CN201077125Y

CN201077125Y - Automatically tensioning slowly-releasing control device for prestressed concrete switch sleeper

Info

Publication number: CN201077125Y
Application number: CNU2007200257779U
Authority: CN
Inventors: 姜忠仁; 韩站锋; 李广坤
Original assignee: China Railway 14th Bureau Group Co Ltd
Current assignee: China Railway 14th Bureau Group Co Ltd
Priority date: 2007-08-06
Filing date: 2007-08-06
Publication date: 2008-06-25
Anticipated expiration: 2017-08-06

Abstract

The utility model provides a control device of prestressing concrete turnout sleeper for automatically tensioning and slowly loosing, comprising a tensioning end worktable, a producing pedestal and a loosing end worktable. A first jack and a second jack are arranged on the tensioning end worktable respectively, wherein, the first jack is connected with a first oil pump and the second jack is connected with a second oil pump. A first displacement sensor is arranged on the first jack and a second displacement sensor is arranged on the second jack. A first force sensor is arranged on the left side of the first jack and a second force sensor is arranged on the left side of the second jack. The first force sensor and the second force sensor are connected with a console by wires respectively and a reinforced fixer is arranged on the loosing end worktable. The utility model can achieve full automatic control of the tensioning device and the whole tensioning process of the prestressing can be completed by pressing the keys, so the utility model has the advantages of reducing the labor intensity and improving the safety. The whole tensioning process of the prestressing is measured by computer automatically and the tensioning force is controlled, thereby, the tensioning precision and the work efficiency are improved greatly.

Description

A control device is slowly put in the automatic stretch-draw of PRESTRESSED CONCRETE TURNOUT SLEEPERS

Technical field

The utility model relates to the device that in the switch tie production process prestressed component is carried out autofrettage, specifically is that a control device is slowly put in the automatic stretch-draw of a kind of PRESTRESSED CONCRETE TURNOUT SLEEPERS.

Background technology

In the work progress of switch tie, to the stretch-draw of deformed bar and put that to open be the critical process that whole switch tie is produced.In switch tie production process in the past, tension process and put Zhang Gong's preface and be generally manually-operated promptly adopts and manually starts oil pump, controls by oil pressure gauge, but the shortcoming that this kind method exists is: manually-operated oil pump control stretching force is accurate inadequately, influences product quality; Manually measure the tension of prestressed tendon stretch value and have problems such as error in reading is big, measuring process is slow, feedback information is inaccurate with testing tool; Expend more manpower, less economical; Manually-operated, potential safety hazard is bigger.

Summary of the invention

The purpose of this utility model is, provide the automatic stretch-draw of a kind of PRESTRESSED CONCRETE TURNOUT SLEEPERS slowly to put a control device, it can be controlled the stretch-draw of presstressed reinforcing steel automatically and slowly put and open in the PRESTRESSED CONCRETE TURNOUT SLEEPERS work progress, automatically monitor the stressed and stretch value of presstressed reinforcing steel, and stressing conditions and stretch value signal in time fed back to computer console, computer console is controlled jack tension power according to default technical indicator by oil pump, thereby realize promptly and accurately measurement and control stretching force, omnidistance by computer controlled automatic, save a large amount of manpowers, significantly increase work efficiency, improve the working environment of workers simultaneously, avoid the generation of security incident.

The utility model for achieving the above object, be achieved through the following technical solutions: it comprises stretch-draw end workbench, produce pedestal and put an end workbench, first jack and second jack are installed respectively on the stretch-draw end workbench, first jack is driven by first oil pump, on the first oil pump oil circuit first magnetic valve is set, second jack is driven by second oil pump, on the second oil pump oil circuit second magnetic valve is set, first magnetic valve all is connected with computer console by lead with second magnetic valve, first displacement transducer is installed on first jack, second displacement transducer is installed on second jack, first displacement transducer all is connected with computer console by lead with second displacement transducer, the first jack left end is provided with the first power sensor, the second jack left end is provided with the second power sensor, and the first power sensor is connected with computer console by lead respectively with the second power sensor.Put the first reinforcing bar fixator and the second reinforcing bar fixator are installed respectively on the end workbench.Stretch-draw end workbench left end is installed first ground tackle and second ground tackle respectively.First ground tackle and second ground tackle are installed respectively on the stretch-draw end workbench.Put an end workbench right-hand member the 3rd ground tackle and the 4th ground tackle are installed respectively.The 3rd ground tackle left end is connected with the first reinforcing bar fixator right-hand member, and the 4th ground tackle left end is connected with the second reinforcing bar fixator right-hand member.

