CN1103686A - An apparatus for producing prefabricated components from pretensioned prestressed concrete, in particular prestressed concrete sleepers - Google Patents
An apparatus for producing prefabricated components from pretensioned prestressed concrete, in particular prestressed concrete sleepers Download PDFInfo
- Publication number
- CN1103686A CN1103686A CN 93117626 CN93117626A CN1103686A CN 1103686 A CN1103686 A CN 1103686A CN 93117626 CN93117626 CN 93117626 CN 93117626 A CN93117626 A CN 93117626A CN 1103686 A CN1103686 A CN 1103686A
- Authority
- CN
- China
- Prior art keywords
- tensioning
- steel wire
- equipment
- reinforcing bar
- prestressed concrete
- 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.)
- Pending
Links
Images
Landscapes
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
In the prodn of prestressed concrete sleeper, steel wire, which is uncoiled directly from one or several steel wire reels, is first longitudinally inserted into tightening mechanism, then fixed at one end in the forward direction and tightened by the tightener outside the tightening mechanism, and finally cut down by the clipper. Unlick available techn, the operational processes of leading-in, tightening and cutting in the regular length constitute one working station, and thus, the present invention can result in reduced labour strength and less operation period.
Description
The present invention relates to a kind of said as claim 1 preamble, the sort of equipment that is used to make the prestretched prestressed concrete sleeper.
The prestressed concrete sleeper of precast unit form is the very big goods of a kind of output, and the most important thing is of considering of these goods kept its minimum fabrication cost at least, as reducing its manufacturing cost under its quality prerequisite improving.This can be by saving sleeper material, or reduce its cost by the required activity duration aspect of equipment that is used to make these goods.
In the known manufacturing prestressed concrete sleeper, it is very important saving timber.In this sleeper main body, have reinforcing bar, the strain component of a plurality of independent reinforcing ribs such as steel bar or steel band, these strain components on the vertical plane, are to occur simultaneously together mutually in concrete sleeper, and along sleeper longitudinal extension (seeing DE-3832504A1).In this known sleeper, the fixed end of prestressed reinforcement on the sleeper cross section evenly distributes and passing in sleeper is gratifying.Even in the sleeper of wide sleeper two ends and narrow mid portion, need not to increase reinforcement, make to reach a high prestressing force therein.These measures because the sleeper of narrow mid portion has low bending force weak point, obviously reduce the needed reinforcing bar amount of prestressed concrete sleeper.
This known prestressed concrete sleeper can be to have on it on prestressed equipment of tension in advance at the prestressing force bed, makes hardened concrete or back daraf(reciprocal of farad) prestressed concrete.On the prestressing force bed, the reinforcing bar of single tension is anchored through bonding in their ends.For hardened concrete, can save the fixed component that those strain single strain component.But as straining in the manufactured prestressed concrete sleeper with the back, this saving is unavoidable.
Prestressed concrete sleeper is generally made on a long prestressing force bed.When producing prestressed concrete sleeper on this prestressing force bed, at first lay is used for straining injection concrete under the active force.Length according to prestressing force bed or sleeper.Be placed on the prestressing force bed some is framed.After the intact sclerosis of sleeper body, the reinforcing bar between two sleepers is cut off, so the tightening force of the reinforcing bar of tension is released, like this, a tightening force just acts in the sleeper as preload, produces a pre-tensile stress in sleeper.
Replace a tension reinforcing bar is put on the prestressing force bed, and also be known the scheme that it is fixed on prestressing force bed end.This scheme be respectively around the taut wire of sleeper side by side one or more or that place continuously, abut against in the long tight mechanism of so-called steel wire and be tightened up, under this condition, steel wire is put in the concrete.For this reason, combine through the framed and this strainer of respective design (DE3931291C1).At this, the tightening force of tensioning steel wire is that relative strainer is set up, and its advantage is that from demoulding viewpoint immediately, these modules can relatively earlier be opened.Wherein put on sleeper prestressing, just after sleeper hardens fully, just can produce.
In this kind known method, earlier tension is cut into certain-length with steel wire, then it is sent in the strainer, and become whole tensioning apparatus with strainer, with these steel wire tensions by one.These operating procedures will be finished in the different work station.And finish these steps and will expend the big amount of labour.
In order to improve the fixing of by the concrete for making prefabricated component roughly strengthened time reinforcement, in quite long concrete casting injection molding front, dispose a straightening device that is used for the tensioning steel wire on the reel, after stretching operation, these steel wires are put into a kind of known technology (DE3543369A1) in the concrete casting injection molding.For above-mentioned this arrangement, use a draw-gear, along the vertical tractive steel wire of concrete casting injection molding, and be equipped with some devices, so that these steel wires are separated.Because as make prestressed concrete sleeper desired, do not need steel wire is carried out strong tractive, as long as fixedly the simple hold down gag of steel wire can just utilize the feeding roller to apply enough stretching pulling force and utilization.
At above prior art, the objective of the invention is provides a kind of economical production mode adopting tensioning mechanism to make in the prestressed concrete sleeper, and above-mentioned deficiency is improved, simplify and accelerate the steel wire that will strain is sent into the operation of tensioning apparatus, and simplify and accelerate the tension operation.
This purpose of the present invention, the feature of the characteristic by claim 1 realizes.
The further advantage of the present invention can be seen from dependent claims.
Basic thought of the present invention is, unclamps the steel wire of wanting tensioning from one or more steel wire cylinders, by a steel wire guiding device, it sent in the strainer.Guiding device can be located on the strainer.Like this, can be the single steel wire of wanting tensioning with free feeding mode, enter in the strainer on the desired position.In prefabricated component, tension part does not extend in parallel, but extend in a kind of desired mode intersected with each other.Above-mentioned measure is very important.
So the steel wire guiding device is provided with the steel wire gathering sill of some, like this, make to prestressed concrete sleeper guides and orderly simultaneously, sending into of freely tilting extends parallel to each other and cross one another steel wire becomes possibility.After introducing, the steel wire of general requirements is arranged, and is disappeared by above-mentioned measure, and this is because the inclination (Sag) of these steel wires or same gradient is arranged at least all, applies prestressing force and the arrangement of its inclination is disappeared by traction once.
Directly combine with the tensioning steel wire by tensioning apparatus, up to now, the fixation with steel wire device that needs to change on the tension side of each strainer just can be cancelled, and they are replaced by a simple fixation device.Like this, can reduce cost.Can reach time saving effect by strainer and tensioning apparatus all being adopted the fastener of known tensioning steel wire.
Below, in conjunction with the accompanying drawings the present invention is described in more detail, as follows to description of drawings:
Fig. 1 represents part intersection mutually, the prestressed concrete sleeper sketch of the taut wire that partial parallel extends,
Fig. 2 is the prestressed concrete sleeper lateral view,
Fig. 3 is the prestressed concrete sleeper lateral view that III from Fig. 1-III direction is seen,
Fig. 4 is the sectional view in IV from Fig. 1-IV direction cross section,
Fig. 5 is a schematic plan view,
Fig. 6 is equipment one lateral view of the present invention,
Fig. 7 is a reinforcing bar guiding device plan view under the closed situation,
Fig. 8 is VII from Fig. 7-VII direction closed and open situation bottom view,
Fig. 9 is IX from Fig. 7-IX direction cross section closed and open sectional view under the situation,
Figure 10 is the movable external side view that X from Fig. 7-X line is seen the reinforcing bar guiding device.
An embodiment is introduced in Fig. 1-4 signal, and it represents a prestressed concrete sleeper, the guiding situation of sleeper main body 1 and available present device tensioning prestressing force reinforcement.In the present embodiment, sleeper main body 1 has two wide relatively lateral support bodies 2 and 3, their support rails device (not shown), and sleeper main body 1 also has a narrow relatively mid portion 4.The prestressing force reinforcement has 8 straight tension reinforcing bars 5, and these reinforcing bars are represented with a-h, so that can see their present position clearly.
The prestressing force reinforcement has two couples of tension reinforcing bar a, b and e, and f, they are along parallel the passing through of sleeper main body 1 longitudinal direction.In addition, also have two couples of tension reinforcing bar c, d and g, h, they intersect mutually in the centerline of sleeper.Make reinforcing bar 5 end grapplings with mull technique, and evenly separate (see figure 3) on the sleeper end cross-sectional.In sleeper body centerline, the tension reinforcing bar concentrates on (see figure 4) on the vertical axis.Certainly, the reinforcing bar compound mode is except that parallel and intersection, and other compound mode also is fine.This embodiment be have a narrow core 4 with relative wide be attainable to hold part 2 and 3, and available equipment of the present invention is realized.For example, this embodiment just has the prestressing force reinforcement of the taut wire that is parallel to each other, or only at the prestressing force reinforcement of the cross one another tension reinforcing bar of centerline.
In order to use this method, can design and produce a kind of prestressed concrete sleeper.At first reinforcing bar and location are laid, then, on this position, strained, and they are put into a mould bases, now again concrete pouring is arrived in this mould bases, carry out tamping then, up to hardening of concrete.According to the present invention, aforesaid operations can be finished by a tensioning apparatus and Fig. 5,6 apparatus shown.
Equipment of the present invention, have one above a series of pillars 7, extend send track 6 to, have several strainers 8 to move on the track sending to along direction 9.Now only one of them strainer 8 is illustrated.At this moment, can send to distinct methods as strainer, so, just strainer has only the supporting device can.
On feeding track 6, form a work station S, reinforcing bar 5 is delivered to this station, and can be conveyed into the corresponding shared position of each reinforcing bar in the strainer 8 to reinforcing bar.Work station S links to each other with reinforcing bar activity side direction, and reinforcing bar activity is provided with the reinforcing bar reel 10 that quantity and the quantity of forming each independent reinforcement one reinforcing bar 5 adapt.Only represent two reinforcing bar reels among Fig. 5.In addition, these reinforcing bar reels placed adjacent on direction outwardly.
Work station S links to each other with the feed apparatus 11 of tensioning reinforcing bar 5, and feed apparatus 11 also has quantity and the corresponding driven roller of reinforcing bar number to 12 and one tensioning apparatus 13.Tensioning apparatus 13 has two tensioning tubes 14, and is bearing on the strainer 8 with the form of bridge.Feed apparatus 11 and tensioning apparatus 13 are in conjunction with constituting an assembly on the balladeur train 15, and balladeur train 15 can be walked on roller 16 along the axis of symmetry direction of producing reinforcement, so that reinforcing bar when straining, makes reinforcing bar elongation tension.Tensioning apparatus 13 is provided with known hold down gag 17, by installing 17, can make that to extend between two pressing plates reinforcing bar 5 fixing and compress, and can promote separately one and unclamp in moving.
Strainer 8 has two side elongate member, 18, one front end lateral member, 19, one rear end lateral member 20, and a central lateral member 21 constitutes rectangle rack.Fig. 5,6 expression strainers 8 have 4 position I-IV, and wherein the production of prestressed concrete sleeper all can be carried out in each position.According to these positions, pressing plate type fastener vertically is placed on end cross-pieces 19 and 20.Those securing members adapt on these securing members and the tensioning apparatus 13.Be used to be offset the roller of crossing tensioning reinforcing bar, be placed on the central lateral member 21.
Equipment mode of operation of the present invention is as follows.
Two reinforcing bar guiding devices 24 like an assembly are located at the reinforcement axis direction one in front and one in back.This guiding device came as the location of single reinforcing bar in 24 minutes, by a vertical side and a lifting, can send into reinforcing bar guiding device 24 in the plane of strainer 8, or from then on it shifted out in plane.See Fig. 6, left side reinforcing bar guiding device 24 promotes and enters in strainer 8 planes, and the guiding device on the right then descends.This structure describes the description of face Fig. 7-10 as follows in detail.
On reinforcing bar guiding device 24 lowering means, single strainer 8 can advance and enter work station S along horizontal plane, and then, two reinforcing bar guiding devices 24 just promote and enter the I and the II position of strainer 8.Then, introduce reinforcing bar 5, reinforcing bar is fixed on the preceding lateral member 19, then,, reinforcing bar is strained, and it is fixed on the rear end lateral member 20 with pressing plate type fixator 17 by tensioning apparatus 13 with pressing plate type fixator 17.So, with reinforcing bar clipping apparatus 25 reinforcing bar 5 is cut off, simultaneously, the pressing plate fixator 17 on tensioning apparatus 13 is unclamped.In next operation, strainer 8 moves along feeding direction (haircut 9), moves on on the III and IV position of work station S, is in till reinforcing bar guiding device 24 tops.On these positions, again reinforcing bar 5 is sent in a similar manner, tension, fixing.
Use this mode, the strainer 8 of the tension reinforcing bar 5 after straining transmits along feeding direction (haircut 9) again.Then, last strainer 8 and framed the joining together that moves to tensioning steel wire top, can be in framed concrete pouring.Before concrete hardens fully, can carry out the demoulding and take off framed.Before concrete hardened fully, promptly before by unclamping pressing plate fixator 17 prestressing force being passed to sleeper, strainer 8 can not break away from the position of their relative sleepers earlier.If necessary, strainer 8 is cleared up, by sending track 6 to it is transmitted, in order to reusing.
Reinforcing bar conveyer 24 reaches among Fig. 8-10 and represents several sections and view respectively in the plan view of Fig. 7, reinforcing bar conveyer 24 separately, makes it to constitute reinforcing bar 5 location of a reinforcement, and it is the same that the prestressed concrete sleeper shown in Fig. 1-4 is provided with reinforcement.The arrangement of these reinforcements is used for introducing reinforcing bar conveyer 24 just as an example.Certainly, reinforcing bar conveyer 24 of the present invention can be used for similar other forms of reinforcement.
Reinforcing bar conveyer 24 has the partial fixing of some, and part is member movably, and each member forms two gathering sills 30 of a tensioning reinforcing bar 5, sees Fig. 7,8a, and 9a is in shown in the closure state.According to this embodiment of the reinforcement that is symmetrical in the sleeper center line, the conveyer of Fig. 7 have two internals 31 and have in each case two fixing be leg-of-mutton outer part 32 equally.In each case, two movable outer parts 33 and two movable internals 34 effects of cooperatively interacting are arranged, the part 31 and 32 that is fixed has smooth flat side surface, movable piece 33 and 34 each separately in the face of the part 31 that is fixed and 32 surfaces on cannelure is arranged, part 31 that each groove is fixed and 32 flat side mating reaction, the guiding groove 30(that forms sealing sees Fig. 8 a, 9a).
In this make position, reinforcing bar conveyer 24 is promoted, so that tensioning reinforcing bar 5 is inserted along guide channel 30, and they are arranged in the desired structure of this reinforcement.Fig. 8 a be among Fig. 7 along the end view of VIII-VIII line direction, expression is corresponding to sleeper end face reinforcement guiding situation shown in Figure 3.Fig. 9 is the sectional drawing that dissects along IX-IX of Fig. 7, and expression is corresponding to the structure of Fig. 4.
As seeing equally from Fig. 8 b and 9b are clear, after inserting reinforcing bar 5, two movable outer parts 33 are mobile outwardly along haircut 35 directions, and two internals 34 then move inward along haircut 36 directions.Like this, tension reinforcing bar 5 just can break away from guiding groove, thereby can make before elsewhere reinforcing bar 5 is tightened up, and can descend reinforcing bar 5 along haircut 37 directions.
Figure 10 presentation graphs 7 X-X is opened side cross sectional view, wherein is the arrangement mode of movable outer part inner surface groove.This mode and below guiding groove, be to be used to guide parallel reinforcing bar 30a and 30f; Those middle grooves are used to guide the reinforcing bar 30h of left side intersection, 30g, and the reinforcing bar 30c and the 30d on the right side.
Claims (8)
1, a kind of manufacturing prestretched prestressed concrete prefabricated component, particularly make the equipment of prestressed concrete sleeper, which is provided with at least one strainer that is used for taut wire and fastening devices, a strainer and a fastening devices that is used to strain this taut wire, it is characterized in that a horizontal supporting by tensioning frame (8), and the taut wire (5) that is used for twining from one or more wire reels (10) imports the supporting arrangement of this tensioning frame (8), this supporting arrangement links to each other with clipping apparatus (25) successively with the feeder that is used for taut wire (5) (11), and be placed on tensioning frame (8) outside, and near tensioning frame (8), a tensioning apparatus (13) that is used for taut wire (5) links to each other; Be provided with at least one steel wire guiding device (24) for the gathering sill (30) of tensioning steel wire (5) insertion, it is placed near the supporting arrangement, move by vertical direction, steel wire guiding device (24) can be introduced into the position in the plane of tensioning frame (8), or remove from this plan-position, on said position, can insert tensioning steel wire (5) wherein.
2, equipment as claimed in claim 1 is characterized in that supporting arrangement constitutes one at a work station S who sends on track (6) direction, and track (6) is used to make strainer (8) to move in horizontal plane.
3, equipment as claimed in claim 1 or 2 is characterized in that tensioning apparatus (13) is installed towards supporting arrangement from tensioning steel wire (5) feeding direction.
4, as equipment as described in one of claim 1-3, it is characterized in that tensioning apparatus (13) is installed in tensioning steel wire 95 movably) feeding direction on.
5,, it is characterized in that feeder (11) and tensioning apparatus (13) are united to form a device that is installed in movably on the feeding direction of tensioning steel wire (5) as equipment as described in one of claim 1-4.
6, as equipment as described in one of claim 1-5, it is characterized in that steel wire guiding device (24) is contained in the below of sending track (6) to as tensioning frame (8).
7, as equipment as described in one of claim 1-6, it is characterized in that steel wire guiding device (24) is a kind of frame construction with gathering sill (30), this structure is applicable to each predetermined three-dimensional position of the tensioning steel wire (5) of reinforcement, tensioning steel wire (5) inserts in this device with one end head, when sending to, gathering sill (30) can be in closure state, steel wire (5) is sent to, by opening the connection that extends longitudinally, can make groove (30) be in open mode, thereby allow framework from the reinforcement zone that three dimensions is laid, to remove.
8, as equipment as described in the claim 7, it is characterized in that gathering sill (30) is at member (33,34) forming one on the side is the groove of longitudinal extension basically, for open and close gathering sill (30), these members are with respect to the fixed component (31 with the plane that extends in parallel with them, 32), can vertically move with respect to reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93117626 CN1103686A (en) | 1993-08-10 | 1993-08-10 | An apparatus for producing prefabricated components from pretensioned prestressed concrete, in particular prestressed concrete sleepers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93117626 CN1103686A (en) | 1993-08-10 | 1993-08-10 | An apparatus for producing prefabricated components from pretensioned prestressed concrete, in particular prestressed concrete sleepers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1103686A true CN1103686A (en) | 1995-06-14 |
Family
ID=4992127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93117626 Pending CN1103686A (en) | 1993-08-10 | 1993-08-10 | An apparatus for producing prefabricated components from pretensioned prestressed concrete, in particular prestressed concrete sleepers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1103686A (en) |
-
1993
- 1993-08-10 CN CN 93117626 patent/CN1103686A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4952129A (en) | Plant to manufacture elongated elements of prestressed reinforced concrete | |
| CA1127380A (en) | Method of manufacturing prestressed construction elements in a long mould bed | |
| EP3486053B1 (en) | Method and assembly for producing hollow concrete elements | |
| US5439629A (en) | Method and apparatus for producing prefabricated components from pretensioned prestressed concrete | |
| CN1103686A (en) | An apparatus for producing prefabricated components from pretensioned prestressed concrete, in particular prestressed concrete sleepers | |
| US5976442A (en) | Apparatus and method to manufacture cast panels | |
| CN111015918B (en) | Automatic production line for concrete prefabricated parts | |
| CN112497477A (en) | Production equipment and production method for prestressed concrete steel bar truss precast slab | |
| CA1106579A (en) | Process and apparatus for continuously prestressing concrete products | |
| JP2010516923A (en) | Branch sleeper manufacturing method | |
| CN110561064B (en) | Reinforcing bar assembly shifts mechanism | |
| FI75302B (en) | APPARAT FOER KONTINUERLIGT GJUTNING AV EN I TVAO RIKTNINGAR FOERSPAEND AENDLOES BETONGPRODUKT. | |
| CN114042838B (en) | Manufacturing method and device of reinforcement cage for high-speed railway track plate | |
| KR0134566B1 (en) | Method and apparatus for producing prefabricated components pretensioned prestressed concrete | |
| DE10244016B4 (en) | Clamping method and clamping device and arrangement for the production of pre-stressed precast concrete parts of short length | |
| CN211362764U (en) | Concrete prefabricated part forming equipment | |
| EP1360397B1 (en) | Method and pallet for the production of a precise pre-cast concrete piece | |
| CN220363969U (en) | Ribbon straightening device | |
| CN215589521U (en) | Reinforcing steel bar mold-entering pre-tightening equipment | |
| CN214163463U (en) | Prestressed concrete steel bar truss prefabricated plate production facility | |
| CN215845446U (en) | Steel bar cage weaving machine | |
| CN217494612U (en) | Concrete member production is with mechanism of vibrating | |
| CN220888635U (en) | Prestress anchor cable bundling device | |
| CN218314192U (en) | Novel sleeper steel mould | |
| CN109501076B (en) | Combined type plate vulcanizing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |