CN201908891U - Numerically-controlled front-clamping type oil cylinder - Google Patents
Numerically-controlled front-clamping type oil cylinder Download PDFInfo
- Publication number
- CN201908891U CN201908891U CN2011200136906U CN201120013690U CN201908891U CN 201908891 U CN201908891 U CN 201908891U CN 2011200136906 U CN2011200136906 U CN 2011200136906U CN 201120013690 U CN201120013690 U CN 201120013690U CN 201908891 U CN201908891 U CN 201908891U
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- China
- Prior art keywords
- oil cylinder
- pressure
- oil
- displacement transducer
- numerically
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Abstract
The utility model discloses a numerically-controlled front-clamping type oil cylinder, which comprises an oil cylinder, wherein a hydraulic pressure sensor and a displacement sensor are arranged on the oil cylinder, the hydraulic pressure sensor is connected with an independent sealed oil-pressure measuring cavity, a pressure-measuring plunger piston and a central rod which are connected together are arranged in the sealed oil-pressure measuring cavity, and an inner stop ring is arranged between the pressure-measuring plunger piston and the central rod; pressure-measuring oil is filled in a sealed oil-pressure measuring cavity body; and the displacement sensor is connected with an anchor head which synchronously moves relative to an oil-cylinder piston. In the numerically-controlled front-clamping type oil cylinder provided by the utility model, by integrating a force-measuring device and a pressure-measuring device into the oil cylinder, the accurate control for a tensioning force and a tensioning elongation can be realized, and the numerically-controlled front-clamping type oil cylinder is convenient for better and accurately controlling the pre-stress tension of bridge and building construction.
Description
Technical field
The utility model relates to a kind of oil cylinder, relates in particular to the preceding cassette oil cylinder of a kind of numerical control.
Background technique
Preceding cassette stretch-draw oil cylinder is mainly used in the prestress wire stretch-draw of prestressed concrete members such as bridge, building.This type of oil cylinder of each manufacturer production does not all have displacement and stretching force to detect and output at present, this has just caused the stretching force of every bundle steel strand and stretching extension amount need carry out artificial reading and record data, easily measured and inaccurate these artificial final quality of factor affecting prestressed component of record data.Therefore be necessary to design a kind of preceding cassette numerical control oil cylinder, be used for the accurate control of stretching force and stretching extension amount and the output of stretch-draw data.
Summary of the invention
Technical problem to be solved in the utility model provides the preceding cassette oil cylinder of a kind of numerical control, can realize the accurate control of stretching force and stretching extension amount.
The utility model is to solve the problems of the technologies described above the technological scheme that adopts to provide the preceding cassette oil cylinder of a kind of numerical control, comprise oil cylinder, wherein, described oil cylinder is provided with hydraulic pressure sensor and displacement transducer, described hydraulic pressure sensor is surveyed the oil pressure chamber with sealing independently and is linked to each other, described sealing is surveyed in the oil pressure chamber and is provided with pressure measurement plunger and the center-pole that is connected together, and is provided with interior stopper ring between described pressure measurement plunger and the center-pole; Filling pressure measurement oil in the oil pressure cavity is surveyed in described sealing; Described displacement transducer links to each other with the anchor head that relative oil cylinder piston is done to be synchronized with the movement.
Cassette oil cylinder before the above-mentioned numerical control, wherein, described displacement transducer is fixed in the handle, and the external part of described displacement transducer links to each other with anchor head by the sensor protection cover.
Cassette oil cylinder before the above-mentioned numerical control, wherein, the output signal of described pressure transducer and displacement transducer is integrated on the aviation plug, and described aviation plug is connected with the stretch-draw isochronous controller by signaling line.
The utility model contrast prior art has following beneficial effect: cassette oil cylinder before the numerical control that the utility model provides, by forcemeter and pressure-detecting device are integrated in the oil cylinder, can realize the accurate control of stretching force and stretching extension amount, be convenient to better the accurately prestressed stretch-draw of control bridge, construction.
Description of drawings
Fig. 1 is a cassette cylinder structure schematic representation before the utility model numerical control.
Among the figure:
Stopper ring in 1 hydraulic pressure sensor, the 2 pressure measurement plungers 3
4 oil cylinders, 5 center-poles, 6 piston rods
7 displacement transducers, 8 protecting jackets, 9 handles
10 aviation plugs, 11 anchor sheets, 12 anchor rings
13 anchor heads
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
Fig. 1 is a cassette cylinder structure schematic representation before the utility model numerical control.
See also Fig. 1, the cassette oil cylinder comprises oil cylinder 4 before the numerical control that the utility model provides, described oil cylinder 4 is provided with the dynamometry unit and location moves the unit, described dynamometry unit is made up of hydraulic pressure sensor 1, pressure measurement plunger 2, interior stopper ring 3 and center-pole 5, pressure measurement plunger 2, interior stopper ring 3 and center-pole 5 constitute one independent survey oil pressure chamber, hydraulic pressure sensor then therewith cavity be connected; Filling pressure measurement oil in the pressure measurement cavity; Described location moves the unit by being fixed on displacement transducer 7 in the handle 9, forming with the external part fixed sensing protecting jacket 8 and the anchor head 13 of displacement transducer; The extending amount of stretch-draw oil cylinder piston bar and the extending amount of displacement transducer external part are consistent.The output signal of pressure transducer and displacement transducer is integrated on the aviation plug 10, is connected with the stretch-draw isochronous controller by signaling line.
This numerical control stretch-draw oil cylinder can accurately be controlled stretching force and stretching extension amount by the stretch-draw controller, and the stretch-draw data can be exported.The pressure measurement mode difference of the pressure measurement mode of independent pressure measuring unit and oil cylinder active chamber is: this pressure measurement structure is avoided the inaccurate shortcoming of pressure measurement pressure that causes because of active chamber seal ring, sealing surface wear.The independent seal ring of surveying the oil pressure chamber almost remains static, and has reduced the wearing and tearing of seal ring and cylinder body, and the degree of accuracy of pressure measurement can be greatly improved.
Cassette oil cylinder stretch-draw pressure measurement process before the numerical control that the utility model provides: steel strand penetrate cylinder bore, anchor sheet 11 under spring action with the preliminary interlock of steel strand.Pressure oil enters oil cylinder rodless cavity, and piston rod 6 is protruding.Because anchor ring 12 is fixed together with center-pole 5, produce relative movement between anchor head 13 and the anchor ring 12, steel strand are clamped by anchor sheet 11 and stretch because of stretching out of piston rod 6, center-pole 5 is subjected to the reaction pulling force of steel strand, center-pole 5 will drive pressure measurement plunger 2 extruding pressure measurement oil, pressure transducer 1 just can detect to be surveyed the pressure in the oil pressure chamber and converts thereof into electrical signal output, draws value of thrust through conversion.
The external part of displacement transducer 7 and anchor head 13 are fixed together, and stretch out with oil cylinder piston 6, and displacement signal output is consistent with the overhang of piston rod.By sensor signal lines pressure and shift value are fed back to control system, realize the output of real-time stretch-draw data.When reaching default power value of control system or shift value, system closes the input of hydraulic oil, and oil cylinder stops stretch-draw, thereby realizes the accurate control of stretching force and stretching extension amount.
Though the utility model discloses as above with preferred embodiment; right its is not in order to limit the utility model; any those skilled in the art; in not breaking away from spirit and scope of the present utility model; when doing a little modification and perfect, therefore protection domain of the present utility model is worked as with being as the criterion that claims were defined.
Claims (3)
1. cassette oil cylinder before the numerical control, comprise oil cylinder (4), it is characterized in that, described oil cylinder (4) is provided with hydraulic pressure sensor (1) and displacement transducer (7), described hydraulic pressure sensor (1) is surveyed the oil pressure chamber with sealing independently and is linked to each other, described sealing is surveyed in the oil pressure chamber and is provided with pressure measurement plunger (2) and the center-pole (5) that is connected together, and is provided with interior stopper ring (3) between described pressure measurement plunger (2) and the center-pole (5); Filling pressure measurement oil in the oil pressure cavity is surveyed in described sealing; Described displacement transducer (7) links to each other with the anchor head (13) that relative oil cylinder piston (6) is done to be synchronized with the movement.
2. cassette oil cylinder before the numerical control as claimed in claim 1 is characterized in that described displacement transducer (7) is fixed in the handle (9), and the external part of described displacement transducer (7) links to each other with anchor head (13) by sensor protection cover (8).
3. cassette oil cylinder before the numerical control as claimed in claim 1, it is characterized in that, described pressure transducer (1) is integrated on the aviation plug (10) with the output signal of displacement transducer (7), and described aviation plug (10) is connected with the stretch-draw isochronous controller by signaling line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200136906U CN201908891U (en) | 2011-01-18 | 2011-01-18 | Numerically-controlled front-clamping type oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200136906U CN201908891U (en) | 2011-01-18 | 2011-01-18 | Numerically-controlled front-clamping type oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201908891U true CN201908891U (en) | 2011-07-27 |
Family
ID=44301094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200136906U Expired - Fee Related CN201908891U (en) | 2011-01-18 | 2011-01-18 | Numerically-controlled front-clamping type oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201908891U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994127A (en) * | 2014-04-25 | 2014-08-20 | 北京航天发射技术研究所 | Oil cylinder linear movement redundancy detection device and control method thereof |
| CN104501689A (en) * | 2014-12-01 | 2015-04-08 | 柳州市桥厦工程管材有限公司 | Displacement ruler protection device with guidance function |
| CN107298281A (en) * | 2017-07-05 | 2017-10-27 | 宁夏天地奔牛实业集团有限公司 | Displacement transducer protector and the belt self-movable foot end that displacement transducer is set |
-
2011
- 2011-01-18 CN CN2011200136906U patent/CN201908891U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994127A (en) * | 2014-04-25 | 2014-08-20 | 北京航天发射技术研究所 | Oil cylinder linear movement redundancy detection device and control method thereof |
| CN103994127B (en) * | 2014-04-25 | 2016-08-17 | 北京航天发射技术研究所 | Oil cylinder straight line motion redundancy detection device and control method thereof |
| CN104501689A (en) * | 2014-12-01 | 2015-04-08 | 柳州市桥厦工程管材有限公司 | Displacement ruler protection device with guidance function |
| CN107298281A (en) * | 2017-07-05 | 2017-10-27 | 宁夏天地奔牛实业集团有限公司 | Displacement transducer protector and the belt self-movable foot end that displacement transducer is set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20160118 |
|
| EXPY | Termination of patent right or utility model |