CN203770000U - Double-nut fastening structure for hydraulic magnetic valves - Google Patents
Double-nut fastening structure for hydraulic magnetic valves Download PDFInfo
- Publication number
- CN203770000U CN203770000U CN201420096240.1U CN201420096240U CN203770000U CN 203770000 U CN203770000 U CN 203770000U CN 201420096240 U CN201420096240 U CN 201420096240U CN 203770000 U CN203770000 U CN 203770000U
- Authority
- CN
- China
- Prior art keywords
- control valve
- nut
- fastening structure
- iron core
- static iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 22
- 230000003068 static effect Effects 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 11
- 238000002485 combustion reaction Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 6
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model provides a double-nut fastening structure for hydraulic magnetic valves. The fastening structure comprises a lower nut and an upper nut, wherein the lower nut compresses an adjusting ring and a control valve body onto a control valve base through threaded connection; the upper nut compresses a static iron core, a control valve spring base, a control valve spring, an armature and a control valve plunger piston onto the lower nut through threaded connection. The lower nut with a relatively large tightening moment can ensure the air tightness of a control valve assembly, and the upper nut with a relatively small tightening moment can protect the static iron core from stress deformation, so that the control valve assembly can normally operate; the fastening structure is suitable for the hydraulic magnetic valve structure of pressure control valves, flow control valves, direction control valves and the like.
Description
Technical field
The utility model relates to a kind of double nut fastening structure of hydraulic buttery valve, belongs to internal-combustion engine field of electric control.
Background technique
Fuel injection system is to make fuel oil reach sufficiently high pressure, according to the operating mode of internal-combustion engine, according to certain rules, a certain amount of oil burning jet is injected to the indoor applicable position of combustion in IC engine, thereby make the combustion process of internal-combustion engine optimum, therefore, fuel injection system is the core system of internal-combustion engine.
Along with the development of electronic control technology, New Electronic Control Fuel Injection System replaces traditional mechanical type fuel injection system gradually.Wherein, electronically controlled unit pump is second generation electric control fuel oil jet system, adopts the arrangement of cylinder one pump.It is advantageous that and there is fuel injection quantity and the flexible controlled performance characteristic of injection timing; In system, between fuel pressure circulation, set up separately fast response time; The highest jet pressure that can produce more than 2000bar; Life-span is long, good reliability.The main application of electronically controlled unit pump is medium and heavy diesel engine.
Control valve fastening nut on electronically controlled unit pump plays control valve is pressed to the object on control valve seat.At present, the control valve nut on electronically controlled unit pump adopts single nut fastening structure, as shown in Figure 1.For single nut fastening structure, the too small object that does not have seal control valve of screw-down torque, thus cause control valve oil impregnate or leakage of oil; The screw-down torque of nut is excessive by the static iron core distortion making in control valve, thereby causes control valve normally to work.Therefore, control valve fastening nut screw-down torque on electronically controlled unit pump need strict limit and when system dismounting strict implement, once there is operate miss, will cause the inefficacy of electronically controlled unit pump assembly.
Summary of the invention
The utility model proposes based on above control valve of electrical control monoblock pump fastening nut structure.For above prior art, the utility model provides a kind of double nut fastening structure of hydraulic buttery valve, thereby solve current electronically controlled unit pump, adopts single nut fastening structure easily to make static iron core compressive deformation cause the problem of electronically controlled unit pump assembly failure.
In the double nut fastening structure of a kind of hydraulic buttery valve of the utility model, described double nut fastening structure is comprised of upper cap nut and lower nut, lower nut is threaded connection to be connected with control valve seat and to pass through straight mouth structure and compresses control valve body, and upper cap nut is threaded connection to be connected with lower nut and to pass through straight mouth structure and compresses static iron core.
Compared with prior art, the beneficial effects of the utility model are:
(1) control valve body and adjustment ring are by lower nut compressing to control valve seat, and the screw-down torque that lower nut is larger can guarantee the sealing of control valve assembly.
(2) static iron core, control valve spring seat, control valve spring, armature and control valve plunger are compacted on lower nut by upper cap nut, upper cap nut screw-down torque only guarantees locking, now can guarantee that static iron core does not deform, thereby meet the normal work of control valve assembly.
(3) be applicable to the hydraulic electromagnetic valve arrangements such as pressure controlled valve, flow control valve and position control valve.
To sum up, the utility model provides a kind of double nut fastening structure of hydraulic buttery valve, described double nut fastening structure is comprised of lower nut and upper cap nut, lower nut is threaded connection adjustment ring and control valve body is compacted on control valve seat, and upper cap nut is threaded connection static iron core, control valve spring seat, control valve spring, armature and control valve plunger are compacted on lower nut.The lower nut that screw-down torque is larger can guarantee the sealing of control valve assembly, and the upper cap nut that screw-down torque is less can guarantee that stress deformation does not occur static iron core, thereby meets the normal work of control valve assembly.Described double nut fastening structure is applicable to the hydraulic electromagnetic valve arrangements such as pressure controlled valve, flow control valve and position control valve.
Below with reference to the drawings and specific embodiments, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 adopts the control valve assembly schematic diagram of single nut fastening structure at present.
Fig. 2 is the control valve assembly structure schematic diagram of application double nut fastening structure.
In figure:
1---static iron core 2---valve spring retainer 3 processed---upper cap nut
4---the lower nuts of control valve spring 5---armature 6---
7---adjustment ring 8---control valve plunger 9---oil circuits
10---oil circuit gap 11---control valve body 12---valve seats processed
13---oil circuit 14---locating stud
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
As shown in Figure 2, present embodiment relates to a kind of double nut fastening structure of hydraulic buttery valve, and described double nut fastening structure is comprised of upper cap nut 3 and lower nut 6.Control valve seat 12 is that integral type is arranged with the monomer pump housing, control valve body 11 is located and is compacted on control valve seat 12 by being threaded of lower nut 6 with adjustment ring 7 with control valve seat 12 by locating stud 14, static iron core 1 is compacted on lower nut 6 by being threaded of upper cap nut 3, armature 5 is coaxially arranged in static iron core 1 and control valve body 11 inside with control valve plunger 8, and control valve spring 4 is by control valve spring seat 2 and control valve plunger 8 location.On control valve body 11 and control valve seat 12, be furnished with the in-line 9 being interconnected, be furnished with oil circuit 13 on control valve seat 12,11 of control valve plunger 8 and control valve bodies are arranged oil circuit gap 10.
The assembly process of present embodiment is as follows: with electronically controlled unit pump body be on the control valve seat 12 arranged of integral type by locating stud 14 assembling control valve bodies 11, locating stud 14 can guarantee that in-line 9 connects at control valve body 11 and control valve seat 12.Equipment adjustment ring 7 on control valve body 11, is compacted on control valve seat 12 by being threaded of lower nut 6, and wherein descending needs to assemble O type circle between nut 6 and control valve seat 12 and seal.In control valve body 11, assemble successively coaxial fastening armature 5 and control valve plunger 8, control valve spring 4, control valve spring seat 2 and static iron core 1, and be compacted on lower nut 6 by being threaded of upper cap nut 3, at upper cap nut 3 respectively and between static iron core 1, lower nut 6, need to assemble O type circle and seal, thus complete the assembling of control valve assembly.
Working principle of the present utility model is as described below:
(1) function of lower nut 6 is by adjustment ring 7, control valve body 11 to be compacted on control valve seat 12, and guarantee that the suitable matching gap of control valve assembly parts, larger lower nut screw-down torque can guarantee the oil circuit sealing of 12 of control valve body 11 bottoms and control valve seats.The matching gap of control valve assembly parts can be adjusted by the different-thickness of adjustment ring 7, and it adjusts principle is to guarantee when static iron core 1 receives effective current signal that armature 5 seals completely with static iron core adhesive completely, oil circuit gap 10 and when the current signal of static iron core 1 reception armature 5 and static iron core 1 can depart from completely, open completely in oil circuit gap 10 while being zero.The screw-down torque of lower nut 6 is controlled at 30-50Nm.
(2) function of upper cap nut 3 is that static iron core 1 is compacted on lower nut 6, and less upper cap nut screw-down torque can guarantee that stress deformation does not occur static iron core 1, thereby meets the normal work of control valve assembly.The screw-down torque of upper cap nut 3 is controlled at 10-20Nm.
Claims (4)
1. the double nut fastening structure of a hydraulic buttery valve, it is characterized in that comprising: described double nut fastening structure is comprised of upper cap nut (3) and lower nut (6), lower nut (6) is threaded connection adjustment ring (7) and control valve body (11) is compacted to control valve seat (12) above, and upper cap nut (3) is threaded connection static iron core (1), control valve spring seat (2), control valve spring (4), armature (5) and control valve plunger (8) are compacted on lower nut (6).
2. the double nut fastening structure of hydraulic buttery valve according to claim 1, is characterized in that, the screw-down torque of lower nut (6) is controlled at 30-50Nm, can guarantee the sealing of control valve assembly.
3. the double nut fastening structure of hydraulic buttery valve according to claim 1, is characterized in that, the screw-down torque of upper cap nut (3) is controlled at 10-20Nm, can guarantee that stress deformation does not occur static iron core, thereby meets the normal work of control valve assembly.
4. the double nut fastening structure of hydraulic buttery valve according to claim 1, is characterized in that, is applicable to the hydraulic electromagnetic valve arrangements such as pressure controlled valve, flow control valve and position control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420096240.1U CN203770000U (en) | 2014-03-04 | 2014-03-04 | Double-nut fastening structure for hydraulic magnetic valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420096240.1U CN203770000U (en) | 2014-03-04 | 2014-03-04 | Double-nut fastening structure for hydraulic magnetic valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770000U true CN203770000U (en) | 2014-08-13 |
Family
ID=51287198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420096240.1U Expired - Lifetime CN203770000U (en) | 2014-03-04 | 2014-03-04 | Double-nut fastening structure for hydraulic magnetic valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770000U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108474338A (en) * | 2015-10-19 | 2018-08-31 | 德尔福知识产权有限公司 | Digital inlet valve for high pressure fuel pump |
-
2014
- 2014-03-04 CN CN201420096240.1U patent/CN203770000U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108474338A (en) * | 2015-10-19 | 2018-08-31 | 德尔福知识产权有限公司 | Digital inlet valve for high pressure fuel pump |
| US10724484B2 (en) | 2015-10-19 | 2020-07-28 | Delphi Technologies Ip Limited | Digital inlet valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180817 Address after: 053400 No. 94 Ningwu West Road, Wuyi Economic Development Zone, Hengshui, Hebei Patentee after: Hebei bit Power Technology Co.,Ltd. Address before: 100081 Beijing Haidian District Zhongguancun South Street 5 1 District 689 Building 2 floors 215 Patentee before: BEIJING BITEC Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 596, Xingwang Road, Wuyi County, Hengshui City, Hebei Province 053400 Patentee after: Hebei bit Power Technology Co.,Ltd. Address before: 053400 No. 94 Ningwu West Road, Wuyi Economic Development Zone, Hengshui, Hebei Patentee before: Hebei bit Power Technology Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 596, Xingwang Road, Wuyi County, Hengshui City, Hebei Province 053400 Patentee after: Hebei Zhongju Machinery Manufacturing Co.,Ltd. Address before: No. 596, Xingwang Road, Wuyi County, Hengshui City, Hebei Province 053400 Patentee before: Hebei bit Power Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |
|
| CX01 | Expiry of patent term |