CN204585032U - The flexible detent mechanism of a kind of plunger - Google Patents
The flexible detent mechanism of a kind of plunger Download PDFInfo
- Publication number
- CN204585032U CN204585032U CN201520203660.XU CN201520203660U CN204585032U CN 204585032 U CN204585032 U CN 204585032U CN 201520203660 U CN201520203660 U CN 201520203660U CN 204585032 U CN204585032 U CN 204585032U
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- CN
- China
- Prior art keywords
- cloudy
- plunger
- dead head
- spring
- sun
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- 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 - Fee Related
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Abstract
The flexible detent mechanism of plunger of the present utility model, comprise base, cloudy top positioner and the top positioner of sun, cloudy top positioner comprises cloudy dead head, cloudy top, through hole cover plate and cloudy spring, the moon is top is provided with cone tank, cloudy spring is located between clamping boss and through hole cover plate, the moon is top to be connected with flexible handle, the top positioner of sun comprises positive dead head, sun is top, cover plate and with positive spring, sun spring is located in Blind locating holes, sun is top is provided with cone centre, the central shaft conllinear of cone tank and cone centre, blind hole cover plate is provided with positioning boss, the coefficient of elasticity of cloudy spring is greater than positive spring.Compared with prior art, this detent mechanism is using the conical surface of plunger and centre bore as positioning datum, and top and sun is top carries out activity orientation with the moon, positioning datum overlaps with machining benchmark, and fixed form is soft; Plunger bottom face is flexible, be reliably pressed on positioning boss, and location is reliable, and utilize plunger bottom face as benchmark, accuracy of detection is high.
Description
Technical field
The utility model relates to the plunger manufacturing technology field of injection pump, is specifically related to the flexible detent mechanism of a kind of plunger.
Background technology
Plunger displacement pump is the core parts controlling fuel feeding moment and fuel delivery in diesel engine fuel injection system, plunger displacement pump produces charge oil pressure and oil suction pressure by the motion of plunger in plunger bushing, therefore, plunger surface per pass manufacturing procedure and detect and all need to ensure certain precision.Plunger detection and location precision determines the degree of accuracy of detection, the plunger cubing location of prior art adopts fixed locate mode mostly, this mode not only easily damages the conical surface of stopper head and the taper hole of plunger base, position error is introduced in subsequent fine processing, affect product quality, and can not eliminate otherness error between plunger, fixing unreliable being easy to causes larger metrical error, the frequency of therefore cubing reinspection, correction is high, affects the production efficiency of product.
Utility model content
The purpose of this utility model is to overcome problems of the prior art, provide a kind of can reliably, the flexible detent mechanism of the plunger of position ram flexibly.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the flexible detent mechanism of a kind of plunger, comprising:
Base;
Be located at the top positioner of the moon on base, comprise cloudy dead head, the moon be located in the positioning through hole on cloudy dead head is top, be covered on the through hole cover plate on aperture, positioning through hole one end and the cloudy top cloudy spring of resiliency supported, the other end aperture of through hole is stretched out in cloudy top one end, and this one end is provided with the cone tank adapted with the stopper head conical surface, the moon is top is provided with clamping boss, cloudy spring housing be located at cloudy top on, and be arranged between clamping boss and through hole cover plate, through hole cover plate is provided with movable span, the cloudy top other end stretches out movable span, and with the flexible handle pinned connection on cloudy dead head,
Be located at the top positioner of sun on base, comprising positive dead head, the sun be plugged in the Blind locating holes of positive dead head is top, covering the blind hole cover plate and the positive spring top with supporting sun that are located on Blind locating holes aperture, sun spring is located in Blind locating holes, the top upper end face near plunger of sun is provided with the cone centre adapted with plunger centre bore, blind hole cover plate is provided with the locating hole stretched out for cone centre, the central axis conllinear of cone tank and cone centre, the one side near plunger on blind hole cover plate is provided with positioning boss;
Wherein, the coefficient of elasticity of cloudy spring is greater than the coefficient of elasticity of positive spring.
Further, base is provided with slip slotted hole, is provided with fixing threaded hole bottom cloudy dead head and positive dead head, and hold-down screw is connected with the fixing threaded hole bottom cloudy dead head and positive dead head through slip slotted hole.
Further, base is provided with slide rail, and cloudy dead head is respectively equipped with the chute corresponding with slide rail with bottom positive dead head.
The flexible detent mechanism of plunger of the present utility model is using the centre bore of the conical surface of stopper head and plunger bottom face as positioning datum, position with sun is top so that mobilizable the moon is top, positioning datum overlaps with machining benchmark, and machining accuracy is high, fixed form is soft, can not disfiguring workpiece; Plunger bottom face is flexible, be reliably pressed on positioning boss, and location is reliable, and plunger bottom face and plunger central axis can be utilized as the benchmark measured, and it affects little by plunger mismachining tolerance, and accuracy of detection is high; Meanwhile, this detent mechanism also has adaptation plurality of specifications plunger, movable sensitive, rapid operation, non-damageable feature.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is cross-sectional view of the present utility model;
In figure: 1, base, 2, cloudy dead head, 3, plunger, 4, blind hole cover plate, 5, positive dead head, 6, through hole cover plate, 7, flexible handle, 8, bearing pin, 9, cloudy top, 10, cloudy spring, 11, sun is top, 12, positive spring.
Detailed description of the invention
As shown in Figure 1-2, the flexible detent mechanism of a kind of plunger of the present utility model, comprising:
Base 1;
Be located at the top positioner of the moon on base 1, comprise cloudy dead head 2, be located in the moon top 9 in the positioning through hole on cloudy dead head 2, be covered on the cloudy spring 10 of through hole cover plate 6 on aperture, positioning through hole one end and resiliency supported cloudy top 9, the other end aperture of through hole is stretched out in one end of cloudy top 9, and this one end is provided with the cone tank adapted with plunger 3 nose cone face, cloudy top 9 are provided with clamping boss, cloudy spring 10 is sheathed on cloudy top 9, and be arranged between clamping boss and through hole cover plate 6, through hole cover plate 6 is provided with movable span, the other end of cloudy top 9 stretches out movable span, and be connected with flexible handle 7 bearing pin 8 on cloudy dead head 2,
Be located at the top positioner of sun on base 1, comprise positive dead head 5, be plugged in the sun top 11 in the Blind locating holes of positive dead head 5, the blind hole cover plate 4 that lid is located on Blind locating holes aperture and the positive spring 12 with support sun top 11, sun spring 12 is located in Blind locating holes, end face near plunger 3 on sun top 11 is provided with the cone centre adapted with plunger 3 centre bore, blind hole cover plate 4 is provided with the locating hole stretched out for cone centre, the central axis conllinear of cone tank and cone centre, one side near plunger 3 on blind hole cover plate 4 is provided with positioning boss, for position ram 3 bottom face,
Wherein, the coefficient of elasticity of cloudy spring 10 is greater than the coefficient of elasticity of positive spring 12.
The flexible detent mechanism of a kind of plunger of the present utility model is when position ram 3, first, flexible handle 7 is pulled to compress cloudy spring 10, the distance between cloudy top 9 and sun top 11 is made to be greater than plunger 3 length, be convenient to plunger 3 install, after centre bore on plunger 3 bottom face plugs the cone centre on positive spring 12, slowly unclamp flexible handle 7, the cone tank of cloudy top 9 is made to be pressed on the conical surface of plunger 3 head, due to, cloudy spring 10 elasticity is greater than positive spring 12, cloudy spring 10 promote plunger 3 always on the sunny side dead head 5 move, until plunger 3 bottom face contacts with the positioning boss on blind hole cover plate 4, complete the location of plunger 3.
Therefore, compared with prior art, the flexible detent mechanism of plunger of the present utility model is using the centre bore of the conical surface of plunger 3 and plunger 3 bottom face as positioning datum, position with mobilizable the moon top 9 and sun top 11, positioning datum overlaps with machining benchmark, machining accuracy is high, and fixed form is soft, can not disfiguring workpiece; Plunger 3 bottom face is flexible, be reliably pressed on positioning boss, and location is reliable, and plunger 3 bottom face and plunger 3 central axis can be utilized as the benchmark measured, and it affects little by plunger 3 mismachining tolerance, and accuracy of detection is high; Meanwhile, this detent mechanism also has adaptation plurality of specifications plunger 3, movable sensitive, rapid operation, non-damageable feature.
In this example, for the ease of regulating the spacing between cloudy dead head 2 and positive dead head 5, to adapt to the plunger 3 of different length, base 1 is provided with slip slotted hole, fixing threaded hole is provided with bottom cloudy dead head 2 and positive dead head 5, hold-down screw is connected with the fixing threaded hole bottom cloudy dead head 2 and positive dead head 5 through slip slotted hole, in order to prevent cloudy dead head 2 or positive dead head 5 when regulating, the relative position generation deviation of its conllinear, cause location unreliable, therefore on base 1, slide rail is provided with, cloudy dead head 2 is respectively equipped with the chute corresponding with slide rail with bottom positive dead head 5, to carry out straight line adjustment along slide rail.
Above embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model scope change and improve, and all should still belong within this patent covering scope.
Claims (3)
1. the flexible detent mechanism of plunger, is characterized in that, comprising:
Base (1);
Be located at the top positioner of the moon on base (1), comprise cloudy dead head (2), be located in the moon top (9) in the positioning through hole on cloudy dead head (2), be covered on the cloudy spring (10) of through hole cover plate (6) on aperture, described positioning through hole one end and resiliency supported the moon top (9), the other end aperture of through hole is stretched out in one end of described the moon top (9), and this one end is provided with the cone tank adapted with plunger (3) nose cone face, described the moon top (9) is provided with clamping boss, cloudy spring (10) is sheathed on cloudy top (9), and be arranged between clamping boss and through hole cover plate (6), described through hole cover plate (6) is provided with movable span, the other end of cloudy top (9) stretches out movable span, and be connected with flexible handle (7) bearing pin (8) on cloudy dead head (2),
Be located at the top positioner of sun on base (1), comprise positive dead head (5), be plugged in the sun top (11) in the Blind locating holes of positive dead head (5), the blind hole cover plate (4) that lid is located on Blind locating holes aperture and the positive spring (12) with support sun top (11), sun spring (12) is located in described Blind locating holes, the upper end face near plunger (3) of sun top (11) is provided with the cone centre adapted with plunger (3) centre bore, blind hole cover plate (4) is provided with the locating hole stretched out for described cone centre, the central axis conllinear of described cone tank and cone centre, the upper one side near plunger (3) of described blind hole cover plate (4) is provided with positioning boss,
Wherein, the coefficient of elasticity of described cloudy spring (10) is greater than the coefficient of elasticity of described positive spring (12).
2. the flexible detent mechanism of a kind of plunger according to claim 1, it is characterized in that: described base (1) is provided with slip slotted hole, described cloudy dead head (2) and positive dead head (5) bottom are provided with fixing threaded hole, and hold-down screw is connected through the fixing threaded hole of slip slotted hole with cloudy dead head (2) and positive dead head (5) bottom.
3. the flexible detent mechanism of a kind of plunger according to claim 2, it is characterized in that: described base (1) is provided with slide rail, described cloudy dead head (2) is respectively equipped with the chute corresponding with described slide rail with positive dead head (5) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520203660.XU CN204585032U (en) | 2015-04-07 | 2015-04-07 | The flexible detent mechanism of a kind of plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520203660.XU CN204585032U (en) | 2015-04-07 | 2015-04-07 | The flexible detent mechanism of a kind of plunger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204585032U true CN204585032U (en) | 2015-08-26 |
Family
ID=53921229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520203660.XU Expired - Fee Related CN204585032U (en) | 2015-04-07 | 2015-04-07 | The flexible detent mechanism of a kind of plunger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204585032U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107414730A (en) * | 2017-09-06 | 2017-12-01 | 广西玉柴机器股份有限公司 | The demounting tool of cylinder head spron dedicated tool |
| CN114905348A (en) * | 2022-04-11 | 2022-08-16 | 威海红宇数控机床有限公司 | Rolling friction female center |
-
2015
- 2015-04-07 CN CN201520203660.XU patent/CN204585032U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107414730A (en) * | 2017-09-06 | 2017-12-01 | 广西玉柴机器股份有限公司 | The demounting tool of cylinder head spron dedicated tool |
| CN114905348A (en) * | 2022-04-11 | 2022-08-16 | 威海红宇数控机床有限公司 | Rolling friction female center |
| CN114905348B (en) * | 2022-04-11 | 2024-04-12 | 威海红宇数控机床有限公司 | Rolling friction female center |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20190407 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |