CN211573922U - Oil filter of hydraulic system of hydraulic machinery - Google Patents
Oil filter of hydraulic system of hydraulic machinery Download PDFInfo
- Publication number
- CN211573922U CN211573922U CN201821828450.XU CN201821828450U CN211573922U CN 211573922 U CN211573922 U CN 211573922U CN 201821828450 U CN201821828450 U CN 201821828450U CN 211573922 U CN211573922 U CN 211573922U
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- filter
- oil
- hydraulic system
- hydraulic
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Abstract
The utility model relates to a hydraulic machinery hydraulic system oil filter belongs to hydraulic machinery technical field. The filter comprises a shell and a filter cover, wherein the filter cover, a filter head, a filter cartridge and a sedimentation barrel are sequentially arranged from top to bottom; the filter head is a hollow cone and is arranged in the filter cylinder, and the upper end of the filter head is connected with the tail end of the oil inlet in an equal-diameter mode; the filter cartridge is internally provided with an inclined plane to form an inverted hollow cone, the hollow cone and the filter head cone form a vortex filter oil chamber, and under the action of centrifugal force, dirt with large mass is extruded on the outermost layer of a vortex and slides into the settling barrel under the action of the vortex chamber. The front end of the oil outlet pipe is provided with the filter screen, so that the small dirt which is not precipitated under the action of vortex is filtered for the second time, and the filtering effect is ensured. The utility model discloses a hydraulic machinery hydraulic system oil filter, equipment is simple, be convenient for unpick and wash and install, and the filter effect is better.
Description
Technical Field
The utility model belongs to the technical field of hydraulic machinery, concretely relates to hydraulic machinery hydraulic system oil filter.
Background
The hydraulic equipment is an important branch of electromechanical products, and has many advantages, so that the hydraulic equipment has irreplaceable effects in certain transmissions, such as heavy-load high-frequency response equipment, large-speed-ratio stepless speed regulation equipment and the like, and is more superior to hydraulic transmission.
When the hydraulic oil is polluted, the surface of a kinematic pair in the system can be scratched or abraded, small holes, gaps and the like in each element can be blocked, the working performance of the hydraulic system can be gradually reduced along with the increase of the oil pollution degree, and the working reliability of the hydraulic system is directly influenced. Statistically, more than 50% of mechanical equipment failures are due to contamination of the oil, and more than 70% of hydraulic system failures are due to contamination of the oil. Therefore, the control of the oil pollution degree of the hydraulic system is always a technical problem in the field of hydraulic equipment.
In addition to careful system cleaning before the operation of the machinery, routine oil cleaning is also important to control contamination of the oil. At present, oil is purified by using a special oil purifying device, and oil filter filtration is mainly used in most mechanical equipment.
The oil filters used in the hydraulic systems of the prior art are classified into three types, namely surface type, depth type and adsorption type oil filters, according to the filtering mechanism of the filter element materials. The whole filtering function of the surface type filter is realized by one geometric surface. The filtered contaminant impurities are trapped on the side of the filter element upstream of the oil. The filter element material is provided with uniform calibrated small holes, and can filter impurities with sizes larger than the sizes of the small holes. Since the contaminating impurities accumulate on the surface of the filter element, it is easily clogged. The filter element material of the depth row filter is porous and permeable, and a tortuous channel is arranged inside the filter element material. Impurities larger than the surface aperture are directly intercepted on the outer surface, and smaller polluted impurities enter the filter material and collide against the channel wall, and are filtered due to the adsorption effect. The tortuous passage in the filter material is easy to deposit polluted impurities, and the replaced filter element is easy to cause environmental pollution. The adsorptive filter adsorbs impurities in oil on the surface of the adsorptive filter through a magnetic filter element material, and the filtering effect on non-magnetic impurities is poor.
Disclosure of Invention
In order to overcome the technical defect that the oil filter filtration effect among the hydraulic system of prior art is not good, the utility model provides a hydraulic machinery hydraulic system oil filter that the filter effect is good, low in production cost, resource consumption is few, the environmental impact is little, the maintenance cost is low.
The utility model adopts the technical proposal that: an oil filter of a hydraulic system of a hydraulic machine comprises a shell and a filter cover. The filter head is characterized in that a filter cover, a filter head, a filter cartridge and a sedimentation barrel are sequentially arranged from top to bottom, an oil inlet pipe orifice is arranged on the filter cover, and the tail end of the oil inlet pipe orifice is connected with the filter head; the filter head is a hollow cone and is arranged in the filter cylinder, and the upper end of the filter head is connected with the tail end of the oil inlet in an equal-diameter mode; the filter cartridge is characterized in that the outer shell of the filter cartridge is a cylinder, the inner part of the filter cartridge is an inclined plane to form an inverted hollow cone, the hollow cone and the filter head cone form a vortex filter oil cavity, the upper part of the filter oil cavity is communicated with an oil outlet pipe orifice, and the front end of the oil outlet pipe orifice is provided with a filter screen; the lower end of the filter cylinder is connected with a precipitation barrel, and the precipitation barrel is communicated with the lower end of the oil filtering cavity.
Preferably, the filter cover is screwed to the filter cartridge by means of a screw.
Preferably, the taper of the hollow cone of the filter head is 15-20 degrees.
Preferably, the inner inclined surface of the filter cartridge forms an angle of 15-20 degrees with the axis.
Preferably, the settling barrel is screwed to the lower end of the filter cartridge by means of screw threads.
Preferably, the filter screen at the front end of the oil outlet pipe orifice is 50-120 meshes.
Preferably, the filter screen is divided into two layers.
Preferably, a transparent observation window is arranged on the sedimentation barrel, and liquid level scale marks are arranged on the observation window.
The utility model discloses a hydraulic pressure machinery hydraulic system oil filter during operation, hydraulic oil gets into the toper filter head from the oil feed mouth of pipe, gets into swirl oil strain chamber and forms the vortex. In the same micro volume of the oil in the vortex, the mass of the hydraulic oil is mostly smaller than that of the dirt (such as metal dirt) of the oil, and the kinetic energy of the dirt obtained in the vortex is higher than that of the oil, so that the centrifugal force applied to the dirt in the vortex is also larger than that of the oil. Under the action of centrifugal force, dirt with large mass is squeezed to the outermost layer of the vortex and slides into the settling barrel under the action of the vortex. Therefore, the hydraulic oil passing through the oil inlet removes dirt with larger mass, and the rest dirt with small mass is filtered for the second time when passing through the filter screen at the front end of the oil outlet pipe orifice. The oil filtering function of the oil filter is continuously performed along with the continuous circulation of the oil, and the cleaning requirement of the oil in the hydraulic system control loop can be met repeatedly.
The utility model has the advantages that:
1. the utility model discloses a hydraulic machinery hydraulic system oil filter strains inside and inverts the hollow cone for the inclined plane formation, hollow cone and filter head cone form the swirl and strain the oil pocket, and under the centrifugal force effect, the foul that the quality is big is crowded outermost at the vortex, goes into the setting bucket under the vortex cavity effect.
2. The utility model discloses a hydraulic machinery hydraulic system oil filter, the orificial front end of oil outlet is equipped with the filter screen, carries out secondary filter to the small foul that does not deposit because of the vortex effect, has guaranteed the filter effect.
3. The utility model discloses an oil filter of hydraulic machinery hydraulic system, equipment is simple, be convenient for unpick and wash and install, filters
The effect is better.
Drawings
Fig. 1 is a cross-sectional view of an oil filter for a hydraulic system of a hydraulic machine according to the present invention.
Fig. 2 is a partial enlarged view of the strainer of the oil filter of the hydraulic machine hydraulic system of the present invention.
Fig. 3 is a schematic diagram of a sedimentation barrel structure of the oil filter of the hydraulic system of the hydraulic machine of the present invention.
In the figure, 1-shell, 2-filter cover, 3-filter head, 4-filter cartridge, 5-sedimentation barrel, 6-oil inlet pipe orifice, 7-oil outlet pipe orifice, 8-filter screen and 9-observation window.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments so that those skilled in the art may better understand the invention, but the invention is not limited thereto. In the following embodiments, directional terms such as "up, down, left, and right" are only directions referring to the drawings, and therefore, the directional terms are used for illustration and are not used to limit the present invention.
An oil filter of a hydraulic system of a hydraulic machine comprises a shell 1 and a filter cover 2. The filter cover 2, the filter head 3, the filter cartridge 4 and the sedimentation barrel 5 are sequentially arranged from top to bottom, the filter cover 2 is screwed on the filter cartridge 4 through threads, an oil inlet pipe orifice 6 is arranged on the filter cover 2, and the filter head 3 is connected to the tail end of the oil inlet pipe orifice 6; the filter head 3 is a hollow cone, the taper of the hollow cone is 15 degrees, the hollow cone is arranged in the filter cylinder 4, and the upper end of the hollow cone is connected with the tail end of the oil inlet 6 in an equal-diameter mode; the outer shell of the filter cylinder 4 is a cylinder, the inner part of the filter cylinder is an inclined plane to form an inverted hollow cone, and an included angle between the inclined plane of the inner part 4 of the filter cylinder and an axis is 17 degrees. The vortex oil filtering cavity is formed by the hollow cone and the filter head cone, the upper part of the oil filtering cavity is communicated with an oil outlet pipe opening 7, the front end of the oil outlet pipe opening 7 is provided with a filter screen 8, and the mesh number of the filter screen is 50-120 meshes. The lower end of the filter cylinder 4 is connected with a precipitation barrel 5, the precipitation barrel 5 is screwed at the lower end of the filter cylinder 4 through threads, a transparent observation window 9 is arranged on the precipitation barrel 5, and liquid level scale marks are arranged on the observation window 9.
