CN216717782U - High-efficient marine gear box axle head seal structure durability aassessment test device - Google Patents
High-efficient marine gear box axle head seal structure durability aassessment test device Download PDFInfo
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- CN216717782U CN216717782U CN202122753283.5U CN202122753283U CN216717782U CN 216717782 U CN216717782 U CN 216717782U CN 202122753283 U CN202122753283 U CN 202122753283U CN 216717782 U CN216717782 U CN 216717782U
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Abstract
The utility model provides a durability evaluation test device for a shaft end sealing structure of a high-efficiency marine gearbox, which comprises a dragging motor, a coupler, a speed regulating gearbox and at least two testers, wherein each tester rotates together, and each tester comprises a tester shell, a transmission shaft, a simulation shaft, an adjusting seat and a sealing element; the testing device is characterized in that the dragging motor drives the speed regulating gear box to rotate through the coupler, the speed regulating gear box drives the transmission shaft of the tester, the simulation shaft is fixedly mounted on the transmission shaft, the adjusting seat is mounted on the shell of the tester, the sealing element is mounted between the adjusting seat and the simulation shaft, and the adjusting seat, the sealing element and the simulation shaft can be detached. The device can simultaneously obtain a plurality of life data samples of the marine gearbox shaft end sealing test piece with different structural forms in a test period, and obviously shortens the period of a related durability evaluation test and the confidence coefficient of an evaluation result.
Description
Technical Field
The utility model relates to the technical field of durability evaluation of gear transmission devices, in particular to a durability evaluation test device for a shaft end sealing structure of a high-efficiency marine gearbox.
Background
During the running process of a real ship, the leakage of lubricating oil at the sealing position of the shaft end is one of the most common failure phenomena of the gearbox for the ship. When the leakage is serious, the leakage not only can affect the safe passing of the crew in the engine room, but also can cause fire to endanger the safe sailing of the ship. In addition, the marine gearbox shaft end sealing element must be unpacked and replaced after failing, and the marine gearbox shaft end sealing element is usually developed by combining with planned maintenance work (the replacement period is as long as several years), otherwise the sailing rate of a ship is seriously influenced. Therefore, the marine gearbox shaft end sealing structure has the characteristics of good sealing effect, long service life and the like.
The service life of the shaft end sealing structure of the marine gearbox is generally influenced by various factors such as an element structure, application materials, processing quality, assembly precision and an operation environment, is difficult to accurately evaluate through theoretical analysis, and must be checked through a multi-sample durability test.
Because the durability test of the marine gearbox shaft end sealing structure has long period and many samples, and no durability test device which has a simple structure and can simultaneously carry out various structural forms and many samples is available at home. Therefore, at present, single-piece durability test data are mostly adopted as the basis for the service life evaluation of the shaft end sealing structure of the marine gearbox, and the confidence of the evaluation result is not high.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is as follows: the durability evaluation test device for the shaft end sealing structure of the high-efficiency marine gearbox is provided, and the high efficiency means that a plurality of service life data samples of shaft end sealing test pieces of marine gearboxes with different structural forms can be obtained simultaneously in one test period when the durability test is carried out by using the test device.
The purpose of the utility model is realized by the following steps:
a durability evaluation test device for a shaft end sealing structure of a high-efficiency marine gearbox comprises a dragging motor, a coupler, a speed regulating gearbox and testers, wherein the number of the testers is at least two, each tester rotates together, and each tester comprises a tester shell, a transmission shaft, a simulation shaft, an adjusting seat and a sealing element; the testing device is characterized in that the dragging motor drives the speed regulating gear box to rotate through the coupler, the speed regulating gear box drives the transmission shaft of the tester, the simulation shaft is fixedly mounted on the transmission shaft, the adjusting seat is mounted on the shell of the tester, the sealing element is mounted between the adjusting seat and the simulation shaft, and the adjusting seat, the sealing element and the simulation shaft can be detached.
The upper end of the tester shell is provided with a ventilating screw plug and an oil inlet pipe joint, and the lower end of the tester shell is provided with an oil drainage collecting pipe joint and an oil return pipe joint;
The drive shaft is supported by angular contact ball bearings used in pairs.
Compared with the prior art, the utility model has the beneficial effects that:
the durability evaluation test device for the shaft end sealing structure of the high-efficiency marine gearbox, provided by the utility model, can be used for simultaneously obtaining a plurality of life data samples of shaft end sealing test pieces of marine gearboxes in different structural forms in a test period, so that the period of a related durability evaluation test and the confidence degree of an evaluation result are obviously shortened.
Drawings
FIG. 1 is a schematic structural view of a high-efficiency marine gearbox shaft end sealing structure durability evaluation test device provided by an embodiment of the utility model
FIG. 2 is a structural diagram of a shaft end seal tester in a high-efficiency marine gearbox shaft end seal structure durability evaluation test device provided by an embodiment of the utility model
In the figure: 1-a dragging motor; 2-a first coupling; 3-speed regulating gear box; 4-a second coupling; 5-a first tester; 6-a second tester; 7-a transmission shaft; 8-angular contact ball bearings; 9-tester housing; 10-a simulation axis; 11-an adjusting seat; 12-a seal; 13-vent plug screw; 14-an oil inlet pipe joint; 15-oil return pipe joint; 16-oil drainage collecting pipe joint.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.
Referring to fig. 1 and fig. 2, the durability evaluation test device for the shaft end sealing structure of the high-efficiency marine gearbox provided by the embodiment of the utility model comprises a dragging motor 1, a first coupler 2, a speed regulating gearbox 3, a second coupler 4, a first tester 5 and a second tester 6, wherein the first tester 5 and the second tester 6 comprise a transmission shaft 7, an angular contact ball bearing 8, a tester shell 9, a simulation shaft 10, an adjusting seat 11, a sealing element 12, a ventilation screw plug 13, an oil inlet pipe joint 14, an oil return pipe joint 15 and an oil drain collecting pipe joint 16, the dragging motor 1 drives the speed regulating gearbox 3 to rotate through the first coupler 2, the speed regulating gearbox 3 drives the transmission shaft 7 of the first tester 5 and the second tester 6, the simulation shaft 10 is fixedly installed on the transmission shaft 7, the adjusting seat 11 is installed on the tester shell 9, the sealing element 12 is installed between the adjusting seat 11 and the simulation shaft 10, the adjusting seat 11, the sealing element 12 and the simulation shaft 10 are detachable, and the first tester 5 and the second tester 6 realize the change of different shaft end sealing structures by replacing the simulation shaft 10, the adjusting seat 11 and the sealing element 12.
The durability evaluation test device for the shaft end sealing structure of the high-efficiency marine gearbox, provided by the embodiment of the utility model, is dragged by the dragging motor 1, the speed regulating gearbox 3 is driven to rotate by the first coupler 2, the speed regulating gearbox 3 obtains a plurality of different rotating speeds through speed regulation, the speed regulating gearbox 3 drives the transmission shafts 7 of the first tester 5 and the second tester 6 by the second coupler 4 connected with the shaft end, the transmission shafts 7 have better axis stability under the support of the angular contact ball bearings 8 used in pairs, the axial positions of the transmission shafts and the simulation shafts can be well fixed under the action of the pre-tightening force because the angular contact ball bearings 8 can not generate axis position change, and the simulation shafts 10 are fixedly arranged on the transmission shafts 7 to rotate together. The sealing element 12 is arranged on the tester shell 9, the lubricating oil is injected at the position of the tester oil inlet pipe joint 14 in an oil immersion or oil spraying mode, and the ventilation screw plug 13 can be adjusted according to requirements so as to adjust the lubricating oil in the oil supply cavity. An oil return pipe joint 15 is arranged below the oil filling cavity and can be sealed under the condition that oil return is not needed. On the other side of the seal 12, a drain collection nipple 16 is provided for collecting the leaked lubricant. The shaft end sealing structure tester can change different shaft end sealing structures by replacing the simulation shaft 10, the adjusting seat 11 and the sealing element 12. The test device is provided with a plurality of shaft end sealing structure testers respectively under the working conditions of one shaft neck and rotating speed, and the testers are connected and rotate through a coupler. And performing multi-form and multi-sample durability tests for evaluation.
Therefore, the durability evaluation test device for the shaft end sealing structure of the high-efficiency marine gearbox, provided by the utility model, can simultaneously obtain a plurality of life data samples of shaft end sealing test pieces of marine gearboxes with different structural forms in a test period, and obviously shortens the period of a related durability evaluation test and the confidence coefficient of an evaluation result.
The particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The present invention is capable of other embodiments, and various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the utility model.
Claims (3)
1. A durability evaluation test device for a shaft end sealing structure of a high-efficiency marine gearbox is characterized by comprising a dragging motor, a coupler, a speed regulating gearbox and at least two testers, wherein each tester rotates together, and each tester comprises a tester shell, a transmission shaft, a simulation shaft, an adjusting seat and a sealing element; the testing device is characterized in that the dragging motor drives the speed regulating gear box to rotate through the coupler, the speed regulating gear box drives the transmission shaft of the tester, the simulation shaft is fixedly mounted on the transmission shaft, the adjusting seat is mounted on the shell of the tester, the sealing element is mounted between the adjusting seat and the simulation shaft, and the adjusting seat, the sealing element and the simulation shaft can be detached.
2. The durability evaluation test device for the shaft end sealing structure of the high-efficiency marine gearbox according to claim 1, is characterized in that a ventilating screw plug and an oil inlet pipe joint are arranged at the upper end of the tester shell, and an oil drain collecting pipe joint and an oil return pipe joint are arranged at the lower end of the tester shell.
3. The durability evaluation test device for the shaft end sealing structure of the high-efficiency marine gearbox according to claim 1, wherein the transmission shaft is supported by angular contact ball bearings used in pairs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122753283.5U CN216717782U (en) | 2021-11-11 | 2021-11-11 | High-efficient marine gear box axle head seal structure durability aassessment test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122753283.5U CN216717782U (en) | 2021-11-11 | 2021-11-11 | High-efficient marine gear box axle head seal structure durability aassessment test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216717782U true CN216717782U (en) | 2022-06-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122753283.5U Active CN216717782U (en) | 2021-11-11 | 2021-11-11 | High-efficient marine gear box axle head seal structure durability aassessment test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216717782U (en) |
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2021
- 2021-11-11 CN CN202122753283.5U patent/CN216717782U/en active Active
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