CN108468276A - A kind of two-way jack-up system of prestressing force intelligent tensioning - Google Patents
A kind of two-way jack-up system of prestressing force intelligent tensioning Download PDFInfo
- Publication number
- CN108468276A CN108468276A CN201810454615.XA CN201810454615A CN108468276A CN 108468276 A CN108468276 A CN 108468276A CN 201810454615 A CN201810454615 A CN 201810454615A CN 108468276 A CN108468276 A CN 108468276A
- Authority
- CN
- China
- Prior art keywords
- tool
- pars contractilis
- intermediate plate
- anchor
- presstressed reinforcing
- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
- E04G21/121—Construction of stressing jacks
Abstract
The present invention discloses a kind of two-way jack-up system of prestressing force intelligent tensioning, it include the reversed pressure plate set gradually along tensioning direction, jack and tool anchor assemblies, jack is two-way jack, it includes cylinder body, pars contractilis there are two being set on the cylinder body, the telescopic direction of two pars contractilis is mutually parallel, it also extends through and is equipped with presstressed reinforcing steel via, two pars contractilis stretch out cylinder body along the both ends of presstressed reinforcing steel via respectively, two pars contractilis are respectively formed tensioning pars contractilis and top pressure pars contractilis, tool anchor assemblies are installed on tensioning pars contractilis, reversed pressure plate is installed on top pressure pars contractilis.Advantageous effect using the present invention is, more presstressed reinforcing steels are facilitated to be threaded through on tool anchor assemblies, the tensioning pars contractilis of tool anchor assemblies and jack coordinates, exercise tensioning function, the top pressure pars contractilis of jack exercises top pressure function, with reversed pressure plate mating reaction in work anchor assemblies, so that it is clamped presstressed reinforcing steel, rebound and the stress loss of presstressed reinforcing steel can be reduced.
Description
Technical field
The present invention relates to a kind of tools of building and field of bridge construction, and in particular to a kind of prestressing force intelligent tensioning is two-way
Jack-up system.
Background technology
Prestressing stretching technique extensive use in building and bridge construction can slow down concrete using pre-stress construction
The appearance of matrix cracking and extension process, prolong the service life.However, tensioning construction process is to material and construction technology
Requirement it is very high, be easier to the problem of loss of prestress occur.At the end of prestressing force loads, since the rebound of presstressed reinforcing steel can just make
It fastens between fixture and anchor ring, is lost so as to cause the prestressing force of load.It is damaged in work progress to solve prestressing force at present
The maximum stress of the problem of mistake, the load of the method for often requiring to use ultra stretching, i.e. tensioning are more than design value.However ultra stretching side
Method does not often know stress loss amount, it cannot be guaranteed that final stress meets design requirement, and easily presstressed reinforcing steel occurs and breaks or damage
Problem can not be solved perfectly in the situation of bad anchorage, ultra stretching method.On the other hand, in engineering, a prestressed concrete beam
Usually need more presstressed reinforcing steels of simultaneous tension, the assembly of presstressed reinforcing steel and anchor ring very inconvenient on body.Therefore, it still needs to be improved
The structure design of prestressed anchor and tensioning system provides conveniently for tensioning construction.
Invention content
In order to solve the above technical problems, the present invention provides a kind of two-way jack-up system of prestressing force intelligent tensioning.
Technical solution is as follows：
A kind of two-way jack-up system of prestressing force intelligent tensioning, it is critical that including being set gradually along tensioning direction
Reversed pressure plate, jack and tool anchor assemblies；
The jack is two-way jack comprising cylinder body is set on the cylinder body there are two pars contractilis, and two described flexible
The telescopic direction in portion is mutually parallel, and two pars contractilis are respectively formed tensioning pars contractilis and top pressure pars contractilis；
The tool anchor assemblies are installed on the tensioning pars contractilis, the reversed pressure is installed on the top pressure pars contractilis
Tight plate.
Using the above design, it the advantage is that the tensioning pars contractilis of tool anchor assemblies and jack coordinates, exercise tensioning work(
Can, the top pressure pars contractilis of jack exercises top pressure function, with reversed pressure plate mating reaction in work anchor assemblies, so that it is clamped pre-
Stress rib can reduce rebound and the stress loss of presstressed reinforcing steel.
Run through as optimal technical scheme, on the cylinder body of above-mentioned two-way jack and be equipped with presstressed reinforcing steel via, described in two
Pars contractilis stretches out the cylinder body along the both ends of the presstressed reinforcing steel via respectively, and the prestressing force is corresponded on two pars contractilis
Muscle via is respectively equipped with presstressed reinforcing steel holding holes, and the presstressed reinforcing steel holding holes being located on the tensioning pars contractilis form anchor ring
Mounting hole, the presstressed reinforcing steel holding holes being located on the top pressure pars contractilis form pressure plate mounting hole, the moveable anchor group
Part is installed in the anchor ring mounting hole, and the reversed pressure plate is installed in the pressure plate mounting hole.
Using the above design, it the advantage is that presstressed reinforcing steel holding holes are connected with presstressed reinforcing steel via, conveniently wear pre-
Stress rib, while the installation position of reversed pressure plate and moveable anchor being integrated into presstressed reinforcing steel holding holes, reasonable design.
As optimal technical scheme, above-mentioned cylinder body includes the outer sleeve and inner sleeve that coaxial line is arranged, the inner sleeve
Internal cavity forms the presstressed reinforcing steel via, and cylindric grease chamber is formed between the outer sleeve and inner sleeve, the grease chamber
Middle part is equipped with grease chamber shading ring, which is fixedly connected with the inner wall of the outer wall of the inner sleeve and outer sleeve respectively,
The grease chamber is divided into two plunger shafts by the grease chamber shading ring, and two pars contractilis are stretched into from the both ends of the grease chamber respectively
It in two plunger shafts, is sealed between the both ends of the grease chamber and corresponding pars contractilis, each the corresponding institute of the plunger shaft
It states and is respectively equipped with pump nozzle and oil return nozzle on outer sleeve.
Using the above design, it the advantage is that and coordinated by two independent plunger shafts and pars contractilis, form two independences
Work department, and it is compact-sized.
As optimal technical scheme, above-mentioned pars contractilis includes annular piston and retracting cylinder, and wherein annular piston circumferential direction is set to
In the plunger shaft, the inner end of the retracting cylinder is stretched into the plunger shaft along the centerline direction of the cylinder body and lives with ring-type
Plug connection, is equipped with sealing element between the retracting cylinder and the outer sleeve and inner sleeve, the pump nozzle and oil return nozzle distinguish position
In the both sides of the annular piston, the internal cavity of the retracting cylinder forms the presstressed reinforcing steel holding holes.
Using the above design, the jacking and reset that retracting cylinder is realized using easy structure design the advantage is that.
As optimal technical scheme, above-mentioned tool anchor assemblies include tool anchor ring and tool chuck；
The tool anchor ring includes working face and mounting surface, and running through on the tool anchor ring has tool anchor hole, the moveable anchor
Hole is in a circular table shape, and the larger one end open of the tool anchor hole internal diameter is in the working face, the smaller one end of the tool anchor hole internal diameter
It is opened on the mounting surface；
The tool chuck is round table-like to be adapted with the inner wall of the tool anchor hole, and the tool holder set is set to this
In tool anchor hole, the presstressed reinforcing steel keying aperture with hole heart line with tool anchor hole is equipped in the tool chuck；
The tool chuck is assembled by least two valve tool clamping piece circumferential directions, and the stub end of the tool chuck is connected with
Intermediate plate lifts component, and the small head end of the tool chuck is connected with intermediate plate return unit, the intermediate plate lifting component and tool anchor ring
Between be equipped with lifting operating parts.
Using the above design, it the advantage is that setting intermediate plate lifts component and lifting operating parts and can facilitate tool clamping piece
It is pulled to the major part extreme direction of tool anchor hole, to expand presstressed reinforcing steel keying aperture, conveniently wears presstressed reinforcing steel, using finishing
Afterwards, intermediate plate return unit can assistance tool intermediate plate be returned in work anchor hole.
As optimal technical scheme, its round platform generatrix direction of the inner wall upper edge of above-mentioned tool anchor hole is equipped with intermediate plate and is oriented to cunning
Slot, the intermediate plate guide chute are corresponded with the tool clamping piece, and the opening of the intermediate plate guide chute inside contracts, which, which is oriented to, slides
Sliding guide piece is respectively equipped in slot, which connects with the corresponding tool clamping piece；
The intermediate plate return unit is dynamic clamping head and quiet clamping head, and the tool clamping piece is connected separately with the dynamic clamping head and quiet clamping head, the bullet
Property return unit is arranged along its length in the intermediate plate guide chute, and one end of the dynamic clamping head and quiet clamping head is led with the intermediate plate
It is connected to the inner wall of sliding slot, the other end of the dynamic clamping head and quiet clamping head is connected with the tool clamping piece, the dynamic clamping head and quiet clamping head and institute
The connecting pin of intermediate plate guide chute inner wall is stated close to the mounting surface, the connecting pin of the dynamic clamping head and quiet clamping head and tool clamping piece is separate
The mounting surface.
Using the above design, it the advantage is that sliding guide piece slides in intermediate plate guide chute, each work can be guided
Have intermediate plate to slide along round platform generatrix direction, help to maintain the stability of tool clamping piece sliding, avoids between multiple intermediate plates
Interference and dislocation；After tool clamping piece slides into the position far from mounting surface, under the elastic force effect of dynamic clamping head and quiet clamping head, intermediate plate energy
Enough automatically revert to original position.
As optimal technical scheme, above-mentioned intermediate plate lifting component includes intermediate plate lifting plate and lifting connector, wherein intermediate plate
Lifting plate is located at the working face side of the tool anchor ring, and the intermediate plate lifting plate is equipped with corresponding with the tool anchor hole
Presstressed reinforcing steel is perforated, and the tool clamping piece is connected separately with the lifting connector, the both ends of the lifting connector respectively with
The tool clamping piece is connected with intermediate plate lifting plate, and the lifting connector is also disposed in the intermediate plate guide chute；
The lifting operating parts includes push-pull rod, which lifts plate, described push-pull rod one end perpendicular to the intermediate plate
It is threadedly coupled with the tool anchor ring, the other end activity of the push-pull rod is pierced by the intermediate plate lifting plate, in the push-pull rod
Portion is equipped with bulb, and the bulb is located between intermediate plate lifting plate and the tool anchor ring；
The working face is equipped with resigning breach corresponding with the bulb.
Using the above design, rotation push-pull rod is the advantage is that away from tool anchor ring, bulb pushes intermediate plate lifting
Plate original is from tool anchor ring, you can and all tool clamping piece synchronous slides are driven, presstressed reinforcing steel keying aperture is expanded, it is swollen after the completion of use
Big portion can be contained in resigning breach, not influence tool clamping piece homing.
As optimal technical scheme, installation card is equipped in the presstressed reinforcing steel holding holes of the retracting cylinder outer end
Ring, the center line of the installation snap ring are overlapped with the center line of the retracting cylinder, and the outer end face of the installation snap ring is equipped with against chamfering；
The fitting surface of the pressure plate ontology is against the outer end face of the installation snap ring of the top pressure pars contractilis, the pressure
The fitting surface edge of tight plate ontology is equipped with described against the matched annular assembly chamfer of chamfering；
The mounting surface of the tool anchor ring is against the outer end face of the installation snap ring of the tensioning pars contractilis, the tool
The mounting surface edge of anchor ring is equipped with described against the matched annular installation chamfering of chamfering.
Using the above design, it the advantage is that and facilitate between jack and reversed pressure plate, jack and tool anchor ring
Assembly.
It is secondary fixed that at least one is equipped with as optimal technical scheme, between the retracting cylinder and pressure plate ontology of above-mentioned top pressure pars contractilis
Position magnet pair also is provided at least one secondary phase magnet between the retracting cylinder of the tensioning pars contractilis and the tool anchor ring
It is right.
Using the above design, the advantage is that between auxiliary jack and reversed pressure plate, jack and tool anchor ring
Assembly.
As optimal technical scheme, above-mentioned reversed pressure plate includes pressure plate ontology, which includes setting backwards
The fitting surface and pressure surface set, for the fitting surface towards the tool anchor assemblies, the pressure surface is equipped with compression boss, described
It is equipped with presstressed reinforcing steel at compression boss center to perforate, the both ends of presstressed reinforcing steel perforation are opened on the end of the compression boss respectively
Face and the fitting surface；
The pressure plate ontology is equipped with anchor ring locating rod, and the anchor ring locating rod is vertically installed in the pressure plate ontology
Pressure surface on；
The two-way jack further includes the support tube being arranged with center line with the cylinder body, top pressure pars contractilis side
The outer edge of the outer sleeve connect with the inside edge of the support tube, the outer ledge of the support tube is equipped with outside turn over
Side.
Using the above design, the advantage is that facilitate reversed pressure plate and work anchor assemblies, jack and work anchor ring it
Between cooperation, anchor ring locating rod can guide the compression boss on reversed pressure plate stabilization approach and act on corresponding filing appliance
Set.
Advantageous effect：Advantageous effect using the present invention is that more presstressed reinforcing steels is facilitated to be threaded through on tool anchor assemblies, work
The tensioning pars contractilis for having anchor assemblies and jack coordinates, and exercises tensioning function, and the top pressure pars contractilis of jack exercises top pressure function,
With reversed pressure plate mating reaction in work anchor assemblies, so that it is clamped presstressed reinforcing steel, the rebound of presstressed reinforcing steel can be reduced and answered
Power is lost.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
The structural schematic diagram for the prestressing force pull system that Fig. 2 is applicable in for the present invention；
Fig. 3 is the assembling structure schematic diagram of reversed pressure plate and the anchor assemblies that work；
Fig. 4 is the structural schematic diagram of work anchor assemblies；
Fig. 5 is the structural schematic diagram of reversed pressure plate；
Fig. 6 is the structural schematic diagram of tool anchor assemblies；
Fig. 7 is the enlarged drawing in the portions m in Fig. 6.
Specific implementation mode
With reference to embodiment and attached drawing, the invention will be further described.
As shown in Figure 1, a kind of two-way jack-up system of prestressing force intelligent tensioning, include set gradually along tensioning direction it is anti-
To pressure plate b, jack c and tool anchor assemblies d.The jack c is two-way jack comprising cylinder body c3, cylinder body c3
On set there are two pars contractilis, the telescopic direction of two pars contractilis is mutually parallel, and two pars contractilis are respectively formed tensioning
Pars contractilis and top pressure pars contractilis；The tool anchor assemblies d is installed on the tensioning pars contractilis, is installed on the top pressure pars contractilis
There is the reversed pressure plate b.
In order to more clearly demonstrate the use state of the above-mentioned two-way jack-up system of prestressing force intelligent tensioning, with reference to its institute
Applicable prestressing force pull system is introduced：
As shown in Fig. 2, a kind of prestressing force intelligent tensioning system, including the anchor plate component e, the work anchor assemblies that set gradually
A, reversed pressure plate b, jack c and tool anchor assemblies d, the jack c are two-way jack comprising cylinder body c3, the cylinder
It is set on body c3 there are two pars contractilis, two pars contractilis stretch out the cylinder body along the both ends of the presstressed reinforcing steel via respectively
The telescopic direction of c3, two pars contractilis are mutually parallel, and two pars contractilis are respectively formed tensioning pars contractilis and top pressure is stretched
Contracting portion is equipped with the tool anchor assemblies d on the tensioning pars contractilis, the reversed compression is equipped on the top pressure pars contractilis
Plate b.
The anchor plate component e is fixed in concrete substrate, and the anchor plate component e includes anchor plate e1, the first spiral shell
It includes anchor plate ontology e11 and oviduct e12, the anchor plate to revolve stirrup e2 and the second tie hoop e4, the anchor plate e1
Ontology e11 includes the loading end and abutment face backwards to setting, and the anchor plate ontology e11 is provided centrally with presstressed reinforcing steel through-hole,
On the loading end of the anchor plate ontology e11 circle anchor ring bayonet e6, the work anchor are equipped with around the presstressed reinforcing steel through-hole
Ring a1 is fallen in the anchor ring bayonet e6.
The stub end of the oviduct e12 is connected on the abutment face of the anchor plate ontology e11, for ease of using, institute
The oviduct e12 and anchor plate ontology e11 is stated to be integrally formed.The outer concentric locking collars of the oviduct e12 are equipped with first spiral
It has been arranged circumferentially the sides flange e3, the flange e3 on the small head end outer wall of stirrup e2, the oviduct e12 and has been provided with described
Two tie hoop e4, second tie hoop e4 are located at the flange e3 far from the sides anchor plate ontology e11, and described first
Tie hoop e2's and the second tie hoop e4 is oppositely oriented, and the first tie hoop e2 is close to the anchor plate ontology e11
One end connect with the anchor plate ontology e11 spot welding, the second tie hoop e4 is convex with this close to one end of the flange e3
Edge e3 spot welding connects.Compared to traditional components, in this programme the design of anchor plate component e can enhance to mixed below anchor plate
Solidifying soil matrix body clasps power, improves the concrete strength of the region of stress concentration, to be provided effectively for the tensioning of presstressed reinforcing steel
Support.
As shown in Figures 3 and 4, the work anchor assemblies a is resisted against on the loading end of the anchor plate ontology e11, the work
It includes being equipped with work anchor hole a4, the work on work anchor ring a1 and work chuck a2, the work anchor ring a1 to make anchor assemblies a
Chuck a2 is matched with the work anchor hole a4；
The work anchor ring a1 includes backing plate face and pressure-bearing surface, and the backing plate face is described to hold against the anchor plate component e
Pressure surface is inserted into the work anchor hole a4, the top pressure towards the reversed pressure plate b, the work chuck a2 from the pressure-bearing surface
Pars contractilis pushes the chuck a2 that works described in the reversed pressure plate b top pressures；
Matched with work anchor assemblies a is the reversed pressure plate b.As shown in figure 5, the reversed pressure plate b includes
Pressure plate ontology b1, pressure plate ontology b1 include the fitting surface and pressure surface backwards to setting, when installation, the fitting surface direction
The tool anchor assemblies d, the pressure surface are equipped at the centers compression boss b2, the compression boss b2 and are worn equipped with presstressed reinforcing steel
The both ends of hole b3, presstressed reinforcing steel perforation b3 are opened on the end face of the compression boss b2 and the fitting surface respectively；
The pressure-bearing surface of the work anchor ring a1 is equipped with compression corresponding with the compression boss b2 and docks blind hole a3, should
Docking blind hole a3 bottom holes are compressed through there is the work anchor hole a4, work anchor hole a4 is truncated cone-shaped, the work anchor hole a4 internal diameters
Larger one end open is in compression docking blind hole a3, and the smaller one end open of the work anchor hole a4 internal diameters is in the backing plate
Face；
The outer wall of the work chuck a2 is the truncated cone-shaped being adapted with the work anchor hole a4 inner walls, the work chuck
The centers a2 are equipped with presstressed reinforcing steel anchor hole, and the work chuck a2 is assembled by least two valve work clip sheet circumferential directions, the work
Make the diameter of the stub end of chuck a2 and docks blind hole a3's more than the maximum inner diameter of the work anchor hole a4 and less than described compress
Internal diameter, the stub end of the work chuck a2, which stretches out after the work anchor hole a4 to fall, to be docked in compressions in blind hole a3, described
Work the big end surface of chuck a2 described in compression boss b2 top pressures.
For convenience of the cooperation between the reversed pressure plate b and work anchor ring a1, the reversed pressure plate b and work anchor ring
Between a1 be equipped with detent mechanism, the detent mechanism include be set to the pressure plate ontology b1 on anchor ring locating rod b4 and be set to institute
The location hole a5, the anchor ring locating rod b4 stated on work anchor ring a1 is vertically installed in the pressure surface of the pressure plate ontology b1
On, the location hole a5 is set on the pressure-bearing surface of the work anchor ring a1, and location hole a5 is blind hole, the anchor ring locating rod
B4 is stretched into the location hole a5 and is slidably matched with it.This design enables anchor ring locating rod that reversed pressure plate stabilization to be guided to support
Close and top pressure work clip sheet.
What the tensioning of the two-way jack and top pressure function were realized in：It is passed through on the cylinder body c3 of the two-way jack
It is equipped with presstressed reinforcing steel via, the presstressed reinforcing steel via is corresponded on two pars contractilis and is respectively equipped with presstressed reinforcing steel clamping
Hole is located at the presstressed reinforcing steel holding holes on the tensioning pars contractilis and forms anchor ring mounting hole c1, the tool anchor assemblies d peaces
Pressure plate mounting hole is formed loaded on the presstressed reinforcing steel holding holes in anchor ring mounting hole c1, being located on the top pressure pars contractilis
C2, the reversed pressure plate b are installed in pressure plate mounting hole c2.
The cylinder body c3 includes the outer sleeve c5 that coaxial line is arranged and inner sleeve c6, the inner chamber bodily form of the inner sleeve c6
At the presstressed reinforcing steel via, cylindric grease chamber is formed between the outer sleeve c5 and inner sleeve c6, is set in the middle part of the grease chamber
There is grease chamber shading ring c3a, grease chamber shading ring c3a is fixed with the inner wall of the outer wall of the inner sleeve c6 and outer sleeve c5 respectively to be connected
It connects, which is divided into two plunger shaft c4 by the grease chamber, and two pars contractilis are respectively from the grease chamber
Both ends are stretched into two plunger shaft c4, are sealed between the both ends of the grease chamber and corresponding pars contractilis, each piston
It is respectively equipped with pump nozzle and oil return nozzle on the corresponding outer sleeve c5 of chamber c4.
The pars contractilis includes annular piston c7 and retracting cylinder c8, and wherein annular piston c7 circumferential directions are set to the plunger shaft c4
Interior, the inner end of the retracting cylinder c8 is stretched into the plunger shaft c4 along the centerline direction of the cylinder body c3 and lives with the ring-type
C7 connections are filled in, sealing element, the pump nozzle and oil return are equipped between the retracting cylinder c8 and the outer sleeve c5 and inner sleeve c6
Mouth is located at the both sides of the annular piston c7, and the internal cavity of the retracting cylinder c8 forms the presstressed reinforcing steel holding holes.
As shown in fig. 6, the tool anchor assemblies d is used for the clamping of presstressed reinforcing steel, the tool anchor assemblies d includes moveable anchor
Ring d1 and tool chuck d2；The tool anchor ring d1 includes working face and mounting surface, and running through on the tool anchor ring d1 has tool
Anchor hole d3, tool anchor hole d3 is in a circular table shape, and the larger one end open of the tool anchor hole d3 internal diameters is in the working face, the tool
The smaller one end open of anchor hole d3 internal diameters is in the mounting surface；
The tool chuck d2 is round table-like to be adapted with the inner wall of the tool anchor hole d3, and the tool chuck d2 is set
It is placed in tool anchor hole d3, is equipped in the tool chuck d2 and is engaged with the presstressed reinforcing steel of hole heart line with tool anchor hole d3
Hole.
The d of tool anchor assemblies described in the present embodiment, which has been done, just wears formula design.Specifically, the tool chuck d2 is by least two
Valve tool clamping piece circumferential direction is assembled, and the stub end of the tool chuck d2 is connected with intermediate plate lifting component, the tool chuck
The small head end of d2 is connected with intermediate plate return unit d5, and lifting operating parts is equipped between the intermediate plate lifting component and tool anchor ring d1.
As shown in fig. 7, its round platform generatrix direction of the inner wall upper edge of the tool anchor hole d3 is equipped with intermediate plate guide chute d4, it should
Intermediate plate guide chute d4 is corresponded with the tool clamping piece, and the opening of intermediate plate guide chute d4 inside contracts, which, which is oriented to, slides
Sliding guide piece d41 is respectively equipped in slot d4, sliding guide piece d41 is connected with the corresponding tool clamping piece；
Specifically, the intermediate plate return unit d5 is dynamic clamping head and quiet clamping head, and it is multiple that the tool clamping piece is connected separately with the elasticity
Position part, the dynamic clamping head and quiet clamping head are arranged along its length in the intermediate plate guide chute d4, one end of the dynamic clamping head and quiet clamping head
It is connected with the inner wall of the intermediate plate guide chute d4, the other end of the dynamic clamping head and quiet clamping head is connected with the tool clamping piece, described
The connecting pin of dynamic clamping head and quiet clamping head and the intermediate plate guide chute d4 inner walls is close to the mounting surface, the dynamic clamping head and quiet clamping head and tool
The connecting pin of intermediate plate is far from the mounting surface.
The tool clamping piece is pulled to the major part extreme direction of the tool anchor hole d3, in the guiding of sliding guide piece d41
Under, each tool clamping piece is slided along round platform generatrix direction, is helped to maintain the stability of tool clamping piece sliding, is avoided multiple folders
Interference between piece and dislocation conveniently wear presstressed reinforcing steel to expand presstressed reinforcing steel keying aperture, after use, the folder
Piece return unit d5 can assistance tool intermediate plate be returned in the tool anchor hole d3.