Advantage of the present utility model is: it can realize the Automatic Control of tensioning equipment, makes whole prestressed stretch-draw process only need button just can finish, and reduces labour intensity, improves security; Whole prestressed stretch-draw process adopts computer automatic analysis and stretching force control, has improved stretch-draw precision and operating efficiency greatly; Avoid repeatedly the manual testing to adjust; And the computer remote that can realize the presstressed reinforcing steel construction is controlled; Computer console can store and print record stretching force and Extension Values of Prestress Reinforcements automatically, guarantees the accuracy of acceptance report; The utility model can also make the presstressed reinforcing steel stretching with each switch tie in the mould keep same intensity, makes things convenient for the production of specific position sleeper, improves sleeper production work efficient.

Description of drawings

Accompanying drawing 1 is a structural representation of the present utility model.

The specific embodiment

4 is stretch-draw end workbench among the figure, the 3rd, produce pedestal, the 2nd, put an end workbench, first jack 45 and second jack 46 are installed respectively on the stretch-draw end workbench 4, first jack 45 is connected with first oil pump 5, on first oil pump, 5 oil circuits first magnetic valve 51 is set, second jack 46 is connected with second oil pump 6, on second oil pump, 6 oil circuits second magnetic valve 61 is set, first magnetic valve 51 all is connected with Computer Control Unit 7 by lead with second magnetic valve 61, first displacement transducer 47 is installed on first jack 45, second displacement transducer 48 is installed on second jack 46, first displacement transducer 47 all is connected with computer console 7 by lead with second displacement transducer 48, first jack, 45 left ends are provided with the first power sensor 43, second jack, 46 left ends are provided with the second power sensor, 44, the first power sensors 43 and are connected with computer console 7 by lead respectively with the second power sensor 44.Use for convenient, first jack 45 and the first power sensor 43 can be made into one, and second jack 46 and the second power sensor 44 can be made into one.Put the first reinforcing bar fixator 21 and the second reinforcing bar fixator 22 are installed respectively on the end workbench 2.In order to prevent tension of prestressed tendon end retraction, first ground tackle 41 and second ground tackle 42 are installed respectively on the stretch-draw end workbench 4, first ground tackle 41 is corresponding with first jack 45, second ground tackle 42 is corresponding with second jack 46, first ground tackle, 41 right-hand members contact with the first power sensor, 43 left ends, and second ground tackle, 42 right-hand members contact with the second power sensor, 44 right-hand members.For preventing that presstressed reinforcing steel from putting the end retraction, put that the 3rd ground tackle 23 can be installed respectively on the end workbench 2 and the 4th ground tackle 24, the three ground tackles 23 are corresponding with the first reinforcing bar fixator 21, the 4th ground tackle 24 is corresponding with the second reinforcing bar fixator 22.Put an end and produce skew in order to prevent presstressed reinforcing steel, the 3rd ground tackle 23 left ends can be connected with the first reinforcing bar fixator, 21 right-hand members, the 4th ground tackle 24 left ends can be connected with the second reinforcing bar fixator, 22 right-hand members, certainly it is also passable not link together, reinforcing bar produces skew when the stretch-draw but ground tackle and reinforcing bar fixator separated easily, so we preferably are connected the 3rd ground tackle 23 left ends with the first reinforcing bar fixator, 21 right-hand members, the 4th ground tackle 24 left ends are connected with the second reinforcing bar fixator, 22 right-hand members.

During use, earlier first reinforcing bar 1 being put Zhang Duan is fixed on the first reinforcing bar fixator 21, pass the 3rd ground tackle 23 then first reinforcing bar 1 is put an end anchoring firmly, first reinforcing bar, 1 working position is placed in first mould 31 of producing pedestal 3, first reinforcing bar, 1 stretch-draw end passes first ground tackle 41 and is fixed on then in first jack 45, and the first power sensor 43 is installed on first reinforcing bar, the 1 stretch-draw end.Second reinforcing bar 11 is put Zhang Duan and is fixed on the second reinforcing bar fixator 22, pass the 4th ground tackle 24 then second reinforcing bar 11 is put an end anchoring firmly, second reinforcing bar, 11 working positions are placed in second mould 32 of producing pedestal 3, and second reinforcing bar, 11 stretch-draw ends pass second ground tackle 42 and are fixed on then in second jack 46.

During construction, set the stretch value of tension stress value and presstressed reinforcing steel earlier by the operation interface input of computer console 7, open the automatic stretch-draw of PRESTRESSED CONCRETE TURNOUT SLEEPERS then and slowly put a control device, computer console 7 sends signal respectively to first magnetic valve 51 and second magnetic valve 61 respectively, open

first oil pump

5 and 6 pressurizations of second oil pump respectively, and then pressurize to first reinforcing bar 1 by first jack 45 respectively, second jack 46 is to 11 pressurizations of second reinforcing bar.During tension of prestressed tendon, the first power sensor 43 transfers signals to computer console 7 with first reinforcing bar, 1 suffered stretching force by lead, the second power sensor 44 transfers signals to computer console 7 with second reinforcing bar, 11 suffered stretching forces by lead, first displacement transducer 47 is transferred to computer console 7, the second displacement transducers 48 with the displacement of first jack 45 by lead the displacement of second jack 46 is transferred to computer console 7 by lead.7 pairs of above-mentioned signals of computer console carry out data and handle, store and show synchronously.When stretching force reach predetermined value, when Extension Values of Prestress Reinforcements reaches predetermined value, computer console also sends shutdown signals to first magnetic valve 51 and second magnetic valve 61 respectively, stops the pressurization of first oil pump 5 and second oil pump 6.

Claims

1. a control device is slowly put in the automatic stretch-draw of PRESTRESSED CONCRETE TURNOUT SLEEPERS, comprise stretch-draw end workbench (4), produce pedestal (3) and put an end workbench (2), it is characterized in that: first jack (45) and second jack (46) are set on the stretch-draw end workbench (4), first jack (45) is connected with first oil pump (5), first oil pump (5) is gone up first magnetic valve (51) is installed, second jack (46) is connected with second oil pump (6), second magnetic valve (61) is installed on second oil pump (6) oil circuit, first magnetic valve (51) is connected with computer console (7) by lead respectively with second magnetic valve (61), first jack (45) is gone up first displacement transducer (47) is installed, second jack (46) is gone up second displacement transducer (48) is installed, first displacement transducer (47) is connected with computer console (7) by lead respectively with second displacement transducer (48), first jack (45) left end is provided with the first power sensor (43), second jack (46) left end is provided with the second power sensor (44), the first power sensor (43) is connected with computer console (7) by lead respectively with the second power sensor (44), puts the first reinforcing bar fixator (21) and the second reinforcing bar fixator (22) are set on the end workbench (2).

2. a control device is slowly put in the automatic stretch-draw of a kind of PRESTRESSED CONCRETE TURNOUT SLEEPERS according to claim 1, it is characterized in that: stretch-draw end workbench (4) left end is installed first ground tackle (41) and second ground tackle (42) respectively.

3. a control device is slowly put in the automatic stretch-draw of a kind of PRESTRESSED CONCRETE TURNOUT SLEEPERS according to claim 1, it is characterized in that: put end workbench (a 2) right-hand member the 3rd ground tackle (23) and the 4th ground tackle (24) are installed respectively.

4. a control device is slowly put in the automatic stretch-draw of a kind of PRESTRESSED CONCRETE TURNOUT SLEEPERS according to claim 3, it is characterized in that: the 3rd ground tackle (23) left end is connected with first reinforcing bar fixator (21) right-hand member, and the 4th ground tackle (24) left end is connected with second reinforcing bar fixator (22) right-hand member.