CN103591005B - Push pin device - Google Patents
Push pin device Download PDFInfo
- Publication number
- CN103591005B CN103591005B CN201310556432.6A CN201310556432A CN103591005B CN 103591005 B CN103591005 B CN 103591005B CN 201310556432 A CN201310556432 A CN 201310556432A CN 103591005 B CN103591005 B CN 103591005B
- Authority
- CN
- China
- Prior art keywords
- sleeve
- thimble
- spring
- bolt
- section
- 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.)
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Links
- 239000004519 grease Substances 0.000 claims description 9
- 210000002445 nipple Anatomy 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 230000008602 contraction Effects 0.000 abstract 1
- 238000007373 indentation Methods 0.000 abstract 1
- 210000003781 tooth socket Anatomy 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Joining Of Building Structures In Genera (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention provides a kind of push pin device, including: sleeve, thimble, spring, bolt and fixed mount；Thimble and spring are installed in the head of sleeve successively, are provided with screw thread in the afterbody of sleeve, and bolt threadingly rotates in sleeve, can promote spring contraction, and then promote thimble to be displaced outwardly in sleeve.When actually used, push pin device is fixed, make one end of thimble stretch out the head of sleeve by swivel bolt, and the length that thimble stretches out can be so that it extend in the teeth groove of fan-shaped teeth groove limiting component.Therefore, in fan-shaped teeth groove limiting component rotary course, when thimble and non-teeth groove location contacts, thimble can in sleeve indentation preset displacement, when thimble slides into the position of teeth groove, thimble can outwards eject and extend in teeth groove, thus defines the movement of fan-shaped teeth groove limiting component, achieve and fan-shaped teeth groove limiting component is fixed, solve a difficult problem of the prior art.
Description
Technical Field
The invention relates to the technical field of thimbles, in particular to a thimble device.
Background
At present, the control of the displacement (namely the power output) of the hydraulic pump is realized through a draw arm mechanism, the draw arm mechanism comprises a straight arm and a fan-shaped tooth socket limiting part, the straight arm is fixedly connected with the fan-shaped tooth socket limiting part, and the straight arm is rotated to drive the fan-shaped tooth socket limiting part to rotate along a fixed point, so that the relative position of the fan-shaped tooth socket limiting part and the hydraulic pump is changed, and the displacement of the hydraulic pump is controlled. However, in practical use, the hydraulic pump is often required to provide a constant displacement, and the sector spline limiting part needs to be fixed at a certain position. But because reasons such as gravity for the straight arm has a small amount of removal to drive fan-shaped tooth's socket stop block to have a small amount of removal, lead to the hydraulic pump discharge capacity to change. In order to avoid this, the existing method is to fix the straight arm at a certain position by manual control, and although this method can effectively avoid the movement of the sector socket limiting component, it wastes much labor and time. Therefore, how to fix the fan-shaped tooth socket limiting component is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a thimble device to fix the sector-shaped tooth slot limiting component.
A thimble assembly, comprising: the device comprises a sleeve, a thimble, a spring, a bolt and a fixing frame;
the thimble and the spring are sequentially arranged in the head part of the sleeve, the thimble has a preset moving space under the pushing of the spring, one end of the thimble can be pushed out of the head part of the sleeve, and the length of the thimble extending out is enough to enable the thimble to extend into a tooth groove of the fan-shaped tooth groove limiting component; the tail part of the sleeve is internally provided with threads, the bolt rotates in the threads to adjust the telescopic length of the spring, and the fixing frame is fixed outside the sleeve and used for fixing the thimble device on other components;
further comprising: a nut;
the nut is located outside the sleeve and screwed into the screw of the bolt to lock the bolt.
The thimble comprises a base rod, one end of the base rod is provided with a head part, and the head part is used for being in contact with the spring; the section of the head part is a circular section, and the diameter of the circular section is not smaller than that of the cross section of the spring; the diameter of the cross section of the screw rod of the bolt is not smaller than that of the cross section of the spring; the spring is a pressure spring; the diameter of the cross section of the head portion of the sleeve is smaller than the diameter of the cross section of the tail portion of the sleeve.
Preferably, the method further comprises the following steps: a grease nipple;
the grease nipple is arranged on the outer side of the sleeve and used for filling grease into the sleeve.
Preferably, the fixing frame includes: the sleeve is fixed in the middle of one of the panels and is perpendicular to the common edge of the two panels.
Preferably, the sleeve and the fixing frame are made of metal materials.
It can be seen from the above technical solutions that the present invention provides a thimble device, including: the device comprises a sleeve, a thimble, a spring, a bolt and a fixing frame; the thimble and the spring are sequentially arranged in the head of the sleeve, the tail of the sleeve is internally provided with threads, the bolt rotates towards the inner part of the sleeve along the threads, the spring can be pushed to contract, and then the thimble is pushed to move outwards in the sleeve. When the ejector pin device is used in practice, the ejector pin device is fixed, one end of the ejector pin extends out of the head of the sleeve through rotating the bolt, and the length of the extension of the ejector pin is enough to enable the ejector pin to extend into the tooth groove of the fan-shaped tooth groove limiting part. Therefore, in the rotating process of the fan-shaped tooth space limiting part, when the ejector pin is in contact with the non-tooth space part, the ejector pin can retract into the sleeve by a preset displacement amount, and when the ejector pin slides to the position with the tooth space, the ejector pin can pop out outwards to stretch into the tooth space, so that the movement of the fan-shaped tooth space limiting part is limited, the fan-shaped tooth space limiting part is fixed, and the problem in the prior art is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of a thimble assembly according to an embodiment of the present invention;
fig. 2 is a top view of an ejector pin device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and fig. 2, which are a front view and a top view of an ejector pin device disclosed in an embodiment of the present invention, respectively, the ejector pin device includes: the device comprises a sleeve 1, a thimble 2, a spring 3, a bolt 4 and a fixed frame 5;
wherein,
thimble 2 and spring 3 are installed in the head of sleeve 1 in proper order, and thimble 2 has predetermined removal space under the promotion of spring 3, and the head of sleeve 1 can be pushed out to the one end of thimble 2, is provided with the screw thread in the afterbody of sleeve 1, and bolt 4 is at the flexible length of screw thread internal rotation regulation spring 3, and mount 5 is fixed in the outside of sleeve 1 for be fixed in other parts with the thimble device.
In practical use, the ejector pin device is fixed, one end of the ejector pin 2 extends out of the head of the sleeve 1 through the rotating bolt 4, and the ejector pin 2 can extend into the tooth groove of the fan-shaped tooth groove limiting component due to the extending length of the ejector pin 2. Therefore, in the rotating process of the fan-shaped tooth space limiting component, when the ejector pin 2 is in contact with a non-tooth space part, the ejector pin 2 can retract into the sleeve 1 by a preset displacement amount, and when the ejector pin 2 slides to a position with the tooth space, the ejector pin 2 can pop out outwards to stretch into the tooth space, so that the movement of the fan-shaped tooth space limiting component is limited, the fan-shaped tooth space limiting component is fixed, and the problem in the prior art is solved.
It should be noted that the thread of the bolt 4 matches the thread in the sleeve 1, and the sleeve 1 may be made of metal.
It will be appreciated that to ensure that the bolt 4 can adjust the length of the spring 3, the diameter of the cross-section of the shank of the bolt 4 need not be less than the diameter of the cross-section of the spring 3.
Preferably, the spring 3 may be a compression spring.
It should be noted that the thimble 2 may also be a steel ball, and the invention is not limited herein.
In order to further optimize the above embodiment, the ejector pin device may further include: and a nut 6, wherein the nut 6 is positioned outside the sleeve 1 and screwed into the screw rod of the bolt 4 to lock the bolt 4.
It will be appreciated that the tightness of the bolt 4 within the sleeve 1 may affect the amount of extension and retraction of the spring 3 and hence of the thimble 2. Therefore, before the bolt 4 is screwed into the sleeve 1, the nut 6 is screwed to lock the bolt 4, which can effectively increase the stability of the bolt 4.
In order to further optimize the above embodiment, the ejector pin device may further include: grease nipple 7, grease nipple 7 set up in the outside of sleeve 1 for to the interior butter that annotates of sleeve 1, in order to do benefit to thimble 2 and slide in sleeve 1.
The grease nipple 7 may be disposed at a position of the sleeve 1 corresponding to a position where the spring 3 contacts the thimble 2.
Preferably, the fixing frame 5 may include: two panels perpendicular to each other (see in particular fig. 1 and 2), the sleeve 1 being fixed in the middle of one of the panels and perpendicular to the common edge of the two panels.
It can be understood that the fixing frame 5 is designed as two panels perpendicular to each other, so that the fixing frame 5 can be conveniently clamped between the two components, thereby fixing the thimble device.
The fixing frame 5 may be made of metal, and the fixing frame 5 may be formed by bending a metal panel.
It should be noted that the shape of the fixing frame 5 is not limited to the above shape, and the fixing of the thimble device is within the scope of the present invention as long as the thimble device can be fixed.
Preferably, the thimble 2 may comprise a base rod having at one end a head for contacting the spring 3 (see in particular fig. 1 and 2).
Wherein the head portion preferably has a circular cross-section to facilitate movement of the thimble 2 within the sleeve 1. To prevent the thimble 2 from extending into the spring 1, the diameter of the circular section of the base rod head needs to be no smaller than the diameter of the cross section of the spring 3.
It can be understood that, on one hand, the thimble 2 is designed into the above shape, so that one end of the thimble 2 extending out of the sleeve 1 can just extend into the tooth socket of the fan-shaped tooth socket limiting part, thereby limiting the movement of the fan-shaped tooth socket limiting part; on the other hand, the section of the end of the base rod with the head can be adjusted according to the diameter of the cross section of the spring 3, so as to avoid the thimble 2 from extending into the spring 1.
Preferably, according to the above-mentioned structural features of the thimble 2, the shape of the sleeve 1 may be designed such that the diameter of the cross section of the head portion is designed to be smaller than the diameter of the cross section of the tail portion.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. A thimble device, comprising: the device comprises a sleeve, a thimble, a spring, a bolt and a fixing frame;
the thimble and the spring are sequentially arranged in the head part of the sleeve, the thimble has a preset moving space under the pushing of the spring, one end of the thimble can be pushed out of the head part of the sleeve, and the length of the thimble extending out is enough to enable the thimble to extend into a tooth groove of the fan-shaped tooth groove limiting component; the tail part of the sleeve is internally provided with threads, the bolt rotates in the threads to adjust the telescopic length of the spring, and the fixing frame is fixed outside the sleeve and used for fixing the thimble device on other components;
further comprising: a nut; the nut is positioned outside the sleeve and screwed into the screw rod of the bolt so as to lock the bolt;
the thimble comprises a base rod, one end of the base rod is provided with a head part, and the head part is used for being in contact with the spring; the section of the head part is a circular section, and the diameter of the circular section is not smaller than that of the cross section of the spring; the diameter of the cross section of the screw rod of the bolt is not smaller than that of the cross section of the spring; the spring is a pressure spring; the diameter of the cross section of the head portion of the sleeve is smaller than the diameter of the cross section of the tail portion of the sleeve.
2. The ejector pin device according to claim 1, further comprising: a grease nipple;
the grease nipple is arranged on the outer side of the sleeve and used for filling grease into the sleeve.
3. The ejector pin device according to claim 1, wherein said mount comprises: the sleeve is fixed in the middle of one of the panels and is perpendicular to the common edge of the two panels.
4. The ejector pin device according to claim 1, wherein said sleeve and said fixing frame are made of metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310556432.6A CN103591005B (en) | 2013-11-11 | 2013-11-11 | Push pin device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310556432.6A CN103591005B (en) | 2013-11-11 | 2013-11-11 | Push pin device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103591005A CN103591005A (en) | 2014-02-19 |
| CN103591005B true CN103591005B (en) | 2016-08-17 |
Family
ID=50081281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310556432.6A Active CN103591005B (en) | 2013-11-11 | 2013-11-11 | Push pin device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103591005B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104003271A (en) * | 2014-06-10 | 2014-08-27 | 昆山亿顺自动化科技有限公司 | Locking mechanism for construction elevator landing door |
| CN114147506A (en) * | 2021-11-08 | 2022-03-08 | 上海航天精密机械研究所 | Flexible tail jacking device for rough machining and finish machining axial clamping and thin-wall cabin device thereof |
| CN115770991A (en) * | 2022-11-18 | 2023-03-10 | 北京遥感设备研究所 | Threaded spring thimble |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202317052U (en) * | 2011-11-11 | 2012-07-11 | 柳州市榆暄液压机械有限公司 | End surface center for milling and machining linked shaft spline |
| CN202763352U (en) * | 2012-09-18 | 2013-03-06 | 上海强精金属制品有限公司 | Rotation even division positioning welding fixture |
| CN202936825U (en) * | 2012-12-06 | 2013-05-15 | 山推工程机械股份有限公司 | Multifunctional operation device based on hydraulic speed change valve of bulldozer |
| CN202971373U (en) * | 2012-12-11 | 2013-06-05 | 郑州华晶金刚石股份有限公司 | Ultrahigh pressure stabilizer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0642462A (en) * | 1992-07-20 | 1994-02-15 | Tokico Ltd | Reciprocating type compressor |
| JP3272962B2 (en) * | 1996-08-09 | 2002-04-08 | 株式会社ゼクセルヴァレオクライメートコントロール | Variable displacement compressor |
-
2013
- 2013-11-11 CN CN201310556432.6A patent/CN103591005B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202317052U (en) * | 2011-11-11 | 2012-07-11 | 柳州市榆暄液压机械有限公司 | End surface center for milling and machining linked shaft spline |
| CN202763352U (en) * | 2012-09-18 | 2013-03-06 | 上海强精金属制品有限公司 | Rotation even division positioning welding fixture |
| CN202936825U (en) * | 2012-12-06 | 2013-05-15 | 山推工程机械股份有限公司 | Multifunctional operation device based on hydraulic speed change valve of bulldozer |
| CN202971373U (en) * | 2012-12-11 | 2013-06-05 | 郑州华晶金刚石股份有限公司 | Ultrahigh pressure stabilizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103591005A (en) | 2014-02-19 |
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| C14 | Grant of patent or utility model | ||
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