CN206386334U - A kind of piston and the new hydraulic cylinder piston body coupled of piston rod - Google Patents
A kind of piston and the new hydraulic cylinder piston body coupled of piston rod Download PDFInfo
- Publication number
- CN206386334U CN206386334U CN201720075287.3U CN201720075287U CN206386334U CN 206386334 U CN206386334 U CN 206386334U CN 201720075287 U CN201720075287 U CN 201720075287U CN 206386334 U CN206386334 U CN 206386334U
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- CN
- China
- Prior art keywords
- piston
- piston rod
- hydraulic cylinder
- rod
- stop collar
- 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 - Fee Related
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- Actuator (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses the new hydraulic cylinder piston body coupled of a kind of piston and piston rod, the piston body includes piston and is coaxially assemblied in the piston rod of the piston center hole, the piston hot charging is on the piston rod, also, use and be welded to connect between the end-face central hole position of the piston and the periphery of piston rod.Welded between the utility model piston and piston rod after hot charging, sealing property and axiality are good；Piston bounce is small after welding, ensure that piston body axiality, it is ensured that the reliable stabilization of cylinder efficient.Speed of welding is fast；Spatter is less, can directly be assembled after cleaning, positioner strong adaptability.
Description
Technical field：
The utility model is related to a kind of piston and the new hydraulic cylinder piston body coupled of piston rod.
Background technology：
Hydraulic cylinder is the executive component in hydraulic system, is generally used for realizing linear motion or swings.Piston and piston rod
It is the important component of hydraulic cylinder, there are a variety of connecting modes, the quality of its structure and quality directly affects hydraulic cylinder performance
And service life.
At present, the connected mode of hydraulic cylinder piston and piston rod is a lot, and common hydraulic cylinder piston joins with piston rod
The mode of connecing has：Thread connection, keyway connection, weld connection.What is had is complicated, and long processing time cost is high, and some work is not
Reliably, it is non-dismountable.Wherein welded connection has sealing and anastomosis concurrently, while the cost-effective work of material can be saved by having
With application is more and more wider, but existing weld connection technique also has weak point：
1st, piston and piston rod coordinate for gap, and piston has certain bounce after welding, and the job stability of oil cylinder is obtained not
To guarantee, oil cylinder service life is influenceed, higher oil cylinder is required to axiality, using restricted, as shown in Figure 2.
2nd, piston is positioned by the step on piston rod, and piston rod needs first turnery processing step, as shown in Figure 3.
3rd, weld connection uses carbon dioxide gas arc welding, more, the piece surface after welding of welding process splashing
Welding slag is more, does not reach matching requirements, it is impossible to assembled immediately.Hydraulic jack needs higher cleannes and ensured, to protect
Oil cylinder cleaning inside degree is demonstrate,proved, piston body commissure is by the way of turning, turning face of weld and both sides certain limit, remove table
Face welding slag and floating ash.The many road turning processes of this technique, also extend the manufacturing time of whole oil cylinder.
The content of the invention：
To overcome the defect of prior art, the purpose of this utility model is to provide a kind of piston and piston rod is new couples
Hydraulic cylinder piston body, including the piston that can be moved reciprocatingly in cylinder barrel and formed a fixed connection and synchronous with the piston
The piston rod of motion, the piston body dependable performance, easily manufactured, the axiality height of piston and piston rod.
The utility model solves technical problem and adopted the following technical scheme that：
A kind of piston and the new hydraulic cylinder piston body coupled of piston rod, the piston body include piston and coaxial assembling
In the piston rod of the piston center hole, the piston hot charging is on the piston rod, also, the end-face central hole of the piston
Use and be welded to connect between position and the periphery of piston rod.
The piston body also includes coaxially being assemblied in stop collar on the piston rod, the stop collar internal chamber wall with
Protective case is additionally provided between the periphery of the piston rod, the protective case is embedded in the inwall of the stop collar.
One end end of the stop collar away from the piston is provided with screwed hole of centre, sets what is coordinated with the screwed hole
Adjusting screw carries out being equipped with locking nut in axially position, the adjusting screw to the piston rod.
Compared with the prior art, the beneficial effects of the utility model are embodied in：
Welded between piston and piston rod after hot charging, sealing property and axiality are good；Piston bounce is small after welding, can
Ensure piston body axiality, it is ensured that the reliable stabilization of cylinder efficient.Speed of welding is fast；Spatter is less, can be straight after cleaning
Tipping is matched somebody with somebody, positioner strong adaptability.
It is simple in construction, material is saved, manufacturing time has been saved, use cost is reduced, it is easy to promoted the use of.
Piston is with stopping means hot charging to piston rod, and stopping means strong adaptability, piston rod is not required to reprocess step.
Using high-speed welding technology, high-speed welding efficiency is more than 3 times of common CO 2 gas shielded welding.
Spatter does not almost have, and the floating ash in surface need to only be cleaned and can just removed after welding, it is not necessary to which turning process ensures clear
Cleanliness, improves efficiency, saves the time.
Brief description of the drawings：
Fig. 1 is structural representation of the present utility model；Fig. 2,3 be existing hydraulic cylinder piston body structural representation.
Label in figure：1 piston rod, 2 pistons, 3 protective cases, 4 stop collars, 5 adjusting screws, 6 locking nuts.
Below by way of embodiment, and with reference to accompanying drawing, the utility model is described in further detail.
Embodiment：
Below by way of embodiment, and with reference to accompanying drawing, the utility model is described in further detail, makes the utility model
Advantages and features can be easier to be realized, so as to make apparent clear and definite boundary to protection domain of the present utility model
It is fixed.
Embodiment：With reference to Fig. 1, the hydraulic cylinder piston body of the present embodiment, its piston uses new welding with piston rod
Mode couples, and the piston body includes piston 2 and the coaxial piston rod 1 for being assemblied in piston center hole, and the hot charging of piston 2 is in piston
On bar 1, also, using being welded to connect between the end-face central hole position of piston 2 and the periphery of piston rod.
The piston body also includes the stop collar 4 being coaxially assemblied on piston rod 1, in internal chamber wall and the piston rod 1 of stop collar 4
Periphery between be additionally provided with protective case 3, wherein, protective case 3 is embedded in the inwall of stop collar 4.
Screwed hole of centre is provided with one end end of the stop collar 4 away from piston, the adjustment spiral shell coordinated with the screwed hole is set
5 pairs of piston rods 1 of nail carry out axially position, and locking nut 6 is equipped with adjusting screw 5.
Process：Piston rod 1 is positioned using stop collar 4, by the axial location of the regulating piston bar 1 of adjusting screw 5, is used
Locking nut 6 is locked, and piston 2 using weld job is carried out again in heating expansion rear enclosure to piston rod 1, using high-speed welding skill
Art.Welding machine selects import high speed welding machine, and protective gas ratio is adjusted to 92% argon gas, and 8% carbon dioxide, spatter is less,
Face of weld welding slag does not need turning to remove.
Claims (3)
1. a kind of piston and the new hydraulic cylinder piston body coupled of piston rod, the piston body include piston (2) and coaxial dress
Piston rod (1) assigned in the piston center hole, it is characterised in that piston (2) hot charging on the piston rod (1), and
And, use and be welded to connect between the end-face central hole position of the piston (2) and the periphery of piston rod.
2. a kind of piston according to claim 1 and the new hydraulic cylinder piston body coupled of piston rod, it is characterised in that institute
Stating piston body also includes coaxially being assemblied in stop collar (4) on the piston rod (1), the stop collar (4) internal chamber wall with
Protective case (3) is additionally provided between the periphery of the piston rod (1), the protective case (3) is embedded in the stop collar (4)
In inwall.
3. a kind of piston according to claim 2 and the new hydraulic cylinder piston body coupled of piston rod, it is characterised in that institute
State one end end of the stop collar (4) away from the piston and be provided with screwed hole of centre, the adjustment spiral shell coordinated with the screwed hole is set
(5) are followed closely the piston rod (1) is carried out to be equipped with locking nut (6) on axially position, the adjusting screw (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720075287.3U CN206386334U (en) | 2017-01-19 | 2017-01-19 | A kind of piston and the new hydraulic cylinder piston body coupled of piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720075287.3U CN206386334U (en) | 2017-01-19 | 2017-01-19 | A kind of piston and the new hydraulic cylinder piston body coupled of piston rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206386334U true CN206386334U (en) | 2017-08-08 |
Family
ID=59494767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720075287.3U Expired - Fee Related CN206386334U (en) | 2017-01-19 | 2017-01-19 | A kind of piston and the new hydraulic cylinder piston body coupled of piston rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206386334U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111975302A (en) * | 2020-08-26 | 2020-11-24 | 重庆川仪调节阀有限公司 | Machining method based on sleeve type valve plug part |
-
2017
- 2017-01-19 CN CN201720075287.3U patent/CN206386334U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111975302A (en) * | 2020-08-26 | 2020-11-24 | 重庆川仪调节阀有限公司 | Machining method based on sleeve type valve plug part |
| CN111975302B (en) * | 2020-08-26 | 2021-10-26 | 重庆川仪调节阀有限公司 | Machining method based on sleeve type valve plug part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Pneumatic cylinder piston body of piston and novel hookup of piston rod Effective date of registration: 20181012 Granted publication date: 20170808 Pledgee: Hefei high tech Company limited by guarantee Pledgor: Hefei Liheng Hydraulic System Co., Ltd. Registration number: 2018340000550 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170808 Termination date: 20210119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |