CN205026069U - Breathing filter of hydraulic fork truck gearbox - Google Patents
Breathing filter of hydraulic fork truck gearbox Download PDFInfo
- Publication number
- CN205026069U CN205026069U CN201520648472.8U CN201520648472U CN205026069U CN 205026069 U CN205026069 U CN 205026069U CN 201520648472 U CN201520648472 U CN 201520648472U CN 205026069 U CN205026069 U CN 205026069U
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- oil
- oil scale
- fuel door
- chi
- hydraulic
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Abstract
The utility model relates to a breathing filter of hydraulic fork truck gearbox. Include and add oil cap and oil pointer chi, add the oil cap for the bottle lid form, refuel and offered the ventilation breather on the lateral wall of the portion of covering, strain the gas material with being equipped with with the oil cap of corresponding of ventilation breather, the upper end of oil pointer chi is fixed to be located with in the oil cap, and during the use, the measuring junction of oil pointer chi stretches into to the hydraulic tank in through hydraulic tank's the oil pipe that adds, be equipped with the oil pointer chi baffle more than through the round pin on the upper portion chi pole of oil pointer chi, the gas pocket to the equipartition on the oil pointer chi baffle, during the use, the oil pointer chi baffle cooperation more than lies in hydraulic tank's the oil pipe that adds. The utility model discloses form the oily structure of triple fenders on present filter basis, can effectively avoid the oil leak when the noncongestion is breathed to the guarantee hydraulic transmission box, improve product quality.
Description
Technical field
The utility model belongs to industrial vehicle gearbox gas permeable devices, is specifically related to a kind of breathing circuit filter for hydraulic fork lift gearbox.
Background technique
Existing hydraulic fork lift gearbox breathing circuit filter, as shown in Figure 3, be made up of fuel door 3, oil scale 6, filter gas material 1, cotter pin 8, back-up ring 2 and baffle plate 4, be installed on the oil filler place of hydrodynamic gearbox body, it has prevention environmental contaminants and invades, ensure that hydraulic transmission box completes air exchange, the oil-level measurement etc. of hydrodynamic gearbox body can be carried out.But when working long hours under higher or speed change severe duty in ambient temperature, in gearbox, oil temperature raises, and part fluid changes mist of oil into or oil vacuole is emerged from oil filling pipe, i.e. leakage of oil.In leakage of oil process, have fluid to stay in filter gas material 1, the pollutant invaded with the external world blocks filters gas material, and hydraulic transmission box inside and outside differential pressure is increased, and accelerates fluid and spills.In hydraulic transmission box, oil pressure is large, and oil temperature is high, and oil mass is few, can accelerate the inefficacies such as the O type circle of hydraulic transmission box body inside, seal ring and friction plate; Affect the service behaviour of the parts such as oil feed pump, torque-converters and clutch, increase products noise; And oil spill liquid also can pollute vehicle body, affect car load outward appearance, befouling environment.
Summary of the invention
Work in the presence of a harsh environment to overcome existing hydraulic transmission box filter the defect of leakage of oil can occur, the utility model provides a kind of breathing circuit filter of hydraulic fork lift gearbox of modified node method.
A kind of breathing circuit filter of hydraulic fork lift gearbox comprises fuel door 3 and oil scale 6, described fuel door 3 is bottle cap shape, also be provided with baffle plate 4 in fuel door 3, the sidewall on fuel door 3 top offers spiracle, the fuel door 3 corresponding with spiracle is provided with filter gas material 1; The upper end of described oil scale 6 is fixed in fuel door 3, and during use, the measuring end of oil scale 6 stretches in hydrodynamic gearbox body through the oil filling pipe of hydrodynamic gearbox body, for measuring oil level;
The top chi bar of described oil scale 6 is provided with the oil scale baffle plate 5 of more than a piece by pin, uniform pore on described oil scale baffle plate 5; During use, the oil scale baffle plate 5 of more than a piece coordinates the oil filling pipe being positioned at hydrodynamic gearbox body.
The spacing that the top chi bar of described oil scale 6 is provided with between two pieces of oil scale baffle plates, 5, two pieces of oil scale baffle plates 5 by pin is greater than 50mm.
Described oil scale baffle plate 5 is circular plate-like shape.
Advantageous Effects of the present utility model embodies in the following areas:
1. the utility model increases by two baffle plates with porous on existing filter basis, forms triple oil baffle structure, can guarantee gearbox breathe unimpeded while effectively avoid leakage of oil, improve the quality of products.
2. the utility model can meet the diversified demand of product structure, is applicable to various oil filling pipe and is convenient to install.
3. the utility model structure is simple, rationally distributed, reliability is high, cost is lower, can be applied in the hydraulic transmission box of the fork truck of different tonnage, tractor, loader and other industrial vehicle.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the sectional view of Fig. 1.
Fig. 3 is the filter structure schematic representation of existing hydraulic fork lift gearbox.
Sequence number in upper figure: filter gas material 1, back-up ring 2, fuel door 3, baffle plate 4, oil scale baffle plate 5, oil scale 6, oil filling pipe 7, cotter pin 8, hydrodynamic gearbox body 9.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the utility model is further described.
See Fig. 1, a kind of breathing circuit filter of hydraulic fork lift gearbox comprises fuel door 3 and oil scale 6.Fuel door 3 is bottle cap shape, the upper end of oil scale 6 is fixedly installed in fuel door 3, in fuel door 3, baffle plate 4 is also housed, and the sidewall on fuel door 3 top offers spiracle, the fuel door 3 corresponding with spiracle, built with filter gas material 1, is provided with back-up ring 2 outside filter gas material 1.The upper end of oil scale 6 is fixedly installed in fuel door 3, and during use, the measuring end of oil scale 6 stretches in hydrodynamic gearbox body 9, for measuring oil level through the oil filling pipe 7 of hydrodynamic gearbox body.Improvement is: the top chi bar of oil scale 6 is provided with two pieces of oil scale baffle plates 5 by cotter pin 8, and oil scale baffle plate 5 is circular plate-like shape, and uniform pore on every block oil scale baffle plate 5, the spacing between two pieces of oil scale baffle plates 5 is 60mm.During use, two pieces of oil scale baffle plates 5 coordinate the oil filling pipe 7 being positioned at hydrodynamic gearbox body 9.
During work, hydraulic transmission box body internal gear engages each other transferring power, and especially under speed change severe duty, the gear of hydraulic transmission box internal delivery power and bearing produce amount of heat, its inside temperature significantly promotes, and causes the larger pressure reduction of the inside and outside formation of hydraulic transmission box.And under the effect that the transmission oil of hydraulic transmission box inside stirs at high temperature and gear, form a large amount of mist of oil, oil vacuole and the fluid splashed, and mix with air original in hydraulic transmission box, under the effect of inside and outside differential pressure, upwards flow along oiling pipeline, most mist of oil, oil vacuole and the fluid splashed, cohesion backflow under the barrier effect of first piece of oil scale baffle plate 5 with oiling tube wall, remaining mist of oil and oil vacuole continue cohesion backflow under the barrier effect of second piece of oil scale baffle plate 5 with oiling tube wall, thereupon, mist of oil cohesion backflow under the effect of baffle plate 4 with oiling tube wall of small amount, finally, will through triple oil baffle structure filtered air, discharged by the spiracle in filter gas material 1 and fuel door 3, make the external and internal pressure of gearbox balanced.No longer increase when hydraulic transmission box inside temperature or relatively reduce, then original balance can not maintain, hydrodynamic gearbox body inside forms negative pressure, outside air is entered by the spiracle in fuel door 3 under inside and outside differential pressure effect, and gas material 1 elimination impurity after filtration, enter hydraulic transmission box, so repeatedly carry out, thus meet the respiratory demand of speed reducer.
Claims (3)
1. the breathing circuit filter of a hydraulic fork lift gearbox, comprise fuel door (3) and oil scale (6), described fuel door (3) is bottle cap shape, baffle plate (4) is also provided with in fuel door (3), the sidewall on fuel door (3) top offers spiracle, and the fuel door (3) corresponding with spiracle is provided with filter gas material (1); The upper end of described oil scale (6) is fixed in fuel door (3), and during use, the measuring end of oil scale (6) stretches in hydrodynamic gearbox body through the oil filling pipe of hydrodynamic gearbox body, for measuring oil level, it is characterized in that:
The top chi bar of described oil scale (6) is provided with the oil scale baffle plate (5) of more than a piece by pin, upper uniform the pore of described oil scale baffle plate (5); During use, the oil scale baffle plate (5) of more than a piece coordinates the oil filling pipe being positioned at hydrodynamic gearbox body.
2. the breathing circuit filter of a kind of hydraulic fork lift gearbox according to claim 1, it is characterized in that: the top chi bar of described oil scale (6) is provided with two pieces of oil scale baffle plates (5) by pin, the spacing between two pieces of oil scale baffle plates (5) is greater than 50mm.
3. the breathing circuit filter of a kind of hydraulic fork lift gearbox according to claim 1 and 2, is characterized in that: described oil scale baffle plate (5) is circular plate-like shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520648472.8U CN205026069U (en) | 2015-08-26 | 2015-08-26 | Breathing filter of hydraulic fork truck gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520648472.8U CN205026069U (en) | 2015-08-26 | 2015-08-26 | Breathing filter of hydraulic fork truck gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205026069U true CN205026069U (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520648472.8U Active CN205026069U (en) | 2015-08-26 | 2015-08-26 | Breathing filter of hydraulic fork truck gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205026069U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361340A (en) * | 2018-04-11 | 2018-08-03 | 安徽合力股份有限公司 | A kind of hydraulic transmission box |
-
2015
- 2015-08-26 CN CN201520648472.8U patent/CN205026069U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361340A (en) * | 2018-04-11 | 2018-08-03 | 安徽合力股份有限公司 | A kind of hydraulic transmission box |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |