Large-span steel structure integral lifting device

Abstract

The utility model relates to the technical field of steel structure lifting devices, and discloses a large-span steel structure integral lifting device which comprises a supporting frame, two lifting oil cylinders are detachably installed on the front side of the supporting frame, and a positioning assembly used for positioning a steel strand is arranged on the top face of the supporting frame. The positioning assembly comprises a positioning seat fixed to the top face of the supporting frame, a fixed frame is fixed to the front side of the positioning seat, a movable seat is arranged above the positioning seat, a movable frame is rotationally connected to the top face of the movable seat, a plurality of positioning holes are formed in the top face of the fixed frame and one side of the movable frame, and positioning rods are rotationally connected into the positioning holes. The fixing frame is arranged over the lifting oil cylinder, the steel strand of the lifting oil cylinder is vertically positioned, and the situation that when the lifting oil cylinder lifts the steel strand, due to the fact that the take-up direction of the steel strand is inclined to the sighting telescope, the steel strand and the sighting telescope are subjected to high-strength abrasion, and the reliability of the device is affected is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel structure lifting device technical field especially relates to a large -span steel structure whole lifting device. BACKGROUND

[0002] High altitude large -span corridor often adopts steel structure as the base frame, pours concrete after steel structure frame builds up and shapes, and the traditional high altitude bulk mode, first builds up a large number of support frame, then carries out steel structure high altitude assembly mode and has been eliminated because of high risk, heavy workload, in the prior art, often adopt the steel structure to build welding on the ground, and then use hydraulic lifting device to lift steel structure corridor to the predetermined height.

[0003] The existing high altitude large -span steel structure corridor lifting device (announcement number: CN221275094U) at least has the following disadvantages: the positioning support of the device cannot be flexibly adjusted according to actual working conditions, the wire angle of the steel strand is fixed, when the external steel strand take-up device is at a lower or higher position, high -intensity wear and tear will occur between the steel strand and the sighting device or other devices of the outer wall of the lifting cylinder, thereby affecting the reliability of the device, and the utility model is proposed to solve the problem. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a large -span steel structure whole lifting device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A large -span steel structure whole lifting device, including support frame, the front side detachable mounting of support frame has two lifting cylinders, the top surface of support frame is provided with the positioning assembly for positioning steel strand, the positioning assembly includes the positioning seat fixed on the top surface of support frame, the front side of positioning seat is fixed with fixed frame, the top of positioning seat is provided with movable seat, the top surface of movable seat is rotatably connected with movable frame, the top surface of fixed frame and one side of movable frame are all provided with a plurality of positioning holes, the inside of positioning hole is rotatably connected with positioning rod.

[0007] As a further scheme of the utility model, the bottom surface of movable frame is fixed with lead screw, the top surface of positioning seat is provided with drive slot, the inside of drive slot is rotatably connected with first bevel gear, the inside screw thread connection of lead screw and first bevel gear, the rear side of movable frame is rotatably connected with drive rod, one end of drive rod extends to the inside of drive slot, the front end of drive slot is fixed with second bevel gear, and second bevel gear is engaged with first bevel gear.

[0008] As a further scheme of the utility model, the left and right sides of the movable seat are fixed with first connecting seats, the left and right sides of the positioning seat are fixed with second connecting seats, the top surface of the second connecting seat is rotationally connected with an adjusting bolt, the adjusting bolt is slidingly inserted with the bottom surface of the first connecting seat, and the outer wall of the adjusting bolt and located above the first connecting seat is threadedly connected with an adjusting nut.

[0009] As a further scheme of the utility model, the bottom surface of the movable seat is fixed with two limiting strips near the left and right sides, and the limiting strips are slidingly inserted with the top surface of the positioning seat.

[0010] As a further scheme of the utility model, the front side of the supporting frame is fixed with a plurality of triangular steels, the outer wall of the lifting oil cylinder is fixed with a supporting seat, and the supporting seat is detachably installed with the front side of the supporting frame.

[0011] As a further scheme of the utility model, the front side of the supporting frame is provided with a plurality of mounting holes.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The fixed frame is arranged above the lifting oil cylinder, the steel wire of the lifting oil cylinder is vertically positioned, the lifting oil cylinder is prevented from lifting the steel wire, the steel wire is prevented from being high-strength abraded with the sighting device, the device reliability is affected, the movable frame can be lifted up and down and rotated forward and backward to be flexibly adjusted, the steel wire of the fixed frame extension pool is secondarily positioned, the extension end of the steel wire is adjusted to correspond to the position of the steel wire winding device, the steel wire is prevented from being in a low position when being wound, the steel wire winding and the supporting frame are prevented from being high-strength abraded, and the device reliability is affected. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A three-dimensional structure schematic view of the whole lifting device of the large-span steel structure is provided for the utility model;

[0015] Figure 2 A three-dimensional structure schematic view of the positioning seat of the whole lifting device of the large-span steel structure is provided for the utility model;

[0016] Figure 3 A three-dimensional sectional structure schematic view of the positioning seat of the whole lifting device of the large-span steel structure is provided for the utility model;

[0017] Figure 4 A three-dimensional structure schematic view of the whole lifting device of the large-span steel structure is provided for the utility model; Figure 3 A three-dimensional structure schematic view of the whole lifting device of the large-span steel structure is provided for the utility model;

[0018] In the diagram: 1. Support frame; 101. Lifting cylinder; 2. Positioning seat; 201. Fixed frame; 202. Movable seat; 203. Movable frame; 204. Positioning hole; 205. Positioning rod; 206. Lead screw; 207. Drive groove; 208. First bevel gear; 209. Drive rod; 210. Second bevel gear; 3. First connecting seat; 301. Second connecting seat; 302. Adjusting bolt; 303. Adjusting nut; 4. Limiting strip; 5. Triangular steel; 501. Support seat; 6. Mounting hole. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figures 1-4 As shown, a large-span steel structure integral lifting device includes a support frame 1. Two lifting cylinders 101 are detachably installed on the front side of the support frame 1. A positioning component for positioning steel strands is provided on the top surface of the support frame 1. The positioning component includes a positioning seat 2 fixed on the top surface of the support frame 1. A fixed frame 201 is fixed on the front side of the positioning seat 2. A movable seat 202 is provided above the positioning seat 2. A movable frame 203 is rotatably connected to the top surface of the movable seat 202. Several positioning holes 204 are opened on the top surface of the fixed frame 201 and one side of the movable frame 203. A positioning rod 205 is rotatably connected inside the positioning holes 204.

[0023] like Figures 2-4As shown, in this embodiment, the bottom surface of the movable frame 203 is fixed with a lead screw 206, the top surface of the positioning seat 2 is provided with a driving groove 207, the inside of the driving groove 207 is rotatably connected with a first bevel gear 208, the lead screw 206 is threadedly connected with the inside of the first bevel gear 208, the rear side of the movable frame 203 is rotatably connected with a driving rod 209, one end of the driving rod 209 extends to the inside of the driving groove 207, the front end of the driving groove 207 is fixed with a second bevel gear 210, the second bevel gear 210 is engaged with the first bevel gear 208, the wire sighting device is installed on the large-span steel structure, then the steel strand is fixed on the wire sighting device, then the steel strand is connected to the lifting oil cylinder 101, then the steel strand is respectively threaded through the positioning holes 204 of the fixed frame 201 and the movable frame 203 and finally connected with the steel strand take-up device, at this time, the two positioning rods 205 of the positioning holes 204 abut against the outer wall of the steel strand and are positioned, the positioning holes 204 of the fixed frame 201 can vertically position the steel strand of the lifting oil cylinder 101, effectively preventing the lifting oil cylinder 101 from lifting the steel strand, and effectively preventing the steel strand from being in high-strength abrasion with the sighting device due to the inclination of the steel strand take-up direction to the sighting device, thereby affecting the reliability of the device, then the driving rod 209 is rotated to drive the second bevel gear 210 to rotate, under the engagement of the second bevel gear 210 and the first bevel gear 208, the first bevel gear 208 is rotated, under the threadedly connected action of the lead screw 206 and the inside of the first bevel gear 208, the lead screw 206 is lifted in the inside of the first bevel gear 208 while driving the movable seat 202 and the movable frame 203 to lift, then the front and rear deflection angles of the movable frame 203 are adjusted, so that the end portion of the steel strand extending from the positioning hole 204 of the movable frame 203 corresponds to the position of the steel strand take-up device or the included angle is less than one hundred and eighty degrees, thereby effectively preventing the steel strand from being in a low position with the take-up device during take-up, thereby effectively preventing the steel strand take-up and the support frame 1 from being in high-strength abrasion, thereby affecting the reliability of the device.

[0024] As shown, Figures 2-4 In this embodiment, the left and right sides of the movable seat 202 are fixed with first connecting seats 3, the left and right sides of the positioning seat 2 are fixed with second connecting seats 301, the top surface of the second connecting seat 301 is rotatably connected with an adjusting bolt 302, the adjusting bolt 302 is slidably inserted into the bottom surface of the first connecting seat 3, the outer wall of the adjusting bolt 302 and above the first connecting seat 3 is threadedly connected with an adjusting nut 303, the front and rear deflection positions of the movable frame 203 are adjusted by manually rotating, in this process, the adjusting bolt 302 slides on the first connecting seat 3, after the deflection position is determined, the adjusting nut 303 is rotated and tightly abuts against the top surface of the first connecting seat 3 to fix the movable frame 203, so that the movable frame 203 is fixed at the current deflection position, thereby achieving the adjustment of the front and rear deflection positions of the movable frame 203 and facilitating the control of the emergence angle of the steel strand.

[0025] As shown, Figures 2-4As shown in this embodiment, two limiting strips 4 are fixed on the bottom surface of the movable seat 202 near the left and right sides. The limiting strips 4 are slidably inserted into the top surface of the positioning seat 2. The limiting strips 4 can limit and support the lifting and lowering of the movable seat 202.

[0026] like Figures 2-4 As shown in this embodiment, several triangular steels 5 are fixed to the front side of the support frame 1, and a support seat 501 is fixed to the outer wall of the lifting cylinder 101. The support seat 501 is detachably installed on the front side of the support frame 1. By setting the triangular steels 5 and the support seat 501, the support strength of the lifting cylinder 101 can be increased, and the reliability of the device can be increased.

[0027] like Figures 2-4 As shown in this embodiment, the front side of the support frame 1 is provided with a number of mounting holes 6, which facilitates the installation of the device with the support structure of the construction point.

[0028] From the above description, it can be seen that the above embodiments of this utility model achieve the following technical effects: In use, when lifting a large-span steel structure, the steel strand sight is installed on the large-span steel structure, and then the steel strand is fixed on the steel strand sight. Then, the steel strand is connected to the lifting cylinder 101, and then the steel strand is passed through the positioning holes 204 of the fixed frame 201 and the movable frame 203 respectively and finally connected to the steel strand take-up device. At this time, the two positioning rods 205 of the positioning hole 204 abut against the outer wall of the steel strand and perform positioning. The positioning hole 204 of the fixed frame 201 can vertically position the steel strand of the lifting cylinder 101, effectively preventing the steel strand from being subjected to high-intensity wear due to the steel strand take-up direction being inclined to the sight when the lifting cylinder 101 lifts the steel strand, which would affect the reliability of the device. Then, the rotating drive rod 209 drives the second bevel gear 210 to rotate. When the second bevel gear 210 meshes with the first bevel gear 208, the first bevel gear 208 rotates. Under the action of the internal thread connection between the lead screw 206 and the first bevel gear 208, the lead screw 206 moves up and down inside the first bevel gear 208, which in turn drives the movable seat 202 and the movable frame 203 to move up and down. Then, the movable frame 203 is rotated to deflect its position back and forth. During this process, the adjusting bolt 302 slides on the first connecting seat 3. After the deflection position is determined, the adjusting nut 303 is rotated and tightly abuts against the top surface of the first connecting seat 3 to fix the movable frame 203. This ensures that the end of the steel strand extending from the positioning hole 204 of the movable frame 203 corresponds to the position of the steel strand winding device or the included angle is less than 180 degrees. This effectively prevents the steel strand from being in a low position when winding up, which would cause high-intensity wear between the steel strand winding and the support frame 1 and affect the reliability of the device.

[0029] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A device for lifting a large-span steel structure as a whole, comprising a support frame (1), characterized in that, The front side of the support frame (1) is detachably provided with two lifting oil cylinders (101), the top surface of the support frame (1) is provided with a positioning assembly for positioning the steel strand, the positioning assembly comprises a positioning seat (2) fixed on the top surface of the support frame (1), the front side of the positioning seat (2) is fixed with a fixed frame (201), the upper side of the positioning seat (2) is provided with a movable seat (202), the top surface of the movable seat (202) is rotatably connected with a movable frame (203), the top surface of the fixed frame (201) and one side of the movable frame (203) are provided with a plurality of positioning holes (204), and the inside of the positioning hole (204) is rotatably connected with a positioning rod (205).

2. The device according to claim 1, wherein, The bottom surface of the movable frame (203) is fixed with a lead screw (206), the top surface of the positioning seat (2) is provided with a driving groove (207), the inside of the driving groove (207) is rotatably connected with a first bevel gear (208), the lead screw (206) is threadedly connected with the inside of the first bevel gear (208), the rear side of the movable frame (203) is rotatably connected with a driving rod (209), one end of the driving rod (209) extends into the inside of the driving groove (207), the front end of the driving groove (207) is fixed with a second bevel gear (210), and the second bevel gear (210) is engaged with the first bevel gear (208).

3. The device according to claim 2, characterized in that, The left and right sides of the movable seat (202) are fixedly provided with a first connecting seat (3), and the left and right sides of the positioning seat (2) are fixedly provided with a second connecting seat (301).

4. The device according to claim 3, characterized in that, The bottom surface of the movable seat (202) is fixedly provided with two limiting strips (4) near the left and right sides, and the limiting strips (4) are slidably inserted into the top surface of the positioning seat (2).

5. The device according to claim 4, wherein, The front side of the support frame (1) is fixedly provided with a plurality of triangular steels (5), the outer wall of the lifting oil cylinder (101) is fixedly provided with a supporting seat (501), and the supporting seat (501) is detachably mounted on the front side of the support frame (1).

6. The device according to claim 5, wherein, The front side of the support frame (1) is provided with a plurality of mounting holes (6).

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