CN204585526U - Pretensioned-prestressed tube pile stretching machine - Google Patents
Pretensioned-prestressed tube pile stretching machine Download PDFInfo
- Publication number
- CN204585526U CN204585526U CN201420840398.5U CN201420840398U CN204585526U CN 204585526 U CN204585526 U CN 204585526U CN 201420840398 U CN201420840398 U CN 201420840398U CN 204585526 U CN204585526 U CN 204585526U
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- lifting
- stretching machine
- pretensioned
- lifting platform
- tensioning equipment
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- Expired - Fee Related
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Abstract
The purpose of this utility model is, elevating screw is easily made to produce the deficiency of flexural deformation or damage for prior art pretensioned-prestressed tube pile stretching machine when stretch-draw top is subject to External Force Acting, the stretching machine that a kind of elevating screw not easily bends is provided, comprise tensioning equipment, lowering or hoisting gear, described lowering or hoisting gear is arranged on the supporting seat of described support, top and lifting actuator forms by supporting, described lifting actuator is by reducing motor, lifting screw, lifting nut and lifting platform composition, one end of described lifting nut connects the output shaft of described reducing motor, the other end is connected with lifting nut threaded engagement, described lifting nut is fixedly installed on described lifting platform, supporting seat is arranged on the top of support and is positioned at the top of tensioning equipment, described tensioning equipment is lifted on described lifting platform by described erecting by overhang, whole lowering or hoisting gear operates steadily, not fragile.
Description
Technical field
The utility model relates to a kind of stretching machine, particularly relates to pretensioned-prestressed tube pile stretching machine.
Background technology
Existing Pretensioned prestressing stretch-drawing machine comprises tensioning equipment, lowering or hoisting gear, movable dolly, moves left and right cart etc., tensioning equipment comprises jack, tensioning head and stretch-draw top, jack is connected with stretch-draw top, by tensioning equipment, stretch-draw is carried out to pile tube, be elevated tensioning equipment by lowering or hoisting gear.Lowering or hoisting gear many employings single-point support device of current stretching machine, bracing or strutting arrangement is arranged on the below of jack, and the top of elevating screw is connected with the lower end of jack, heads on jack be elevated by screw mandrel.Adopt this structure, when there being External Force Acting to arrive stretch-draw top, because elevating screw and jack are rigidly connected, so when External Force Acting is on stretch-draw top, screw mandrel is easily stressed bends, when being elevated tensioning equipment, jack swings, and makes lifting unstable.In order to overcome this deficiency, some stretching machine adopts gate framework to be elevated jack with the structure of manually drawing cucurbit to be combined, adopt the stretching machine of this structure, if be elevated jack with single cucurbit, then its steadiness is poor, the easy run-off the straight of jack, if adopt two cucurbit to be elevated jack, then two cucurbits are difficult to accomplish synchronization lifting, and jack is easily run-off the straight still.
Utility model content
The purpose of this utility model is, elevating screw is easily made to produce the deficiency of flexural deformation or damage for prior art pretensioned-prestressed tube pile stretching machine when stretch-draw top is subject to External Force Acting, there is provided a kind of when stretch-draw top is subject to External Force Acting, the stretching machine that elevating screw not easily bends.
Further object of the present utility model is, provide one not only elevating screw not easily occur bending and deformation, and the stretching machine of jack not easily run-off the straight during lifting.
A kind of pretensioned-prestressed tube pile stretching machine, comprise tensioning equipment, lowering or hoisting gear, described tensioning equipment is come directly towards by jack and stretch-draw and connects to form, described lowering or hoisting gear is by supporting, be arranged on supporting seat and the lifting actuator composition of described support, top, described lifting actuator is by reducing motor, lifting screw, lifting nut and lifting platform composition, one end of described lifting nut connects the output shaft of described reducing motor, the other end is connected with lifting nut threaded engagement, described lifting nut is fixedly installed on described lifting platform, supporting seat is arranged on the top of support and is positioned at the top of tensioning equipment, described tensioning equipment is lifted on described lifting platform by described erecting by overhang.
Described erecting by overhang is flexible hanging device.
Described erecting by overhang forms by regulating screw mandrel, adjusting nut, hanging and buffer spring, by regulate one end of screw mandrel to be connected by adjusting nut described in lifting platform, by regulating the other end of screw mandrel to connect buffer spring, by buffer spring by the jack described in hanging connection.
Described erecting by overhang is two, is separately positioned on the both sides of described support.
