CN207454490U - A kind of lubricating oil pump chain tension rail bolt - Google Patents
A kind of lubricating oil pump chain tension rail bolt Download PDFInfo
- Publication number
- CN207454490U CN207454490U CN201721625567.3U CN201721625567U CN207454490U CN 207454490 U CN207454490 U CN 207454490U CN 201721625567 U CN201721625567 U CN 201721625567U CN 207454490 U CN207454490 U CN 207454490U
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- CN
- China
- Prior art keywords
- oil pump
- bar portion
- transition part
- length
- head
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Abstract
The utility model is related to technical field of fastening,More particularly to a kind of lubricating oil pump chain tension rail bolt,Run through female head including inside,Bar portion is extended in the left side of head,The internal thread extends to the inside of the bar portion,Depth of the internal thread in bar portion is no more than the 3/4 of the bar portion length,It is equipped with to place the transition part of sealing ring on the left of the bar portion,The externally threaded connecting portion of peripheral hardware is equipped on the left of the transition part,The cross-sectional area on the head is more than the cross-sectional area of the bar portion,The head constructs for outer-hexagonal,The diameter of the internal thread is equal to the externally threaded diameter,The length of the transition part is less than the 1/5 of the connecting portion length,The junction of the transition part and bar portion is equipped with the first fillet,The radius of first fillet is not more than 0.45cm,The length of the internal thread is more than the externally threaded length,The utility model is simple in structure.
Description
Technical field
The utility model is related to technical field of fastening, and in particular to a kind of lubricating oil pump chain tension rail bolt.
Background technology
Occur the resonance of " drone, drone " during engine idling in driver's cabin, at this moment need to rise automobile using lifting machine, use auscultation
Device contacts oil sump, starts engine and hears that sound from the inside, does not see exception after removing oil sump, suspects that engine oil baffle is shaken
It is dynamic, baffle is removed, sound still remains after installing oil sump, at this moment removes sump strainer again, makes lubricating oil pump directly from oily bottom
Oil suction in shell, abnormal sound disappear, this abnormal sound has its source in machine oil pump sprocket stretcher and machine oil pump sprocket, but is listened in the position
The sound arrived but unobvious, it is apparent that vibration is transferred to sound at sump strainer, it would be desirable to replace lubricating oil pump chain tensioning device,
After sprocket wheel, chain, troubleshooting, more than there is the solution of the resonance of " drone, drone " in driver's cabin when being engine idling, should
The most important step of solution is dismounting lubricating oil pump chain tension rail bolt, i.e. machine oil pump sprocket stretcher and lubricating oil pump chain
Connection bolt between wheel, previous lubricating oil pump chain tension rail bolt realizes connection using traditional stud, but passes
The stud of system is not easy to remove, and can not fast hand twist so as to the position between installation bolt and machine oil pump sprocket.
Utility model content
(1) the technical issues of solving
The purpose of this utility model is to provide a kind of lubricating oil pump chain tension rail bolt, to solve nothing existing for documents
Method by bolt is quick, hand is screwed in machine oil pump sprocket designated position and can not soon quick-detach in the designated position of machine oil pump sprocket
Bolt there are the problem of.
(2) technical solution
In order to achieve the above object, the utility model is achieved by the following technical programs：A kind of lubricating oil pump chain tension
Rail bolt, which is characterized in that run through female head including inside, bar portion is extended in the left side of head, it is described interior
Screw thread extends to the inside of the bar portion, and depth of the internal thread in bar portion is no more than the 3/4 of the bar portion length, in institute
It states and is equipped on the left of bar portion convenient for placing the transition part of sealing ring, the externally threaded connecting portion of peripheral hardware is equipped on the left of the transition part,
The cross-sectional area on the head is more than the cross-sectional area of the bar portion, and the head constructs for outer-hexagonal, the internal thread
Diameter be equal to the externally threaded diameter, the length of the transition part is less than the 1/5 of the connecting portion length, the transition part
The first fillet is equipped with the junction of bar portion, the radius of first fillet is not more than 0.45cm, and the length of the internal thread is big
In the externally threaded length.
Preferably, the 5/6 of a diameter of connecting portion diameter of the transition part, the transition part are with the connecting portion
Concentric design.
Preferably, the second fillet is equipped between the transition part and the connecting portion, the radius of second fillet is little
In 0.5cm.
(3) advantageous effect
The utility model provides a kind of lubricating oil pump chain tension rail bolt, has the following advantages：
1st, since machine oil pump sprocket is located at the both ends of machine oil pump sprocket stretcher, head can be held, so as to connect
Socket part is inserted into the designated position of machine oil pump sprocket, then and turn head, complete lubricating oil pump chain tension rail bolt and lubricating oil pump chain
The connection of wheel, the problem of without having to worry about being difficult to stretch between machine oil pump sprocket and machine oil pump sprocket stretcher by specific purpose tool.
2nd, since machine oil pump sprocket is located at the both ends of machine oil pump sprocket stretcher, head can be held, so as to turn
Head completes the dismounting of lubricating oil pump chain tension rail bolt and machine oil pump sprocket, is difficult to stretch into without having to worry about by specific purpose tool
The problem of between machine oil pump sprocket and machine oil pump sprocket stretcher.
3rd, tested many times by inventor, it is found that the junction of transition part and bar portion is equipped with the first fillet, described first
When the radius of fillet is not more than 0.45cm, after putting sealing ring, lubricating oil pump chain tension rail bolt and machine oil pump sprocket are completed
After fastening, the connection of sealing ring and bar portion is closer, more difficult oil leak situation occur.
4th, tested many times by inventor, the second fillet, second circle are equipped between transition part and the connecting portion
When the radius at angle is not more than 0.5cm, after putting sealing ring, the fastening of lubricating oil pump chain tension rail bolt and machine oil pump sprocket is completed
Afterwards, sealing ring and connecting portion, the triangular connection of machine oil pump sprocket are closer, and more difficult oil leak situation occur, this is this reality
With a new great discovery, the second fillet must be provided with herein, and the radius of the second fillet must cannot be more than 0.5cm, such as
Fruit does not set fillet or radius of corner is more than 0.5cm, then can lose part sealing function herein, the effect of the utility model is not achieved
Fruit after the utility model, can under equal conditions, extend the service life of 2-3.
Description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is the utility model side view.
Fig. 3 is A enlarged drawings in Fig. 1.
Fig. 4 is B enlarged drawings in Fig. 1.
In figure：Internal thread 1, head 2, bar portion 3, transition part 4, external screw thread 5, connecting portion 6, the first fillet 7, the second fillet 8.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
- 4 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of lubricating oil pump chain tension rail bolt, it is special
Sign is, including internal through the head 2 for having internal thread 1, bar portion 3, the internal thread extension are extended in the left side of head
To the inside of the bar portion, depth of the internal thread in bar portion is no more than the 3/4 of the bar portion length, left in the bar portion
Side is equipped with the connecting portion 6 for being equipped with peripheral hardware external screw thread 5 on the left of the transition part convenient for placing the transition part 4 of sealing ring, the head
The cross-sectional area in portion is more than the cross-sectional area of the bar portion, and the head constructs for outer-hexagonal, the diameter of the internal thread
Equal to the externally threaded diameter, the length of the transition part is less than the 1/5 of the connecting portion length, the transition part and bar portion
Junction be equipped with the first fillet, no more than 0.45cm, the length of the internal thread is more than described for the radius of first fillet 7
Externally threaded length.
Preferably, the 5/6 of a diameter of connecting portion diameter of the transition part, the transition part are with the connecting portion
Concentric design.
Preferably, the second fillet 8 is equipped between the transition part and the connecting portion, the radius of second fillet is little
In 0.5cm.
Working method and principle：
Since machine oil pump sprocket is located at the both ends of machine oil pump sprocket stretcher, head can be held, so as to connect
Portion is inserted into the designated position of machine oil pump sprocket, then and turn head, complete lubricating oil pump chain tension rail bolt and machine oil pump sprocket
Connection, the problem of without having to worry about being difficult to stretch between machine oil pump sprocket and machine oil pump sprocket stretcher by specific purpose tool.
Since machine oil pump sprocket is located at the both ends of machine oil pump sprocket stretcher, head can be held, so as to turn head
Portion completes the dismounting of lubricating oil pump chain tension rail bolt and machine oil pump sprocket, without having to worry about being difficult to stretch into machine by specific purpose tool
The problem of between oil pump sprocket wheel and machine oil pump sprocket stretcher.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment
Intrinsic element.In the absence of more restrictions.By sentence " element limited including one ..., it is not excluded that
Also there are other identical elements in the process, method, article or apparatus that includes the element ".
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that in the case where not departing from the principle of the utility model and spirit can these embodiments be carried out with a variety of variations, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (3)
1. a kind of lubricating oil pump chain tension rail bolt, which is characterized in that including inside through female head, in the head
Bar portion is extended on the left of portion, the internal thread extends to the inside of the bar portion, and depth of the internal thread in bar portion does not surpass
The 3/4 of the bar portion length is crossed, is equipped on the left of the bar portion convenient for placing the transition part of sealing ring, on the left of the transition part
Equipped with the externally threaded connecting portion of peripheral hardware, the cross-sectional area on the head is more than the cross-sectional area of the bar portion, the head
It is constructed for outer-hexagonal, the diameter of the internal thread is equal to the externally threaded diameter, and the length of the transition part is less than the company
The junction of the 1/5 of socket part length, the transition part and bar portion is equipped with the first fillet, and the radius of first fillet is not more than
0.45cm, the length of the internal thread are more than the externally threaded length.
2. a kind of lubricating oil pump chain tension rail bolt according to claim 1, it is characterised in that：The diameter of the transition part
For the 5/6 of the connecting portion diameter, the transition part is concentric design with the connecting portion.
3. a kind of lubricating oil pump chain tension rail bolt according to claim 1, it is characterised in that：The transition part with it is described
The second fillet is equipped between connecting portion, the radius of second fillet is not more than 0.5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721625567.3U CN207454490U (en) | 2017-11-29 | 2017-11-29 | A kind of lubricating oil pump chain tension rail bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721625567.3U CN207454490U (en) | 2017-11-29 | 2017-11-29 | A kind of lubricating oil pump chain tension rail bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207454490U true CN207454490U (en) | 2018-06-05 |
Family
ID=62276137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721625567.3U Active CN207454490U (en) | 2017-11-29 | 2017-11-29 | A kind of lubricating oil pump chain tension rail bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207454490U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022471A (en) * | 2019-12-26 | 2020-04-17 | 海盐县久力紧固件有限公司 | Non-standard sealing bolt for automobile |
-
2017
- 2017-11-29 CN CN201721625567.3U patent/CN207454490U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111022471A (en) * | 2019-12-26 | 2020-04-17 | 海盐县久力紧固件有限公司 | Non-standard sealing bolt for automobile |
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