The utility model discloses a hydraulic pressure machinery hydraulic system oil filter during operation, hydraulic oil gets into toper filter 3 from oil feed mouth of pipe 6, gets into swirl oil strain chamber and forms the vortex. In the same micro volume of the oil in the vortex, the mass of the oil is mostly smaller than that of the dirt (such as metal dirt) of the oil, and the kinetic energy of the dirt obtained in the vortex is higher than that of the oil, so that the centrifugal force applied to the dirt in the vortex is also larger than that of the oil. Under the effect of centrifugal force, the greater mass of dirt is squeezed at the outermost layer of the vortex and eventually slides down the vortex chamber wall into the precipitation tub 5. In this way, the hydraulic oil passing through the oil inlet removes dirt with a larger mass, and the remaining dirt with a smaller mass is filtered a second time when passing through the filter screen 8 at the front end of the oil outlet pipe opening 7. The oil filtering function of the oil filter is continuously performed along with the continuous circulation of the oil, and the cleaning requirement of the oil in the hydraulic system control loop can be met repeatedly.
The preferred embodiments of the present invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides a hydraulic machinery hydraulic system oil filter, includes casing and strains the lid, its characterized in that: the filter head is characterized in that a filter cover, a filter head, a filter cartridge and a sedimentation barrel are sequentially arranged from top to bottom, an oil inlet pipe orifice is arranged on the filter cover, and the tail end of the oil inlet pipe orifice is connected with the filter head; the filter head is a hollow cone and is arranged in the filter cylinder, and the upper end of the filter head is connected with the tail end of the oil inlet in an equal-diameter mode; the filter cartridge is characterized in that the outer shell of the filter cartridge is a cylinder, the inner part of the filter cartridge is an inclined plane to form an inverted hollow cone, the hollow cone and the filter head cone form a vortex filter oil cavity, the upper part of the filter oil cavity is communicated with an oil outlet pipe orifice, and the front end of the oil outlet pipe orifice is provided with a filter screen; the lower end of the filter cylinder is connected with a precipitation barrel, and the precipitation barrel is communicated with the lower end of the oil filtering cavity.
2. The hydraulic machine hydraulic system oil filter of claim 1, wherein: the filter cover is screwed on the filter cartridge through threads.
3. The hydraulic machine hydraulic system oil filter of claim 1, wherein: the conicity of the hollow cone of the filter head is 15-20 degrees.
4. The hydraulic machine hydraulic system oil filter of claim 1, wherein: the inclined plane of the inner part of the filter cylinder forms an included angle of 15-20 degrees with the axial line.
5. The hydraulic machine hydraulic system oil filter of claim 1, wherein: the sedimentation barrel is screwed at the lower end of the filter cylinder through threads.
6. The hydraulic machine hydraulic system oil filter of claim 1, wherein: the filter screen at the front end of the oil outlet pipe orifice is 50-120 meshes.
7. The hydraulic machine hydraulic system oil filter of claim 1, wherein: and a transparent observation window is arranged on the sedimentation barrel.
8. The hydraulic machine hydraulic system oil filter of claim 7, wherein: and liquid level scale marks are arranged on the transparent observation window on the sedimentation barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821828450.XU CN211573922U (en) | 2018-11-07 | 2018-11-07 | Oil filter of hydraulic system of hydraulic machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821828450.XU CN211573922U (en) | 2018-11-07 | 2018-11-07 | Oil filter of hydraulic system of hydraulic machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211573922U true CN211573922U (en) | 2020-09-25 |
Family
ID=72521909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821828450.XU Expired - Fee Related CN211573922U (en) | 2018-11-07 | 2018-11-07 | Oil filter of hydraulic system of hydraulic machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211573922U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118023566A (en) * | 2024-02-02 | 2024-05-14 | 湖北万邦电机股份有限公司 | Surface punching equipment for motor shell preparation |
-
2018
- 2018-11-07 CN CN201821828450.XU patent/CN211573922U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118023566A (en) * | 2024-02-02 | 2024-05-14 | 湖北万邦电机股份有限公司 | Surface punching equipment for motor shell preparation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200925 Termination date: 20211107 |