Described lifting platform is provided with at least two sliding sleeves, and one end of locating support is fixedly installed on described lifting platform, and the other end is through described sliding sleeve.Adopt the stretching machine of the utility model structure, because lowering or hoisting gear is arranged on the top of jack, jack is hung by erecting by overhang, by lowering or hoisting gear lifting hanging device thus the lifting completed tensioning equipment, so when stretch-draw top is subject to external impacts, indirect stroke power is applied on erecting by overhang, screw mandrel can not be subject to indirect stroke, thus thoroughly solves the technical problem that screw mandrel easily bends.
When erecting by overhang adopts flexible hanging device, absorbed and cushion impact forces by flexible hanging device, so it is not whole lowering or hoisting gear operates steadily, fragile.
Accompanying drawing explanation
Fig. 1 is the utility model stretching machine example structure schematic diagram;
Fig. 2 is the left view of Fig. 1.
Description of reference numerals
1-erecting by overhang 101-regulates screw mandrel 102-adjusting nut 103-to hang 104-buffer spring 2-lowering or hoisting gear 201-sliding sleeve 202-locating support 203-lifting screw 204-lifting nut 205-supporting seat 206-and supports 208-lifting platform 209-motor 210-reduction box
301-jack 302-tensioning head 303-stretch-draw comes directly towards
5-stretch-draw platform
Detailed description of the invention
Below in conjunction with specific embodiment, the utility model is further described:
As illustrated in fig. 1 and 2, stretching machine is made up of tensioning head 302, a thousand pieces of gold top 301 connecting tensioning head, jack erecting by overhang 1 and lowering or hoisting gear 2.The lowering or hoisting gear of the utility model embodiment comprises support 206, supporting seat 205, lifting platform 208 and lifting actuator, and lifting actuator is made up of motor 209, reduction box 210, lifting screw 203, lifting nut 24, lifting platform 208.Erecting by overhang 1 is made up of with hanging 103 adjustment screw mandrel 101 and adjusting nut 102.Supporting 206 is fixedly installed on stretch-draw platform 5, supporting seat 205 is arranged on the top of support 206 and is positioned at the top on a thousand pieces of gold top 301, motor and reduction box are all arranged on supporting seat 205, one end of lifting screw 203 connects the output shaft of reduction box 210, the other end connects lifting nut 204, lifting nut is fixedly connected on lifting platform 208, one end of screw mandrel 101 is regulated to be fixedly connected with lifting platform 208 by adjusting nut, the other end connects hanging 103, jack 301 is connected by hanging 103, erecting by overhang 1 is preferably two, lift the two ends of jack 301 respectively, keep the balance of tensioning equipment in lifting process.
In order to improve the stationarity of lifting, lifting platform 208 is fixedly installed sliding sleeve 201, one end of locating support 202 is fixedly connected with supporting seat, and the other end is arranged in sliding sleeve 201.
Come directly towards to prevent stretch-draw when being subject to external impacts and regulate screw mandrel distortion, between hanging 208 and adjustment screw mandrel, be provided with buffer spring 104, connect by one end of buffer spring the lower end regulating screw mandrel 101, the other end connects hanging 103.
Also can adopt rope type erecting by overhang, as steel wire rope, draw hawser etc.Buffer spring or steel wire rope etc. are set between hanging 208 and adjustment screw mandrel, the flexibility of erecting by overhang can be increased, well buffering and regulating action are played to the impulsive force of external force, prevent from regulating screw mandrel distortion, improve the impact resistance of whole device.
During work, hung by jack 301 in hanging 103, the hanging position of adjustment jack 301, makes whole tensioning equipment balance.Electric machine rotation, drives lifting screw to rotate, thus drives lifting platform 208 liters or fall.If desired by regulating screw mandrel and the height of adjusting nut to jack 301 to finely tune.
When adopting the lowering or hoisting gear of the utility model structure to be elevated jack 301, because lowering or hoisting gear is arranged on the top of jack 301, jack 301 is connected by erecting by overhang, so are indirect connections between lifting screw 203 with jack 301, when stretch-draw top 303 is subject to external impacts, cushioned by erecting by overhang 1 after external force passes to jack 301, energy seldom maybe can not be delivered on lifting screw, so the axis verticality of lifting screw 203 is good, make the stationarity of whole lowering or hoisting gear good.
Preferably buffer spring is set between adjustment screw mandrel and hanging.Because to arrange buffer spring between screw mandrel and hanging and arrange hoisting rope compare there is following benefit between regulating screw mandrel and hanging regulating: when stretch-draw come directly towards be subject to external impacts move downward drive jack 301 to move downward time, if what arrange between adjustment screw mandrel and hanging is hoisting rope, then whole device is without descending space, so be vulnerable to rigid impact, when being subject to impulsive force upwards, hoisting rope can lose the pulling force to jack 301 instantaneously, can at the Action of Gravity Field being subject to jack 301 instantaneously when the impulsive force be subject to disappears, so, steel wire rope is easily shaken, make hoisting rope because of fatigue fracture.When arranging buffer spring between regulating screw mandrel and hanging, no matter stretch-draw top is subject to upwards or downward impulsive force, and buffer spring pulls jack 301 all the time, the pulling force to jack 301 can not be lost, so whole erecting by overhang is steady, can not shake, more indefatigability.
Claims (5)
1. a pretensioned-prestressed tube pile stretching machine, comprise tensioning equipment, lowering or hoisting gear (2), described tensioning equipment comes directly towards (303) by jack (301) and stretch-draw and connects to form, it is characterized in that, described lowering or hoisting gear is by supporting (206), be arranged on supporting seat (205) and the lifting actuator composition of described support, top, described lifting actuator is by reducing motor, lifting screw (203), lifting nut (204) and lifting platform (208) composition, one end of described lifting nut (204) connects the output shaft of described reducing motor, the other end is connected with lifting nut (204) threaded engagement, described lifting nut is fixedly installed on described lifting platform (208), supporting seat (205) is arranged on the top of support (206) and is positioned at the top of tensioning equipment, described tensioning equipment is lifted on described lifting platform (208) by erecting by overhang.
2. pretensioned-prestressed tube pile stretching machine as claimed in claim 1, it is characterized in that, described erecting by overhang is flexible hanging device.
3. pretensioned-prestressed tube pile stretching machine as claimed in claim 2, it is characterized in that, described erecting by overhang forms by regulating screw mandrel (101), adjusting nut (102), hanging (103) and buffer spring (104), by regulate one end of screw mandrel to be connected by adjusting nut described in lifting platform, by regulating the other end of screw mandrel to connect buffer spring, by buffer spring by the jack (301) described in hanging (103) connection.
4. pretensioned-prestressed tube pile stretching machine as claimed in claim 3, it is characterized in that, described erecting by overhang is two, is separately positioned on the both sides of described support (206).
5. the pretensioned-prestressed tube pile stretching machine as described in one of claim 1 or 2 or 3 or 4, it is characterized in that, described lifting platform is provided with at least two sliding sleeves (201), one end of locating support (202) is fixedly installed on described lifting platform (208), and the other end is through described sliding sleeve (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420840398.5U CN204585526U (en) | 2014-12-26 | 2014-12-26 | Pretensioned-prestressed tube pile stretching machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420840398.5U CN204585526U (en) | 2014-12-26 | 2014-12-26 | Pretensioned-prestressed tube pile stretching machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204585526U true CN204585526U (en) | 2015-08-26 |
Family
ID=53921720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420840398.5U Expired - Fee Related CN204585526U (en) | 2014-12-26 | 2014-12-26 | Pretensioned-prestressed tube pile stretching machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204585526U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589489A (en) * | 2014-12-26 | 2015-05-06 | 湖南恒瑞管桩科技有限公司 | Tubular pile prestress tensioning machine |
| CN108656339A (en) * | 2018-06-11 | 2018-10-16 | 湖北工业大学 | A kind of pipe pile mould automatic Tensioning device |
| CN110228135A (en) * | 2019-07-05 | 2019-09-13 | 建华建材（中国）有限公司 | Pile for prestressed pipe automatic Tensioning equipment |
-
2014
- 2014-12-26 CN CN201420840398.5U patent/CN204585526U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589489A (en) * | 2014-12-26 | 2015-05-06 | 湖南恒瑞管桩科技有限公司 | Tubular pile prestress tensioning machine |
| CN104589489B (en) * | 2014-12-26 | 2018-05-01 | 湖南恒瑞管桩科技有限公司 | Tubular pile pre-stress stretching machine |
| CN108656339A (en) * | 2018-06-11 | 2018-10-16 | 湖北工业大学 | A kind of pipe pile mould automatic Tensioning device |
| CN110228135A (en) * | 2019-07-05 | 2019-09-13 | 建华建材（中国）有限公司 | Pile for prestressed pipe automatic Tensioning equipment |
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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 |
Granted publication date: 20150826 Termination date: 20151226 |
|
| EXPY | Termination of patent right or utility model |