CN219622296U - Auxiliary device for negative bending moment stretching - Google Patents
Auxiliary device for negative bending moment stretching Download PDFInfo
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- CN219622296U CN219622296U CN202321243659.0U CN202321243659U CN219622296U CN 219622296 U CN219622296 U CN 219622296U CN 202321243659 U CN202321243659 U CN 202321243659U CN 219622296 U CN219622296 U CN 219622296U
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- tensioning
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Abstract
The utility model relates to an auxiliary device for hogging moment stretching, which belongs to the technical field of building construction and comprises a support frame, a pushing handle, a top plate, supporting feet, a vertical shaft body, a transverse frame body, a side frame body, a winding mechanism, a shaft body, a steel rope, U-shaped steel, a stretching jack, a connecting piece, a rotary bolt and a counterweight groove.
Description
Technical Field
The utility model belongs to the technical field of building construction, and particularly relates to an auxiliary device for negative bending moment tensioning.
Background
In the building engineering, a beam plate is arranged on a capping beam filler stone, and tensioning is performed after the casting of the continuous section is completed and the strength reaches the design requirement, so that the beam plate belongs to high-altitude dangerous operation. The hogging moment stretching opening is positioned at the lower end of the wing plate of the beam plate, and the space between two connected beams is narrow, so that the stretching operation platform is narrow; the jack is provided with devices such as an oil pipe, a data line, a sensor and the like, and the devices are easy to damage, so that tensioning data can be wrong to influence tensioning prestress; in addition, the jack is heavy, so that a plurality of people are required to squeeze the jack on a narrow operation platform for installation, and the people fall off due to easy crowding in the installation process. If the oil pipe is burst in the tensioning process, the pressure is high, operators are easy to be accidentally injured, and therefore potential safety hazards are high. Several persons cooperate in a narrow space, so that the installation position of a jack is often inaccurate, the tensioning quality is directly affected, and the conditions of prestress loss or steel strand stretch-breaking and the like occur. Meanwhile, the tensioning process is slow, so that labor is wasted, the progress is influenced, and the production cost is increased; the known conventional negative moment tensioning has the above-mentioned various inconveniences.
Disclosure of Invention
In order to overcome the problems in the background art, the utility model aims to provide a safe, reliable, convenient and quick auxiliary device for hogging moment stretching. Therefore, the problems of labor waste, machinery waste, safety, large hidden quality hazards, high production cost and the like of the traditional tensioning are solved.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
the auxiliary device for hogging moment stretch-draw includes support frame, supporting legs, pushing hands, roof, support, vertical axis body, cross frame body, side frame body, winding mechanism, axis body, steel cable, U shaped steel, stretch-draw jack, connecting piece, swivel bolt, counter weight groove, balancing weight, the support frame is square frame, and the supporting legs sets up in the support frame bottom, and the pushing hands is connected with the support frame, and the roof is connected with the supporting legs, and the vertical axis body is connected with the roof, and the cross frame body is connected with the vertical axis body, and the side frame body is connected with the vertical axis body, and winding mechanism is connected with the cross frame body, and the axis body sets up at side frame body tip, and the steel cable is connected with the axis body, and the stretch-draw jack is located U shaped steel below, and the connecting piece sets up at the stretch-draw jack, and swivel bolt sets up between connecting piece and U shaped steel, the counter weight groove sets up on the support frame, and the balancing weight sets up inside the counter weight groove.
The supporting legs consist of supporting legs and travelling wheels, and the four corners of the bottom of the supporting frame are provided with the supporting legs.
The transverse frame body, the side frame body, the winding mechanism, the shaft body and the steel rope form a winch, and the winding mechanism is internally provided with a winding shaft.
The vertical shaft body is a rotating shaft.
The U-shaped steel bottom and the connecting piece top are provided with connecting holes, and after the rotary bolts are inserted from the connecting holes, nuts are arranged on the bottoms of the rotary bolts.
The balancing weight tank is internally provided with a balancing weight in a detachable mode, and the weight of the balancing weight is greater than or equal to 100kg.
The utility model has the beneficial effects that: the auxiliary device for hogging moment tensioning is of a cart structure as a whole, supporting feet are arranged at the bottom of the supporting frame, the device is convenient to transport, the cart can be directly moved to transport equipment to a construction position, a top plate, a support and a vertical shaft body at the top of the supporting frame form a frame body, the vertical shaft body is a rotating shaft, a transverse frame body, a side frame body, a winding mechanism, a shaft body and a steel rope form a winch, the winding mechanism is internally provided with a winding shaft, the steel rope is connected with U-shaped steel, the U-shaped steel is connected with a tensioning jack, the tensioning jack is placed to the construction position by using the winch to carry out construction operation, the overhead operation is avoided, the tensioning jack is put down by using the winch to avoid manual installation, potential safety hazards are reduced to a great extent.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a continuous section hogging moment tensioning schematic;
FIG. 3 is a schematic diagram 1 of the present utility model;
FIG. 4 is a schematic diagram of the present utility model in use;
fig. 5 is a schematic structural view of the rotary bolt.
In the figure, 1-supporting frames, 2-supporting feet, 3-pushing hands, 4-top plates, 5-supporting frames, 6-vertical shaft bodies, 7-transverse frames, 8-side frame bodies, 9-winding mechanisms, 10-shaft bodies, 11-steel ropes, 12-U-shaped steel, 13-tensioning jacks, 14-connecting pieces, 15-rotating bolts, 16-counterweight grooves, 17-counterweight blocks, 18-supporting feet, 19-travelling wheels, 20-beam top surfaces, 21-auxiliary device bodies, 22-first toothed plates, 23-second toothed plates, 24-steel strands, 25-first beam plates and 26-second beam plates.
Detailed Description
In order to make the above objects, technical schemes and beneficial effects clearer and more clear, the present utility model is specifically described below with reference to the accompanying drawings.
As shown in figures 1-2, the auxiliary device for hogging moment tensioning comprises a support frame 1, a support leg 2, a push handle 3, a top plate 4, a support 5, a vertical shaft body 6, a transverse frame body 7, a side frame body 8, a winding mechanism 9, a shaft body 10, a steel rope 11, U-shaped steel 12, a tensioning jack 13, a connecting piece 14, a rotary bolt 15, a counterweight groove 16 and a counterweight 17, wherein the support frame 1 is a square frame, the support leg 2 is arranged at the bottom of the support frame 1, the support leg 2 consists of a support leg 18 and a travelling wheel 19, the support leg 2 is arranged at four corners of the bottom of the support frame 1, the push handle 3 is connected with the support frame 1, the top plate 4 is connected with the support leg 2, the vertical shaft body 6 is connected with the top plate 4, the transverse frame body 7 is connected with the vertical shaft body 6, the side frame body 8 is connected with the vertical shaft body 6, the winding mechanism 9 is connected with the transverse frame body 7, the shaft body 10 is arranged at the end of the side frame body 8, the steel rope 11 is connected with the shaft body 10, the winding engine is formed by the transverse frame body 7, the side frame body 8, the winding mechanism 9, the shaft body 10 and the steel rope 11, a winding shaft is arranged in the winding mechanism 9, the vertical shaft body 6 is a rotating shaft, the U-shaped steel 12 is connected with the steel rope 11, the tensioning jack 13 is positioned below the U-shaped steel 12, the tensioning jack 13 is an intelligent tensioning jack, the connecting piece 14 is arranged on the tensioning jack 13, the rotary bolt 15 is arranged between the connecting piece 14 and the U-shaped steel 12, a connecting hole is formed in the bottom of the U-shaped steel 12 and the top of the connecting piece 14, a nut is arranged at the bottom of the rotary bolt 15 after the rotary bolt 15 is inserted from the connecting hole, the counterweight groove 16 is formed on the support frame, the counterweight block is arranged in the counterweight groove, the counterweight block is detachably arranged in the counterweight groove, and the weight of the counterweight block is more than or equal to 100kg.
The auxiliary device for hogging moment stretch-draw wholly is the shallow structure, the bottom of support frame 1 is provided with supporting legs 2, conveniently transport, but direct movement shallow transports equipment to the construction site, and roof 4 at support frame 1 top, support 5, vertical axis body 6 constitute the support body, and vertical axis body 6 is the pivot, and the support body wholly can rotate the regulation direction, horizontal support body 7, side bearer 8, winding mechanism 9, axis body 10, steel cable 11 constitute the hoist engine, and winding mechanism 9 is inside to be provided with the reel, and steel cable 11 is connected with U shaped steel 12, and U shaped steel 12 is connected with stretch-draw jack 13, utilizes the hoist engine unwrapping wire to put stretch-draw jack 13 into construction site and carries out construction operation, avoids high altitude operation, utilizes the hoist engine to put down stretch-draw jack 13 and can avoid artificial installation, and to a great extent reduces the potential safety hazard, and the device simple structure, the preparation is convenient, under the premise of guaranteeing construction safety, convenient to use, improvement efficiency, can use, the reduction personnel, the construction progress of machinery, reduction in production cost, the device bottom design walking wheel 19, the hoist and the whole walking device has been solved on the roof beam and has been difficult to walk, and the whole body has reduced weight, and has been convenient to walk.
When the auxiliary device for hogging moment tensioning is used for construction, the auxiliary device is integrally pushed to a construction position, the direction of a winch is adjusted from a vertical shaft body 6, a steel rope 11 is put down, the U-shaped steel 12 and a tensioning jack 13 are placed to the construction position, the positions of the U-shaped steel 12 and the tensioning jack 13 can be adjusted from a rotary bolt 15 in the process, hogging moment tensioning is facilitated, the tensioning jack 13 is a tensioning jack 13 disclosed in the prior art, the tensioning jack 13 is a special jack for tensioning prestressed tendons such as steel strands, the tensioning jack 13 is matched with a tensioning oil pump, the power of tensioning and returning is provided by high-pressure oil of the tensioning oil pump, a repeatedly used tool anchor is arranged in the tensioning jack 13, and a tool anchor clamping piece can be automatically clamped and loosened during tensioning.
Example 1
As shown in fig. 3-4, the auxiliary device for negative bending moment stretching in embodiment 1 is generally 1.5m in height, 1.8m in length, 1.2m in width and 102kg in weight (without counterweight), is provided with a high-efficiency energy-saving winch with motor power of 4.0KW and lifting weight of 500kg, and adopts common steel such as channel steel, round steel and the like, so that the device is small in size, light in weight and low in manufacturing cost.
As shown in fig. 3, an auxiliary device body 21 is placed on a beam top surface 20, the beam top surface 20 is provided with a construction opening, the auxiliary device body 21 is pushed to the position of the construction opening, the auxiliary device body 21 is matched with a first toothed plate 22 and a second toothed plate 23 to perform construction operation, a winch is used for lowering a tensioning jack 13, and after the auxiliary device body is lowered to a specified position, the tensioning jack 13 is used for performing hogging moment tensioning operation;
as shown in fig. 4, the two beam plates are a first beam plate 25 and a second beam plate 26, the distance between the first beam plate 25 and the second beam plate 26 is 75cm, the hogging moment tensioning port is located at the position of 45cm of the lower end of the beam plate, the inner diameter of the U-shaped steel 12 is 60cm, the distance from the top of the beam plate to the tensioning port is 45cm, 45cm is the distance from the top of the beam plate to the tensioning port, the tensioning jack 13 can be lifted to the lower end of a wing plate of the first beam plate 25 across the first beam plate 25, the rotary bolts 15 on the tensioning jack 13 are added, so that the position adjustment of the tensioning jack 13 is more convenient, the installation position is more accurate, the installation of the whole tensioning jack 13 is completed only by matching an upper person with a lower person, one person is responsible for the lifting of the winch, and one person is responsible for the installation of the tensioning jack 13, and in the tensioning process, the operator does not need to be always to observe on the lower operating platforms of the first beam plate 25 and the second beam plate 26, so that the hidden danger is greatly reduced and the hidden danger is saved;
the U-shaped steel 12 can provide an isolation barrier, and can skillfully avoid friction generated between the steel rope 11 and the first beam plate 25 and the second beam plate 26, thereby reducing the loss of tensioning prestress caused by external friction force in the tensioning process and greatly ensuring the tensioning quality;
the general weight of the tensioning jack 13 is about 80kg, in order to prevent the device from tilting, the auxiliary device body 21 is provided with the counterweight groove 16 at the top of the support, the counterweight 17 is placed in the counterweight groove 16, the counterweight which is more than or equal to 100kg is added at the tail end of the auxiliary device body 21, and the self weight of the auxiliary device body 21 is far more than that of the tensioning jack 13, so that the stability of the device in the tensioning process is further enhanced, and the auxiliary device body 21 is prevented from tilting in the operating process.
When designing U shaped steel 12 internal diameter size, should pay attention to this size and be greater than the roof beam and push up to stretch-draw mouthful distance, just so can guarantee the position installation accuracy of stretch-draw jack 13 and avoid the frictional force that produces with the beam slab, during the installation, only need two upper and lower people cooperate, and one person is responsible for the lift of hoist engine, and one person is responsible for installing stretch-draw jack 13, convenient and fast, labour saving and time saving.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the utility model, and that, although the utility model has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the utility model as defined by the appended claims.
Claims (6)
1. The auxiliary device for hogging moment stretch-draw is characterized by comprising a support frame, supporting legs, pushing hands, a top plate, a support, a vertical shaft body, a transverse frame body, a side frame body, a winding mechanism, a shaft body, a steel rope, U-shaped steel, a stretch-draw jack, a connecting piece, a rotary bolt, a counterweight groove and a counterweight block, wherein the support frame is a square frame, the supporting legs are arranged at the bottom of the support frame, the pushing hands are connected with the support frame, the top plate is connected with the supporting legs, the vertical shaft body is connected with the top plate, the transverse frame body is connected with the vertical shaft body, the side frame body is connected with the transverse frame body, the shaft body is arranged at the end part of the side frame body, the steel rope is connected with the shaft body, the stretch-draw jack is positioned below the U-draw jack, the rotary bolt is arranged between the connecting piece and the U-shaped steel, the counterweight groove is arranged on the support frame, and the counterweight block is arranged inside the counterweight groove.
2. An auxiliary device for negative moment tensioning as claimed in claim 1, wherein:
the supporting legs consist of supporting legs and travelling wheels, and the four corners of the bottom of the supporting frame are provided with the supporting legs.
3. An auxiliary device for negative moment tensioning as claimed in claim 1, wherein: the transverse frame body, the side frame body, the winding mechanism, the shaft body and the steel rope form a winch, and the winding mechanism is internally provided with a winding shaft.
4. An auxiliary device for negative moment tensioning as claimed in claim 1, wherein: the vertical shaft body is a rotating shaft.
5. An auxiliary device for negative moment tensioning as claimed in claim 1, wherein: the U-shaped steel bottom and the connecting piece top are provided with connecting holes, and after the rotary bolts are inserted from the connecting holes, nuts are arranged on the bottoms of the rotary bolts.
6. An auxiliary device for negative moment tensioning as claimed in claim 1, wherein: the balancing weight tank is internally provided with a balancing weight in a detachable mode, and the weight of the balancing weight is greater than or equal to 100kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321243659.0U CN219622296U (en) | 2023-05-22 | 2023-05-22 | Auxiliary device for negative bending moment stretching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321243659.0U CN219622296U (en) | 2023-05-22 | 2023-05-22 | Auxiliary device for negative bending moment stretching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219622296U true CN219622296U (en) | 2023-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321243659.0U Active CN219622296U (en) | 2023-05-22 | 2023-05-22 | Auxiliary device for negative bending moment stretching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219622296U (en) |
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2023
- 2023-05-22 CN CN202321243659.0U patent/CN219622296U/en active Active
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