CN202834040U - Device for adjusting length of piston rod - Google Patents
Device for adjusting length of piston rod Download PDFInfo
- Publication number
- CN202834040U CN202834040U CN2012204961095U CN201220496109U CN202834040U CN 202834040 U CN202834040 U CN 202834040U CN 2012204961095 U CN2012204961095 U CN 2012204961095U CN 201220496109 U CN201220496109 U CN 201220496109U CN 202834040 U CN202834040 U CN 202834040U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- front fork
- adjusting nut
- adjustment device
- length adjustment
- 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.)
- Expired - Lifetime
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- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a device for adjusting length of a piston rod. The device for adjusting the length of the piston rod comprises a connecting piece, an adjusting nut and the piston rod. The adjusting nut is arranged between a front fork and the piston rod, the front fork is connected with the adjusting nut through the connecting piece, and the adjusting nut is in a spiral connection with the piston rod. The device for adjusting the length of the piston rod is simple in structure, a mechanism does not need to be dismounted and the length of the piston rod can be adjusted easily and conveniently. Meanwhile, a dustproof cover of the piston rod can be prevented from being damaged due to rotation of the front fork, and tightness of power source is improved.
Description
Technical field
The utility model relates to power-driven mechanism corollary equipment technical field, particularly a kind of piston rod length adjustment device.
Background technique
Piston rod is one of critical piece of power source driving mechanism motion, in the process of mechanism's Installation and Debugging, because the length of piston rod can directly affect the movement locus of mechanism, so it is adjustable that the length of piston rod generally will arrange, the length of regulating piston bar generally adopts the length of thread engagement that changes front fork and piston rod to reach the purpose of regulating piston pole length at present, this method exists debugging difficulty large, piston rod easily rotates and damages the piston rod dust-proof cover, actuator produces perpendicular to the pulsating load of piston rod so that the seal ring of piston rod conquassation power source, thereby so that driven medium reveal.
The model utility content
Technical problem to be solved in the utility model provides a kind of simple in structure, and is easy to operate, can prevent the piston rod rotation, improves the piston rod length adjustment device of power source sealing.
For solving the problems of the technologies described above, the utility model provides a kind of piston rod length adjustment device, comprising: link, adjusting nut and piston rod;
Described adjusting nut is located between front fork and the described piston rod;
Described front fork is connected with described adjusting nut by described link;
Described adjusting nut is connected with described piston rod spiral.
Further, described link comprises coupling shaft;
The upper end of described coupling shaft and the bottom-hinged of described front fork;
The lower end of described coupling shaft is fixedly connected with the upper end of adjusting nut.
Further, described piston rod length adjustment device also comprises:
Stop nut, described stop nut are arranged on top, described coupling shaft upper end, are used for carrying out spacing to described front fork.
Further, described piston rod length adjustment device also comprises:
Round nut, described round nut is connected with described piston rod spiral, and is arranged on the adjusting nut lower end.
Further, described piston rod length adjustment device also comprises:
It is peripheral that piston rod protective housing, described piston rod protective housing are arranged on described piston rod.
Further, described front fork bottom is provided with through hole, and described coupling shaft is hinged by described through hole and front fork.
Further, the internal diameter of described through hole is greater than the external diameter of described coupling shaft.
A kind of piston rod length adjustment device that the utility model provides, simple in structure, can not remove mechanism and the length of debugging simply and easily piston rod, and can prevent that the rotation owing to front fork from damaging the dust-proof cover of piston rod, improved the sealing of power source.
Description of drawings
A kind of piston rod length adjustment device plan view that Fig. 1 provides for the utility model embodiment;
A kind of piston rod length adjustment device left view that Fig. 2 provides for the utility model embodiment;
Among the figure: 1-front fork, 2-stop nut, 3-coupling shaft, 4-adjusting nut, 5-round nut, 6-piston rod, 7-driving source, 8-connecting rod, 9-light round pin, 10-piston rod dust-proof cover.
Embodiment
For the further the utility model of setting forth is to reach technological means and the effect that predetermined model utility purpose adopts, below in conjunction with accompanying drawing and preferred embodiment, embodiment and working principle according to a kind of piston rod length adjustment device that the utility model proposes are elaborated.
Referring to Fig. 1, Fig. 2, a kind of piston rod length adjustment device that the utility model embodiment provides comprises: two stop nuts 2, link, 4, two round nuts 5 of adjusting nut, piston rod 6 and piston rod protection cover 10.Wherein, front fork 1 is hinged with the connecting rod 8 of actuator by light round pin 9.The present embodiment link adopts coupling shaft 3, and the upper end of front fork 1 bottom and coupling shaft 3 is hinged.The bottom of front fork 1 is provided with through hole, and coupling shaft 3 is connected with front fork 1 by through hole, and the internal diameter of through hole is greater than the external diameter of coupling shaft 3, thereby can effectively relax power source 7 improves in actuator to the pulsating load of piston rod 6 sealing.The top, upper end of coupling shaft 3 is equipped with two stop nuts 2, and stop nut 2 is used for carrying out spacing to front fork 1.The lower end of coupling shaft 3 is fixedly connected with the upper end of adjusting nut 4, equals adjusting nut 4 hinged with front fork 1, and the rotation that can effectively relax owing to front fork 1 drives piston rod 6 rotations, thereby can reduce the damage of piston rod dust-proof cover 10.The lower end of adjusting nut 4 is connected with the upper end spiral of piston rod 6.The lower end of piston rod 6 is connected with driving source 7.Piston rod dust-proof cover 10 is socketed in the periphery of piston rod 6.Two round nuts 5 are connected with piston rod 6 spirals, and are installed in the lower end of adjusting nut 4, and adjusting nut 4 is played position-limiting action.
The piston rod length adjustment device that the present embodiment provides is that the screwing length that changes adjusting nut 4 and piston rod 6 by rotating adjusting nut 4 drives moving up and down of front fork 1, thereby reaches the position that can immediately regulate front fork 1.
A kind of piston rod length adjustment device that the utility model provides, simple in structure, can not remove mechanism and the length of debugging simply and easily piston rod, and can prevent that the rotation owing to front fork from damaging the dust-proof cover of piston rod, improved the sealing of power source.
It should be noted last that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to example the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (7)
1. a piston rod length adjustment device is characterized in that, comprising:
Link, adjusting nut and piston rod;
Described adjusting nut is located between front fork and the described piston rod;
Described front fork is connected with described adjusting nut by described link;
Described adjusting nut is connected with described piston rod spiral.
2. piston rod length adjustment device as claimed in claim 1 is characterized in that:
Described link comprises coupling shaft;
The upper end of described coupling shaft and the bottom-hinged of described front fork;
The lower end of described coupling shaft is fixedly connected with the upper end of adjusting nut.
3. piston rod length adjustment device as claimed in claim 1 is characterized in that, also comprises:
Stop nut, described stop nut are arranged on top, described coupling shaft upper end, are used for carrying out spacing to described front fork.
4. piston rod length adjustment device as claimed in claim 1 is characterized in that, also comprises:
Round nut, described round nut is connected with described piston rod spiral, and is arranged on the adjusting nut lower end.
5. piston rod length adjustment device as claimed in claim 1 is characterized in that, also comprises:
It is peripheral that piston rod protective housing, described piston rod protective housing are arranged on described piston rod.
6. piston rod length adjustment device as claimed in claim 2 is characterized in that:
Described front fork bottom is provided with through hole, and described coupling shaft is hinged by described through hole and front fork.
7. piston rod length adjustment device as claimed in claim 6 is characterized in that:
The internal diameter of described through hole is greater than the external diameter of described coupling shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204961095U CN202834040U (en) | 2012-09-26 | 2012-09-26 | Device for adjusting length of piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204961095U CN202834040U (en) | 2012-09-26 | 2012-09-26 | Device for adjusting length of piston rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202834040U true CN202834040U (en) | 2013-03-27 |
Family
ID=47945749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204961095U Expired - Lifetime CN202834040U (en) | 2012-09-26 | 2012-09-26 | Device for adjusting length of piston rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202834040U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847892A (en) * | 2014-09-12 | 2015-08-19 | 无锡市威特机械有限公司 | Extruder oil cylinder piston rod and novel oil cylinder structure |
| CN104847891A (en) * | 2014-09-11 | 2015-08-19 | 无锡市威特机械有限公司 | Adjusting device for locking cylinder piston rod |
-
2012
- 2012-09-26 CN CN2012204961095U patent/CN202834040U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847891A (en) * | 2014-09-11 | 2015-08-19 | 无锡市威特机械有限公司 | Adjusting device for locking cylinder piston rod |
| CN104847892A (en) * | 2014-09-12 | 2015-08-19 | 无锡市威特机械有限公司 | Extruder oil cylinder piston rod and novel oil cylinder structure |
| CN104847892B (en) * | 2014-09-12 | 2017-11-07 | 无锡市威特机械有限公司 | A kind of extruder cylinder piston rod and cylinder structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 430212 Jiangxia Economic Development Zone, Wuhan, the new bridge area of the city of Hubei Patentee after: CRRC Yangtze Co.,Ltd. Address before: 430212 Jiangxia Economic Development Zone, Wuhan, the new bridge area of the city of Hubei Patentee before: CSR YANGTZE Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |
|
| CX01 | Expiry of patent term |