Preferably, the wear-resistant ring is arranged between the sealing structure and the main shaft.

[0017] In addition to providing a shaft system sealing structure of a coupling oil inlet structure, the utility model further provides a coupling oil inlet structure adopting the sealing structure.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] The utility model provides a shaft system sealing structure and a coupling oil inlet structure of a coupling, which can meet the sealing requirements of an oil inlet mechanism of a large coupling requiring oil supply, especially for situations where the main shaft space is limited and sealing cannot be achieved by means of shaft seals, etc., and has a good sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an overall schematic diagram of the shaft sealing mechanism of the large coupling oil inlet mechanism in the embodiment of the utility model;

[0021] Figure 2 It is a cross-sectional view of the shaft sealing mechanism of the large coupling oil inlet mechanism in the embodiment of the utility model;

[0022] Figure 3 It is a schematic diagram of the connection relationship between the main shaft and the sealing structure in the embodiment of the utility model.

[0023] In the figure, 1 is the oil inlet pipeline; 2 is the oil pressure sensor for the oil inlet pipeline; 3 is the connection point of the oil inlet chamber pressure gauge; 4 is the connection point of the oil outlet chamber pressure gauge; 5 is the upper shell; 6 is the lower shell; 7 is the oil drain pipeline; 8 is the oil outlet pipeline; 9 is the oil outlet pipeline oil pressure sensor; 10 is the bracket; 11 is the upper shell hanging hole; 12 is the lower shell hanging hole; 13 is the sealing ring loop; 14 is the wear-resistant ring loop; 15 is the oil throwing chamber; 16 is the oil outlet chamber; 17 is the oil inlet chamber; 18 is the oil throwing ring; 19 is the oil inlet hole; 20 is the oil drain hole; 21 is the oil outlet hole; 22 is the main shaft; 23 is the oil inlet channel in the main shaft; 24 is the oil outlet channel in the main shaft. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0025] like Figure 1 to Figure 2 As shown, the technical solution of the utility model provides a shaft system sealing structure of a coupling oil inlet structure, and the sealing structure includes:

[0026] An upper shell 5 and a lower shell 6;

[0027] The upper shell 5 and the lower shell 6 are semicircular shells, and the upper shell 5 and the lower shell 6 are connected to form the main body of the sealing structure. The upper shell 5 and the lower shell 6 are respectively provided with an oil inlet chamber 17 and an oil outlet chamber 16. The oil inlet chamber 17 of the upper shell 5 is connected to the oil inlet pipeline 1, and the oil outlet chamber 16 of the lower shell 6 is connected to the oil outlet pipeline 8.

[0028] like Figure 3 As shown, the spindle 22 is nested in the circular through hole formed by the upper housing 5 and the lower housing 6, and the spindle 22 is provided with a spindle inner oil inlet channel 23 and a spindle inner oil outlet channel 24, wherein the spindle inner oil inlet channel 23 is communicated with the oil inlet chamber 17, and the spindle inner oil outlet channel 24 is communicated with the oil outlet chamber 16;

[0029] A sealing ring loop 13 and a wear-resistant ring loop 14 are provided on the upper shell 5 and the lower shell 6. The sealing ring loop 13 and the wear-resistant ring loop 14 are arranged at intervals, and the sealing ring and the wear-resistant ring are arranged on the sealing ring loop 13 and the wear-resistant ring loop 14 respectively.

[0030] In one embodiment of the utility model, the upper shell 5 is provided with an oil inlet hole 19 at the position corresponding to the oil inlet chamber 17, and the lower shell 6 is provided with an oil outlet hole 21 at the position corresponding to the oil outlet chamber 16. The oil inlet hole 20 and the oil outlet hole 21 are respectively connected to the oil inlet pipeline 1 and the oil outlet pipeline 8.

[0031] like Figure 2 As shown, in one embodiment of the utility model, a sealing structure is provided, in which an oil-slinging chamber 15 is respectively provided on one side of the oil inlet chamber 17 and the oil outlet chamber 16, and two oil-slinging rings 18 are provided at the bottom of the lower shell 6, which are respectively connected to the two oil-slinging chambers 15, and an oil drain hole 19 is opened below the oil-slinging ring 18, and the oil drain hole 19 is connected to the oil return pipeline 8 through the oil drain pipeline 7. In this embodiment, the oil-slinging chamber 15 is used to achieve no oil leakage outside the sealing structure, and the oil is collected in the oil outlet pipeline 8 through the corresponding oil drain hole 19 and the oil drain pipeline 7 to realize a closed loop.

