CN205343908U - Press crown crankcase exhaust silencing device - Google Patents
Press crown crankcase exhaust silencing device Download PDFInfo
- Publication number
- CN205343908U CN205343908U CN201620016375.1U CN201620016375U CN205343908U CN 205343908 U CN205343908 U CN 205343908U CN 201620016375 U CN201620016375 U CN 201620016375U CN 205343908 U CN205343908 U CN 205343908U
- Authority
- CN
- China
- Prior art keywords
- drain pan
- crankcase
- oil drain
- oil
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a press crown crankcase exhaust silencing device, inlet and exhaust pipe including one end intercommunication crankcase, be equipped with a plurality of gas through -holes of crossing on inlet and exhaust pipe's the pipe wall, inlet and exhaust pipe indulges and puts, and the free end lies in the top, and having cup jointed of the outer clearance of inlet and exhaust pipe keeps off the oil cover, it is the blind pipe that open side down to keep off the oil cover. The beneficial effects of the utility model are that: both the oil mist can be held back, the exhaust can be smoothly advanced again.
Description
Technical field
This utility model relates to a kind of metalworking machinery, particularly relates to the exhaust muffling device of a kind of press crankshaft case.
Background technology
In the running, four guide pillars of connection sliding block up and down reciprocatingly pass in and out the crank teeth roller box of the closing of entablature to traditional press crown crankcase, make the regular change of volume of closing transmission case body greatly and reduce, the phenomenon of air-breathing and aerofluxus occur.Such as publication number is the Chinese patent literature of " CN204365942U ", disclose a kind of " novel straight side press stable state fuselage ", lateral symmetry erects the column upper end level fixing top top gem of a girdle-pendant beam installed around, on the downside of the top gem of a girdle-pendant beam of top, crankcase is installed, at base support of motor installed above, and, in left side column external wall of upper portion, clutch and brake support is installed, in right side uprights external wall of upper portion, bent axle set is installed.Generally taking bent axle splash lubrication in the crankcase of this kind of forcing press, namely lubricating oil liquid level is between bent axle rotation peak to minimum point, impacts lubricating oil liquid level when crankshaft high-speed rotates, forms the oil gas of atomization, be attached on lubrication face and be lubricated.Along with the air-breathing aerofluxus of crankcase, if the air carrying a large amount of mist of oil in crankcase is typically piped directly in outside air, not only waste lubricating oil but also pollute environment.The way generally taked at present is the intake and exhaust path between crankcase and outside air to be designed to narrow ratio more tortuous, be also provided with mist of oil filter screen and be filtered retaining to mist of oil in current path.The problem brought therewith is, air-flow has some setbacks when passing in and out intake and exhaust path very much, results in the noise of uttering long and high-pitched sounds up to more than 80 decibels, and the physical and mental health of scene employee is caused and had a strong impact on.
Summary of the invention
This utility model technical issues that need to address are, existing crankcase air inlet and outlet device cannot have concurrently under the premise retaining the function retaining mist of oil and provide intake and exhaust effect smoothly, thus providing a kind of press crown exhausted by crankcase silencing means, both mist of oil can have been retained, again can smooth and easy intake and exhaust.
To achieve these goals, this utility model adopts the following technical scheme that a kind of press crown exhausted by crankcase silencing means, connects the air inlet-outlet pipe of crankcase including one end, and the tube wall of described air inlet-outlet pipe is provided with some vent holes excessively；Described air inlet-outlet pipe is longitudinal, and free end is above, air inlet-outlet pipe external series gap be socketed with oil blocking cover；Described oil blocking cover is the blind pipe that Open Side Down.
It is vertical that air inlet-outlet pipe is set to by this programme, and the efficiency of air-flow turnover vertical pipeline to be much higher than the pipeline that same bore is tortuous.Intake and exhaust tube wall arranges substantial amounts of vent hole excessively, it is possible to allow air-flow quickly flow in inside and outside pipe.In order to intercept mist of oil, air inlet-outlet pipe is set to longitudinal by this programme, gap, outside put oil blocking cover, when mix the bent axle inner air of mist of oil outwardly time, slow down through air inlet-outlet pipe, oil mist particles kinetic energy is cut down significantly, then impinge upon on the medial wall of oil blocking cover, intercepted by oil blocking cover.Oil blocking cover is blind pipe, and Open Side Down so that the oil intercepted by oil blocking cover can drip downwards, it is simple to reclaim and cleaning, no longer contaminated environment.Through the design of this programme, tentatively achieving while having smooth and easy intake and exhaust can also the purpose of design of efficient recovery mist of oil.
