CN207547649U - A kind of rear-end of spindle hydrops discharge structure - Google Patents

Abstract

A kind of rear-end of spindle hydrops discharge structure, includes main shaft, and the upper and lower ends outside main shaft are cased with bearing；Rear labyrinth ring is cased at the top of the bearing of upper end, the bottom of bottom end bearing is cased with preceding labyrinth ring, middle spacer ring is cased between upper end bearing and bottom end bearing；The outer helical of labyrinth ring is fixed with rear cover afterwards；The outside of upper end bearing and bottom end bearing is cased with L-shaped water jacket, and water jacket is internally provided with L-shaped water jacket through-hole, and the water jacket through-hole includes water jacket vertical core and water jacket lateral aperture；The outside of rear cover is equipped with hydrops babinet, and the bottom of hydrops babinet is equipped with babinet osculum, and babinet osculum connects the top for running through water jacket vertical core.Compared to the prior art the utility model, the advantage is that：Client can be reduced because of error, forget rear-end of spindle feed liquor caused by shake out body osculum；Main shaft integrated level higher carries rear end drainage structure.

Description

A kind of rear-end of spindle hydrops discharge structure

Technical field

The utility model is related to machinery field, especially a kind of rear-end of spindle hydrops discharge structure.

Background technology

For cost and actual processing, rear end is generally enclosed in main spindle box body, and protective environment is relatively preferable, and front end is End is processed, cuts impurity, cutting fluid splash etc., protective environment is more severe, and rear-end of spindle labyrinth design opposed front end is more simple It is single.Once main spindle box body rear end hydrops height protects peak higher than main shaft, main shaft will be entered, lead to bearing failure.

The reason of rear-end of spindle hydrops formation：1）When lathe is debugged, part fluid etc. surprisingly releases；2）Machine tooling process In, coolant is splashed into babinet, is accumulated for a long time；3）Seal fails, pipeline oil are overflowed.

Existing processing mode：There is hydrops higher than trepanning at last one of sealing ring less than water jacket rear end face in babinet side Discharge in time.

The shortcomings that existing processing mode：1）Lathe producer is needed to coordinate；2）Main spindle box body is casting, rear end surface evenness compared with Difference, trepanning, which differs, is surely guided out all hydrops；3）Trepanning height is unsuitable excessively high, excessively not raised effect；4）Trepanning height is not It is preferably too low, it is too low that main shaft water jacket back-end sealing circle may be made to fail.

Utility model content

In order to solve above-mentioned problems of the prior art, the utility model provides a kind of rear-end of spindle hydrops discharge knot Structure.

Technical solution is used by the utility model solves its technical problem：A kind of rear-end of spindle hydrops discharge structure, Include main shaft, the upper and lower ends outside main shaft are cased with bearing；Rear labyrinth ring, the bottom of bottom end bearing are cased at the top of the bearing of upper end Portion is cased with preceding labyrinth ring, and middle spacer ring is cased between upper end bearing and bottom end bearing；The outer helical of labyrinth ring is fixed with rear cover afterwards； The outside of upper end bearing and bottom end bearing is cased with L-shaped water jacket, and water jacket is internally provided with L-shaped water jacket through-hole, the water Set through-hole includes water jacket vertical core and water jacket lateral aperture；The outside of rear cover is equipped with hydrops babinet, and the bottom of hydrops babinet is equipped with case Body osculum, babinet osculum connect the top for running through water jacket vertical core.

The utility model also has following additional technical feature：The external stability of water jacket has a main spindle box body, the water jacket and The upper and lower ends of the main spindle box body contact position are respectively equipped with O-ring seal.

Compared to the prior art the utility model, the advantage is that：Client can be reduced because of error, forget shake out body draining Rear-end of spindle feed liquor caused by hole；Main shaft integrated level higher carries rear end drainage structure.

The additional aspect and advantage of the utility model will be set forth in part in the description, partly will be from following description In become apparent or recognized by the practice of the utility model.

Description of the drawings

It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it can also be obtained according to these attached drawings other attached drawings.

Fig. 1 is the utility model overall structure diagram；

Reference sign：Labyrinth ring 1 afterwards；Rear cover 2；Hydrops babinet 3；O-ring seal 4；Main spindle box body 5；Babinet draining Hole 51；Water jacket 6；Water jacket vertical core 61；Water jacket lateral aperture 62；Preceding labyrinth ring 7.

Specific embodiment

The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in attached drawing Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure Completely it is communicated to those skilled in the art.

In the description of the present invention, it is to be appreciated that term " longitudinal direction ", " transverse direction ", " on ", " under ", " preceding ", The orientation or position relationship of the instructions such as " rear ", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " be based on Orientation shown in the drawings or position relationship are for only for ease of description the utility model rather than instruction or imply signified dress It puts or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that the utility model Limitation.

A kind of rear-end of spindle hydrops discharge structure, includes main shaft, and the upper and lower ends outside main shaft are cased with bearing；Upper shaft The top held is cased with rear labyrinth ring 1, and the bottom of bottom end bearing is cased with preceding labyrinth ring 7, is cased between upper end bearing and bottom end bearing Middle spacer ring；The outer helical of labyrinth ring 1 is fixed with rear cover 2 afterwards；The outside of upper end bearing and bottom end bearing is cased with L-shaped water jacket 6, water jacket 6 is internally provided with L-shaped water jacket through-hole, and the water jacket through-hole includes water jacket vertical core 61 and water jacket lateral aperture 62； The outside of rear cover 2 is equipped with hydrops babinet 3, and the bottom of hydrops babinet 3 is equipped with babinet osculum 51, the connection perforation of babinet osculum 51 In the top of water jacket vertical core 61.

The external stability of water jacket 6 has main spindle box body 5, the upper and lower ends point of 5 contact position of the water jacket 6 and the main spindle box body It She You not O-ring seal 4.

Embodiment

The utility model is improved to punch in 6 rear end of main shaft water jacket, and draw from flange.When main shaft box back has product It can be flowed out during liquid from this pipeline, without because main spindle box body 5 is no to beat osculum 51, impeded drainage, draining hole site not Hydrops can not discharge in time caused by correct or babinet rear surface is not smooth enough, can be from master after hydrops is built up to a certain extent Shaft rear end enters main shaft, and main shaft bearing is caused to fail.

The specifically used method of rear-end of spindle hydrops discharge structure is：It is lacked in water jacket 6 and the downward milling one of 2 contact plane of rear cover Mouthful, make a hole 61 vertically in notch, then beat lateral aperture 62 in water jacket flange and communicated with vertical holes.

The principle of rear-end of spindle hydrops discharge structure is：Water jacket 6 is that the minimum installation of rear-end of spindle is flat with 2 contact plane of rear cover Face, for 5 rear end of main spindle box body if there is hydrops, to enter main shaft can converge product in this earliest.Downward one notch of milling here, case Volume liquid will unify to converge product in this, then be discharged again along water jacket vertical core 61 and water jacket lateral aperture 62, without again because various Reason enters main shaft from rear-end of spindle, and pollution bearing grease leads to its failure.

Although the various embodiments described above are described, those skilled in the art once know basic wound The property made concept can then make these embodiments other change and modification, so the reality the foregoing is merely the utility model Example is applied, not thereby limits the scope of patent protection of the utility model, it is every to utilize the utility model specification and accompanying drawing content The equivalent structure or equivalent flow shift made directly or indirectly is used in other related technical areas, similarly includes Within the scope of patent protection of the utility model.

Claims (2)

1. a kind of rear-end of spindle hydrops discharge structure, which is characterized in that include main shaft, the upper and lower ends outside main shaft are cased with axis It holds；Rear labyrinth ring is cased at the top of the bearing of upper end（1）, the bottom of bottom end bearing is cased with preceding labyrinth ring（7）, upper end bearing and lower end Middle spacer ring is cased between bearing；Labyrinth ring afterwards（1）Outer helical be fixed with rear cover（2）；Upper end bearing and bottom end bearing it is outer Portion is cased with L-shaped water jacket（6）, water jacket（6）Be internally provided with L-shaped water jacket through-hole, the water jacket through-hole includes water jacket Vertical core（61）With water jacket lateral aperture（62）；Rear cover（2）Outside be equipped with hydrops babinet（3）, hydrops babinet（3）Bottom be equipped with case Body osculum（51）, babinet osculum（51）Connection runs through water jacket vertical core（61）Top.

2. rear-end of spindle hydrops discharge structure according to claim 1, which is characterized in that water jacket（6）External stability have Main spindle box body（5）, the water jacket（6）With the main spindle box body（5）The upper and lower ends of contact position are respectively equipped with O-ring seal（4）.