A ram device capable of automatically adjusting height and tilt angle and application method thereof

Abstract

The present invention relates to the technical field of engineering jacking construction and building displacement, and in particular to a ram device capable of automatically adjusting height and tilt angle and an application method thereof, characterized in that it comprises a ram, a sliding friction reducing device, a vertical spring, a limiting device and a protective steel pad, wherein the sliding friction reducing device is arranged above the ram, the vertical spring is arranged at the bottom of the ram, the protective steel pad is arranged at the bottom of the vertical spring, and the limiting device is arranged at the periphery of the ram for limiting the vertical and longitudinal directions of the ram. The advantages of the present invention are that it can realize automatic adjustment of height and tilt angle in dragging construction; it does not need to be processed and manufactured separately, and can adopt standard ram spring components, which are light in weight, large in deformation, convenient in installation, and can be repeatedly disassembled and assembled.

Description

Technical Field

[0001] The invention relates to the technical field of engineering jacking construction and building displacement, in particular to a ram device capable of automatically adjusting height and tilt angle and an application method thereof. Background Art

[0002] In the field of engineering, the relocation of buildings is increasing. There are various ways to relocate buildings. The more common ones are the walking method and the dragging method, and each method has its own advantages and disadvantages.

[0003] The walking method has little impact on existing traffic, can reduce the amount of temporary structure engineering, and the jacking speed is relatively slow, but its high degree of intelligence can automatically adjust the stress state of the structure. The walking method has many advantages. It can be applied to the jacking line type, can control the jacking force in real time, can adjust it in time when the support reaction force is large, and can correct the lateral deviation in time. The jacking process has almost no damage to the main beam, and the jacking process is smooth and stable. However, its disadvantages are that the equipment is more complicated, the mechanical cost is high, and the jacking speed is slow.

[0004] The dragging method has low requirements on terrain conditions, can effectively ensure the splicing accuracy of steel beams, can operate continuously, and has a fast construction speed and a short construction period. The main beam is in a passive stress state, and the means and methods that can be adjusted are limited. The advantages of the dragging method are simple equipment, low cost, low construction and adjustment requirements, and little impact from the environment. The disadvantages are also obvious. Its mechanization level is low, and it is necessary to manually feed the slider to adjust the elevation. The reaction force of the pier top support is large, the lateral deviation control ability of the beam body is low, the linear control ability during the jacking process is weak, and the risk avoidance ability is poor. At the same time, it is necessary to set up an anchor system on the beam body.

[0005] Generally speaking, the dragging method is low in cost, fast in speed, and poor in stability, while the walking method is high in cost, slow in speed, and good in stability. At present, both methods have been widely used in the engineering field. Summary of the invention

[0006] The purpose of the present invention is to provide a slide device which can automatically adjust the height and tilt angle and its application method in view of the above-mentioned deficiencies in the prior art, by using the elastic compression of the standard spring at the bottom of the slide to automatically adjust the height and horizontal tilt angle of the slide, so as to realize the towing method bridge construction within a span of 70m.

[0007] The purpose of the present invention is achieved by the following technical solutions:

[0008] A sliding device capable of automatically adjusting height and tilt angle, characterized in that it comprises a sliding device, a sliding friction reducing device, a vertical spring, a limiting device and a protective steel pad, wherein the sliding friction reducing device is arranged above the sliding device, the vertical spring is arranged at the bottom of the sliding device, the protective steel pad is arranged at the bottom of the vertical spring, and the limiting device is arranged on the periphery of the sliding device for limiting the vertical and longitudinal directions of the sliding device.

[0009] The sliding friction reducing device comprises a tetrafluoroethylene slide plate and a stainless steel plate, wherein the stainless steel plate is arranged on the top surface of the ram, and the tetrafluoroethylene slide plate is arranged above the stainless steel plate.

[0010] The limiting device includes a vertical limiting block and a longitudinal limiting block, wherein the longitudinal limiting blocks are symmetrically arranged on both sides of the longitudinal direction of the slide, and the vertical limiting blocks are arranged on the upper periphery of the slide and symmetrically arranged on both sides of the slide along the longitudinal direction of the slide.

[0011] An arc-shaped tetrafluoroethylene slide plate is arranged below the vertical limit stopper.

[0012] A buffer rubber pad is arranged between the ram and the protective steel pad.

[0013] The vertical spring is formed by sleeve-jointing multiple layers of coil springs.

[0014] An application method of the above-mentioned ram device capable of automatically adjusting height and tilt angle, characterized in that the application method comprises the following steps:

[0015] After the construction of the temporary pier is dragged, the installation position of the longitudinal distribution beam is reserved, and protective steel pads, buffer rubber pads and vertical springs are placed on the longitudinal distribution beam. Then, the ram is installed above the vertical spring and a stainless steel plate and a polytetrafluoroethylene slide plate are laid on the top surface of the ram. At the same time, the longitudinal limit block and the vertical limit block of the arc-shaped polytetrafluoroethylene slide plate are installed on the ram.

[0016] The advantages of the present invention are: 1) The working principle and structure are relatively simple, and the installation and disassembly can also be standardized, and it can be disassembled after use; the equipment is easy to process and manufacture, all raw materials are conventional equipment, and can be reused, and the cost is low; the requirements for installation and use personnel are extremely low, and no professional personnel are required to operate; whether it is processing and manufacturing, or installation and collection, the lowest cost can basically be achieved.

[0017] 2) It can be applied to most of the dragging construction, greatly improving the local rotation performance of the dragging slide. No manual padding is required during the dragging process, which doubles the dragging efficiency. The construction operation is also extremely simple, and does not require a large amount of equipment and labor input. At the same time, it can also avoid human operation errors and equipment installation errors.

[0018] 3) It has good accuracy and excellent market application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the elevation structure of the present invention;

[0020] Figure 2It is a schematic diagram of the planar structure of the present invention. DETAILED DESCRIPTION

[0021] The features of the present invention and other related features are further described in detail below through embodiments in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:

[0022] like Figure 1-2 As shown, the marks 1-10 in the figure respectively represent: tetrafluoroethylene slide plate 1, stainless steel plate 2, slide ram 3, vertical limit block 4, arc-shaped tetrafluoroethylene slide plate 5, longitudinal limit block 6, vertical spring 7, buffer rubber pad 8, protective steel pad 9, longitudinal distribution beam 10.

[0023] Embodiment: In this embodiment, the slide device capable of automatically adjusting the height and the inclination angle comprises a slide 3. The slide 3 as a supporting body can support the towing structure, especially the bridge beam during the towing construction. The slide 3 can automatically adapt to the change of the curvature of the bottom of the beam, that is, realize the automatic adjustment of the height and the inclination angle.

[0024] Specifically, if Figure 1 and Figure 2 As shown, in order to reduce the sliding friction between the ram 3 and the towing structure, a stainless steel plate 2 and a tetrafluoroethylene slide plate 1 are laid on the top surface of the ram 3 as sliding friction reducing devices, wherein the stainless steel plate 2 is directly laid on the ram 3, and the tetrafluoroethylene slide plate 1 is laid on the stainless steel plate 2, and the area of ​​the tetrafluoroethylene slide plate 1 is satisfied to match the contact area between the towing structure, that is, the tetrafluoroethylene slide plate 1 is ensured to be the contact surface between the towing structure and the ram 3, so that the sliding friction between the towing structure and the ram 3 during towing is reduced by the tetrafluoroethylene slide plate 1 and the stainless steel plate 2, thereby facilitating the towing construction of the towing structure.

[0025] A vertical spring 7 is provided at the bottom of the ram 3, and the vertical spring 7 is evenly arranged below the ram 3; under the gravity of the dragging structure and the support of the vertical spring 7, the ram 3 will produce a certain elastic displacement downward, so that the interaction force between the ram 3 and the dragging structure increases. When the bottom surface of the dragging structure is uneven, the ram 3 can automatically form a rotation angle through the inconsistent compression of the front and rear vertical springs 7 to adapt to the curvature change of the bottom surface of the dragging structure, especially when it is applied to the bridge beam body constructed by the dragging method, the curvature of the beam bottom changes.

[0026] During construction, the ram 3 is mounted on the longitudinal distribution beam 10, and in order to prevent the ram 3 from vertically popping out of the longitudinal distribution beam 10, longitudinal limit blocks 6 for longitudinally limiting the ram 3 and vertical limit blocks 4 for vertically limiting the ram 3 are respectively arranged on the longitudinal front and rear sides of the ram 3. Figure 1 and Figure 2As shown, the longitudinal limit blocks 6 are symmetrically arranged on the longitudinal front and rear sides of the ram 3, and the vertical limit blocks 4 are also evenly and symmetrically arranged along the longitudinal direction of the ram 3 to ensure the limiting effect and stability. In order to prevent the ram 3 from getting stuck during rotation, arc-shaped polytetrafluoroethylene slide plates 5 are arranged at the positions of the front and rear longitudinal limit blocks 6 to reduce the rotation friction of the ram 3 when it rotates under pressure.

[0027] When the vertical load of the towing structure exceeds the bearing capacity of the vertical spring 7, the ram 3 is compressed and falls on the protective steel pad 9 arranged below it to avoid directly hitting the longitudinal distribution beam 10 and causing damage. At the same time, in order to reduce the impact force, a buffer rubber pad 8 is laid on the protective steel pad 9, which also protects the vertical spring 7 from damage.

[0028] The elastic function of the ram is realized by the above structure in this embodiment. The entire elastic ram is arranged on the longitudinal distribution beam 10 and can be flexibly arranged according to the position of the lower temporary support.

[0029] The ram device in this embodiment has the following application method:

[0030] After the construction of the temporary pier for dragging, the installation position of the longitudinal distribution beam 10 is reserved, and the protective steel pad 9, the buffer rubber pad 8 and the vertical spring 7 are placed on the longitudinal distribution beam 10, and then the ram 3 is installed and the stainless steel plate 2 and the tetrafluoroethylene slide plate 1 are laid on the top surface of the ram 3. In order to limit the longitudinal and vertical displacement of the ram 3, the longitudinal limit block 6 and the vertical limit block 4 with the arc-shaped tetrafluoroethylene slide plate 5 are installed. After the construction of the ram 3 is completed, it can be used as a support position to support the drag structure, so as to use it for the drag construction of the drag structure.

[0031] In the specific implementation of this embodiment: the vertical spring 7 can use a standard bolster spring, the spring height is about 20cm, when applied to the top pushing or dragging construction process of the bridge, the main beam bottom curve difference is within 10cm, and the ram device in this embodiment does not need to be used for padding construction, which can save a lot of manpower, material resources and time. When using, make full use of the protective steel pad 9 to ensure that the spring is not damaged. The vertical spring 7 uses a combination of multi-layer coil springs to ensure its support force; and when the single-point support reaction force is large, it can also be used side by side, which can greatly improve the elastic bearing capacity of a single ram.

[0032] Although the above embodiments have described in detail the concepts and embodiments of the present invention with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and changes can still be made to the present invention without departing from the scope of the claims, so they are not described one by one here.

Claims

1. A ram device capable of automatically adjusting height and tilt angle, characterized in that: It comprises a ram, a sliding friction reducing device, a vertical spring, a limiting device and a protective steel pad, wherein the sliding friction reducing device is arranged above the ram, the vertical spring is arranged at the bottom of the ram, the protective steel pad is arranged at the bottom of the vertical spring, and the limiting device is arranged at the periphery of the ram to limit the vertical and longitudinal directions of the ram; The limiting device comprises a vertical limiting block and a longitudinal limiting block, wherein the longitudinal limiting blocks are symmetrically arranged on both sides of the longitudinal direction of the ram, and the vertical limiting blocks are arranged on the upper periphery of the ram and symmetrically arranged on both sides of the ram along the longitudinal direction of the ram; An arc-shaped tetrafluoroethylene slide plate is arranged below the vertical limit stopper.

2. A ram device capable of automatically adjusting height and tilt angle according to claim 1, characterized in that: The sliding friction reducing device comprises a tetrafluoroethylene slide plate and a stainless steel plate, wherein the stainless steel plate is arranged on the top surface of the ram, and the tetrafluoroethylene slide plate is arranged above the stainless steel plate.

3. A ram device capable of automatically adjusting height and tilt angle according to claim 1, characterized in that: A buffer rubber pad is arranged between the ram and the protective steel pad.

4. A ram device capable of automatically adjusting height and tilt angle according to claim 1, characterized in that: The vertical spring is formed by sleeve-jointing multiple layers of coil springs.

5. An application method of the ram device capable of automatically adjusting height and tilt angle according to any one of claims 1 to 4, characterized in that: The application method comprises the following steps: After the construction of the temporary pier is dragged, the installation position of the longitudinal distribution beam is reserved, and protective steel pads, buffer rubber pads and vertical springs are placed on the longitudinal distribution beam. Then, the ram is installed above the vertical spring and a stainless steel plate and a polytetrafluoroethylene slide plate are laid on the top surface of the ram. At the same time, the longitudinal limit block and the vertical limit block of the arc-shaped polytetrafluoroethylene slide plate are installed on the ram.

Images