CN211171658U - Movable type hogging moment jack supporting device - Google Patents

Movable type hogging moment jack supporting device Download PDF

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Publication number
CN211171658U
CN211171658U CN201921991475.6U CN201921991475U CN211171658U CN 211171658 U CN211171658 U CN 211171658U CN 201921991475 U CN201921991475 U CN 201921991475U CN 211171658 U CN211171658 U CN 211171658U
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China
Prior art keywords
jack
support rod
hogging moment
bracket
frame body
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CN201921991475.6U
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Chinese (zh)
Inventor
张周昌
梁富
谢炜峰
方绍君
马东峰
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China Construction Eighth Engineering Division Co Ltd
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China Construction Eighth Engineering Division Co Ltd
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Abstract

The utility model provides a portable hogging moment jack strutting arrangement, include: the walking wheel type trolley comprises a frame body, wherein the bottom of the frame body is provided with walking wheels, the top of the frame body comprises two parallel rail grooves and two idler wheels arranged in the two rail grooves in a sliding manner, and a cross beam is connected between the two idler wheels; the jack bracket is rotatably connected with a jack fixing disc; and a height adjusting member connected between the cross beam and the jack bracket. The utility model discloses portable hogging moment jack strutting arrangement passes through crossbeam, chain block and link and can conveniently realize three-dimensional the regulation to the jack bracket, rotates the angle of fine setting jack through the rotation wheel, not only improves construction operation flexibility, but also has improved jack alignment accuracy.

Description

Movable type hogging moment jack supporting device
Technical Field
The utility model relates to a construction technical field relates to a portable hogging moment jack strutting arrangement particularly.
Background
In the modern bridge construction technology, the T-beam structure has many continuous advantages and is a common structural form of bridge design. The stress state of the beam body is continuously and greatly improved by the structure, the whole stress state of the beam body is more uniform and reasonable under the load action, the overall performance is good, the safety is high, the performance of the structure optimization and full utilization of materials can be realized, the design height of the beam body is reduced, and therefore materials are saved. The structure can also reduce the number of expansion joints of the bridge floor continuously, so that the bridge floor becomes continuous and flat, and the comfort of the travelling crane on the bridge is increased. The T-beam structure continuous construction process relates to the conversion of a structural system, and the T-beam hogging moment tension is an important process for the conversion of the structural system. The method comprises the steps of prefabricating a beam body in a precast yard, stretching and grouting with positive bending moment after the beam body reaches the age, transferring the beam body to a position corresponding to a hole position of a bridge for installation, supporting the beam body by a temporary support at the moment and still being in a simple support stress state, constructing a pier top cast-in-place continuous joint between two bridge bodies, stretching and grouting with negative bending moment after concrete reaches the design strength, removing the temporary support, converting a bridge system, supporting the beam body by a permanent support, and changing the whole bridge structure from the simple support stress state to the structural continuous stress state.
The jack used in the T-beam hogging moment tensioning construction which is an important process is heavy, the traditional construction method is that the T-beam hogging moment tensioning construction is carried and transferred manually, the jack installed in the hogging moment tensioning groove is lifted manually, manpower, material resources and time are consumed, the operation is inflexible, the construction difficulty is high, and the operation risk is high.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, the utility model provides a portable hogging moment jack strutting arrangement solves current manual work and lifts the transfer jack, and the operation is inflexible, the construction degree of difficulty is big, consume the defect that manpower, material resources and jack position control deviation are big.
In order to achieve the purpose, the utility model adopts the technical proposal that: the utility model provides a portable hogging moment jack strutting arrangement is provided, includes:
the walking wheel type trolley comprises a frame body, wherein the bottom of the frame body is provided with walking wheels, the top of the frame body comprises two parallel rail grooves and two idler wheels arranged in the two rail grooves in a sliding manner, and a cross beam is connected between the two idler wheels;
the jack bracket is rotatably connected with a jack fixing disc;
a height adjustment member connected between the cross beam and the jack bracket.
In the embodiment of the utility model, the support body is the cuboid frame.
In the embodiment of the utility model provides an in, height adjusting part is chain block, two couples of chain block respectively with the crossbeam jack bracket is connected.
In the embodiment of the utility model, be equipped with the confession on the crossbeam the link that a couple hooking of chain block.
In an embodiment of the utility model, the jack bracket include with first branch, with jack fixed disk rotatable coupling in the second branch of first branch below and connect in first branch tip third branch between the second branch tip, first branch with contained angle between the second branch is the obtuse angle, the second branch with third branch is perpendicular.
The embodiment of the utility model provides an in, be fixed with on the second branch and rotate the wheel, rotate the middle part trompil of wheel and be connected with the pivot, the tip of pivot stretches out rotate the wheel with the bottom of jack fixed disk is fixed.
The utility model discloses owing to adopted above technical scheme, make it have following beneficial effect:
(1) the utility model discloses a portable hogging moment jack strutting arrangement drives the jack bracket through the support body walking and removes, solves the jack and shifts the difficulty, waste time, hard problem, simple structure, convenient for material collection simultaneously, easily preparation are suitable for general popularization.
(2) The jack of the utility model freely lifts through the chain block to drive the jack bracket to move up and down, thereby adjusting the height of the jack; the movable cross beam is arranged, so that the jack can be conveniently adjusted in the extending direction of the prefabricated T-shaped beam, namely the front position and the rear position of the jack can be conveniently adjusted; by arranging the hanging ring with the diameter larger than that of the cross beam, the friction resistance of the hanging picture moving on the cross beam is smaller, and the jack can conveniently drive the bracket, the chain block and the hanging ring to move so as to adjust the left and right positions of the jack; the utility model discloses portable hogging moment jack strutting arrangement passes through crossbeam, chain block and link and can conveniently realize three-dimensional the regulation to the jack bracket, rotates the angle of fine setting jack through the rotation wheel, not only improves construction operation flexibility, but also has improved jack alignment accuracy.
Drawings
Fig. 1 is a schematic front view of the mobile hogging moment jack supporting device of the present invention.
Fig. 2 is a schematic top view of the mobile hogging moment jack support device of the present invention.
Fig. 3 is a schematic side view of the mobile hogging moment jack support device of the present invention.
Fig. 4 is a schematic front view of the jack bracket of the present invention.
Fig. 5 is a cross-sectional view of the cross-section line I-I of fig. 4 according to the present invention.
Fig. 6 is a schematic top view of the jack bracket of the present invention.
Fig. 7 is a schematic side view of the jack bracket of the present invention.
Fig. 8 is a schematic top view of the lowering state of the jack of the present invention.
Fig. 9 is a schematic front view of the lower state of the jack of the present invention.
Fig. 10 is a schematic front view of the jack in a tension state according to the present invention.
The correspondence of reference numerals to components is as follows:
a frame body 1; a traveling wheel 11; a rail groove 12; a roller 13; a cross member 14; a hanging ring 15; a jack bracket 2; a jack 20; a jack fixing disk 21; a first strut 22; a hook 221; a second strut 23; a third strut 24; a turntable 25; a rotating shaft 26; a height adjusting member 3; a T-beam 4.
Detailed Description
To facilitate understanding of the present invention, the following description is made with reference to the accompanying drawings and examples.
Referring to fig. 1 to 3, the present invention provides a mobile hogging moment jack supporting device, including: the walking wheel frame comprises a frame body 1, wherein the bottom of the frame body 1 is provided with walking wheels 11, the top of the frame body 1 comprises two parallel rail grooves 12 and two idler wheels 13 arranged in the two rail grooves 12 in a sliding manner, and a cross beam 14 is connected between the two idler wheels 13; the lifting jack fixing device further comprises a lifting jack bracket 2 used for fixing a lifting jack 20, wherein a lifting jack fixing disc 21 is rotatably connected to the lifting jack bracket 2; and a height adjuster 3 connected between the cross member 14 and the jack bracket 2.
In the embodiment of the present invention, the frame body 1 is a rectangular frame, the frame body 1 is formed by processing channel steel, and the opening of the channel steel at the top of the frame body 1 faces upwards to form the rail groove 12; the cross beam 14 is made of round steel, the cross beam 14 is moved, the cross beam 14 travels in the rail groove 12 through the roller 13, and the front position and the rear position of the jack 20 can be adjusted.
The embodiment of the utility model provides an in, jack bracket 2 adopts the processing of 5# channel-section steel to form, and the steel reinforcing of channel-section internal weld phi 20 round steel ensures good atress, the utility model discloses 1 materials of support body are convenient, simple structure, preparation convenience.
In the embodiment of the present invention, the height adjusting member 3 is a chain block, and two hooks of the chain block are respectively connected to the cross beam 14 and the jack bracket 2; the height adjusting part 3 can also be a pulley (not shown) wound on the pulley through a rope (not shown), one end of the rope is connected with the jack bracket 2, the other end of the rope is used for pulling, in order to achieve the effect of saving labor, the pulling end of the rope can also be connected with a winch (not shown), the lifting of the rope is controlled through the forward rotation and the reverse rotation of the winch, and the heights of the jack bracket 2 and the jack 20 are further controlled; the height adjusting member 3 is not limited to the structure mentioned in the specification of the present application, and other structures that can realize height control are applicable to the present invention.
In the embodiment of the present invention, a hanging ring 15 for hooking a hook of the chain block is disposed on the cross beam 14, the hanging ring 15 is sleeved outside the cross beam 14, the jack bracket 2 is moved, the jack bracket 2 drives the chain block and the hanging ring 15 to move on the cross beam 14 to adjust the left and right positions of the chain block, and further adjust the position of the jack 20, and precisely align with the tension hole; the jack bracket 2 is detachably connected with the chain block, so that the mounting and dismounting can be conveniently carried out; preferably, the diameter of the hanging ring 15 is larger than that of the cross beam 14, so that when the hanging ring 15 moves along the cross beam 14, the friction resistance can be reduced, time and labor are saved, and the movement of the jack 20 is smoother.
In the embodiment of the present invention, as shown in fig. 4 to 7, the jack bracket 2 includes a first supporting rod 22 connected to the bottom of the height adjusting member 3, a second supporting rod 23 rotatably connected to the lower portion of the first supporting rod 22 and a third supporting rod 24 connected between the end portions of the first supporting rod 22 and the second supporting rod 23, and the first supporting rod 22, the second supporting rod 24 and the third supporting rod 23 are assembled to form a U-shaped frame structure; preferably, the included angle between the first supporting rod 22 and the second supporting rod 23 is an obtuse angle, the second supporting rod 23 is transversely arranged, and the second supporting rod 23 is perpendicular to the third supporting rod 24. Further, a hook 221 is arranged at one end of the first support rod 22 connected with the chain block, and the chain block is connected with the first support rod 22 through two hooks in a hooking manner; as shown in fig. 5 and 6, the second support rod 23 is composed of two parallel rod members, the third support rod 24 is fixed between the two parallel rod members, and the third support rods 24 are two parallel rod members, so as to improve the structural stability of the jack bracket 2.
In the embodiment of the present invention, in order to align the hogging moment hole position during the use of the jack, the jack 20 is rotatably positioned on the jack tray 21 of the jack bracket 2, so that the jack 20 can rotate freely; specifically, as shown in fig. 4 and 7, a rotating wheel 25 is fixed on the second supporting rod 23, a hole is formed in the middle of the rotating wheel 25, a rotating shaft 26 is connected to the rotating wheel 25, and an end of the rotating shaft 26 extends out of the rotating wheel 25 and is fixed to the bottom of the jack fixing disk 21; preferably, the jack fixing plate 21 includes a reinforcing portion fixed to the rotating shaft 26 and a tray portion fixed to the reinforcing portion, and a surface area of the tray portion is larger than a surface area of the reinforcing portion, so as to increase a contact area between the tray portion and the jack 20 and improve support stability of the jack 20.
The structure of the mobile hogging moment jack supporting device of the present invention is described above specifically, and its usage is described below.
Building a construction platform by adopting square timber and wood boards, and clamping the construction platform at the horseshoe parts of the two prefabricated T-shaped beams;
erecting a movable type hogging moment jack supporting device provided with a jack 20 on the beam surface of two prefabricated T-shaped beams 4, adjusting the position of the movable type hogging moment jack supporting device to be close to the position above a tensioning hole, locking a pulley after the position is reached, and preventing a frame body 1 from moving;
as shown in fig. 8 and 9, adjusting the angle of the jack bracket 2 to make the jack bracket 2 parallel to the T-shaped beam 4, and pulling the chain block to lower the jack bracket 2;
after the jack 20 is lowered to the same height as the tensioning hole, the opening of the jack bracket 2 faces the T-shaped beam 4 by rotating 90 degrees, the jack 20 is moved to drive the chain block and the hanging ring 15 connected with the chain block to move along the cross beam 14, the left position and the right position of the jack 20 are adjusted, and the rotating jack 20 can be adjusted by slight deviation to align the jack.
The utility model discloses jack bracket 2 adopts the frame structure of type U-shaped, can make things convenient for jack bracket 2 to transfer in the narrow and small space between two prefabricated T type roof beams 4, jack bracket 2's first branch 22 simultaneously, second branch 23 can block in the top and the below of the portion of encorbelmenting of T type roof beam 4, compare with the vertical bracket of transferring not having the U-shaped structure, can avoid the bracket to collide with the portion of encorbelmenting, lead to the bracket can not put the position more nearly with the stretch-draw hole down, jack 20's position control does not put in place, influence the stretch-draw effect.
The present invention has been described in detail with reference to the drawings and the embodiments, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.

Claims (6)

1. The utility model provides a portable hogging moment jack strutting arrangement which characterized in that includes:
the walking wheel type trolley comprises a frame body, wherein the bottom of the frame body is provided with walking wheels, the top of the frame body comprises two parallel rail grooves and two idler wheels arranged in the two rail grooves in a sliding manner, and a cross beam is connected between the two idler wheels;
the jack bracket is rotatably connected with a jack fixing disc;
a height adjustment member connected between the cross beam and the jack bracket.
2. The mobile hogging moment jack support device of claim 1, wherein the frame body is a rectangular parallelepiped frame.
3. The mobile hogging moment jack support device of claim 1, wherein the height adjusting member is a chain block, and two hooks of the chain block are connected with the cross beam and the jack bracket respectively.
4. The mobile hogging moment jack support device of claim 3, wherein the cross beam is provided with a hanging ring for hooking a hook of the chain block.
5. The mobile hogging moment jack support device of claim 1, wherein the jack bracket comprises a first support rod connected with the bottom of the height adjusting piece, a second support rod rotatably connected with the jack fixing disc below the first support rod, and a third support rod connected between the end part of the first support rod and the end part of the second support rod, the included angle between the first support rod and the second support rod is an obtuse angle, the second support rod is transversely arranged, and the second support rod is perpendicular to the third support rod.
6. The mobile hogging moment jack support device of claim 5, wherein the second support bar is fixed with a rotating wheel, the middle part of the rotating wheel is provided with a hole and is connected with a rotating shaft, and the end part of the rotating shaft extends out of the rotating wheel and is fixed with the bottom of the jack fixing disc.
CN201921991475.6U 2019-11-18 2019-11-18 Movable type hogging moment jack supporting device Active CN211171658U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921991475.6U CN211171658U (en) 2019-11-18 2019-11-18 Movable type hogging moment jack supporting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921991475.6U CN211171658U (en) 2019-11-18 2019-11-18 Movable type hogging moment jack supporting device

Publications (1)

Publication Number Publication Date
CN211171658U true CN211171658U (en) 2020-08-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921991475.6U Active CN211171658U (en) 2019-11-18 2019-11-18 Movable type hogging moment jack supporting device

Country Status (1)

Country Link
CN (1) CN211171658U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113089493A (en) * 2021-04-19 2021-07-09 中建八局南方建设有限公司 High pier T beam hogging moment tensioning device and tensioning method
CN114908679A (en) * 2022-06-30 2022-08-16 中建路桥集团有限公司 T-beam hogging moment tensioning equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113089493A (en) * 2021-04-19 2021-07-09 中建八局南方建设有限公司 High pier T beam hogging moment tensioning device and tensioning method
CN114908679A (en) * 2022-06-30 2022-08-16 中建路桥集团有限公司 T-beam hogging moment tensioning equipment

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