[0032] like Figure 1 As shown, as a further optimization of the above embodiment, an oil inlet pipeline oil pressure sensor 2 and an oil outlet pipeline oil pressure sensor 9 are respectively provided on the oil inlet pipeline 1 and the oil outlet pipeline 8, and an oil inlet chamber pressure gauge connection point 3 and an oil outlet chamber pressure gauge connection point 4 are opened on the upper shell 5.

[0033] like Figure 1 As shown, as a further optimization of the above embodiment, upper shell 5 and lower shell 6 are respectively provided with upper shell hoisting holes 11 and lower shell hoisting holes 12 on their surfaces, so as to facilitate the hoisting operation of upper shell 5 and lower shell 6. Upper shell 5 and lower shell 6 are detachably connected, for example, they can be connected and removed by bolts. After being connected, upper shell 5 and lower shell 6 are supported by bracket 10.

[0034] like Figure 2 As shown, the wear ring is arranged between the sealing structure and the main shaft 22. In this embodiment, when the main shaft 22 rotates, the upper shell 5 and the lower shell 6 are fixed and do not rotate with the main shaft 22. The upper shell 5 and the lower shell 6 are separated from the main shaft 22 by the wear ring 14 to avoid direct contact between the shell and the main shaft 22 to generate friction and cause wear of the main shaft 22.

[0035] In one embodiment of the present invention, the shaft sealing mechanism is as follows: Figures 1 to 3 As shown, the shaft sealing mechanism includes a shaft, and the shaft is designed with an oil inlet pipeline 1 and an oil drain pipeline 7. The shaft has a sealing structure on the periphery, including an upper shell 5 and a lower shell 6. The upper and lower shells are respectively designed with an oil inlet hole 19, an oil outlet hole 21, a sealing ring channel 13, a wear-resistant ring channel 14, an oil-throwing chamber 15, an oil inlet chamber 17, an oil outlet chamber 16, and an oil drain hole 20. The oil inlet hole 19 of the upper shell 5 is connected to the oil inlet pipeline 1, and a through hole is drilled at the position of the oil inlet chamber 17 and the oil outlet chamber 16 of the upper shell 5, which can be connected to a pressure The meter observes the oil pressure in the two chambers in real time. The oil outlet hole 21 of the lower shell 6 is connected to the oil outlet pipeline 8. Oil pressure sensors are installed on the oil inlet pipeline 1 and the oil outlet pipeline 8 to monitor the oil pressure in the pipeline in real time. The upper and lower shells are designed with corresponding lifting holes to facilitate on-site lifting. The sealing structure is supported by the bracket 10, and multiple split sealing rings, two wear-resistant rings, and two oil-slinging rings 18 are arranged inside. They are respectively arranged below the oil-slinging chamber 15. Oil is introduced through the oil inlet pipeline 1, and oil circulation is realized through the oil drain pipeline 7.

[0036] In this embodiment, the upper shell 5 and the lower shell 6 are connected by bolts and fixed on the bracket 10, so that the upper and lower shells are sleeved on the main shaft 22. The oil fills the oil inlet chamber 17 of the upper and lower shells through the oil inlet pipeline 1, and enters the coupling through the main shaft oil inlet channel 23 of the main shaft 22, and returns to the oil outlet chamber 16 of the upper shell 5 and the lower shell 6 through the main shaft oil return channel 24 to realize oil circulation. A sealing ring loop 13 is designed in the upper shell 5 and the lower shell 6 to install a sealing ring, and a wear-resistant ring loop 14 is designed to install a wear-resistant ring. The oil-slinging chamber 15, the oil outlet chamber 16, and the oil inlet chamber 17 are sealed by installing a sealing ring connected to the sealing ring loop 13. Part of the leaked oil is collected in the oil-slinging chamber 15. The oil-slinging chamber 15 is used to collect the leaked oil, the oil outlet chamber 16 is used to collect the output oil, and the oil inlet chamber 17 is used to store the input oil. The oil-slinging ring 18 is installed at the bottom of the oil-slinging chamber 15 to prevent the leaked oil from accumulating in the oil-slinging chamber 15, so that it can be further recovered to the oil drain pipeline through the oil drain hole 20 on the lower shell 6.

[0037] In this embodiment, the oil-slinging chamber 15 is designed to prevent oil leakage from the outside of the structure, and the oil is collected through the corresponding oil drain holes 20 and the oil drain pipeline 7 to form a closed loop in the oil outlet pipeline 8. When the main shaft 22 rotates, the upper shell 5 and the lower shell 6 are fixed and do not rotate with the main shaft 22. The upper shell 5 and the lower shell 6 are separated from the main shaft 22 by the wear-resistant ring 14 to avoid direct contact between the shell and the main shaft 22 to generate friction and cause wear of the main shaft 22.

[0038] In addition to providing a shaft system sealing structure of a coupling oil inlet structure, the technical solution of the utility model further provides a coupling oil inlet structure adopting the above sealing structure.

[0039] The above are preferred implementations of the present utility model. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present utility model. These improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A shaft sealing structure of a coupling oil inlet structure, characterized in that: The sealing structure comprises: An upper shell (5) and a lower shell (6); The upper shell (5) and the lower shell (6) are semicircular shells, the upper shell (5) and the lower shell (6) are butt-jointed to form the main body of the sealing structure, the upper shell (5) and the lower shell (6) are respectively provided with an oil inlet chamber (17) and an oil outlet chamber (16), the oil inlet chamber (17) of the upper shell (5) is communicated with an oil inlet pipeline (1), and the oil outlet chamber (16) of the lower shell (6) is communicated with an oil outlet pipeline (8); The main shaft (22) is nested in a circular through hole formed by the upper housing (5) and the lower housing (6); the main shaft (22) is provided with a main shaft inner oil inlet passage (23) and a main shaft inner oil outlet passage (24); wherein the main shaft inner oil inlet passage (23) is communicated with the oil inlet chamber (17), and the main shaft inner oil outlet passage (24) is communicated with the oil outlet chamber (16); A sealing ring loop (13) and a wear-resistant ring loop (14) are provided on the upper shell (5) and the lower shell (6); the sealing ring loop (13) and the wear-resistant ring loop (14) are arranged at intervals, and the sealing ring and the wear-resistant ring are respectively arranged on the sealing ring loop (13) and the wear-resistant ring loop (14).

2. A shaft system sealing structure of a coupling oil inlet structure as claimed in claim 1, characterized in that: The upper shell (5) is provided with an oil inlet hole (19) at a position corresponding to the oil inlet chamber (17), and the lower shell (6) is provided with an oil outlet hole (21) at a position corresponding to the oil outlet chamber (16). The oil inlet hole (19) and the oil outlet hole (21) are respectively connected to the oil inlet pipeline (1) and the oil outlet pipeline (8).

3. A shaft system sealing structure of a coupling oil inlet structure as claimed in claim 2, characterized in that: An oil slinging chamber (15) is respectively arranged on one side of the oil inlet chamber (17) and the oil outlet chamber (16); two oil slinging rings (18) are arranged at the bottom of the lower housing (6) and are respectively connected to the two oil slinging chambers (15); an oil drain hole (20) is opened below the oil slinging ring (18); the oil drain hole (20) is connected to the oil outlet pipeline (8) through an oil drain pipeline (7).

4. The shaft system sealing structure of the coupling oil inlet structure according to claim 1, characterized in that: The oil inlet pipeline (1) and the oil outlet pipeline (8) are respectively provided with an oil inlet pipeline oil pressure sensor (2) and an oil outlet pipeline oil pressure sensor (9).

5. The shaft system sealing structure of the coupling oil inlet structure according to claim 1, characterized in that: The upper shell (5) is provided with an oil inlet pressure gauge connection point (3) and an oil outlet pressure gauge connection point (4).

6. The shaft system sealing structure of the coupling oil inlet structure according to claim 1, characterized in that: An upper shell hoisting hole (11) and a lower shell hoisting hole (12) are respectively provided on the surfaces of the upper shell (5) and the lower shell (6).

7. The shaft system sealing structure of the coupling oil inlet structure according to claim 1, characterized in that: The upper shell (5) and the lower shell (6) are detachably connected.

8. The shaft system sealing structure of the coupling oil inlet structure according to claim 1, characterized in that: The upper shell (5) and the lower shell (6) are connected and supported by a bracket (10).

9. The shaft system sealing structure of the coupling oil inlet structure according to claim 1, characterized in that: The wear-resistant ring is arranged between the sealing structure and the main shaft (22).

10. A coupling oil inlet structure, provided with a sealing structure, characterized in that: The coupling oil inlet structure is provided with the shaft system sealing structure according to any one of claims 1-9.

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