As preferably, the lower section root of described air inlet-outlet pipe is fixedly connected with oil drain pan；Described oil drain pan is card hollow ring dish upwards, including oil drain pan card, oil drain pan medial wall and oil drain pan lateral wall；The lower end of described oil blocking cover is equipped with clearance distance with described oil drain pan card, oil drain pan medial wall and oil drain pan lateral wall.In this programme, the outside for air inlet-outlet pipe has been arranged below the annular disk of a hollow as oil drain pan, oil drain pan card upwards, the just lower end to oil blocking cover, the oil droplet intercepted by oil blocking cover, all can drop onto downwards in oil drain pan, more convenient collection.
As preferably, the height of described oil drain pan lateral wall is L, and described oil blocking cover lower end is H to the distance of described oil drain pan card, has L > H.The purpose of the design is to be slowed down further by the air-flow from oil blocking cover, allows impinge upon remaining oil mist particles being collected on oil drain pan lateral wall.
As preferably, described oil drain pan is positioned at above described crankcase；The bottom of described oil drain pan card is provided with the oil return through-hole towards crankcase.In order to alleviate the working strength of attendant, oil drain pan is directly designed above crankcase body by this programme, and devises oil return through-hole on oil drain pan and directly connect crankcase, makes the lubricating oil reclaimed in oil drain pan can automatically flow back to crankcase.
As preferably, being equipped with between the described inside and outside surface crossing vent hole and described air inlet-outlet pipe and seamlessly transit.In order to reduce the noise of uttering long and high-pitched sounds when air-flow flows through acute angle, this programme is equipped with between the inside and outside surface of vent hole and air inlet-outlet pipe excessively and seamlessly transits, and makes air current flow smoother, and pneumatic noise is less.
In sum, the beneficial effects of the utility model are: both can retain mist of oil, again can smooth and easy intake and exhaust.
Accompanying drawing explanation
Fig. 1 is axial sectional view of the present utility model,
Fig. 2 is top view of the present utility model.
Wherein: 1 air inlet-outlet pipe, 2 oil blocking covers, 3 oil drain pans, 4 crankcases, 11 cross vent hole, 31 oil return through-holes, 32 oil drain pan lateral walls.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, this utility model is further described.
Embodiment as shown in Figure 1 and Figure 2, a kind of press crown exhausted by crankcase silencing means, including the air inlet-outlet pipe 1 being vertically built up in above crankcase 4, the tube wall of air inlet-outlet pipe is provided with substantial amounts of vent hole 11 excessively uniformly, cross the pass of vent hole for circle, and cross to be equipped with between the inside and outside surface of vent hole and air inlet-outlet pipe and seamlessly transit.The outside of air inlet-outlet pipe is cased with oil blocking cover 2, and oil blocking cover is the blind pipe that Open Side Down.Being fixedly connected with oil drain pan 3 outside the root of air inlet-outlet pipe, oil drain pan is the annular disk of hollow, is provided with oil drain pan card, oil drain pan medial wall and oil drain pan lateral wall 32, oil drain pan card upwards, just to oil blocking cover lower end.The lower end of oil blocking cover is equipped with clearance distance with oil drain pan card, oil drain pan medial wall and oil drain pan lateral wall, forms gas channel.In this example, oil drain pan medial wall unites two into one with the tube wall lower end of air inlet-outlet pipe.The height of oil drain pan lateral wall is L, and oil blocking cover lower end to the distance of oil drain pan card is H, has L > H.The bottom of oil drain pan card is additionally provided with oil return through-hole 31, and oil return through-hole is directly connected to inside the crankcase being positioned at below oil drain pan.In this example, air inlet-outlet pipe, oil blocking cover are circle, facilitate machine-shaping.Air inlet-outlet pipe, oil blocking cover, oil drain pan material be steel, the low long service life of cost.
A kind of press crown exhausted by crankcase silencing means of the present utility model, increase in crankcase internal pressure, containing lubricator body outwardly time, the flow direction of air-flow is: inside crankcase, air inlet-outlet pipe, cross inside vent hole, oil blocking cover, the gap between oil blocking cover and oil drain pan, the external world.Vent hole was being passed through containing lubricator stream, speed slows down, oil mist particles kinetic energy is cut down significantly, then oil blocking cover medial wall is struck, oil mist particles is intercepted, and is trapped in oil blocking cover medial wall, is affected by gravity and flows downward after being gathered into sufficient amount, drop onto in oil drain pan, to be first be also a herein main mist of oil intercepting position.Remaining oil mist particles, when by gap between oil blocking cover and oil drain pan, can strike oil drain pan lateral wall, and oil drain pan lateral wall intercepts remaining oil mist particles, is pooled in oil drain pan, is second mist of oil intercepting position herein.Through twice interception, most of mist of oil is all intercepted, forms lubricating oil liquid, flows back to inside crankcase from oil return through-hole.When crankcase internal pressure reduce, outside air inwardly flow time, the flow direction of air-flow is: inside extraneous, gap between oil blocking cover and oil drain pan, oil blocking cover, cross inside vent hole, air inlet-outlet pipe, crankcase.No matter air inlet or aerofluxus, crosses to be equipped with between the inside and outside surface of vent hole and air inlet-outlet pipe and seamlessly transits, and pneumatic noise is greatly lowered.Actually detected through inventor, applying a kind of press crown exhausted by crankcase silencing means of the present utility model, intake and exhaust mouth of pipe noise, by original more than 80 decibels, is plummeted to about 30 decibels, working environment is substantially improved, and mist of oil organic efficiency also increases.
Claims (5)
1. a press crown exhausted by crankcase silencing means, connects the air inlet-outlet pipe (1) of crankcase (4), it is characterized in that including one end, and the tube wall of described air inlet-outlet pipe is provided with some vent holes (11) excessively；Described air inlet-outlet pipe is longitudinal, and free end is above, air inlet-outlet pipe external series gap be socketed with oil blocking cover (2)；Described oil blocking cover is the blind pipe that Open Side Down.
2. a kind of press crown exhausted by crankcase silencing means according to claim 1, is characterized in that, the lower section root of described air inlet-outlet pipe is fixedly connected with oil drain pan (3)；Described oil drain pan is card hollow ring dish upwards, including oil drain pan card, oil drain pan medial wall and oil drain pan lateral wall (32)；The lower end of described oil blocking cover is equipped with clearance distance with described oil drain pan card, oil drain pan medial wall and oil drain pan lateral wall.
3. a kind of press crown exhausted by crankcase silencing means according to claim 2, is characterized in that, the height of described oil drain pan lateral wall is L, and described oil blocking cover lower end is H to the distance of described oil drain pan card, has L > H.
4. a kind of press crown exhausted by crankcase silencing means according to Claims 2 or 3, is characterized in that, described oil drain pan is positioned at above described crankcase；The bottom of described oil drain pan card is provided with the oil return through-hole (31) towards crankcase.
5. a kind of press crown exhausted by crankcase silencing means according to claim 1 or 2 or 3, is characterized in that, is equipped with and seamlessly transits between the described inside and outside surface crossing vent hole and described air inlet-outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620016375.1U CN205343908U (en) | 2016-01-08 | 2016-01-08 | Press crown crankcase exhaust silencing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620016375.1U CN205343908U (en) | 2016-01-08 | 2016-01-08 | Press crown crankcase exhaust silencing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205343908U true CN205343908U (en) | 2016-06-29 |
Family
ID=56174280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620016375.1U Expired - Fee Related CN205343908U (en) | 2016-01-08 | 2016-01-08 | Press crown crankcase exhaust silencing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205343908U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116538048A (en) * | 2023-06-30 | 2023-08-04 | 珠海格力电器股份有限公司 | Piston compressor and refrigeration plant |
-
2016
- 2016-01-08 CN CN201620016375.1U patent/CN205343908U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116538048A (en) * | 2023-06-30 | 2023-08-04 | 珠海格力电器股份有限公司 | Piston compressor and refrigeration plant |
| CN116538048B (en) * | 2023-06-30 | 2023-09-22 | 珠海格力电器股份有限公司 | Piston compressor and refrigeration plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20210108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |