CN86201711U - Self-aligning shifting bearings for horizontal jack - Google Patents
Self-aligning shifting bearings for horizontal jack Download PDFInfo
- Publication number
- CN86201711U CN86201711U CN 86201711 CN86201711U CN86201711U CN 86201711 U CN86201711 U CN 86201711U CN 86201711 CN86201711 CN 86201711 CN 86201711 U CN86201711 U CN 86201711U CN 86201711 U CN86201711 U CN 86201711U
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Abstract
The utility model relates to a self-aligning shifting bearing for bridge construction by multipoint push, which is composed of a self-aligning front bearing and a self-aligning rear bearing. A horizontal jack is supported on the shifting bearing and is matched with the shifting bearing. The jack can rotate in both horizontal and vertical directions in the front bearing and can swing up and down and right and left in the rear bearing. As a result, when the horizontal jack is in the construction operation, the centre line of an oil cylinder of the jack can be in conformity with the centre line of a pull rod. The utility model overcomes the additional radial force caused by the nonconformity of the centre line of the oil cylinder of the jack and the centre line of the pull rod, protects the oil cylinder and the seal components from early damage and protects the pull rod from breakage accidents.
Description
The utility model relate to a kind of level jack transpose automatically freely movable bearing, belong to bridge construction machinery.
The bridge multi-point pushing method in place of constructing is one of advanced both at home and abroad method for bridge construction in the present age.It is power with the jack, uses novel gliding material and equipment, and bridge slippage on the pier that has built up is in place, but the manufacturing of beam and pier construction parallel operations need not pin hand support under the bridge, but the reduction of erection time extensively adopts at present both at home and abroad.
Level jack is one of key equipment of bridge incremental launching construction, it was supported by fixed bearing in the past, owing to be fixed in drawing the anchor device and being fixed on level jack on the pier on the beam, there is error in the two installation site, bridge its position in the pushing tow process will inevitably produce skew simultaneously, cause dragging bridge pull bar center line in place and inconsistent like this, thereby bring adverse consequences as the level jack center line of power-equipment.Fig. 1 is a bridge incremental launching construction operation schematic diagram, (101) be nose girder, it is for improving the force-bearing situation in the bridge incremental launching process, convenient construction and being provided with, remove after having constructed, (102) be the case beam, it is the beam that construction is built, (103) be level jack, (104) be actuator, (105) it is fixed in the member that drags on the beam in order to draw the anchor device, and (106) be bridge pier, owing to the level jack in the pushing tow system, actuator (comprising pull bar), draw the anchor device to be the member that is rigidly connected, when bridge incremental launching, inconsistent because of pull bar and level jack center line, jack can be subjected to the effect of additional radial pressure, causes the jack seal to quicken to damage and the premature wear of oil cylinder, to cause the accident that fractures of oil cylinder damage and pull bar when serious, jeopardize construction safety.
The purpose of this utility model is exactly at the problems referred to above, a kind of freely movable bearing that can transpose automatically is provided, be used for supporting level jack, make the jack cylinder center line in the bridge incremental launching operation, can follow the skew of pull bar center line and regulate voluntarily, both are consistent by center line, prevent the additional radial pressure that the skew because of both center lines produces, avoid the early stage damage of oil cylinder and cylinder seal spare and the accident that fractures of pull bar, improve service life of equipment, guarantee construction safety.
Below will briefly explain accompanying drawing of the present utility model.
Fig. 1 is a bridge multiple spot top application work industry schematic diagram;
Fig. 2 is the front view of level jack apparatus system;
Fig. 3 is the vertical view of level jack apparatus system;
Fig. 4 is a freely movable bearing view before the positioning automatically;
Fig. 5 is a freely movable bearing vertical view before the positioning automatically;
Fig. 6 is a freely movable bearing front view after the positioning automatically.
Level jack push away apparatus system as shown in Figures 2 and 3, whole system by automatic positioning before freely movable bearing (1), level jack oil cylinder (2), automatically freely movable bearing (3) after transposing, automatic locking device (4), pull bar (5), binding clasp (6) is formed automatically.Below in conjunction with accompanying drawing to the automatic positioning that the utility model proposes before freely movable bearing be described in detail:
Referring to Fig. 4 and Fig. 5, freely movable bearing before transposing automatically, structure is twisted ear (7), bracket (11), perpendicular bearing pin (13), plastic plate (12), cotter axle (15), base (14), half garden retainer (17) etc. by oil cylinder and is constituted.Oil cylinder strand ear (7) (claiming the oil cylinder drive end bearing bracket again) is a steel-casting, the part that it connects with oil cylinder is a flange, side by oil cylinder is processed with step through-hole, current for laying oil cylinder leading section and piston rod (9), respectively there is a floor on the opposite side of flange, the both sides that are symmetrical in through hole, the every block of plate in the top of floor is processed with lateral pin axle bed hole, match with the seat hole on carriage (11) riser in this hole, the common bearing pin (15) of installing, jack cylinder can rotate around cotter axle (15) in vertical plane.Bracket (11) is a steel-casting, and the bottom is truncated cone-shaped, and the middle part is a square plate, there is small boss at dull and stereotyped middle part, and the boss center is processed with perpendicular pin shaft hole, and there are two cotter axle base plates in the boss outside, its position is along the balanced configuration of oil cylinder center line, and lateral pin axle bed hole is arranged at base plate top.Floor seat hole cooperates processing on this hole and the oil cylinder strand ear, with assurance cotter axle installation site precision.The material of plastic plate (12) is a polyfluortetraethylene plate, shape pad river, the similar garden of shape, and it plays the effect of a plane bearing, avoids the directly contact of bracket (11) and base (14), reduces wear.Base (14) is a steel-casting, top is cone boss, the bottom is a square plate, 10 screws distribute around dull and stereotyped, two deep floors are arranged between boss and base plate, arrange each limit a slice along the oil cylinder centerline direction, the cone boss center is processed with perpendicular bearing pin step through-hole, and large through-hole is used for perpendicular bearing pin shoulder is installed.Perpendicular bearing pin (13) is No. 45 carbon steels, is a d-axis that shoulder is arranged, and the axle center is drilled with " L " shape oilhole; The topmost of oilhole has a step, is equipped with oil pot with force, and its purpose is convenient to oil filling and dustproof.Cotter axle (15) has two, geomery is identical, make by No. 45 carbon steels, one end is a shoulder, is processed with the wrench position plane on the shoulder, and other end car has screw thread, the centre is a d-axis, oil cylinder is twisted ear (7) to cotter axle and bracket (11) fuses, and connects the back and tighten up with nut, prevents that connector from getting loose.
Referring to Fig. 6, automatic positioning back freely movable bearing, structure by automatic positioning after freely movable bearing body (23), horizontal supporting axle (18), adjust spring (19), horizontal supporting axle nut (20), horizontal supporting hubcap (28), perpendicular bearing pin (21), perpendicular bearing pin upper end cover (22), perpendicular bearing pin is adjusted spring (24), spring supporting plate (25), perpendicular bearing pin bottom end cover (26) is adjusted screw compositions such as (27).Automatically positioning back freely movable bearing is the three-point floating formula, supporting seat is a steel-casting, it is made of top semicircle supporting fork and cylinder bottom two supporting legs that hollow cylinder and cylinder fuse, between supporting fork and supporting leg, link to each other with deep floor, each supporting leg has a screw, supply fixed mounting base usefulness at the scene, the top of semicircle fork is processed with the lateral pin axis hole.The through hole of hollow cylinder is for installing perpendicular bearing pin, spring and spring supporting plate, the two ends of Cylinder are carried out machine and are drilled with screw, so as to install, bottom end cover.Cotter axle (18) is the step axle, and an end that contacts with oil cylinder is the garden cambered surface, and the other end passes end cap, and the end car by end cap has screw thread to be used for the size of regulating spring pressure.The structure of perpendicular bearing pin (21) is identical with transverse axis.The undressed screw thread of tail end of just perpendicular bearing pin, the size of spring (24) pressure is regulated by the screw (27) on the end casing (26).
Course of action of the present utility model is summarized as follows, in Fig. 4 and Fig. 5, when the center line of level jack oil cylinder and pull bar center line are inconsistent, oil cylinder can rotate around cotter axle (15) in vertical plane together with oil cylinder strand ear, also can in horizontal plane, rotate simultaneously around perpendicular bearing pin (13), thereby adjust the position of oil cylinder and pull bar center line, make both mutually harmonious.
In Fig. 6, an end of level jack is supported by automatic positioning rear support, when jack is installed on building-site, initially adjust oil cylinder center line and pull bar center line the position, make it to be consistent.Control method turns horizontal supporting axle (18) exactly, because of the bolster tail end has screw driver (bottle opener) mouthful, as long as turn with screw driver, and its skew in can the water transfer plane, it is fastening to adjust usefulness nut (20).The identical adjustment screw (27) that turns of control method in vertical plane moves up and down vertical pivot (21), then can change the height of oil cylinder position.So far oil cylinder in rear support not only can about but also can swing up and down.When the pushing tow operation, if the oil cylinder center line is inconsistent with the pull bar center line, automatically bearing can make oil cylinder rotate in level and vertical plane before the positioning, and the rear support of transposing automatically can make oil cylinder swing in level and vertical plane, can keep consistent with the pull bar position of center line automatically, avoid because of the inconsistent additional radial pressure that produces of both position of center line, can prevent the accident that fractures of the early stage heel and toe wear and the pull bar of oil cylinder and seal, can prolong service life of equipment, guarantee construction safety, field trial proves, meets pre-provisioning request.
Claims (5)
1, the flat jack of a kind of bridge multi-point pushing construction water is the preceding bearing of positioning automatically, it is characterized in that it twists ear [7] by oil cylinder, bracket [11], perpendicular bearing pin [13], plastic plate [12], transverse axis pin [15], base [14], semicircle retainer [17] constitutes, the transverse axis pin-and-hole on the oil cylinder strand ear [7] and the axis hole of bracket are by cotter axle [15] polyphone, cotter axle one end is a shoulder, the other end pins with nut, truncated cone-shaped bracket [11] is connected in series with vertical pivot pin [15] with base [14] and plastic plate [12], make bracket become movable with base and connect, and pin with semicircle retainer [17].
2, bearing before the very heavy automatic positioning of level according to claim 1 is characterized in that oil cylinder can rotate around cotter axle (15), can rotate around vertical pivot pin (13) at the horizontal plane inner cylinder in vertical plane.
3, by bearing before the described automatic positioning of claim 1, it is characterized in that an anti-attrition plastic plate (12) is arranged between bracket (11) and the base (14), plastic plate is made by polytetrafluoroethylene (PTFE).
4, the flat jack of a kind of bridge multi-point pushing construction water rear support of transposing automatically is characterized in that it by automatic positioning rear support body (23), horizontal supporting axle (18), adjust spring (19), horizontal axis nut (20), horizontal axis end cap (28), perpendicular bearing pin (21), perpendicular bearing pin upper end cover (22), perpendicular bearing pin bottom end cover (26), spring (24), spring supporting plate (25), adjust screw (27) and constitute, an end bearing of oil cylinder is on the three-point floating formula is transposed rear support automatically.
5, the level jack according to claim 4 rear support of transposing automatically is characterized in that oil cylinder can swing in horizontal plane in bearing, can swing up and down in vertical plane simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86201711 CN86201711U (en) | 1986-03-22 | 1986-03-22 | Self-aligning shifting bearings for horizontal jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86201711 CN86201711U (en) | 1986-03-22 | 1986-03-22 | Self-aligning shifting bearings for horizontal jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86201711U true CN86201711U (en) | 1987-06-10 |
Family
ID=4805412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86201711 Ceased CN86201711U (en) | 1986-03-22 | 1986-03-22 | Self-aligning shifting bearings for horizontal jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86201711U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100519944C (en) * | 2003-12-10 | 2009-07-29 | 上海市机械施工有限公司 | Stress self-balancing and deviation rectification equipment for column system in use for push constructing bridge floor structure |
| CN102041782A (en) * | 2010-12-10 | 2011-05-04 | 合肥中铁钢结构有限公司 | Multi-point pushing system of large-span steel truss girders and pushing process thereof |
| CN103046474A (en) * | 2013-01-29 | 2013-04-17 | 中铁大桥局股份有限公司 | Method and apparatus for adjusting three-dimensional displacement of large-tonnage support seat |
| CN107191203A (en) * | 2017-04-05 | 2017-09-22 | 中铁二十二局哈尔滨铁路建设集团有限责任公司 | It is a kind of it is adjustable control tunnel surrounding convergent deformation false stull device and apply method |
| CN107244388A (en) * | 2017-05-17 | 2017-10-13 | 中铁十九局集团有限公司 | Floating towboat and bridge erection system, method for installing girder steel |
| CN110387833A (en) * | 2019-07-29 | 2019-10-29 | 北京九州动脉隧道技术有限公司 | A kind of beam body erection method |
-
1986
- 1986-03-22 CN CN 86201711 patent/CN86201711U/en not_active Ceased
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100519944C (en) * | 2003-12-10 | 2009-07-29 | 上海市机械施工有限公司 | Stress self-balancing and deviation rectification equipment for column system in use for push constructing bridge floor structure |
| CN102041782A (en) * | 2010-12-10 | 2011-05-04 | 合肥中铁钢结构有限公司 | Multi-point pushing system of large-span steel truss girders and pushing process thereof |
| CN102041782B (en) * | 2010-12-10 | 2013-01-23 | 合肥中铁钢结构有限公司 | Multi-point pushing system of large-span steel truss girders and pushing process thereof |
| CN103046474A (en) * | 2013-01-29 | 2013-04-17 | 中铁大桥局股份有限公司 | Method and apparatus for adjusting three-dimensional displacement of large-tonnage support seat |
| CN103046474B (en) * | 2013-01-29 | 2014-12-10 | 中铁大桥局股份有限公司 | Method and apparatus for adjusting three-dimensional displacement of large-tonnage support seat |
| CN107191203A (en) * | 2017-04-05 | 2017-09-22 | 中铁二十二局哈尔滨铁路建设集团有限责任公司 | It is a kind of it is adjustable control tunnel surrounding convergent deformation false stull device and apply method |
| CN107191203B (en) * | 2017-04-05 | 2023-11-28 | 中铁二十二局集团第一工程有限公司 | Temporary transverse strut device capable of adjustably controlling tunnel surrounding rock convergence deformation and construction method |
| CN107244388A (en) * | 2017-05-17 | 2017-10-13 | 中铁十九局集团有限公司 | Floating towboat and bridge erection system, method for installing girder steel |
| CN110387833A (en) * | 2019-07-29 | 2019-10-29 | 北京九州动脉隧道技术有限公司 | A kind of beam body erection method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CE01 | Termination of patent right | ||
| CE01 | Termination of patent right |