Split type hydraulic regulating valve

Abstract

The utility model relates to a split type hydraulic regulating valve which comprises an electromagnet assembly and a valve assembly driven and controlled by the electromagnet assembly, and a valve seat of the valve assembly comprises a lower valve seat (9) and an upper valve seat (10). The lower valve seat (9) is connected to a pole shoe (5) of the electromagnet assembly, the upper valve seat (10) is inserted into a valve hole in the top of the lower valve seat (9), the large-diameter end of the valve element (11) is located in the valve hole of the lower valve seat (9), and the small-diameter end of the valve element (11) is located in a valve hole of the upper valve seat (10). The split type hydraulic regulating valve has the advantage of being convenient and fast to machine.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of hydraulic regulating valves, in particular to a kind of hydraulic regulating valves with split structure valve seat, belong to valve technical field. BACKGROUND

[0002] Currently, the structure of conventional hydraulic regulating valve is as shown in Figure 2 The valve core for proportional control has size section outer diameter structure, and since the application environment of conventional hydraulic regulating valve is simple, the hardness of valve seat material is not required, so even if the step hole structure matched with valve core with size section outer diameter is processed in the valve cavity of valve seat, it can still meet the demand. However, when the valve needs to be applied in harsh conditions, customers have higher requirements for the hardness of valve seat, so when the applicant processes the step hole, it is found that due to the improvement of hardness, the coaxiality processing precision of step hole is difficult to guarantee the design requirement, and more seriously, when quenching after step hole processing is completed, the size hole of step hole cannot guarantee the coaxiality due to the deformation caused by quenching. Therefore, it is urgent to redesign a hydraulic regulating valve that can meet the requirements. SUMMARY

[0003] The utility model aims at overcoming the above-mentioned insufficient, provide a kind of split hydraulic regulating valve that is easy and fast to process, by the valve seat is set to split structure and is matched with the two section diameters of valve core respectively, greatly reduce the requirement to processing precision, simplify processing difficulty, improve processing effect, and help to improve the yield after processing.

[0004] The utility model aims at overcoming the above-mentioned insufficient, provide a kind of split hydraulic regulating valve that is easy and fast to process, by the valve seat is set to split structure and is matched with the two section diameters of valve core respectively, greatly reduce the requirement to processing precision, simplify processing difficulty, improve processing effect, and help to improve the yield after processing.

[0005] A kind of split hydraulic regulating valve, it includes electromagnet assembly, and valve assembly driven and controlled by electromagnet assembly, the valve seat of the valve assembly includes lower valve seat and upper valve seat;Lower valve seat is connected on the pole shoe of electromagnet assembly, upper valve seat is inserted in the top valve hole of lower valve seat, the large diameter end of valve core is located in the valve hole of lower valve seat, the small diameter end of valve core is located in the valve hole of upper valve seat.

[0006] Preferably, the top of upper valve seat is outwardly horizontally protruded and provided with annular structure flange structure, the flange structure is hung on the top surface of lower valve seat.

[0007] Preferably, the hole diameter of valve hole of lower valve seat is equal to match the outer diameter of large diameter end of valve core, the hole diameter of valve hole of upper valve seat is equal to match the outer diameter of small diameter end of valve core, the outer diameter of upper valve seat is equal to match the hole diameter of valve hole of lower valve seat.

[0008] Preferably, spring seat is embedded in the bottom of lower valve seat, the bottom of spring located in the valve hole of lower valve seat is installed on spring seat, and the top of spring is in contact with the bottom of large diameter end of valve core.

[0009] Preferably, the magnetic shield sleeve of the electromagnet assembly is sleeved on the pole shoe, the moving iron core is slidingly arranged in the magnetic shield sleeve, the push rod fixedly connected to the moving iron core passes through the through hole of the pole shoe and is in contact with the valve core of the valve assembly, the coil assembly is sleeved outside the magnetic shield sleeve, and the lead-out wire of the coil assembly is connected to the terminal and then injection-molded to form the plug-in part wrapping the entire coil assembly.

[0010] Preferably, the push rod is provided with a through hole penetrating upward and downward, and the push rod is provided with a through hole communicating with the through hole.

[0011] Preferably, the moving iron core is sleeved with a shaft sleeve one between the outer wall of the moving iron core and the inner wall of the magnetic shield sleeve, and the push rod is sleeved with a shaft sleeve two between the push rod and the through hole of the pole shoe.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The utility model discloses the valve seat is designed as the split type structure of lower valve seat and upper valve seat, thereby making lower valve seat and upper valve seat respectively process into equal with the large diameter end and small diameter section of valve core, and the split processing greatly reduces the requirement to machining precision, simplifies processing operation, also improves the yield of processing. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic drawing of a split type hydraulic regulating valve of the utility model.

[0015] Figure 2 It is the structure schematic drawing of a conventional hydraulic regulating valve.

[0016] Among them:

[0017] Magnetic shield sleeve 1, coil assembly 2, plug-in part 3, moving iron core 4, pole shoe 5, push rod 6, shaft sleeve one 7, shaft sleeve two 8, lower valve seat 9, upper valve seat 10, valve core 11, spring seat 12, spring 13. PREFERRED EMBODIMENT

[0018] See Figure 1The utility model relates to a kind of split type hydraulic regulating valve, including electromagnet assembly, and the valve assembly driven and controlled by electromagnet assembly, the electromagnet assembly includes magnetic shield sleeve 1, coil assembly 2, plug connector 3, moving iron core 4, pole shoe 5 and push rod 6, magnetic shield sleeve 1 is assembled on pole shoe 5, moving iron core 4 is slidably arranged in magnetic shield sleeve 1, and moving iron core 4 is assembled with shaft sleeve one 7, shaft sleeve one 7 is located between the outer wall of moving iron core 4 and the inner wall of magnetic shield sleeve 1, the push rod 6 fixedly connected on moving iron core 4 passes through the perforation of pole shoe 5 and is in contact with the valve core of valve assembly, the center of push rod 6 is provided with a through hole that penetrates up and down, and the sidewall of push rod 6 is provided with through hole that is communicated with through hole, to avoid oil entering between moving iron core 4 and pole shoe 5, ensure oil pressure balance, to ensure that moving iron core 4 and pole shoe 5 do not occur adhesion when switching, ensure the timeliness of response, and push rod 6 is assembled with shaft sleeve two 8, shaft sleeve two 8 is located between push rod 6 and the perforation of pole shoe 5;The coil assembly 2 is assembled outside magnetic shield sleeve 1, and the terminal of coil assembly 2 is connected after injection molding with plug connector 3 that wraps entire coil assembly 2.

[0019] The valve assembly includes lower valve seat 9, upper valve seat 10, valve core 11, spring seat 12 and spring 13, the lower valve seat 9 is connected with pole shoe 5, the upper valve seat 10 is inserted into the top valve hole of lower valve seat 9, and the top of upper valve seat 10 is provided with the flange structure of annular structure outwardly protruding, the flange structure is hung on the top surface of lower valve seat 9, so as to limit the position of upper valve seat 10, the large diameter end of valve core 11 is located in the valve hole of lower valve seat 9, and the small diameter end of valve core 11 is located in the valve hole of upper valve seat 10, so as to divide the integral structure of valve seat into split type structure of lower valve seat 9 and upper valve seat 10, so that processing is more convenient, at this time, when processing is separated, only the hole diameter of the valve hole of lower valve seat 9 is matched with the outer diameter of the large diameter end of valve core 11, and the hole diameter of the valve hole of upper valve seat 10 is matched with the outer diameter of the small diameter end of valve core 11, so that the requirement for machining precision is greatly reduced.

[0020] In addition: it needs to be noted that the above specific embodiment is only an optimization scheme of the patent, and any change or improvement made by the person skilled in the art according to the above concept is within the protection scope of the patent.

Claims

1. A split hydraulic control valve comprising an electromagnet assembly and a valve assembly driven and controlled by the electromagnet assembly, characterized in that: The valve seat of the valve assembly comprises a lower valve seat (9) and an upper valve seat (10); the lower valve seat (9) is connected to the pole shoe (5) of the electromagnet assembly, the upper valve seat (10) is inserted into the top valve hole of the lower valve seat (9), the large-diameter end of the valve core (11) is located in the valve hole of the lower valve seat (9), and the small-diameter end of the valve core (11) is located in the valve hole of the upper valve seat (10).

2. The split hydraulic control valve of claim 1, wherein: The top of the upper valve seat (10) is outwardly and horizontally protruded to form a ring-shaped flange structure, which is hung on the top surface of the lower valve seat (9).

3. The split hydraulic control valve of claim 1, wherein: The hole diameter of the valve hole of the lower valve seat (9) is equal to the outer diameter of the large-diameter end of the valve core (11), the hole diameter of the valve hole of the upper valve seat (10) is equal to the outer diameter of the small-diameter end of the valve core (11), and the outer diameter of the upper valve seat (10) is equal to the hole diameter of the valve hole of the lower valve seat (9).

4. The split hydraulic control valve of claim 1, wherein: The bottom of the lower valve seat (9) is embedded with a spring seat (12), the bottom of the spring (13) located in the valve hole of the lower valve seat (9) is installed on the spring seat (12), and the top of the spring (13) is in contact with the bottom of the large-diameter end of the valve core (11).

5. The split hydraulic control valve of claim 1, wherein: The magnetic isolation sleeve (1) of the electromagnet assembly is sleeved on the pole shoe (5), the moving iron core (4) is slidingly arranged in the magnetic isolation sleeve (1), the push rod (6) fixedly connected to the moving iron core (4) passes through the through hole of the pole shoe (5) and is in contact with the valve core of the valve assembly, the coil assembly (2) is sleeved outside the magnetic isolation sleeve (1), and the lead-out wire of the coil assembly (2) is connected to the terminal after injection molding to form the plug-in part (3) wrapping the entire coil assembly (2).

6. The split hydraulic control valve of claim 5, wherein: The push rod (6) is provided with a through hole penetrating upward and downward, and the side wall of the push rod (6) is provided with a via hole communicating with the through hole.

7. The split hydraulic control valve of claim 5, wherein: The moving iron core (4) is sleeved with a shaft sleeve one (7) between the outer wall of the moving iron core (4) and the inner wall of the magnetic isolation sleeve (1), and the push rod (6) is sleeved with a shaft sleeve two (8) between the push rod (6) and the through hole of the pole shoe (5). The moving iron core (4) is sleeved with a shaft sleeve one (7) between the outer wall of the moving iron core (4) and the inner wall of the magnetic isolation sleeve (1), and the push rod (6) is sleeved with a shaft sleeve two (8) between the push rod (6) and the through hole of the pole shoe (5).

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