CN209688059U

CN209688059U - A kind of lathe reduction gearbox excess flow protection device

Info

Publication number: CN209688059U
Application number: CN201920300267.0U
Authority: CN
Inventors: 朱文宝; 邢雨; 牛志强; 胡浩
Original assignee: Shanghai Shanen Intelligent Technology Co Ltd
Current assignee: Shanghai Shanen Intelligent Technology Co Ltd
Priority date: 2019-03-11
Filing date: 2019-03-11
Publication date: 2019-11-26
Anticipated expiration: 2029-03-11

Abstract

A kind of lathe reduction gearbox excess flow protection device; comprising: overflow pipe; it is vertically arranged at the bottom that lathe reduction gearbox is set to lubricating oil return mouth side; and; the overflow ducts being connected to overflow infratubal port are arranged in lathe reduction gearbox bottom; the overflow ducts are located at the lower section of the oil return opening, and penetrate through with the external world；The overflow protection height of bottom is less than the warning height that lubricating oil in lathe reduction gearbox floods spindle bearing holder side flange top in the upper port of the overflow pipe to lathe reduction gearbox；Dustproof cover covers at the overflow pipe upper end, and is connected and fixed on the overflow pipe upper end by screw, and overflow gap is set between dustproof cover and overflow pipe.Utility model device is pure mechanic structure, and alternative existing detection switch technology can play a protective role to main shaft, this is simple and compact for structure, at low cost, it is easy to accomplish.

Description

A kind of lathe reduction gearbox excess flow protection device

Technical field

The utility model relates to machine tool manufacturing field, in particular to a kind of lathe reduction gearbox excess flow protection device is right The overflow protection that lathe core component main shaft shields.

Background technique

With the development of industrial technology, the demand to high-power lathe is more and more, and machine tool chief axis power is also increasing, This layout for allowing for main shaft reduction gearbox internal gear becomes increasingly complex, and causes the usage amount of gear lubricant to want increasing, such as Fruit is not in time by these lubricating oil pumpbacks to fuel tank, then main shaft is easy to be flooded by lubricating oil, and main shaft is caused to damage.

Traditional technology is so that oil inlet and oil return in reduction gearbox is reached equilibrium state by throttle valve adjustment piping flow.But This traditional technology is difficult due to adjusting, and since can not to open factor too many for the flow loss etc. in pipeline, is difficult to play to master The protective effect of axis.

The prior art, which mostly uses liquid level detecting switch to carry out liquid level monitoring, can issue letter when liquid level reaches designated position Number give system, then system control oil pump work carry out pumpback lubricating oil, so that main shaft be avoided to be flooded by lubricating oil.Chinese patent CN201320497369 disclose it is a kind of using oil float and detection switch carry out deceleration tank drainback, to protect main shaft.But The premise of this technology is that detection switch can work normally, then can not be right when detection switch damage or cisco unity malfunction Main shaft is protected.

Summary of the invention

The purpose of this utility model is to provide a kind of lathe reduction gearbox excess flow protection device, which is purely mechanic knot Structure, alternative existing detection switch technology, can play a protective role to main shaft, this is simple and compact for structure, at low cost, be easy to real It is existing.

For above-mentioned purpose, the technical solution of the utility model is:

A kind of lathe reduction gearbox excess flow protection device comprising: overflow pipe is vertically arranged at lathe reduction gearbox and is set to profit The bottom of lubricating oil oil return opening side, and, the overflow ducts being connected to overflow infratubal port are arranged in lathe reduction gearbox bottom, should Overflow ducts are located at the lower section of the oil return opening, and penetrate through with the external world；Bottom in the upper port of the overflow pipe to lathe reduction gearbox The overflow protection height in portion is less than the warning height that lubricating oil in lathe reduction gearbox floods spindle bearing holder side flange top；It is anti- Dirt lid covers at the overflow pipe upper end, and is connected and fixed on the overflow pipe upper end by screw, between dustproof cover and overflow pipe If overflow gap.

Preferably, overflow pipe upper end outer wall plane circumferentially arranged symmetrically, forms the overflow gap between dustproof cover.

Preferably, the fixed groove that bottom setting is planted for the overflow pipe lower end in the lathe reduction gearbox.

Preferably, the overflow protection height is lower than warning height 15mm ± 3mm.

When pasta reaches overflow mechanism protection height in reduction gearbox, lubricating oil can be discharged from overflow pipe by overflow hole, To play the role of protecting main shaft.

Utility model has the advantages that

Utility model device is pure mechanic structure, and securely and reliably, failure rate is low, avoids the electrical components such as detection switch The high problem of easily damaged failure of removal rate.This is simple and compact for structure, at low cost, it is easy to accomplish.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model embodiment.

In figure, 1 is overflow pipe, and 2 be dustproof cover, and 3 be screw, and 4 be overflow gap, and 100 be deceleration box, and 101 be oil return Mouthful, 102 be overflow ducts, and 103 be fixed groove, and 104 be oil inlet, and 200 be main shaft, and 300 be bearing block, and 400 be ring flange, 500 be grease-box.

Specific embodiment

Referring to Fig. 1, lathe reduction gearbox excess flow protection device described in the utility model, comprising:

Overflow pipe 1 is vertically arranged at the bottom that lathe reduction gearbox 100 is set to 101 side of lubricating oil return mouth, and, institute It states 100 bottom of lathe reduction gearbox and the overflow ducts 102 being connected to 1 lower port of overflow pipe is set, which is located at described The lower section of oil return opening 101, and penetrated through with the external world；The overflow of bottom is protected in the upper port to lathe reduction gearbox 100 of the overflow pipe 1 Shield height H1 is less than the warning height that lubricating oil in lathe reduction gearbox 100 floods 200 bearing block of main shaft, 300 side flange, 400 top Spend H2；

Dustproof cover 2 covers at 1 upper end of overflow pipe, and is connected and fixed on 1 upper end of overflow pipe by screw 3, dust-proof Overflow gap 4 is set between lid 2 and overflow pipe 1.

Preferably, 1 upper end outer wall of the overflow pipe plane 11 circumferentially arranged symmetrically, forms the overflow between dustproof cover 2 Gap 4.

Preferably, the fixed groove 103 that bottom setting is planted for 1 lower end of overflow pipe in the lathe reduction gearbox 100.

Preferably, the overflow protection height H1 is lower than warning height H2 at least 15mm.

Under working condition, the intracorporal lubricating oil of reduction gearbox gradually increases, if lubricating oil height reaches warning height, profit Lubricating oil will flood main shaft, damage to main shaft.

In the utility model, when lubricating oil reaches overflow protection height, reduction gearbox can be discharged by overflow pipe in lubricating oil Outside body, it is not up to warning height, to achieve the purpose that protect main shaft.

Claims

1. a kind of lathe reduction gearbox excess flow protection device characterized by comprising

Overflow pipe is vertically arranged at the bottom that lathe reduction gearbox is set to lubricating oil return mouth side, and, the lathe reduction gearbox Bottom is arranged the overflow ducts that are connected to overflow infratubal port, which is located at the lower section of the oil return opening, and with the external world Perforation；The overflow protection height of bottom is less than lubricating oil in lathe reduction gearbox in the upper port of the overflow pipe to lathe reduction gearbox Flood the warning height on spindle bearing holder side flange top；

Dustproof cover covers at the overflow pipe upper end, and is connected and fixed on the overflow pipe upper end, dustproof cover and overflow by screw Overflow gap is set between pipe.

2. lathe reduction gearbox excess flow protection device as described in claim 1, which is characterized in that overflow pipe upper end outer wall week To plane arranged symmetrically, the overflow gap between dustproof cover is formed.

3. lathe reduction gearbox excess flow protection device as described in claim 1, which is characterized in that bottom in the lathe reduction gearbox The fixed groove planted for the overflow pipe lower end is set.

4. lathe reduction gearbox excess flow protection device as described in claim 1, which is characterized in that the overflow protection height is lower than Guard against height 15mm ± 3mm.