Include intermediate plate lifting plate d6 and lifting connector for convenience of the tool clamping piece, the intermediate plate lifting component is pulled
D7, wherein intermediate plate lifting plate d6 are located at the working face side of the tool anchor ring d1, and the intermediate plate lifting plate d6 is equipped with and institute
The corresponding presstressed reinforcing steel through hole d8 of tool anchor hole d3 are stated, the tool clamping piece is connected separately with the lifting connector d7,
The both ends of the lifting connector d7 are connected with the tool clamping piece and intermediate plate lifting plate d6 respectively, the lifting connector
D7 is also disposed in the intermediate plate guide chute d4, avoids occupying the space in the tool anchor hole d3.
Specifically, the lifting connector d7 and intermediate plate return unit d5 can be spring.
For convenience of operation, the lifting operating parts includes push-pull rod d9, and push-pull rod d9 lifts plate perpendicular to the intermediate plate
D6, the one end the push-pull rod d9 are threadedly coupled with the tool anchor ring d1, and the other end activity of the push-pull rod d9 is pierced by described
Intermediate plate lifts is located at intermediate plate lifting plate d6 in the middle part of plate d6, the push-pull rod d9 equipped with bulb d10, the bulb d10
Between the tool anchor ring d1, the working face is equipped with resigning breach d11 corresponding with the bulb d10.
As shown in Fig. 2, for convenience of the top of the tensioning pars contractilis of tool anchor assemblies and jack, reversed pressure plate and jack
The assembly between pars contractilis and jack and work anchor ring, the present embodiment is pressed to have following design：
Installation snap ring c10, the installation snap ring are equipped in the presstressed reinforcing steel holding holes of the outer ends the retracting cylinder c8
The center line of c10 is overlapped with the center line of the retracting cylinder c8, and the outer end face of installation snap ring c10 is equipped with against chamfering；
The fitting surface of the pressure plate ontology b1 is against the installation snap ring on the retracting cylinder c8 of the top pressure pars contractilis
The outer end face of c10, the fitting surface edge of the pressure plate ontology b1, which is equipped with, to fall with described against the matched annular assembly of chamfering
Angle b5；
The mounting surface of the tool anchor ring d1 is against the installation snap ring c10 on the retracting cylinder c8 of the tensioning pars contractilis
Outer end face, the mounting surface edge of the tool anchor ring d1 is equipped with described against the matched annular installation chamfering of chamfering；
At least one secondary phase magnet pair is equipped between the retracting cylinder c8 and pressure plate ontology b1 of the top pressure pars contractilis, it is described
At least one secondary phase magnet pair also is provided between the retracting cylinder c8 of tensioning pars contractilis and the tool anchor ring d1；
For the phase magnet to including master positioning magnet c11 and secondary phase magnet, the master positioning magnet is respectively arranged on institute
On the chamfering inclined-plane against chamfering for stating installation snap ring c10；The pair phase magnet includes pressing plate pair phase magnet b6 and anchor ring
In secondary phase magnet d12, the pressing plate pair phase magnet b6 at the annular assembly chamfer b5 of the pressure plate ontology b1, institute
It states in anchor ring pair phase magnet d12 at the annular installation chamfering of the tool anchor ring d1；
The cylinder body c3 is provided with support tube c9 with center line, and the outer sleeve c5's of top pressure pars contractilis side is outer
Edge is connect with the inside edge of support tube c9, and the outer ledge of support tube c9 is equipped with outside flange, the work anchor
The pressure-bearing surface of ring a1 is equipped with is disposed around the compression docking with the matched annular groove a6 of the flange, annular groove a6
Outside blind hole a3；
The external part end of the compression boss b2 and the anchor ring locating rod b4 are equipped with outer chamfer.
Since a prestressed girder needs while using more presstressed reinforcing steels, above-mentioned work anchor assemblies in engineering practice
A and tool anchor assemblies d is porous anchor, and multiple compression boss b2 and pre- are correspondingly provided on the reversed pressure plate b
Stress rib perforation b3.
Prestressing force pull system is installed as shown in Figure 2, and the tensioning pars contractilis work of the two-way jack c is opened
Beginning tensioning, after reaching predetermined tensioning amount, the top pressure pars contractilis of the jack pushes described in the reversed pressure plate b top pressures
Work chuck a2, and the work anchor assemblies a is made to clamp the presstressed reinforcing steel, to avoid presstressed reinforcing steel from springing back, reduces prestressing force
Loss.
Finally, it should be noted that foregoing description is only the preferred embodiment of the present invention, the ordinary skill people of this field
Member under the inspiration of the present invention, without prejudice to the purpose of the present invention and the claims, can make table as multiple types
Show, such transformation is each fallen within protection scope of the present invention.
Claims (10)
1. a kind of two-way jack-up system of prestressing force intelligent tensioning, it is characterised in that：Include set gradually along tensioning direction it is anti-
To pressure plate (b), jack (c) and tool anchor assemblies (d)；
The jack (c) is two-way jack comprising cylinder body (c3) is set on the cylinder body (c3) there are two pars contractilis, two
The telescopic direction of the pars contractilis is mutually parallel, and two pars contractilis are respectively formed tensioning pars contractilis and top pressure pars contractilis；
The tool anchor assemblies (d) are installed on the tensioning pars contractilis, the reversed pressure is installed on the top pressure pars contractilis
Tight plate (b).
2. a kind of two-way jack-up system of prestressing force intelligent tensioning according to claim 1, it is characterised in that：Described two-way thousand
Through presstressed reinforcing steel via is equipped on the cylinder body (c3) on jin top, two pars contractilis are respectively along the two of the presstressed reinforcing steel via
The cylinder body (c3) is stretched out at end, and the presstressed reinforcing steel via is corresponded on two pars contractilis and is respectively equipped with presstressed reinforcing steel clamping
Hole, the presstressed reinforcing steel holding holes being located on the tensioning pars contractilis form anchor ring mounting hole (c1), are stretched positioned at the top pressure
The presstressed reinforcing steel holding holes in contracting portion form pressure plate mounting hole (c2), and the tool anchor assemblies (d) are installed on the anchor
In ring mounting hole (c1), the reversed pressure plate (b) is installed in the pressure plate mounting hole (c2).
3. a kind of two-way jack-up system of prestressing force intelligent tensioning according to claim 2, it is characterised in that：The cylinder body
(c3) include outer sleeve (c5) and inner sleeve (c6) that coaxial line is arranged, the internal cavity of the inner sleeve (c6) forms described pre-
Stress rib via, forms cylindric grease chamber between the outer sleeve (c5) and inner sleeve (c6), the middle part of the grease chamber is equipped with oil
Room shading ring (c3a), the grease chamber shading ring (c3a) are solid with the inner wall of the outer wall of the inner sleeve (c6) and outer sleeve (c5) respectively
The grease chamber is divided into two plunger shafts (c4) by fixed connection, the grease chamber shading ring (3a), and two pars contractilis are respectively from institute
The both ends for stating grease chamber are stretched into two plunger shafts (c4), are sealed between the both ends of the grease chamber and corresponding pars contractilis, often
It is respectively equipped with pump nozzle and oil return nozzle on the corresponding outer sleeve (c5) of a plunger shaft (c4).
4. a kind of two-way jack-up system of prestressing force intelligent tensioning according to claim 3, it is characterised in that：The pars contractilis
Including annular piston (c7) and retracting cylinder (c8), wherein annular piston (c7) is circumferential is set in the plunger shaft (c4), described to stretch
The inner end of contracting cylinder (c8) stretched into the plunger shaft (c4) along the centerline direction of the cylinder body (c3) and with annular piston (c7)
Connection, between the retracting cylinder (c8) and the outer sleeve (c5) and inner sleeve (c6) be equipped with sealing element, the pump nozzle with time
Oil nozzle is located at the both sides of the annular piston (c7), and the internal cavity of the retracting cylinder (c8) forms the presstressed reinforcing steel folder
Hold hole.
5. a kind of two-way jack-up system of prestressing force intelligent tensioning according to claim 4, it is characterised in that：The moveable anchor
Component (d) includes tool anchor ring (d1) and tool chuck (d2)；
The tool anchor ring (d1) includes working face and mounting surface, and running through on the tool anchor ring (d1) has tool anchor hole (d3),
The tool anchor hole (d3) is in a circular table shape, and the larger one end open of tool anchor hole (d3) internal diameter is in the working face, the moveable anchor
The smaller one end open of hole (d3) internal diameter is in the mounting surface；
The tool chuck (d2) is round table-like, the tool chuck (d2) being adapted with the inner wall of the tool anchor hole (d3)
It is set in the tool anchor hole (d3), the prestressing force with tool anchor hole (d3) with hole heart line is equipped in the tool chuck (d2)
Muscle keying aperture；
The tool chuck (d2) is assembled by least two valve tool clamping piece circumferential directions, and the stub end of the tool chuck (d2) connects
It is connected to intermediate plate lifting component, the small head end of the tool chuck (d2) is connected with intermediate plate return unit (d5), the intermediate plate lifting group
Lifting operating parts is equipped between part and tool anchor ring (d1).
6. a kind of two-way jack-up system of prestressing force intelligent tensioning according to claim 5, it is characterised in that：The moveable anchor
Its round platform generatrix direction of the inner wall upper edge in hole (d3) is equipped with intermediate plate guide chute (d4), the intermediate plate guide chute (d4) and the work
Have intermediate plate to correspond, the opening of the intermediate plate guide chute (d4) inside contracts, and sliding is respectively equipped in the intermediate plate guide chute (d4)
Guide part (d41), the sliding guide piece (d41) are connected with the corresponding tool clamping piece；
The intermediate plate return unit (d5) is dynamic clamping head and quiet clamping head, and the tool clamping piece is connected separately with the dynamic clamping head and quiet clamping head, the bullet
Property return unit be arranged along its length in the intermediate plate guide chute (d4), one end and the intermediate plate of the dynamic clamping head and quiet clamping head are led
It is connected to the inner wall of sliding slot (d4), the other end of the dynamic clamping head and quiet clamping head is connected with the tool clamping piece, the dynamic clamping head and quiet clamping head
Connecting pin with intermediate plate guide chute (d4) inner wall is close to the mounting surface, the company of the dynamic clamping head and quiet clamping head and tool clamping piece
End is connect far from the mounting surface.
7. a kind of two-way jack-up system of prestressing force intelligent tensioning according to claim 6, it is characterised in that：The intermediate plate carries
It includes intermediate plate lifting plate (d6) and lifting connector (d7) to draw component, and wherein intermediate plate lifting plate (d6) is located at the tool anchor ring
(d1) working face side, the intermediate plate lifting plate (d6) are passed through equipped with presstressed reinforcing steel corresponding with tool anchor hole (d3)
It perforates (d8), the tool clamping piece is connected separately with the lifting connector (d7), the both ends point of the lifting connector (d7)
It is not connected with the tool clamping piece and intermediate plate lifting plate (d6), the lifting connector (d7) is also disposed on the intermediate plate and leads
Into sliding slot (d4)；
The lifting operating parts includes push-pull rod (d9), and the push-pull rod (d9) is described to push away perpendicular to intermediate plate lifting plate (d6)
Pull rod one end (d9) is threadedly coupled with the tool anchor ring (d1), and the other end activity of the push-pull rod (d9) is pierced by the intermediate plate
Plate (d6) is lifted, bulb (d10) is equipped in the middle part of the push-pull rod (d9), the bulb (d10) is located at intermediate plate lifting
Between plate (d6) and the tool anchor ring (d1)；
The working face is equipped with resigning breach (d11) corresponding with the bulb (d10).
8. a kind of two-way jack-up system of prestressing force intelligent tensioning according to claim 5, it is characterised in that：It is stretched close to described
Be equipped with installation snap ring (c10) in the presstressed reinforcing steel holding holes of the outer end contracting cylinder (c8), the center line of the installation snap ring (c10) with
The center line of the retracting cylinder (c8) overlaps, and the outer end face of the installation snap ring (c10) is equipped with against chamfering；
The fitting surface of the pressure plate ontology (b1) against the installation snap ring (c10) of the top pressure pars contractilis outer end face,
The fitting surface edge of the pressure plate ontology (b1) is equipped with described against the matched annular assembly chamfer (b5) of chamfering；
The mounting surface of the tool anchor ring (d1) is against the outer end face of the installation snap ring (c10) of the tensioning pars contractilis, institute
The mounting surface edge for stating tool anchor ring (d1) is equipped with described against the matched annular installation chamfering of chamfering.
9. a kind of two-way jack-up system of prestressing force intelligent tensioning according to claim 8, it is characterised in that：The top pressure is stretched
At least one secondary phase magnet pair is equipped between the retracting cylinder (c8) and pressure plate ontology (b1) in contracting portion, the tensioning pars contractilis is stretched
At least one secondary phase magnet pair also is provided between contracting cylinder (c8) and the tool anchor ring (d1).
10. a kind of two-way jack-up system of prestressing force intelligent tensioning according to claim 9, it is characterised in that：It is described reversed
Pressure plate (b) includes pressure plate ontology (b1), which includes the fitting surface and pressure surface backwards to setting, described
Fitting surface is equipped with compression boss (b2), compression boss (b2) center towards the tool anchor assemblies (d), the pressure surface
Place is equipped with presstressed reinforcing steel and perforates (b3), and the both ends of presstressed reinforcing steel perforation (b3) are opened on the end of the compression boss (b2) respectively
Face and the fitting surface；
The pressure plate ontology (b1) is equipped with anchor ring locating rod (b4), and the anchor ring locating rod (b4) is vertically installed in the pressure
In the pressure surface of tight plate ontology (b1)；
The two-way jack (c) further includes the support tube (c9) being arranged with center line with the cylinder body (c3), and the top pressure is stretched
The outer edge of the outer sleeve (c5) of contracting portion side is connect with the inside edge of the support tube (c9), outside the support tube (c9)
Lateral edges are equipped with outside flange.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810103359X | 2018-02-01 | ||
| CN201810103359 | 2018-02-01 |
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| Publication Number | Publication Date |
|---|---|
| CN108468276A true CN108468276A (en) | 2018-08-31 |
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ID=63260279
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810454615.XA Pending CN108468276A (en) | 2018-02-01 | 2018-05-14 | A kind of two-way jack-up system of prestressing force intelligent tensioning |
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| Country | Link |
|---|---|
| CN (1) | CN108468276A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177350A (en) * | 2020-10-16 | 2021-01-05 | 盐城市双强管桩有限公司 | Tensioning equipment capable of quickly and safely releasing resilience force |
| CN114439002A (en) * | 2022-01-14 | 2022-05-06 | 杭州图强工程材料有限公司 | Tensioning tool for prestressed components |
| CN114482038A (en) * | 2022-01-14 | 2022-05-13 | 杭州图强工程材料有限公司 | Prestressed component tensioning tool with compact structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112177350A (en) * | 2020-10-16 | 2021-01-05 | 盐城市双强管桩有限公司 | Tensioning equipment capable of quickly and safely releasing resilience force |
| CN114439002A (en) * | 2022-01-14 | 2022-05-06 | 杭州图强工程材料有限公司 | Tensioning tool for prestressed components |
| CN114482038A (en) * | 2022-01-14 | 2022-05-13 | 杭州图强工程材料有限公司 | Prestressed component tensioning tool with compact structure |
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