CN204827741U - A section bar rail for high pressure common rail system - Google Patents
A section bar rail for high pressure common rail system Download PDFInfo
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- CN204827741U CN204827741U CN201520510438.4U CN201520510438U CN204827741U CN 204827741 U CN204827741 U CN 204827741U CN 201520510438 U CN201520510438 U CN 201520510438U CN 204827741 U CN204827741 U CN 204827741U
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- oil pipe
- rail
- hole
- rail body
- high pressure
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Abstract
The utility model relates to a section bar rail of high pressure common rail system, including rail body and oil pipe nut, its characterized in that: rail body one end is equipped with an axial connecting hole, and rail body is last to be equipped with a plurality of radial connecting holes, the connecting hole is including integrative oilhole, taper hole and the screw hole that link up, the oilhole is said with store oil and is communicate, taper hole and high pressure fuel pipe's the first adaptation of fusiformis, be equipped with the internal thread on the inner wall of screw hole, oil pipe nut dress is overhead in high -pressure oil pipe's fusiformis, but oil pipe nut free rotation nevertheless can't deviate from, be equipped with the external screw thread on the outer wall of oil pipe nut, the oil pipe nut with screw hole threaded connection presses high pressure fuel pipe's fusiformis head in the taper hole. The utility model discloses simple structure, reasonable in design adopts cold -drawing section bar preparation rail body, does not need precision forging technology, can reduce the blank cost by a wide margin.
Description
Technical field
The utility model relates to the component in diesel engine high-pressure co-rail system, and specifically a kind of profile rail for high pressure co-rail system, belongs to diesel-engine equipment technical field.
Background technique
The rail of diesel engine high-pressure co-rail system is hollow tubular metallic body, and high-pressure diesel for accepting and storing the pressure that provided by the high pressure oil pump diesel oil up to 140 ~ 200Mpa, then is supplied to oil sprayer by it.Rail is connected with high pressure oil pump with one or two high-pressure oil pipes, is connected with the oil sprayer of every cylinder with the same number of high-pressure oil pipe of cylinder.
In prior art, the structure of rail as shown in Figure 1 and Figure 2, it comprises rail body 1 and oil pipe nut 2, axial store oil road 4 is provided with in rail body 1, rail body 1 one end is provided with the cylinder connecting head 5 of an axis, rail body 1 is provided with the cylinder connecting head 5 of multiple radial direction, and rail body 1 the other end installs the pressure transducer 8 be communicated with store oil road 4; The center of described cylinder connecting head 5 is provided with attachment hole, and described attachment hole comprises the through oilhole 6 of one and taper hole 7, and described oilhole 6 is communicated with store oil road 4, and described taper hole 7 is adaptive with the fusiformis head of high-pressure oil pipe 3; The outer wall of described cylinder connecting head 5 is processed with outside thread, described oil pipe nut 2 is contained on the fusiformis head of high-pressure oil pipe 3, oil pipe nut 2 can rotate freely but cannot deviate from, oil pipe oil pipe nut 2 is connected on the outside thread of cylinder connecting head 5 by its internal thread, the fusiformis head of high-pressure oil pipe 3 is pressed in described taper hole 7, to ensure sealing.Owing to rail being not only provided with the cylinder connecting head 5 of several radial directions, also be provided with the mounting bracket 9 be connected with motor, rail bears high pressure again, so rail can only adopt precision forging technology, manufacture with the precision forging equipment of costliness, the mould loss in actual manufacture process and the energy consumption of Forge Heating process cause the cost of production of rail very high.
Summary of the invention
The utility model is a kind of profile rail for high pressure co-rail system, and its structure is simple, reasonable in design, adopts cold drawn section bar to make rail body, does not need precision forging technology, can significantly reduce blank cost.
Technological scheme according to the utility model provides: the profile rail of high pressure co-rail system, comprise rail body and oil pipe nut, it is characterized in that: described rail body one end is provided with the attachment hole of an axis, rail body is provided with the attachment hole of multiple radial direction, described attachment hole comprises the through oilhole of one, taper hole and tapped hole, described oilhole is communicated with store oil road, the fusiformis head of described taper hole and high-pressure oil pipe is adaptive, the inwall of described tapped hole is provided with internal thread, described oil pipe nut is contained on the fusiformis head of high-pressure oil pipe, oil pipe nut can rotate freely but cannot deviate from, the outer wall of oil pipe nut is provided with outside thread, described oil pipe nut is threaded with described tapped hole, is pressed in described taper hole by the fusiformis head of high-pressure oil pipe.
As further improvement of the utility model, described rail body adopts cold drawn shape extrusion to make.
As further improvement of the utility model, described rail body one end is provided with the pressure transducer be communicated with store oil road.
As further improvement of the utility model, described rail body is provided with the mounting hole for being connected with motor.
compared with prior art, tool has the following advantages the utility model:
1, the utility model structure is simple, and reasonable in design, oil pipe nut is mounted in tapped hole, is entirely surrounded by rail body, is not easy dilatancy and unclamps under High Pressure; Rail body can adopt cold drawn section bar to be made, and does not need precision forging technology, and blank cost is only equivalent in precision forging rail body 15 ~ 20%.
2, different high pressure volumes or mounting hole distance are required, the cold drawn section bar of applicable length can be cut according to the actual requirements, and bore mounting hole in the position be applicable to, eliminate die cost, shorten new product development cycle.
3, under the same diameter of thread, the sexangular head diameter on oil pipe nut is little, cost of material saving.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing rail.
Fig. 2 is the A-A face sectional view in Fig. 1.
Fig. 3 is the structural representation of the utility model embodiment.
Fig. 4 is the B-B face sectional view in Fig. 3.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As Fig. 3, shown in Fig. 4, the profile rail of the high pressure co-rail system in embodiment mainly comprises rail body 1 and oil pipe nut 2, described rail body 1 one end is provided with the attachment hole of an axis, rail body 1 is provided with the attachment hole of multiple radial direction, described attachment hole comprises the through oilhole 6 of one, taper hole 7 and tapped hole 10, described oilhole 6 is communicated with store oil road 4, described taper hole 7 is adaptive with the fusiformis head of high-pressure oil pipe 3, the inwall of described tapped hole 10 is provided with internal thread, described oil pipe nut 2 is contained on the fusiformis head of high-pressure oil pipe 3, oil pipe nut 2 can rotate freely but cannot deviate from, the outer wall of oil pipe nut 2 is provided with outside thread, described oil pipe nut 2 is threaded with described tapped hole 10, is pressed in described taper hole 7 by the fusiformis head of high-pressure oil pipe 3.In this taper hole 7, fusiformis head and taper hole 7 are linear contact lay, and the resiliently deformable that High Voltage produces makes them fit tightly, to ensure high pressure sealing.
As shown in Figure 3, Figure 4, described oil pipe nut 2 is mounted in tapped hole 10, is entirely surrounded by rail body 1, is not easy dilatancy and unclamps under High Pressure.Different high pressure volumes or mounting hole distance are required, the cold drawn section bar of applicable length can be cut according to the actual requirements, and hole in the position be applicable to.
As shown in Figure 3, Figure 4, control to realize automated high-precision, described rail body 1 one end is provided with the pressure transducer 8 be communicated with store oil road 4.Described rail body 1 is provided with the mounting hole 11 for being connected with motor, and rail body 1 is connected by mounting hole 11 with between motor.
Claims (4)
1. the profile rail of high pressure co-rail system, comprise rail body (1) and oil pipe nut (2), it is characterized in that: described rail body (1) one end is provided with the attachment hole of an axis, rail body (1) is provided with the attachment hole of multiple radial direction, described attachment hole comprises the through oilhole (6) of one, taper hole (7) and tapped hole (10), described oilhole (6) is communicated with store oil road (4), described taper hole (7) is adaptive with the fusiformis head of high-pressure oil pipe (3), the inwall of described tapped hole (10) is provided with internal thread, described oil pipe nut (2) is contained on the fusiformis head of high-pressure oil pipe (3), oil pipe nut (2) can rotate freely but cannot deviate from, the outer wall of oil pipe nut (2) is provided with outside thread, described oil pipe nut (2) is threaded with described tapped hole (10), is pressed in described taper hole (7) by the fusiformis head of high-pressure oil pipe (3).
2. the profile rail of high pressure co-rail system as claimed in claim 1, is characterized in that: described rail body (1) adopts cold drawn shape extrusion to make.
3. the profile rail of high pressure co-rail system as claimed in claim 1, is characterized in that: described rail body (1) one end is provided with the pressure transducer (8) be communicated with store oil road (4).
4. the profile rail of high pressure co-rail system as claimed in claim 1, is characterized in that: described rail body (1) is provided with the mounting hole (11) for being connected with motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520510438.4U CN204827741U (en) | 2015-07-14 | 2015-07-14 | A section bar rail for high pressure common rail system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520510438.4U CN204827741U (en) | 2015-07-14 | 2015-07-14 | A section bar rail for high pressure common rail system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204827741U true CN204827741U (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520510438.4U Active CN204827741U (en) | 2015-07-14 | 2015-07-14 | A section bar rail for high pressure common rail system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204827741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929835A (en) * | 2015-07-14 | 2015-09-23 | 无锡威孚高科技集团股份有限公司 | Sectional material rail for high-pressure common rail system |
-
2015
- 2015-07-14 CN CN201520510438.4U patent/CN204827741U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929835A (en) * | 2015-07-14 | 2015-09-23 | 无锡威孚高科技集团股份有限公司 | Sectional material rail for high-pressure common rail system |
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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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180314 Address after: 214028 Wuxi New District, Jiangsu, Huashan Road, No. 5 Patentee after: Wuxi Weifu High-Technology Co., Ltd. Address before: 214192 No. 5 Huashan Road, New District, Jiangsu, Wuxi Co-patentee before: Wuxi Weifu Automotive Diesel Systems Co., Ltd. Patentee before: Wuxi Weifu High-Technology Co., Ltd. |