CN2127441Y - Prestressing tension hydraulic control valve - Google Patents
Prestressing tension hydraulic control valve Download PDFInfo
- Publication number
- CN2127441Y CN2127441Y CN 92227111 CN92227111U CN2127441Y CN 2127441 Y CN2127441 Y CN 2127441Y CN 92227111 CN92227111 CN 92227111 CN 92227111 U CN92227111 U CN 92227111U CN 2127441 Y CN2127441 Y CN 2127441Y
- Authority
- CN
- China
- Prior art keywords
- steel balls
- valve
- hydraulic
- hydraulic control
- control valve
- 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 is used for the hydraulic control of a prestressing tension hydraulic tool for reinforcing bars in the building industry. The utility model comprises an integrated control oil path composed of a change valve, a hydraulic lock and a one-way valve. The purpose of the utility model is to utilize an electric oil pump to solve the technological requirements of operating and controlling the whole stretching process of the prestressing tension hydraulic tool for reinforcing bars, and one control handle is operated at three different functional positions for continuous stretching technological requirements, such as stretching out of a cylinder, top anchor locking, unloading for returning to the cylinder, etc. One manual oil pump is omitted for the equipment, one worker is reduced in the operating use, the operation is simple and convenient, and labor intensity is reduced.
Description
The utility model is used for the hydraulic control system of the prestressed, reinforced stretch-draw hydraulic tools of building industry.
In building industry, more and more widely adopt prestressed, reinforced structure now, but the power source of existing prestressed, reinforced stretch-draw hydraulic tools must be equipped with an electric oil pump and a hand oil pump.The control section of such stretch-draw hydraulic tools must bring complexity in manipulating.Should operate two Joysticks on the electric oil pump, also will operate hand oil pump and control switch, leaveing no choice but that three people manipulate can not.What is more, because complicated operation, some supporting stretch-draw hydraulic tools has been abandoned the hydraulic pressure roof pressure anchoring locking method of effective control steel strand amount of recovery, and adopts elasticity roof pressure and spacing roof pressure anchoring locking method, certainly will answer the application development of tension technology to play obstructive action to the reinforcing bar top.
The purpose of this utility model is to utilize an electric oil pump to solve the operation control of prestressed, reinforced stretch-draw hydraulic tools, and only operating a Joystick finishes stretch-draw and goes out cylinder on three different position of function, top anchor locking, unload back continuously tensioning technological requirements such as cylinder, thereby on equipment, save a hand oil pump, in manipulating, deduct a people, and simple and convenient and reduce labor intensity.
Tension sequence of the present utility model, be top anchor locking when making the prestressing force of stretch-draw steel strand reach reference value, obtain the control of strictness to the amount of recovery that makes steel strand, improved prestressed precision, the appearance quality of anchor sheet locking simultaneously also is improved, and the method than former routine in operation control is much simple.
The integrated control oil channel that the utility model is made up of four parts such as selector valve, hydraulic lock, pressure regulator valve and one-way valve.
Fig. 1 is the selector valve sectional view.
Fig. 2 is the hydraulic lock sectional view.
Fig. 3 is the one-way valve view.
Fig. 4 is asphalt principle figure.
Selector valve (35) is made up of following part:
Lock nut (1), double-screw bolt (2), platen (3), φ 4 steel balls (4), handle (5), swash plate (6), spring seat (7), Returnning spring (8), sealing gasket d12(9), φ 5 screw column plug sleeves (10), φ 5 plungers (11), φ 8 steel balls (12), push rod (13), little spring (12), sealing gasket (17), bolt (18), valve body (19).
Hydraulic lock (36) is made up of following part:
Screw (20), sealing gasket D10(21), φ 6 steel balls (22), plunger (23), bolt (18), sealing gasket (17), valve body (19).
Unidirectional (34) are made up of following part:
Regulator bolts (24), O RunddichtringO D14 * 2.4(25), pressure adjusting spring (26), spring seat (27), φ 5 steel balls (28), φ 6 steel balls (22), valve body (19).
Screw (20), sealing gasket D10(21), φ 6 steel balls (22), valve body (19).
Other parts also have: gauge stand (14), sealing gasket (15), screw (29) etc.
Describe the process of the present utility model that realizes in detail below in conjunction with accompanying drawing;
Working oil from oil pump enters oiler (30) after selector valve (35) is arrived in one-way valve (34) back, when handle (39) is removed to position of function (31), selector valve (35) indicated pressure oil enters the back cavity of tension cylinder to oil circuit (37) by hydraulic lock (36), so oil cylinder walking (promptly going out cylinder) realizes steel strand prestress stretch-draw.When reaching steel strand and answer the stretching force reference value in advance (by the oil pressure reading of monitor pressures epiphase correspondence), handle (39) is carried to position of function (32).At this moment, pressure oil just is instructed to zero load to selector valve (35) and returns fuel tank, but is preserved stretch-draw prestressing force by the pressure oil of hydraulic lock (36) locking oil circuit (37).Handle (39) is removed to position of function (33) again, and pressure oil is indicated to oil circuit (38) to selector valve (35), and oil circuit (38) divides two-way, and pressure oil enters the ante-chamber and the top pressing device of line scuffing of cylinder bore simultaneously.Because the pressure oil of tension cylinder back cavity is pinned by hydraulic lock (36), the pressure oil of controlling before tension cylinder can only boost gradually, pressure oil to top pressing device then promotes the anchor locking of small piston top by the steel strand of stretch-draw, when top anchor coupling mechanism force reaches definite value, oil circuit (38) just open hydraulic lock (36) at power oil, the pressure oil of oil circuit (37) unloads rapidly, and the pressure oil of oil circuit (38) works on, and the fluid of realizing back cylinder and ordering about unloading in the oil circuit (37) returns fuel tank.Operating grip can be finished out cylinder stretch-draw and so forth, the full manufacturing processs of steel strand prestress stretch-draw such as oil pump zero load and locking of top anchor and time cylinder.
Claims (4)
1, a kind of novel hydraulic control valve, form by selector valve (35), hydraulic lock (36) and one-way valve (34), it is characterized in that the handle (39) on the selector valve (35) can move three positions that are positioned at position of function 31,32 and 33, control the pressure oil that comes from one-way valve (34) to oil circuit (37) or (38) input the time or advance or move back or lock with this.
2, hydraulic control valve according to claim 1, it is characterized in that commutation oil (35), is to be made of following component: lock nut (1), double-screw bolt (2), platen (3), φ 4 steel balls (4), handle (5), swash plate (6), spring seat (7), Returnning spring (8), sealing gasket d12(9), φ 5 screw column plug sleeves (10), φ 5 plungers (11), φ 8 steel balls (12), push rod (13), little spring (12), sealing gasket (17), bolt (18), valve body (19).
3, hydraulic control valve according to claim 1 is characterized in that, hydraulic lock (36) is to be made of following component: screw (20), sealing gasket D10(21), φ 6 steel balls (22), valve body (19).
4, hydraulic control valve according to claim 1 is characterized in that one-way valve (34) is to be made of following component: regulator bolts (24), O RunddichtringO D14 * 2.4(25), pressure adjusting spring (26), spring seat (27), φ 5 steel balls (28), φ 6 steel balls (22), valve body (19).
Screw (20), sealing gasket D10(21), φ 6 steel balls (22), valve body (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92227111 CN2127441Y (en) | 1992-07-13 | 1992-07-13 | Prestressing tension hydraulic control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92227111 CN2127441Y (en) | 1992-07-13 | 1992-07-13 | Prestressing tension hydraulic control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2127441Y true CN2127441Y (en) | 1993-02-24 |
Family
ID=33771172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92227111 Expired - Fee Related CN2127441Y (en) | 1992-07-13 | 1992-07-13 | Prestressing tension hydraulic control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2127441Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226694A (en) * | 2014-09-30 | 2014-12-24 | 中色科技股份有限公司 | Cast rolling machine prestress control system |
| CN114321035A (en) * | 2021-12-29 | 2022-04-12 | 筑友智造智能科技有限公司 | Intelligent tensioning equipment for prestressed reinforcement |
-
1992
- 1992-07-13 CN CN 92227111 patent/CN2127441Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226694A (en) * | 2014-09-30 | 2014-12-24 | 中色科技股份有限公司 | Cast rolling machine prestress control system |
| CN104226694B (en) * | 2014-09-30 | 2017-02-15 | 中色科技股份有限公司 | Cast rolling machine prestress control system |
| CN114321035A (en) * | 2021-12-29 | 2022-04-12 | 筑友智造智能科技有限公司 | Intelligent tensioning equipment for prestressed reinforcement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |