Electromagnetic valve for removing burrs of cross holes of valve sleeve
By separating the inner hole from the cross hole and injection molding before drilling the cross hole, the problem of solenoid valve stuck under extremely small gaps is solved, the risk of burrs is reduced, and the processing material and stability of the product are improved.
Patent Information
- Application Number
- CN202421963636.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-14
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-08-14
AI Technical Summary
Existing solenoid valves are prone to valve stagnation under extremely small matching gaps, especially when there are burrs at the intersection holes, the probability of stagnation is extremely high.
Separate the inner hole from the cross hole, and add the injection molding solution of valve sleeve inner hole before the cross hole drilling process, fill the inner hole with high-strength PPS engineering plastic to eliminate the probability of burrs caused by hole breaking.
It effectively reduces the occurrence of cross-pore burrs, meets the requirements of small gap matching of valve sleeves and valve cores, and reduces the risk and probability of product stagnation.
Smart Images
Figure CN222596934U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electromagnetic valves, in particular to an electromagnetic valve for removing burrs from cross holes of a valve sleeve. Background Art
[0002] The solenoid valve used in automobile gearboxes is used to control the gear locking pressure and shifting. The solenoid valve needs to have a high-speed response and very low leakage (a pressure holding time of >120s is required after locking the pressure). Under the requirement of low leakage, the matching clearance between the valve sleeve and the valve core is required to be 1-2μm to meet the pressure holding time required by the product, and the valve cannot be stuck under the extremely small matching clearance; the probability of product sticking is very high under the extremely small matching clearance, especially when there are burrs at the cross hole position, the probability of sticking is extremely high. However, during the processing of the inner hole and the cross hole, the hole is broken, and burrs are easily generated at the intersection line of the inner hole. Utility Model Content
[0003] The utility model aims to solve the problems in the prior art and provides a solenoid valve for removing burrs from the cross holes of a valve sleeve.
[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme: a solenoid valve for removing burrs from the cross hole of a valve sleeve, comprising a plug, a plug-in, an enameled wire, a spring seat, a spring, a valve core, an O-ring 1, a valve sleeve, an O-ring 2, an O-ring 3, a front choke, a stainless steel gasket, a push rod, an armature, a magnetic isolation sleeve, an inner hole, and a cross hole,
[0005] A plug is provided in the plug, an enameled wire is installed on the right side of the plug, a magnetic isolation sleeve is installed on the inner side of the enameled wire, an armature is installed in the magnetic isolation sleeve, a push rod is installed in the middle of the armature, a stainless steel gasket is provided on the right side surface of the armature and is sleeved on the push rod, a front choke is installed on the right side of the stainless steel gasket, the push rod passes through the armature and the front choke in sequence, the right end of the push rod is in contact with the valve core, a spring is sleeved on the right end of the valve core, a spring seat is provided on the right side of the spring, a valve sleeve is provided on the outside of the valve core, and O-ring three, O-ring two and O-ring one are provided in sequence from left to right at the cross hole on the outside of the valve sleeve.
[0006] Furthermore, the push rod, the valve core and the midline of the spring are on the same horizontal line.
[0007] Furthermore, an inner hole is provided inside the valve sleeve in the horizontal direction, a valve core is installed in the inner hole, and a cross hole is opened in the valve sleeve in the vertical direction of the inner hole. The inner hole and the cross hole of the valve sleeve are set to separate processing modes. After the inner hole of the valve sleeve is opened, injection molding is performed inside the inner hole, and then the cross hole is drilled. When drilling the cross hole, the drill tip should be drilled to a position of 1-2 mm in the plastic area.
[0008] Furthermore, the injection molding material is set to be PPS engineering plastic.
[0009] Compared with the prior art, the advantages and positive effects of the utility model are: the solenoid valve for removing burrs from the cross holes of the valve sleeve processes the inner hole and the cross hole separately, and adds a scheme of injection molding of the inner hole of the valve sleeve before drilling the cross hole. During the drilling process, because the inner hole is filled with high-strength PPS engineering plastic, the probability of burrs generated at the intersection line of the inner hole during the hole breaking process is eliminated, thereby providing good processing materials for subsequent processing steps; an injection molding mold is provided, which is suitable for batch production of products; after the burrs on the cross holes are reduced, the small clearance matching requirements of the valve sleeve and the valve core can be better met, and the risk and probability of product jamming can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the structure of the utility model;
[0011] Figure 2 This is a schematic diagram of the fine processing of the inner hole of the valve sleeve of the utility model;
[0012] Figure 3 This is a schematic diagram of the injection molding of the inner hole of the valve sleeve of the utility model;
[0013] Figure 4 This is a schematic diagram of the cross hole drilling process of the injection molded parts of the utility model;
[0014] Figure 5 The utility model is a schematic diagram of taking out the injection-molded PPS GF60 plastic and inner hole reaming and honing.
[0015] Legend: 1. Plug, 2. Plug-in, 3. Enameled wire, 4. Spring seat, 5. Spring, 6. Valve core, 7. O-ring one, 8. Valve sleeve, 9. O-ring two, 10. O-ring three, 11. Front choke, 12. Stainless steel gasket, 13. Push rod, 14. Armature, 15. Magnetic isolation sleeve, 16. Inner hole, 17. Cross hole. DETAILED DESCRIPTION
[0016] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.
[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.
[0018] like Figure 1As shown, the utility model provides a solenoid valve for removing burrs from cross holes of a valve sleeve, comprising a plug 1, a plug 2, an enameled wire 3, a spring seat 4, a spring 5, a valve core 6, an O-ring 1 7, a valve sleeve 8, an O-ring 2 9, an O-ring 3 10, a front choke 11, a stainless steel gasket 12, a push rod 13, an armature 14, a magnetic isolation sleeve 15, an inner hole 16, and a cross hole 17.
[0019] A plug 2 is provided in the plug 1, an enameled wire 3 is installed on the right side of the plug 1, a magnetic isolation sleeve 15 is installed on the inner side of the enameled wire 3, an armature 14 is installed in the magnetic isolation sleeve 15, a push rod 13 is installed in the middle of the armature 14, a stainless steel gasket 12 sleeved on the push rod 13 is provided on the right side of the armature 14, a front choke 11 is installed on the right side of the stainless steel gasket 12, the push rod 13 passes through the armature 14 and the front choke 11 in sequence, the right end of the push rod 13 contacts the valve core 6, the right end of the valve core 6 is sleeved with a spring 5, a spring seat 4 is provided on the right side of the spring 5, a valve sleeve 8 is provided on the outside of the valve core 6, and an O-ring three 10, an O-ring two 9 and an O-ring one 7 are provided in sequence at the cross hole 17 on the outside of the valve sleeve 8 from left to right; the push rod 13, the valve core 6 and the midline of the spring 5 are on the same horizontal line.
[0020] like Figure 2-5 As shown, the valve sleeve 8 is provided with an inner hole 16 in the horizontal direction, and the valve core 6 is installed in the inner hole 16. The valve sleeve 8 is provided with a cross hole 17 in the vertical direction of the inner hole 16. The inner hole 16 and the cross hole 17 of the valve sleeve 8 are set to separate processing modes. After the inner hole 16 of the valve sleeve 8 is opened, injection molding is performed inside it, and then the cross hole 17 is drilled. When drilling the cross hole 17, the drill tip should be drilled to a position of 1-2 mm in the plastic area; the injection molding material is set to high-strength PPS engineering plastic.
[0021] The specific processing steps are as follows:
[0022] 1. Valve sleeve machining, only the inner hole of the valve sleeve is machined, and the cross hole is not machined;
[0023] 2. The inner hole of the valve sleeve is injection molded, and the material is engineering plastics with 60% glass fiber added;
[0024] 3. After injection molding, cross-hole drilling is performed, and then the injection-molded PPS GF30 plastic is taken out;
[0025] 4. Ream and hone the inner hole, brush the middle hole with silicon carbide, and remove the micro burrs of the cross hole.
[0026] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.
Claims
1. A solenoid valve for removing burrs from a cross hole of a valve sleeve, comprising a plug (1), a plug-in (2), an enameled wire (3), a spring seat (4), a spring (5), a valve core (6), an O-ring 1 (7), a valve sleeve (8), an O-ring 2 (9), an O-ring 3 (10), a front choke (11), a stainless steel gasket (12), a push rod (13), an armature (14), a magnetic isolation sleeve (15), an inner hole (16), and a cross hole (17), characterized in that: The plug (1) is provided with a plug-in (2), an enameled wire (3) is installed on the right side of the plug (1), a magnetic isolation sleeve (15) is installed on the inner side of the enameled wire (3), an armature (14) is installed in the magnetic isolation sleeve (15), a push rod (13) is installed in the middle of the armature (14), a stainless steel gasket (12) sleeved on the push rod (13) is provided on the right side surface of the armature (14), and a front choke (11) is installed on the right side of the stainless steel gasket (12). ), the push rod (13) passes through the armature (14) and the front choke (11) in sequence, the right end of the push rod (13) contacts the valve core (6), the right end of the valve core (6) is sleeved with a spring (5), the right side of the spring (5) is provided with a spring seat (4), the outer side of the valve core (6) is provided with a valve sleeve (8), and the outer cross hole (17) of the valve sleeve (8) is provided with O-ring three (10), O-ring two (9) and O-ring one (7) in sequence from left to right; An inner hole (16) is provided inside the valve sleeve (8) in the horizontal direction, a valve core (6) is installed in the inner hole (16), and a cross hole (17) is opened in the valve sleeve (8) in the vertical direction of the inner hole (16).
2. A solenoid valve for removing burrs from cross holes of a valve sleeve according to claim 1, characterized in that: The push rod (13), the valve core (6) and the spring (5) are on the same horizontal line of the midline.
3. The solenoid valve for removing burrs from cross holes of valve sleeve according to claim 1, characterized in that: The inner hole (16) and the cross hole (17) of the valve sleeve (8) are set in a separate processing mode. After the inner hole (16) of the valve sleeve (8) is opened, injection molding is performed inside the inner hole (16), and then the cross hole (17) is drilled. When drilling the cross hole (17), the drill tip should drill to a position of 1-2 mm from the plastic area.