Jacking and transverse moving device and jacking and transverse moving system for assisting in dismantling bailey beam

Abstract

The utility model discloses a jacking and transverse moving device for assisting in dismantling a bailey beam. The jacking and transverse moving device comprises a supporting piece, a jacking assembly, a walking trolley and a walking track. In order to improve the stability of the device, an auxiliary fixing rod piece and a hook are further arranged. The jacking assembly is formed by movably connecting three sections of pipe fittings in the vertical direction, the upper section of pipe fitting is vertically and fixedly connected with the bottom of the supporting piece, and the lower section of pipe fitting is vertically and fixedly connected with the walking trolley; the three sections of pipe fittings are matched in a reversing mode at the connecting position, rotation of the middle section of pipe fitting is converted into relative movement of the upper section of pipe fitting and the lower section of pipe fitting in the vertical direction, and therefore the bailey beam is jacked. The walking track provides lateral limiting for the walking trolley, the walking trolley moves on the walking track in the extending direction of the walking track, and the bailey beam is transversely moved to appear in the beam pouring range. The utility model further provides a jacking and transverse moving system for assisting in dismantling the bailey beam. The system is formed by combining and installing a plurality of jacking and transverse moving devices at the two ends of the bailey beam.

Description

Technical Field

[0001] The utility model relates to the technical field of road and bridge engineering construction equipment, in particular to a jacking and lateral movement device for assisting Bailey beam removal. Background Art

[0002] Bailey beams have the characteristics of simple structure, convenient assembly and excellent bearing performance, and are widely used in the construction of cast-in-place beams in road and bridge projects. After the construction of cast-in-place beams is completed, it is impossible to use a crane to directly lift and dismantle the Bailey beams due to the limited space under the beams.

[0003] The two auxiliary demolition methods currently used in the project have obvious shortcomings: if a large forklift is used in conjunction with a steel support to lift and move the Bailey beam, the coordination and precision of the construction operation will be high, the construction will be difficult, and the cost of the steel support used will be high; if an excavator or loader is used in conjunction with a wire rope to directly drag the Bailey beam to the bottom of the cast beam, it will not only easily damage the Bailey beam component, but may also cause the lower support system to become unstable, posing a greater construction safety hazard. Utility Model Content

[0004] The main technical problem to be solved by the utility model is to provide a jacking and lateral movement device and system for assisting the removal of Bailey beams, which uses simple materials and is easy to operate under the premise of ensuring construction safety.

[0005] In order to solve the above technical problems, the utility model provides a jacking and lateral movement device for assisting the removal of Bailey beams, including a supporting member, a jacking assembly, a traveling trolley and a traveling track;

[0006] The supporting member is arranged horizontally to provide a supporting surface for the device to lift and move the Bailey beam;

[0007] The lifting assembly is composed of three sections of pipes, upper, middle and lower, which are movably connected in the vertical direction; the upper end of the upper section of the pipe is vertically fixed to the bottom of the supporting member, and the lower end of the lower section of the pipe is vertically fixed to the walking trolley;

[0008] The middle pipe is provided with an external force application point, which can be rotated by external force; the three pipes are matched at the connection, and the rotation of the middle pipe is converted into the vertical separation or movement of the upper pipe and the lower pipe, so that the jacking assembly can lift or lower the Bailey beam;

[0009] The walking track is set up between two adjacent columns, close to the two sides of the Bailey beam supporting steel beam; the walking trolley can move along the extension direction of the walking track, and the walking track provides lateral limitation for the walking trolley.

[0010] In a preferred embodiment: the supporting member includes a steel plate and a section of retaining steel; the retaining steel is welded to the upper surface of the steel plate, and its length direction passes through the geometric center of the steel plate; the cross-sectional width of the retaining steel is smaller than the assembly spacing between two adjacent Bailey plates.

[0011] In a preferred embodiment: the three sections of pipe fittings realize reversing transmission through spiral cooperation at the connection, that is, the lower end of the upper section of the pipe fitting, the two ends of the middle section of the pipe fitting and the upper end of the lower section of the pipe fitting are all provided with a section of thread; the threads at the two ends of the middle section of the pipe fitting are in opposite directions.

[0012] In a preferred embodiment, the external force application point on the middle section pipe is a group of radial clearance holes penetrating through the pipe wall, and the hole diameter is large enough for the rotating rod to pass through.

[0013] In a preferred embodiment: when the lifting assembly is connected to an adjacent component, a stiffening plate is provided at at least one connection.

[0014] In a preferred embodiment: the lifting assembly is limited in the horizontal direction by an auxiliary fixing rod.

[0015] In a preferred embodiment, the walking track is an I-shaped steel, and when it is installed on a column, the web of the I-shaped steel is horizontal and the flange is vertical.

[0016] In a preferred embodiment: hooks are arranged at intervals in the extension direction of the travel track; the hooks are hung on the Bailey beam support steel beam, and extend horizontally on both sides to support the travel track.

[0017] The utility model also provides a jacking and lateral movement system for assisting the removal of the Bailey beam. The system is obtained by assembling and installing the jacking and lateral movement devices as described above at both ends of the Bailey beam.

[0018] In a preferred embodiment: there is a supporting steel beam at each end of a group of Bailey beams, and a walking track is provided on both sides of each of the supporting steel beams; two groups of the devices are provided in the extension direction of each of the tracks, respectively located at the bottom of the two outermost Bailey plates of the Bailey beams.

[0019] Compared with the prior art, the technical solution of the utility model has the following beneficial effects:

[0020] The device provided by the utility model can lift the Bailey beam only by rotating a specific pipe fitting, which is flexible to operate and has low construction difficulty, thereby improving the work efficiency of disassembling the Bailey beam.

[0021] The components of the device can be obtained by taking materials on site and simply processing them, and are easy to disassemble and assemble, and can be recycled, thereby saving construction costs;

[0022] The device has reliable connection and stable structure, and utilizes sliding friction to drag the Bailey beam away from the range of the cast-in-place beam, thereby reducing the potential safety hazards when disassembling in a traditional way. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall connection of the device in the preferred embodiment of the utility model, wherein A is a front view of the schematic diagram and B is a side view;

[0024] Figure 2 Schematic diagram of the supporting member in the preferred embodiment of the utility model, wherein A is a front view of the schematic diagram, and B is a side view;

[0025] Figure 3 It is a schematic diagram of the jacking assembly described in the preferred embodiment of the utility model;

[0026] Figure 4 Schematic diagram of the traveling trolley in the preferred embodiment of the utility model, wherein A is a front view of the schematic diagram and B is a side view;

[0027] Figure 5 This is a schematic diagram of the arrangement of the hook in the preferred embodiment of the utility model;

[0028] Figure 6 It is a schematic diagram of the installation of the device under the Bailey beam in the preferred embodiment of the utility model.

[0029] 1-lifting and transverse shifting device, 2-hook, 3-Bailey beam, 4-supporting steel column, 5-supporting steel beam; 11-supporting member, 12-lifting assembly; 13-traveling trolley, 15-traveling track, 16-auxiliary fixing rod; 111-positioning channel steel, 112-supporting steel plate, 121-upper section steel pipe, 122-middle section steel pipe, 123-lower section steel pipe, 131-U-shaped steel plate, 132-traveling wheel, 133-pin shaft, 134-steel pipe sleeve, 141-first stiffening plate, 142-second stiffening plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "installed / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted 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 the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0033] refer to Figure 1 to Figure 6 The preferred embodiment provides a lifting and traversing device for assisting the removal of Bailey beams, comprising a supporting member 11, a lifting assembly 12, a traveling trolley 13 and a traveling track 15. In order to improve the rigidity of the lifting and traversing device itself, a first stiffening plate 141 and a second stiffening plate 142 are provided at the connection between the lifting assembly 12 and adjacent components; in order to improve the overall stability of the device, an auxiliary fixing rod 16 is additionally provided to limit the lifting assembly 12 in the horizontal direction.

[0034] like Figure 2 As shown, the supporting member 11 is composed of a horizontal supporting steel plate 111 and a section of retaining channel steel 112 welded together. In the preferred embodiment, the thickness of the supporting steel plate 111 is 10 mm. The notch of the retaining channel steel 112 faces upward, and the web is welded to the upper surface of the supporting steel plate 111, and its length direction passes through the geometric center of the supporting steel plate 111. In order to prevent the Bailey beam 3 from sliding in the lateral direction and cooperate with the jacking assembly 12 to work, the retaining channel steel 112 needs to be embedded in the bottom of the Bailey beam 3 for limiting cooperation. Therefore, the cross-sectional width of the retaining channel steel 112 is smaller than the rod gap at the bottom of a single Bailey sheet.

[0035] like Figure 3As shown, in this preferred embodiment, the jacking assembly 12 is composed of three sections of steel pipes connected by threads in the vertical direction. Threads are provided at the lower end of the upper steel pipe 121, at both ends of the middle steel pipe 122, and at the upper end of the lower steel pipe 123, and the threads at both ends of the middle steel pipe 122 are reverse to each other. A set of radial relief holes are drilled in the middle of the middle steel pipe 122 to allow a rod to pass through for axial rotation. In this preferred embodiment, in order to improve the anti-deformation ability of the middle steel pipe 122 under external forces, the specific way to set the radial relief holes is as follows: drill the relief holes radially on the side wall of a regular hexagonal nut, and then weld two equal-length sub-pipes through the regular hexagonal nut to form the middle pipe fitting 122, and the axes of the two sub-pipes and the regular hexagonal nut are on the same straight line.

[0036] As Figure 4 shown, in this preferred embodiment, the traveling trolley 13 is composed of a U-shaped steel plate 131, traveling wheels 132, pin shafts 133, and steel pipe sleeves 134. The traveling wheels 132 are installed in the chamber enclosed by the U-shaped steel plate through the pin shafts 133. The steel pipe sleeves 134 are vertically welded on the U-shaped plate and are used to sleeve the auxiliary fixing rods 16.

[0037] In this preferred embodiment, the traveling track 15 adopts HW125 I-beam steel. When it is erected on two adjacent support steel columns 4, the web of the I-beam steel is horizontal and the flange is vertical. To improve the stability of the device 1 during movement and cooperate with the jacking assembly 12 for work, the side flanges of the traveling track 15 need to produce lateral limits on the traveling trolley 13, so the web width of the traveling track 15 is similar to the width of the trolley 13.

[0038] In actual engineering, the spacing between the support steel columns 4 is usually large, which puts high requirements on the stiffness of the traveling track 15. Therefore, the hook 2 is hung at the relatively weak mid-span position to assist in supporting the traveling track 15. As Figure 5 shown, in this preferred embodiment, the hook 2 is welded by several steel plates and is in a symmetric "Ji" shape as a whole. The thickness of the steel plate is 10 mm and the width is 50 mm. The inner net width of the hook 2 is the same as the width of the support steel section 5, so that it can be bite-sleeved on the support steel section 5. Horizontal supporting platforms are provided on both sides of the hook 2, and the supporting platforms extend outwards to support the traveling track 15. Stiffening ribs are provided at the lower part of the supporting platform to prevent the supporting platform from bending and deforming under the action of load, resulting in the slipping of the traveling track 15.

[0039] As Figure 1As shown, the upper end of the jacking assembly 12 is vertically welded to the bottom center of the supporting member 11, and a plurality of first stiffening plates 141 are arranged around the connection; the lower end of the jacking assembly 12 is vertically welded to the upper part of the U-shaped steel plate 131 of the traveling trolley 13, and a plurality of second stiffening plates 142 are arranged around the connection. The arrangement of the stiffening plates is not limited to that described in the preferred embodiment. In other embodiments, the stiffening plates may be arranged at only one of the two connection locations mentioned above.

[0040] On the basis of this connection relationship, the working principle of the jacking assembly is now described. In this preferred embodiment, the jacking assembly 12 realizes the reversing transmission cooperation through the spiral mechanism between each section of the steel pipe. When the jacking and transverse movement device 1 is installed at the bottom of the Bailey beam 3, the positioning channel steel 111 is embedded between the bottom rods of the Bailey plate, and the supporting member 11 realizes the limited position cooperation with the Bailey beam 3. Since the upper section steel pipe 121 is welded to the supporting member 11, it cannot rotate axially. Similarly, the lower section steel pipe 123 is welded to the walking trolley 13, so it cannot rotate axially due to the limited position cooperation between the walking trolley 13 and the flange of the walking track 15. Therefore, when the middle section steel pipe 122 rotates axially under the action of external force, the upper section steel pipe 121 and the lower section steel pipe 123 are fixed, and both rotate relative to the middle section steel pipe 122. Due to the reversing transmission mechanism of the screw mechanism, the relative rotation is converted into an axial relative movement between the upper steel pipe 121 , the lower steel pipe 123 and the middle steel pipe 122 .

[0041] Since the threads at both ends of the middle steel pipe 122 are in opposite directions, when the middle steel pipe 122 rotates in a certain direction, the upper steel pipe 121 and the lower steel pipe 123 move away from the middle steel pipe 122, and the jacking assembly 12 extends in the vertical direction, thereby lifting the Bailey beam 3. Similarly, when the middle steel pipe 122 rotates in the opposite direction, the upper steel pipe 121 and the lower steel pipe 123 move toward each other with the middle steel pipe 122, and the jacking assembly 12 shrinks in the vertical direction, thereby lowering the Bailey beam 3.

[0042] The mechanical form used to achieve the reversing transmission cooperation between the three sections of the jacking assembly 12 is not limited to the description in this preferred embodiment. In other embodiments, the reversing transmission cooperation can also be achieved by mechanical forms such as gear cooperation at the connection of the three sections of the pipe.

[0043] refer to Figure 6, the technical solution in this preferred embodiment is now further described in combination with the working mode of the jacking and transverse shifting device 1. Two walking tracks 15 are arranged on both sides of the supporting steel beam 5, and auxiliary measures such as spot welding are adopted to stably set the two ends of the walking track 5 on the top of the supporting steel column 4. The positioning channel steel 111 is embedded in the bottom of the Bailey beam 3, and the walking trolley 13 is aligned and placed in the walking track 15 by adjusting the pipe fittings of the jacking assembly 12. The jacking and transverse shifting device 1 is calibrated to keep it vertical, and then the pipe fittings of the jacking assembly 12 are further adjusted to make the device 1 fully abut against the Bailey beam 3. The bottom of the auxiliary fixing rod 16 is inserted into the steel pipe sleeve 134, and at least two positions are selected on the upper part of the rod to be tied and connected with the Bailey beam 3. In particular, the tying connection only limits the auxiliary fixing rod 16 in the horizontal direction, and it can still achieve lifting in the vertical direction. The middle steel pipe 122 of each group of the lifting and traversing devices 1 is synchronously and unidirectionally rotated by means of a rotating rod to lift the Bailey beam 3 away from the supporting steel beam 5. The Bailey beam 3 is dragged along the walking track 15 to outside the range of the cast-in-place beam by manual pulling or towing by an engineering vehicle, so as to provide operating space for the subsequent crane to lift the Bailey beam 3.

[0044] This preferred embodiment also provides a jacking and lateral movement system for assisting the removal of the Bailey beam, and the system is obtained by combining and installing the jacking and lateral movement device 1 as described above at both ends of the Bailey beam 3.

[0045] Usually, both ends of a group of Bailey beams 3 are supported by at least one supporting steel beam 5. In this preferred embodiment, a walking track 15 is arranged next to both sides of each supporting steel beam 5, that is, at least four walking tracks 15 are set up to assist in the removal of a group of Bailey beams 3. In order to prevent the Bailey beams 3 from tipping over during the lifting and transverse movement, two lifting and transverse movement devices 1 are arranged in front and behind in the extension direction of each walking track 15, respectively located at the bottom of the two outermost Bailey plates of the Bailey beams 3. Therefore, in this preferred embodiment, at least eight lifting and transverse movement devices 1 are arranged to assist in the removal of a group of Bailey beams 3.

[0046] The above is only a preferred specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any technician familiar with the technical field who uses this concept to make non-substantial changes to the utility model within the technical scope disclosed by the utility model shall be deemed to infringe the protection scope of the utility model.

Claims

1. A lifting and traversing device for assisting Bailey beam removal, characterized in that: It includes supporting parts, lifting components, traveling trolleys and traveling tracks; The supporting member is arranged horizontally to provide a supporting surface for the device to lift and move the Bailey beam; The lifting assembly is composed of three sections of pipes, namely, upper, middle and lower sections, which are movably connected in the vertical direction; the upper end of the upper section of the pipe is vertically fixed to the bottom of the supporting member, and the lower end of the lower section of the pipe is vertically fixed to the walking trolley; The middle pipe is provided with an external force application point, which can be rotated by external force; the three pipes are matched at the connection, and the rotation of the middle pipe is converted into the vertical separation or movement of the upper pipe and the lower pipe, so that the jacking assembly can lift or lower the Bailey beam; The walking track is set up between two adjacent columns, close to the two sides of the Bailey beam supporting steel beam; the walking trolley can move along the extension direction of the walking track, and the walking track provides lateral limitation for the walking trolley.

2. The lifting and traversing device for assisting Bailey beam removal according to claim 1, characterized in that: The supporting member includes a steel plate and a section of retaining steel; the retaining steel is welded to the upper surface of the steel plate, and its length direction passes through the geometric center of the steel plate; the cross-sectional width of the retaining steel is smaller than the rod gap at the bottom of a single Bailey plate.

3. The lifting and traversing device for assisting Bailey beam removal according to claim 1, characterized in that: The three-section pipe fittings realize reversing transmission through the spiral cooperation at the connection, that is, the lower end of the upper section pipe fitting, the two ends of the middle section pipe fitting and the upper end of the lower section pipe fitting are all provided with a section of thread; the threads at the two ends of the middle section pipe fitting are in opposite directions.

4. The lifting and traversing device for assisting Bailey beam removal according to claim 1, characterized in that: The external force application point on the middle section pipe is a group of radial clearance holes which are arranged through the pipe wall, and the hole diameters thereof are capable of allowing the rotating rod to pass through.

5. The lifting and traversing device for assisting Bailey beam removal according to claim 1, characterized in that: When the jacking assembly is connected to an adjacent component, a stiffening plate is provided at at least one connection.

6. The lifting and traversing device for assisting Bailey beam removal according to claim 1, characterized in that: The jacking assembly is limited in the horizontal direction by an auxiliary fixing rod.

7. The lifting and traversing device for assisting Bailey beam removal according to claim 1, characterized in that: The walking track is an I-shaped steel. When the I-shaped steel is erected on a column, the web of the I-shaped steel is horizontal and the flange is vertical.

8. The lifting and traversing device for assisting Bailey beam removal according to claim 1, characterized in that: In the extension direction of the walking track, hooks are arranged at intervals; the hooks are hung on the Bailey beam supporting steel beam, and extend horizontally on both sides to support the walking track.

9. A lifting and lateral movement system for assisting Bailey beam removal, characterized in that: The system is obtained by combining and installing the jacking and traversing device described in any one of claims 1 to 8 at both ends of the Bailey beam.

10. A jacking and lateral movement system for assisting Bailey beam removal according to claim 9, characterized in that: There is a supporting steel beam at each end of a group of Bailey beams, and a walking track is arranged on both sides of each supporting steel beam; two groups of the devices are arranged in the extension direction of each track, and are respectively located at the bottom of the two outermost Bailey plates of the Bailey beam.

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