CN212145207U - Press fitting copper bush device for oil injector - Google Patents
Press fitting copper bush device for oil injector Download PDFInfo
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- CN212145207U CN212145207U CN202020739765.8U CN202020739765U CN212145207U CN 212145207 U CN212145207 U CN 212145207U CN 202020739765 U CN202020739765 U CN 202020739765U CN 212145207 U CN212145207 U CN 212145207U
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- mandrel
- sleeve
- shaft sleeve
- copper
- end cover
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Abstract
The utility model discloses a pressure equipment sprayer copper sheathing device. It includes: the lower part of the shaft sleeve is provided with an end face for pressing a copper sleeve of the oil sprayer; a stepped guide hole is formed in the middle core part of the shaft sleeve; the limiting flange is fixed at the upper end of the shaft sleeve; an end cap slidably fitted within the sleeve; the force transmission sleeve is arranged on the inner side of the end cover; the mandrel penetrates through the shaft sleeve, a spiral groove is formed in a mandrel body of the mandrel, a limiting flange is arranged at the upper part of the mandrel body, and the mandrel body is matched with the force transmission sleeve through a one-way thrust ball bearing; the lower part of the mandrel is provided with an arc-shaped thimble; the rotation guiding limiting locking screw penetrates through the side surface of the shaft sleeve and is provided with a ball head arc surface; the pressure spring is arranged between the shaft sleeve and the end cover; and a return spring. The device for press fitting the copper sleeve of the oil sprayer can avoid the surface of a middle forming hole from generating pull marks, and can ensure the coaxiality of the axis of the forming hole and the axis of the copper sleeve of the oil sprayer.
Description
Technical Field
The utility model relates to an engine field especially is about a pressure equipment sprayer copper sheathing device.
Background
At present, in the process of pressing and pasting the outer cylindrical surface of a boss on the lower end surface of a copper sleeve of an oil sprayer and the cylindrical surface of a mounting hole of a cylinder cover of a diesel engine cylinder cover, a vertically moving mandrel is adopted to press down a fixed-size ball (the ball is not connected with the mandrel and can be repeatedly used after being collected) or the outer cylindrical surface of the mandrel is directly extruded, expanded and pressed and pasted for forming. The former can only ensure the local size (diameter) value of the inner hole formed in the middle of the outer cylinder of the boss on the lower end face of the copper sleeve of the oil sprayer, and cannot ensure the coaxiality of the axis of the forming hole and the axis of the copper sleeve of the oil sprayer and the straightness of the forming hole. The latter can produce pull marks on the surface of the middle forming hole during the moving process (pressing and drawing) of the mandrel, and can not ensure the coaxiality of the forming hole axis and the copper sleeve axis of the fuel injector.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pressure equipment sprayer copper sheathing device that simple structure is reasonable, it can avoid middle shaping hole surface to produce and draw the trace to can guarantee the axiality of shaping hole axis and sprayer copper sheathing axis. .
In order to achieve the above object, the utility model provides a pressure equipment sprayer copper sheathing device, include: the lower part of the shaft sleeve is provided with an end face for pressing a copper sleeve of the oil sprayer; a stepped guide hole is formed in the middle core part of the shaft sleeve; the limiting flange is fixed at the upper end of the shaft sleeve; the end cover is slidably matched in the shaft sleeve and used for bearing and transmitting pressure transmitted by the press; the force transmission sleeve is arranged on the inner side of the end cover and is used for transmitting pressure; the mandrel penetrates through the shaft sleeve, a spiral groove is formed in a mandrel body of the mandrel, a limiting flange is arranged at the upper part of the mandrel body, and the mandrel body is matched with the force transmission sleeve through a one-way thrust ball bearing; the lower part of the mandrel is provided with an arc-shaped thimble; the rotation guiding limiting locking screw is arranged on the side surface of the shaft sleeve in a penetrating mode, is provided with a ball head arc surface and is used for being matched with the spiral groove of the mandrel to achieve rotary guiding; the pressure spring is arranged between the shaft sleeve and the end cover and is used for transmitting the pressure of the press machine and returning the end cover; and the return spring is arranged between the one-way thrust ball bearing and the shaft sleeve and used for returning the mandrel.
In a preferred embodiment, the shaft is provided at the upper end of the mandrel with a snap ring.
In a preferred embodiment, the stop flange is fixed to the upper end of the sleeve by means of socket head cap screws.
In a preferred embodiment, an annular groove is formed between the stepped guide holes of the shaft sleeve and used for positioning the return spring.
Compared with the prior art, according to the utility model discloses a pressure equipment sprayer copper sheathing device has following beneficial effect: the device for press fitting the copper sleeve of the oil sprayer can avoid the surface of a middle forming hole from generating pull marks, and can ensure the coaxiality of the axis of the forming hole and the axis of the copper sleeve of the oil sprayer.
Drawings
Fig. 1 is a schematic front view of a copper bush device for a fuel injector according to an embodiment of the present invention.
Fig. 2 is a schematic sectional view of a direction a-a of a press-fitting injector copper bush device according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of the use of the copper bush device for the oil sprayer according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of an initial state of compression of the copper bush device of the pressure-fitting oil sprayer according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a pressing end state of the copper bush device of the press-fitting oil injector according to an embodiment of the present invention.
Fig. 6 is a schematic view of a sectional structure of a shaft sleeve of a copper bush device for a fuel injector according to an embodiment of the present invention.
Fig. 7 is a schematic structural view of a mandrel of a copper bush device for a fuel injector according to an embodiment of the present invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As shown in fig. 1 to 6, the concrete structure of the press-fitting injector copper bush device according to the preferred embodiment of the present invention includes: the end cover 1, the shaft elastic snap ring 2, the limiting flange 3, the force transmission sleeve 4, the one-way thrust ball bearing 6, the pressure spring 7, the return spring 8, the mandrel 9, the shaft sleeve 10 and the rotation guiding limiting locking screw 11. The device for press fitting the copper sleeve of the oil sprayer can avoid the surface of a middle forming hole from generating pull marks, and can ensure the coaxiality of the axis of the forming hole and the axis of the copper sleeve of the oil sprayer.
Specifically, as shown in fig. 6, a sleeve 10 is a base assembly body, and a lower portion thereof has an end face for pressing a copper bush of a fuel injector; the middle part is provided with an outer cylindrical surface for positioning the copper sleeve of the oil sprayer and a lead rotation limiting locking screw hole for fixing a lead rotation limiting locking screw 11. The upper end face is provided with a limiting flange screw hole. The middle core part of the shaft sleeve 10 is provided with two guide holes (with clearance treatment between the two guide holes) with different diameters, which are used for matching with the cylindrical surfaces of different parts of the rod part of the mandrel 9, and the flange part at the inner side of the middle part is provided with an annular groove for positioning the return spring 8.
The limiting flange 3 is fixed at the upper end of the shaft sleeve 10 through an inner hexagonal socket head cap screw 5 and used for limiting all movable parts arranged in the shaft sleeve 10.
The outer cylindrical surface of the end cover 1 and the inner hole of the shaft sleeve 10 are arranged in a sliding fit mode and used for bearing and transmitting pressure transmitted by the press machine 12 and ensuring that the action line of force is along the axial direction.
The force transmission sleeve 4 is arranged on the inner side of the end cover 1 and used for transmitting pressure.
As shown in fig. 7, the mandrel 9 is inserted into the sleeve 10, and the diameters of the rod parts at different positions are matched with two guide holes with different diameters of the part 10 (sleeve) for guiding in the axial direction. A spiral groove is formed in the rod body of the mandrel 9, and the spiral groove is matched with a ball head arc surface of the rotation guiding limiting locking screw 11 after assembly and used for rotary guiding. The upper part of the mandrel 9 is provided with a limiting flange which is matched with the force transmission sleeve 4 through a one-way thrust ball bearing 6 (2). The lower part of the mandrel 9 is provided with an arc thimble.
The elastic snap ring 2 for the shaft is arranged at the upper end of the mandrel 9 and used for limiting the falling prevention of the mandrel 9 after assembly.
The pressure spring 7 is arranged between the shaft sleeve 10 and the end cover 1 and is used for transmitting the pressure of the press and the return of the end cover 1.
And the return spring 8 is arranged between the one-way thrust ball bearing 6 and the annular groove of the flange on the inner side of the middle part of the shaft sleeve 10 and is used for returning the mandrel 9. The sizes of the matching parts are required to be in tool level matching property of PhiA 1\ PhiA 2, Phib \ Phib 1 and PhiC \ PhiC 1, and the materials have high wear resistance.
In conclusion, the device for press-fitting the copper sleeve of the oil sprayer can avoid the surface of the middle forming hole from generating pull marks and can ensure the coaxiality of the axis of the forming hole and the axis of the copper sleeve of the oil sprayer.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (4)
1. The utility model provides a pressure equipment sprayer copper sheathing device which characterized in that includes:
the lower part of the shaft sleeve is provided with an end face for pressing a copper sleeve of the oil sprayer; a stepped guide hole is formed in the middle core part of the shaft sleeve;
the limiting flange is fixed at the upper end of the shaft sleeve;
the end cover is slidably matched in the shaft sleeve and used for bearing and transmitting pressure transmitted by the press;
the force transmission sleeve is arranged on the inner side of the end cover and is used for transmitting pressure;
the mandrel penetrates through the shaft sleeve, a spiral groove is formed in a mandrel body of the mandrel, a limiting flange is arranged at the upper part of the mandrel body, and the mandrel body is matched with the force transmission sleeve through a one-way thrust ball bearing; the lower part of the mandrel is provided with an arc-shaped thimble;
the rotation guiding limiting locking screw is arranged on the side surface of the shaft sleeve in a penetrating mode, is provided with a ball head arc surface and is used for being matched with the spiral groove of the mandrel to achieve rotary guiding;
the pressure spring is arranged between the shaft sleeve and the end cover and is used for transmitting the pressure of the press machine and returning the end cover; and
and the return spring is arranged between the one-way thrust ball bearing and the shaft sleeve and is used for returning the mandrel.
2. A press-fit fuel injector copper bush apparatus as set forth in claim 1, wherein said shaft is disposed at the upper end of the mandrel with a snap ring.
3. A press fitting fuel injector copper sheathing apparatus as claimed in claim 1, wherein said retainer flange is secured to the upper end of the bushing by socket cap head cap screws.
4. A press-fitting fuel injector copper bush device as in claim 1, wherein an annular groove is formed between the stepped guide holes of the bushing to locate the return spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020739765.8U CN212145207U (en) | 2020-05-08 | 2020-05-08 | Press fitting copper bush device for oil injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020739765.8U CN212145207U (en) | 2020-05-08 | 2020-05-08 | Press fitting copper bush device for oil injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212145207U true CN212145207U (en) | 2020-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020739765.8U Active CN212145207U (en) | 2020-05-08 | 2020-05-08 | Press fitting copper bush device for oil injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212145207U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111390533A (en) * | 2020-05-08 | 2020-07-10 | 广西玉柴机器股份有限公司 | Press fitting copper bush device for oil injector |
| CN113977230A (en) * | 2021-11-11 | 2022-01-28 | 北油电控燃油喷射系统(天津)有限公司 | Oil sprayer body retainer ring press-fitting equipment |
| CN117773539A (en) * | 2024-02-07 | 2024-03-29 | 江苏武蕾机械有限公司 | Single cylinder diesel engine cylinder cover processing production system and working method thereof |
-
2020
- 2020-05-08 CN CN202020739765.8U patent/CN212145207U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111390533A (en) * | 2020-05-08 | 2020-07-10 | 广西玉柴机器股份有限公司 | Press fitting copper bush device for oil injector |
| CN113977230A (en) * | 2021-11-11 | 2022-01-28 | 北油电控燃油喷射系统(天津)有限公司 | Oil sprayer body retainer ring press-fitting equipment |
| CN117773539A (en) * | 2024-02-07 | 2024-03-29 | 江苏武蕾机械有限公司 | Single cylinder diesel engine cylinder cover processing production system and working method thereof |
| CN117773539B (en) * | 2024-02-07 | 2024-05-07 | 江苏武蕾机械有限公司 | Single cylinder diesel engine cylinder cover processing production system and working method thereof |
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