阅读说明：本技术 一种耐高压旁路超微过滤器 (High pressure resistant bypass ultra-fine filter ) 是由 樊月昇 于 2020-07-06 设计创作，主要内容包括：本发明涉及一种耐高压旁路超微过滤器,属于油液过滤技术领域,包括锅体和与其相配合的锅盖,锅体底部固定安装有进口接头和出口接头,锅体内开设有进口通道和出口通道,出口通道与进口通道之间安装有滤芯,滤芯内安装有中心螺杆,中心螺杆内开设有中心杆出油孔,中心螺杆一端与锅盖螺纹连接,另一端与进口通道螺纹连接,进口通道内安装有限流阀,出口通道内安装有溢流阀；本发明通过锅体设计有溢流阀和限流阀的减压设计,使得产品可应用于系统压力350bar以下的设备上,解决了市面上现有的旁路过滤器需要加装不同减压阀的问题,同时将锅体的筒体与底座分开设计,解决了大尺寸压铸存在的排气问题及报废率问题。(The invention relates to a high-pressure-resistant bypass ultra-micro filter, which belongs to the technical field of oil filtration and comprises a pot body and a pot cover matched with the pot body, wherein the bottom of the pot body is fixedly provided with an inlet joint and an outlet joint; according to the invention, the pressure reduction design of the overflow valve and the flow limiting valve is designed on the pot body, so that the product can be applied to equipment with the system pressure below 350bar, the problem that different pressure reducing valves are required to be additionally arranged on the existing bypass filter in the market is solved, and meanwhile, the cylinder body and the base of the pot body are separately designed, so that the problems of exhaust and rejection rate in large-size die casting are solved.)

1. The utility model provides a super microfilter of high pressure resistant bypass, includes pot body (1) and rather than matched with pot lid (2), its characterized in that: the utility model discloses a pot body, including pot body (1), pot body bottom fixed mounting have inlet joint (8) and outlet joint (9), seted up inlet channel (13) and outlet channel (22) in the pot body (1), install filter core (17) between outlet channel (22) and inlet channel (13), install central screw rod (4) in filter core (17), set up well core rod oil outlet (15) in central screw rod (4), central screw rod (4) one end and pot lid (2) threaded connection, the other end and inlet channel (13) threaded connection, install restriction valve (5) in inlet channel (13), install overflow valve (6) in outlet channel (22).

2. The high pressure tolerant bypass ultra fine filter of claim 1, wherein: the overflow valve (6) comprises an overflow valve body (26), a through hole (32) is formed in the overflow valve body (26), a steel ball (27) is installed in the through hole (32), a first spring (28) is installed on one side of the steel ball (27), an ejector block (29) is installed at one end, far away from the steel ball (27), of the first spring (28), the ejector block (29) is connected with the overflow valve body (26) through a first clamping spring (30), a first outlet hole (35) communicated with the through hole (32) is further formed in the overflow valve body (26), and the overflow valve body (26) is in threaded connection with the pot body (1); and a plug (7) in threaded connection with the pot body (1) is arranged outside the overflow valve (6), and a plug threaded hole (24) matched with the plug (7) is formed in the pot body (1).

3. The high pressure tolerant bypass ultra fine filter of claim 2, wherein: a first clamp spring groove (33) matched with the first clamp spring (30) is formed in the through hole (32), a second external thread (34) is arranged outside the overflow valve body (26), and a sealing gasket (31) is sleeved outside the overflow valve (26).

4. The high pressure tolerant bypass ultra fine filter of claim 1, wherein: the flow limiting valve (5) comprises a flow limiting valve body (36), a second pinhole (42) and a second outlet hole (44) communicated with the second pinhole are formed in the flow limiting valve body (36), a valve core (37) and a second spring (38) are installed in the second pinhole (42), the valve core (37) is sleeved outside the second spring (38), an inlet hole (46) is formed in the valve core (37), the valve core (37) is connected with the flow limiting valve body (36) through a second clamp spring (39), and the flow limiting valve body (36) is arranged in the inlet channel (13) and is in threaded connection with the flow limiting valve body.

5. The high pressure tolerant bypass ultra fine filter of claim 4, wherein: the second spring (38) is connected with the valve core (37) through a spring seat (40), a pressure reducing groove (41) is formed in the surface of the valve core (37), a second clamp spring groove (45) matched with the second clamp spring (39) is formed in the second needle hole (42), and a third external thread (43) is arranged outside the flow limiting valve body (36).

6. The high pressure tolerant bypass ultra fine filter of claim 1, wherein: seted up central screw hole (14) in entrance channel (13), central screw rod (4) outside is equipped with first external screw thread (16) with central screw hole (14) matched with, the outside cover of central screw rod (4) is equipped with fastening screw (3), fastening screw (3) upper end is run through pot lid (2) and is extended to the outside, fastening screw (3) outside cover is equipped with stainless steel mold insert (20), stainless steel mold insert (20) set up in pot lid (2), install combination sealing pad (21) between stainless steel mold insert (20) and central screw rod (4).

7. The high pressure tolerant bypass ultra fine filter of claim 1, wherein: support flow guide post (19) are installed to filter core (17) bottom, support flow guide post (19) outside and install closed angle (18).

8. The high pressure tolerant bypass ultra fine filter of claim 7 wherein: the inlet joint (8) is in threaded connection with the pot body (1), a first needle hole (12) is formed in the inlet joint (8), and an inlet threaded hole (11) matched with the inlet joint (8) is formed in the pot body (1); the outlet connector (9) is in threaded connection with the pot body (1), an outlet threaded hole (23) matched with the outlet connector (9) is formed in the pot body (1), and a fixing hole (25) is formed in the side face of the pot body (1).

9. The high pressure tolerant bypass ultra fine filter of claim 1, wherein: the utility model discloses a pot cover, including pot cover (2), cambered surface (49) are inside to be equipped with, fixed mounting has strengthening rib (48) on cambered surface (49), fixed mounting has lug water conservancy diversion post (47) on strengthening rib (48), pot cover (2) bottom side fixed mounting has T word lug (50), O type seal groove (51) have been seted up to T word lug (50) outside, install O type sealing washer (10) in O type seal groove (51).

10. The high pressure tolerant bypass ultra fine filter of claim 9, wherein: the pot body (1) comprises a cylinder body (52) and a base (53) fixedly installed at the bottom of the cylinder body (52), a pressure gauge (54) and an oil sensor (55) are installed on the cylinder body (52), and a pressure threaded hole matched with the pressure gauge (54) and a sensor installation hole matched with the oil sensor (55) are formed in the cylinder body (52).

Technical Field

The invention relates to the technical field of oil filtration, in particular to a high-pressure-resistant bypass ultrafine filter.

Background

When the lubricating oil and the hydraulic equipment of the mechanical equipment are used, the oil is kept clean, so that the abrasion of the mechanical equipment and the occurrence of faults can be reduced, and the maintenance and shutdown time is shortened. The clean oil can be prolonged in use, the use amount of new oil is reduced, and the generation of waste oil is also reduced. The oil pollution is one of the main reasons for accelerating mechanical abrasion and damage, so that when mechanical equipment is initially designed, an oil filter is designed in an oil system and is used for filtering a pollution medium in oil to improve the cleaning performance of the oil.

The precision and the pressure resistance value of a filter are designed according to the oil flow and the pressure required by a mechanical system in the conventional main line filtering system of mechanical equipment, the main line filtering problem is that the oil flow of the system must be ensured to be met, so the designed filtering precision is generally over 20 micrometers, the precision of the filter element can only filter larger particles, and the problem of oil pollution cannot be solved, and pollutants below 20 micrometers are the root cause of mechanical abrasion and oil deterioration. Because the pressure and the flow are reasons, the working pressure of the ultrafilter cannot exceed 8bar generally, so the ultrafilter cannot be used as a main line filter, and the existing bypass filter on the market cannot be directly installed in a high-pressure system of a main line and needs to be matched with different pressure reducing valves for use. The existing production process of the ultramicro filter is processed by integral die-casting molding, and has the problems that the exhaust problem is difficult to solve in the die-casting process due to large volume and thick partial area of the filter, the air holes (sand holes) exist in the die-cast product due to poor exhaust, the oil leakage is caused due to the influence on the sealing property, and the die-casting rejection rate is high.

Disclosure of Invention

The invention aims to provide a high-pressure-resistant bypass ultramicro filter to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a super microfilter of high pressure resistant bypass, includes the pot body and rather than matched with pot cover, pot body bottom fixed mounting has inlet joint and outlet joint, the internal import passageway and the exit channel of having seted up of pot, install the filter core between exit channel and the import passageway, install central screw rod in the filter core, set up well core rod oil outlet in the central screw rod, central screw rod one end and pot cover threaded connection, the other end and import passageway threaded connection, install the restriction valve in the import passageway, install the overflow valve in the exit channel.

As a further technical scheme of the invention: the overflow valve comprises an overflow valve body, a through hole is formed in the overflow valve body, a steel ball is mounted in the through hole, a first spring is mounted on one side of the steel ball, a top block is mounted at one end, away from the steel ball, of the first spring, the top block is connected with the overflow valve body through a first snap spring, a first outlet hole communicated with the through hole is further formed in the overflow valve body, and the overflow valve body is in threaded connection with the pot body; and a plug in threaded connection with the pot body is arranged outside the overflow valve, and a plug threaded hole matched with the plug is formed in the pot body.

As a further technical scheme of the invention: a first clamp spring groove matched with the first clamp spring is formed in the through hole, a second external thread is arranged outside the overflow valve body, and a sealing gasket is sleeved outside the overflow valve.

As a further technical scheme of the invention: the flow limiting valve comprises a flow limiting valve body, a second needle hole and a second outlet hole communicated with the second needle hole are formed in the flow limiting valve body, a valve core and a second spring are installed in the second needle hole, the valve core is sleeved outside the second spring, an inlet hole is formed in the valve core, the valve core is connected with the flow limiting valve body through a second snap spring, and the flow limiting valve body is arranged in the inlet channel and is in threaded connection with the inlet channel.

As a further technical scheme of the invention: the second spring is connected with the valve core through a spring seat, a pressure reduction groove is formed in the surface of the valve core, a second clamp spring groove matched with the second clamp spring is formed in the second needle hole, and a third external thread is arranged outside the flow-limiting valve body.

As a further technical scheme of the invention: the improved cooker cover is characterized in that a central threaded hole is formed in the inlet channel, first external threads matched with the central threaded hole are arranged on the outer portion of the central screw, a fastening screw is sleeved on the outer portion of the central screw, the upper end of the fastening screw penetrates through the cooker cover and extends to the outside, a stainless steel insert is sleeved on the outer portion of the fastening screw and arranged in the cooker cover, and a combined sealing gasket is arranged between the stainless steel insert and the central screw.

As a further technical scheme of the invention: the filter core bottom is installed and is supported the flow guide post, support the flow guide post outside and install the closed angle.

As a further technical scheme of the invention: the inlet joint is in threaded connection with the pot body, a first needle hole is formed in the inlet joint, and an inlet threaded hole matched with the inlet joint is formed in the pot body; the outlet connector is in threaded connection with the pot body, an outlet threaded hole matched with the outlet connector is formed in the pot body, and a fixing hole is formed in the side face of the pot body.

As a further technical scheme of the invention: the novel pot cover is characterized in that a cambered surface is arranged inside the pot cover, reinforcing ribs are fixedly mounted on the cambered surface, a bump flow guide column is fixedly mounted on the reinforcing ribs, a T-shaped bump is fixedly mounted on the side face of the bottom of the pot cover, an O-shaped sealing groove is formed in the outer portion of the T-shaped bump, and an O-shaped sealing ring is mounted in the O-shaped sealing groove.

As a further technical scheme of the invention: the pot body includes barrel and fixed mounting at the base of barrel bottom, install manometer and oily sensor on the barrel, be equipped with on the barrel with manometer matched with pressure screw hole and with oily sensor matched with sensor mounting hole.

Compared with the prior art, the invention has the beneficial effects that: the pressure reducing design of the overflow valve and the flow limiting valve is designed on the pot body, so that the product can be applied to equipment with the system pressure below 350bar, the problem that different pressure reducing valves are required to be additionally arranged on the existing bypass filter in the market is solved, and meanwhile, the problems of exhaust and rejection rate in large-size die casting are solved by separately designing the cylinder body and the base of the pot body.

Drawings

FIG. 1 is a cross-sectional view of a high pressure tolerant bypass microfilter;

FIG. 2 is a cross-sectional view of a mid-relief valve of the high pressure tolerant bypass microfilter;

FIG. 3 is a cross-sectional view of a middle restriction valve of a high pressure tolerant bypass ultrafilter;

FIG. 4 is a schematic structural diagram of a lid of the pressure-resistant bypass ultra-micro filter;

FIG. 5 is a schematic structural view of a high pressure resistant bypass ultrafilter.

In the figure: 1-pot body, 2-pot cover, 3-fastening screw, 4-central screw, 5-flow limiting valve, 6-overflow valve, 7-plug, 8-inlet joint, 9-outlet joint, 10-O-shaped sealing ring, 11-inlet threaded hole, 12-first pinhole, 13-inlet pipeline, 14-central threaded hole, 15-central rod oil outlet, 16-first external thread, 17-filter element, 18-sharp corner, 19-supporting column diversion, 20-stainless steel insert, 21-combined sealing gasket, 22-outlet pipeline, 23-outlet threaded hole, 24-plug threaded hole, 25-fixing hole, 26-overflow valve body, 27-steel ball, 28-first spring, 29-top block, 30-first snap spring, 14-central threaded hole, 15-central rod oil outlet, 14-central rod oil outlet, 27-first external thread, 17-filter element, 31-a sealing gasket, 32-a through hole, 33-a first clamp spring groove, 34-a second external thread, 35-a first outlet hole, 36-a flow limiting valve body, 37-a valve core, 38-a second spring, 39-a second clamp spring, 40-a spring seat, 41-a pressure reduction groove, 42-a second needle hole, 43-a third external thread, 44-a second outlet hole, 45-a second clamp spring groove, 46-an inlet hole, 47-a bump guide column, 48-a reinforcing rib, 49-an arc surface, 50-a T-shaped bump, 51-O-shaped sealing groove, 52-a cylinder body, 53-a base, 54-a pressure gauge and 55-an oil quality sensor.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.