CN206377092U - A kind of fine positioning hydraulic jack - Google Patents
A kind of fine positioning hydraulic jack Download PDFInfo
- Publication number
- CN206377092U CN206377092U CN201720040274.2U CN201720040274U CN206377092U CN 206377092 U CN206377092 U CN 206377092U CN 201720040274 U CN201720040274 U CN 201720040274U CN 206377092 U CN206377092 U CN 206377092U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- piston
- cylinder barrel
- hydraulic jack
- linear guide
- 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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Abstract
The utility model discloses a kind of fine positioning hydraulic jack, it includes cylinder barrel and the piston in cylinder barrel, piston rod is connected with piston, the bottom of the cylinder barrel is connected with mounting box, displacement transducer is connected with mounting box, the piston rod is equipped with the slip magnet ring that ring set slides on the linear guide and under the drive of piston rod along linear guide provided with the blind hole for being inwardly recessed and supplying the linear guide of displacement transducer to stretch into from its inner extending end portion, the inner extending end of the piston rod.The utility model can accurately control the extension elongation of piston rod, with making simple in construction, easy for installation and the advantageous effect that can accurately control immediately.
Description
Technical field
The utility model is related to a kind of fine positioning hydraulic jack.
Background technology
In metallurgy industry, the middle hired car of conticaster needs multiple oil cylinders and completes lifting action while stretching, and is rising
Holding is acted afterwards, and frictional force, Inner discharges difference due to hydraulic jack, the piston rod of each hydraulic jack stretch out displacement also not
Together, cause it is middle hired car roll, molten steel crystal it is uneven, the molten steel of spilling can also cause danger to surrounding people's equipment, that is, use
Existing hydraulic jack can not real-time monitor the stretching displacement of piston rod, and be controlled, so as to be difficult to ensure that multiple hydraulic pressure
The uniformity of the displacement of oil cylinder, thus it is badly in need of the hydraulic jack that a kind of piston rod of energy Precise Control of Oil cylinder stretches out displacement.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of piston of energy Precise Control of Oil cylinder for drawbacks described above
Bar stretches out the fine positioning hydraulic jack of displacement.
In order to solve the above-mentioned technical problem, the utility model provides a kind of fine positioning hydraulic jack of following structure, bag
Include and be connected with piston rod on cylinder barrel and the piston in cylinder barrel, piston, it is structurally characterized in that：The bottom connection of the cylinder barrel
Have and displacement transducer is connected with mounting box, mounting box, the piston rod, which is provided with, to be inwardly recessed from its inner extending end portion and for position
The blind hole that the linear guide of displacement sensor is stretched into, the inner extending end of the piston rod is equipped with ring set on the linear guide and in work
The slip magnet ring slid under the drive of stopper rod along linear guide.
The inner extending end of piston rod is provided with the counterbore being inwardly recessed from its end, and the slip magnet ring is inlaid in counterbore, sinks
It is also equipped with pressing against the non-magnetic pad and snap ring for sliding magnet ring in hole.
Piston is provided with the through hole installed for piston rod, piston rod and piston install position provided with simultaneously with piston rod and
The attachment screw that piston is spirally connected.
The bottom of cylinder barrel is connected with and the closure plug for blocking cylinder barrel bottom is connected with swivel nut, swivel nut, and closure is provided with beyond the Great Wall
The deep gouge stretched into for extending portion in piston rod, the closure enters flowline provided with what is connected with inner cavity of cylinder beyond the Great Wall.
After said structure, due to being mounted with displacement transducer on cylinder bottom, when piston rod is stretched under the power of hydraulic oil
When going out, slide magnet ring and slid under the drive of piston rod along linear guide, piston can be measured immediately by displacement transducer
The extension elongation of bar, by controlling hydraulic oil to accurately control the extension elongation of piston rod.The non-magnetic pad and card set
Ring can be such that the position of slip magnet ring fixes very much, so as to ensure the linear guide of displacement transducer and slide the displacement between magnet ring
Distance is accurate, the extension elongation of accurate control piston rod；There is provided above-mentioned attachment screw makes the attachment structure of piston rod and piston
It is firm, and attachment screw need not be set in the sidepiece of piston, it is to avoid there is the poorly sealed problem between piston and cylinder body.
In summary, the utility model can accurately control the extension elongation of piston rod, with simple in construction, easy for installation
The advantageous effect that makes and can accurately control immediately.
Brief description of the drawings
Embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of the line A-A section view along along Fig. 1.
Embodiment
As shown in Figures 1 and 2, the fine positioning hydraulic jack that the utility model is provided includes cylinder barrel 1 and installed in cylinder barrel
In piston 2, including cylinder barrel 1 and the piston 2 in cylinder barrel are connected with piston rod 3, the bottom connection of cylinder barrel 1 on piston 2
Have and displacement transducer 5 be connected with mounting box 4, mounting box 4, the piston rod 3 provided with being inwardly recessed from its inner extending end portion and
The blind hole 6 stretched into for the linear guide 51 of displacement transducer 5, the inner extending end of the piston rod 3 is led equipped with ring set in the straight line
The slip magnet ring 7 slid on bar and under the drive of piston rod along linear guide 51, the inner extending end of piston rod 3 is provided with from its end
The counterbore 8 being inwardly recessed, the slip magnet ring 7 is inlaid in counterbore 8, is also equipped with pressing against slip the non-of magnet ring 7 in counterbore and is led
The rear end card for sliding magnet ring 7 and piston rod is close together by magnetic insert 9 and snap ring 10, non-magnetic pad 9 and snap ring 10, piston rod
Slip magnet ring can be driven to be slid along linear guide 5 in movement.In the present embodiment, piston 2 is provided with installs for piston rod 3
Through hole, piston rod 3 and piston 2 install position provided with while the attachment screw 11 being spirally connected with piston rod and piston, connects spiral shell
Nail 11 can install that position ring cloth is multiple along above-mentioned, half screw and work of the above-mentioned screw for installing position setting on piston rod 3
Half screw beyond the Great Wall is collectively constituted, and is installed for convenience, axle platform is set in the interior extending portion section of piston rod, so as to convenient rotation
Be screwed to connect screw 11, the attachment structure of this piston rod and piston is avoided from piston side openings, it is ensured that piston side with
Sealing property between cylinder barrel, improves the service life of the hydraulic jack.
As shown in figure 1, the bottom of cylinder barrel 1, which is connected with swivel nut 12, swivel nut 12, is connected with the closure for blocking the bottom of cylinder barrel 1
Plug 13, above-mentioned mounting box 4 is connected to the rear portion of closure plug 13, and closure plug 13 is provided with the deep gouge stretched into for extending portion in piston rod 3
14, the closure plug 13 enters flowline 15 provided with what is connected with the inner chamber of cylinder barrel 1, and the setting of closure plug and corresponding construction can
Penetrate and position with the linear guide for facilitating displacement transducer 5, and make cylinder structure more compact and reasonable.
Described above is specific constructive form of the present utility model, and the utility model is not restricted to the described embodiments,
For those skilled in the art, equivalent variations and part replacement based on concrete structure on the utility model are all new in this practicality
In the protection domain of type.
Claims (4)
1. a kind of fine positioning hydraulic jack, including cylinder barrel（1）With the piston in cylinder barrel（2）, piston（2）On be connected with work
Stopper rod（3）, it is characterized in that：The cylinder barrel（1）Bottom be connected with mounting box（4）, mounting box（4）Inside it is connected with displacement transducer
（5）, the piston rod（3）It is provided with and is inwardly recessed from its inner extending end portion and supplies displacement transducer（5）Linear guide（51）Stretch
The blind hole entered（6）, the piston rod（3）Inner extending end equipped with ring set on the linear guide and in the drive lower edge of piston rod
Linear guide（51）The slip magnet ring of sliding（7）.
2. fine positioning hydraulic jack as claimed in claim 1, it is characterized in that：The piston rod（3）Inner extending end be provided with from its
The counterbore that end is inwardly recessed（8）, the slip magnet ring（7）It is inlaid in counterbore（8）In, it is also equipped with pressing against slip magnetic in counterbore
Ring（7）Non-magnetic pad（9）And snap ring（10）.
3. fine positioning hydraulic jack as claimed in claim 1 or 2, it is characterized in that：The piston（2）It is provided with and supplies piston rod
（3）The through hole installed, piston rod（3）With piston（2）Install position provided with while the connection spiral shell that is spirally connected with piston rod and piston
Nail（11）.
4. fine positioning hydraulic jack as claimed in claim 1 or 2, it is characterized in that：The cylinder barrel（1）Bottom be connected with swivel nut
（12）, swivel nut（12）On be connected with and block cylinder barrel（1）The closure plug of bottom（13）, closure plug（13）It is provided with and supplies piston rod
（3）The deep gouge that interior extending portion is stretched into（14）, the closure plug（13）It is provided with and cylinder barrel（1）What inner chamber was connected enters flowline
（15）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720040274.2U CN206377092U (en) | 2017-01-13 | 2017-01-13 | A kind of fine positioning hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720040274.2U CN206377092U (en) | 2017-01-13 | 2017-01-13 | A kind of fine positioning hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206377092U true CN206377092U (en) | 2017-08-04 |
Family
ID=59404664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720040274.2U Expired - Fee Related CN206377092U (en) | 2017-01-13 | 2017-01-13 | A kind of fine positioning hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206377092U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533571A (en) * | 2018-07-10 | 2018-09-14 | 无锡福艾德自动化科技有限公司 | A kind of inbuilt displacement sensor |
-
2017
- 2017-01-13 CN CN201720040274.2U patent/CN206377092U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533571A (en) * | 2018-07-10 | 2018-09-14 | 无锡福艾德自动化科技有限公司 | A kind of inbuilt displacement sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170804 Termination date: 20180113 |