CN203237975U - Chuck connection front clamping type jack - Google Patents
Chuck connection front clamping type jack Download PDFInfo
- Publication number
- CN203237975U CN203237975U CN 201220660156 CN201220660156U CN203237975U CN 203237975 U CN203237975 U CN 203237975U CN 201220660156 CN201220660156 CN 201220660156 CN 201220660156 U CN201220660156 U CN 201220660156U CN 203237975 U CN203237975 U CN 203237975U
- Authority
- CN
- China
- Prior art keywords
- chuck
- jack
- anchor slab
- piston
- fixture block
- 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 relates to a chuck connection front clamping type jack which is characterized in that a piston pull rod is connected with a piston, penetrates through a feed-through sleeve and extends outwards, a gap is formed between the piston pull rod and the feed-through sleeve, a cylinder body is connected with a support frame assembly, the ends of the support frame assembly abut against a limiting plate, and the ends of the piston pull rod are connected with a chuck which is provided with at least two inner clamping blocks; a tool anchor plate with a snap ring extends in the direction of an oil cylinder and is provided with at least two outer clamping blocks; when the outer clamping blocks are connected with the inner clamping blocks of the chuck, the chuck drives the tool anchor plate with the snap ring to move; when the outer clamping blocks are separated from the inner clamping blocks of the chuck, the chuck is separated from the tool anchor plate with the snap ring; a displacement sensor and a position detection sensor are installed on the jack, wherein the displacement sensor is used for measuring the elongation displacement of the jack piston, and the position detection sensor is used for detecting the connection position of the chuck and the tool anchor plate with the snap ring. The chuck connection front clamping type jack has the advantages of being easy and convenient to use as a conventional feed-through jack when the tool anchor plate and a tool clamping piece are assembled by the conventional feed-through jack, and capable of achieving the purpose that an existing inner clamping jack saves steel strands, so that construction efficiency is improved, and raw material cost is saved.
Description
Technical field
Of the present utility model relate to a kind of chuck for the pre-stress construction field and connect before clip type jack.
Background technology
In tensioning construction, if with conventional centre-hole jack stretch-draw, the prestress wire in each duct lengthens 600-800mm in the effective length external demand, and again excision causes waste of raw materials after the stretch-draw.And use at present more fastening type jack, because its moveable anchor is installed in the punching cover the inside of jack, the steel strand beam ratio is difficult during construction.
The utility model content
It is easy like that the purpose of this utility model just provides a kind of conventional centre-hole jack holding tool anchor slab and tool clamping piece both can accomplished, can reach again present general fastening type jack and save the purpose of steel strand, thereby the chuck that has improved operating efficiency and the cost that saves material connects front clip type jack.
Solution of the present utility model is such: the utility model includes cylinder body, piston, setscrew nut, large plug, punching cover, closing plate, hold-down ring, pitch brace is connected with piston and passes protruding from the punching cover, gapped between the two, cylinder body is connected with the bracing frame assembly, positioning plate is withstood in the termination of bracing frame assembly, the termination of pitch brace is connected with chuck, and described chuck has at least two interior fixture blocks; The instrument anchor slab is connected with the instrument anchor slab of the band clasp that stretches out to the oil cylinder direction, the instrument anchor slab of described band clasp has at least two outer fixture blocks, when described outer fixture block is positioned at fixture block with chuck and joins, chuck drives the instrument anchor slab motion of band clasp, when described outer fixture block was positioned at fixture block with chuck and is separated, chuck separated with the instrument anchor slab of band clasp.
Further: the interior fixture block on the described chuck is distributed in same circumference; Outer fixture block on the instrument anchor slab of described band clasp is to be distributed in same circumference.
Further: displacement pickup and position-detection sensor are installed on the jack, and displacement pickup is used for measuring jack piston elongation displacement; Position-detection sensor is installed on the described chuck, and for detection of the coupled position situation of the instrument anchor slab of described chuck and band clasp, displacement signal and position signal are sent to the pumping plant controller by data line or wireless telecommunications.
The utility model has the advantages that both can to accomplish conventional centre-hole jack holding tool anchor slab and tool clamping piece easy like that, can reach again at present general fastening type jack and save the purpose of steel strand, thereby improve operating efficiency and the cost that saves material.
Description of drawings
Accompanying drawing is embodiment of the present utility model.
Accompanying drawing 1 is the structural representation master cutaway view of front clip type jack.
Accompanying drawing 2 is the profile scheme drawing of front clip type jack.
Accompanying drawing 3 is the structural representation right elevation of front clip type jack.
Accompanying drawing 4 is the moveable anchor plate structure scheme drawing front view of band clasp.
Accompanying drawing 5 is the moveable anchor plate structure scheme drawing birds-eye view of band clasp.
Accompanying drawing 6 is the left cutaway view of moveable anchor plate structure scheme drawing of band clasp.
Accompanying drawing 7 is the moveable anchor plate structure schematic bottom view of band clasp.
The specific embodiment
The utility model includes cylinder body 8, piston 3, setscrew nut 4, large plug 5, punching cover 7, closing plate 10, hold-down ring 11, pitch brace 1 is connected with piston 3 and passes protruding from punching cover 7, gapped between the two, cylinder body 8 is connected with the bracing frame assembly, positioning plate is withstood in the termination of bracing frame assembly, the termination of pitch brace 1 is connected with chuck 14, and described chuck 14 has at least two interior fixture blocks; The instrument anchor slab 19 of the band clasp that described instrument anchor slab 20 oriented oil cylinder directions are stretched out, the instrument anchor slab 19 of described band clasp has at least two outer fixture blocks, when described outer fixture block is positioned at fixture block with chuck 14 and joins, chuck 14 drives instrument anchor slab 19 motions of band clasp, when described outer fixture block was positioned at fixture block with chuck 14 and is separated, chuck 14 separated with the instrument anchor slab 19 of band clasp.Interior fixture block on the described chuck 14 is distributed in same circumference; Outer fixture block on the instrument anchor slab 19 of described band clasp is to be distributed in same circumference, positioning plate 22.
Displacement pickup and position-detection sensor are installed on the jack, and displacement pickup 23 is used for measuring jack piston elongation displacement; Position-detection sensor is installed on the described chuck 14, and for detection of the coupled position situation of described chuck 14 with the instrument anchor slab 19 of band clasp, displacement signal and position signal are sent to the pumping plant controller by data line or wireless telecommunications.
In the illustrated embodiment such as accompanying drawing 1 and accompanying drawing 2, cylinder body 8 is provided with left oil inleting port 6 and right oil inlet 9, and it and piston 3, setscrew nut 4, large plug 5, punching cover 7, closing plate 10, hold-down ring 11 etc. consist of the hydraulic part of jacks.Pitch brace 1 connects with piston 3 by nut 2; Pitch brace 1 passes from punching cover 7, and both leave the gap and are not in contact with one another.The first annulus 12, the second annulus 18 form bracing frame with cylinder 13; One end of bracing frame connects with oil cylinder 8 by bolt and is fixed as one, and the other end is used for propping up positioning plate.The instrument anchor slab 19 of instrument anchor slab 20 and band clasp connects by screw thread, and both do as a whole and need not separately in the time of at ordinary times construction, and shown in accompanying drawing 6 and accompanying drawing 7, its right-hand member connects positioning plate 22, and positioning plate 22 withstands anchor slab 21.The instrument anchor slab 19 of band clasp is circular, and its excircle is provided with three sector notch, shown in accompanying drawing 4 and accompanying drawing 5; One end of chuck 14 is circular, be provided with three interior fixture blocks on the same circumference, be provided with three sector notch at circumference, three sector notch can make the outer fixture block of the instrument anchor slab 19 of this band clasp pass through with axial direction, and the other end is provided with screw thread in order to connect with pitch brace 1.17 is the bolt positioning plate.The instrument anchor slab 19 of band clasp is in sector notch pierces into chuck 14, insert swivelling chute 15 interior rotating chucks 14 with iron staff again, when the outer fixture block of the instrument anchor slab 19 of band clasp just in time forwards corresponding staggering to the interior fixture block of chuck 14 and during the position of axially blocking, the position-detection sensor that is installed on the chuck 14 passes the signal to the pumping plant controller, simultaneously locating dowel pin 16 is fixed both, and so far system can allow to carry out stretch-draw.As shown in Figure 3.
At this moment, inject high pressure oil toward oil inlet 9, oil pressure pushing piston, pitch brace follow piston to move, and the pulling moveable anchor carries out stretch-draw.
After stretch-draw finishes, inject high pressure oil toward oil inlet 6, make piston reset.Just jack and moveable anchor can be separated by swivelling chute 15 rotary chucks 14.
Claims (3)
1. clip type jack before a chuck connects, include cylinder body (8), piston (3), setscrew nut (4), large plug (5), punching cover (7), closing plate (10), hold-down ring (11), it is characterized in that pitch brace (1) is connected with piston (3) and passes protruding from punching cover (7), gapped between the two, cylinder body (8) is connected with the bracing frame assembly, positioning plate is withstood in the termination of bracing frame assembly, the termination of pitch brace (1) is connected with chuck (14), and described chuck (14) has at least two interior fixture blocks; Instrument anchor slab (20) is connected with the instrument anchor slab (19) of the band clasp that stretches out to the oil cylinder direction, the instrument anchor slab (19) of described band clasp has at least two outer fixture blocks, when described outer fixture block is positioned at fixture block with chuck (14) and joins, chuck (14) drives instrument anchor slab (19) motion of band clasp, when described outer fixture block was positioned at fixture block with chuck (14) and is separated, chuck (14) separated with the instrument anchor slab (19) of band clasp.
2. clip type jack before chuck according to claim 1 connects is characterized in that the interior fixture block on the described chuck (14) is distributed in same circumference; Outer fixture block on the instrument anchor slab (19) of described band clasp is to be distributed in same circumference.
3. clip type jack before chuck according to claim 1 connects is characterized in that being equipped with on the jack displacement pickup and position-detection sensor, and displacement pickup is used for measuring jack piston elongation displacement; Position-detection sensor is installed on the described chuck (14), and for detection of the coupled position situation of described chuck (14) with the instrument anchor slab (19) of band clasp, displacement signal and position signal are sent to the pumping plant controller by data line or wireless telecommunications.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220660156 CN203237975U (en) | 2012-12-05 | 2012-12-05 | Chuck connection front clamping type jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220660156 CN203237975U (en) | 2012-12-05 | 2012-12-05 | Chuck connection front clamping type jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203237975U true CN203237975U (en) | 2013-10-16 |
Family
ID=49315295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220660156 Expired - Fee Related CN203237975U (en) | 2012-12-05 | 2012-12-05 | Chuck connection front clamping type jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203237975U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011008A (en) * | 2012-12-05 | 2013-04-03 | 柳州市桥厦工程管材有限公司 | Chuck connection front clamping type jack |
-
2012
- 2012-12-05 CN CN 201220660156 patent/CN203237975U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011008A (en) * | 2012-12-05 | 2013-04-03 | 柳州市桥厦工程管材有限公司 | Chuck connection front clamping type jack |
| CN103011008B (en) * | 2012-12-05 | 2015-07-29 | 柳州市桥厦工程管材有限公司 | Clip type jack before chuck connects |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20161205 |