CN219013345U

CN219013345U - Gear box low-speed shaft oil seal structure of chlorine compressor

Info

Publication number: CN219013345U
Application number: CN202223183933.8U
Authority: CN
Inventors: 郑学军; 李学海
Original assignee: Huludao Jinhua Compression Machinery Manufacturing Co ltd
Current assignee: Huludao Jinhua Compression Machinery Manufacturing Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-05-12
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses a low-speed shaft oil seal structure of a gear box of a chlorine compressor, which relates to the technical field of low-speed shaft oil seals of gear boxes of the chlorine compressor and comprises a gear box body, wherein a mounting hole is formed in the gear box body.

Description

Gear box low-speed shaft oil seal structure of chlorine compressor

Technical Field

The utility model relates to the technical field of low-speed shaft oil seals of gear boxes of chlorine compressors, in particular to a low-speed shaft oil seal structure of a gear box of a chlorine compressor.

Background

The axial force generated by the rotation of the high-speed rotor can cause the internal pressure of the gear box to increase and the liquid of the lubricating oil to splash, and the lubricating oil is thrown out along the gap between the box body and the high-speed rotor.

The conventional chlorine compressor has the common problems that the existing shaft oil extending seal adopts a labyrinth seal structure, a group of seal teeth are arranged between a shaft sealer and a high-speed rotor, but the pressure attenuation of the seal teeth is not thorough due to the high-speed rotation of a main shaft, and the position of a low-speed shaft thrust disc is not utilized, so that oil accumulation in the seal teeth causes the lubricating oil to overflow out of a sealer main body, thus oil leakage phenomenon is caused, the low-speed end of the lubricating oil of a gear box leaks, potential safety hazards are generated due to the leakage, and the production cost is increased to different degrees; meanwhile, accumulated oil in the seal teeth can accelerate abrasion of the seal teeth, and the more serious abrasion is, the more oil leakage phenomenon is, and vicious circle is formed.

And also affects the life of the compressor. Speed increaser manufacturers have also performed structural optimization modifications to these problems, such as: the number of teeth of the seal is changed, but the effect is not obvious after improvement, and the cost is greatly increased.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a low-speed shaft oil seal structure of a gear box of a chlorine compressor, which solves the problems of the prior art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a chlorine compressor gear box low-speed shaft oil seal structure, includes the gear box body, the mounting hole has been seted up on the gear box body, upper half oil blanket has been installed to upper wall fixed mounting in the mounting hole, lower wall fixed mounting has lower half oil blanket in the mounting hole, fixed mounting has the oil receiving dish between upper half oil blanket and the lower half oil blanket, the oil receiving dish is located the gear box body, be equipped with the gear shaft between upper half oil blanket and the lower half oil blanket internal face, fixed mounting has the thrust disc on the gear shaft, the thrust disc is located the gear box body, thrust disc and oil receiving dish assorted, fixed mounting has the oil slinging tooth on the gear shaft, the upper half oil blanket is provided with the recess with the upper half oil blanket respectively, the oil slinging tooth is located the recess, the last oil return groove of seting up of lower half oil blanket, the intercommunication has the oil return hole between oil return groove and the recess.

Preferably, a gap exists between the oil receiving disc and the thrust disc.

Preferably, the clearance between the oil receiving disc and the thrust disc is 2-2.5mm.

Preferably, the cross section of the oil receiving disc and the thrust disc is of a funnel-shaped structure.

Preferably, the number of the oil throwing teeth is at least two, and the number of the grooves is at least three.

Advantageous effects

The utility model provides a low-speed shaft oil seal structure of a gear box of a chlorine compressor, which is characterized in that most lubricating oil is connected to the bottom of an oil tank through an oil receiving disc and returned to the bottom of the oil tank, a labyrinth seal tooth gradually attenuates the lubricating pressure entering the seal tooth from the gear box, and the clearance fit of the oil receiving disc and the inclined surface of a thrust disc of a gear shaft is combined to form an oil blocking interval with good sealing effect, the sealing structure is combined to form an extremely good lubricating oil leakage prevention effect after being applied, and then the lubricating oil blocked by the seal tooth is led back to the inside of the gear box through an oil return structure formed by an oil return groove and an oil return hole, so that the lubricating oil is prevented from leaking to the outside of the gear box due to accumulation, meanwhile, the abrasion of the accumulated lubricating oil on the seal tooth is eliminated, the equipment maintenance requirement cost is reduced, and the service life of equipment is prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a low-speed shaft oil seal structure of a gear box of a chlorine compressor.

In the figure: 1. a gear housing; 2. an upper half oil seal; 3. a lower half oil seal; 4. an oil pan; 5. a gear shaft; 6. a thrust plate; 7. oil slinging teeth; 8. a groove; 9. an oil return groove; 10. and an oil return hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, the present utility model provides a technical solution: the utility model provides a chlorine compressor gear box low-speed shaft oil seal structure, including gear box 1, the mounting hole has been seted up on the gear box 1, upper wall fixed mounting has first half oil blanket 2 in the mounting hole, lower wall fixed mounting has second half oil blanket 3 in the mounting hole, fixed mounting has oil receiving dish 4 between first half oil blanket 2 and the second half oil blanket 3, oil receiving dish 4 is located gear box 1, be equipped with gear shaft 5 between first half oil blanket 2 and the second half oil blanket 3 internal wall, fixed mounting has thrust disk 6 on the gear shaft 5, thrust disk 6 is located gear box 1, thrust disk 6 and oil receiving dish 4 assorted, fixed mounting has throws oil tooth 7 on the gear shaft 5, the last recess 8 of having been seted up to the upper half oil blanket 2 and the second half oil blanket 3 in the cooperation, throw oil tooth 7 is located recess 8, set up the oil return groove 9 on the second half oil blanket 3, the intercommunication has oil return hole 10 between oil return groove 9 and the recess 8.

Further, a gap exists between the drip pan 4 and the thrust plate 6.

Further, the clearance between the oil receiving disc 4 and the thrust disc 6 is 2-2.5mm.

Further, the cross section of the oil receiving disc 4 and the thrust disc 6 is in a funnel-shaped structure.

Further, the number of the oil slinging teeth 7 is at least two, and the number of the grooves 8 is at least three.

Examples: the oil receiving disc 4 keeps most of lubricating oil off the oil seals of the upper half oil seal 2 and the lower half oil seal 3, the cross section of the oil receiving disc 4 and the thrust disc 6 is of a funnel-shaped structure, the oil receiving disc 4 and the thrust disc 6 are of reasonable inclined surface sealing structures, reliable gap values are reserved, the axial play of the gear shaft 5 and the increase of sealing pressure are considered, the reasonable value of the inclined surface gap is 2-2.5mm, oil throwing teeth 7 are arranged on the gear shaft 5, a small amount of lubricating oil enters into a sealing groove formed between the inner oil receiving disc 4 and the gear box body 1, the upper half oil seal 2 and the lower half oil seal 3 adopt a large sealing cavity to rapidly reduce the oil flow velocity, the condensed lubricating oil throws out the lubricating oil under the action of the inclined surface centrifugal force of the oil throwing teeth 7, then the lubricating oil leaked in a small amount (mainly climbs out along the gear shaft 5) is discharged out of the upper half oil seal 2 and the lower half oil seal 3 again through multi-tooth step-by-step pressure reduction, the two oil throwing teeth 7 can fully return the lubricating oil to the oil return holes 10 of the lower half oil seal 3, and finally the lubricating oil returns to the oil return holes 10 of the box body of the lower half oil seal 3 through the oil return grooves 9, the oil return grooves 3 are used, and the oil return flow circulation of the oil return holes 3 is ensured, and the oil return flow returns to the oil return holes of the oil recovery device is ensured by adopting the oil circulation system 3 and the oil recovery system 3.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Claims

1. The utility model provides a chlorine compressor gear box low-speed shaft oil seal structure, includes gear box (1), a serial communication port, set up the mounting hole on gear box (1), upper wall fixed mounting has first half oil blanket (2) in the mounting hole, lower wall fixed mounting has second half oil blanket (3) in the mounting hole, fixed mounting has oil receiving dish (4) between first half oil blanket (2) and second half oil blanket (3), oil receiving dish (4) are located gear box (1), be equipped with gear shaft (5) between first half oil blanket (2) and second half oil blanket (3) internal face, fixed mounting has thrust disk (6) on gear shaft (5), thrust disk (6) are located gear box (1), thrust disk (6) and oil receiving dish (4) phase-match, fixed mounting has oil throwing tooth (7) on gear shaft (5), it sets up recess (8) to join in marriage on first half oil blanket (2) and second half oil blanket (3), oil throwing tooth (7) are located recess (8), oil return groove (9) have oil return groove (9) to set up between first half oil blanket (9).

2. The low-speed shaft oil seal structure of a gear box of a chlorine compressor according to claim 1, wherein a gap exists between the oil receiving disc (4) and the thrust disc (6).

3. The low-speed shaft oil seal structure of the gear box of the chlorine compressor according to claim 2, wherein a gap between the oil receiving disc (4) and the thrust disc (6) is 2-2.5mm.

4. The low-speed shaft oil seal structure of the gear box of the chlorine compressor according to claim 1, wherein the cross section of the oil receiving disc (4) and the cross section of the thrust disc (6) are funnel-shaped.

5. The low-speed shaft oil seal structure of the gear box of the chlorine compressor according to claim 1, wherein the number of the oil throwing teeth (7) is at least two, and the number of the grooves (8) is at least three.