High-precision regulation and control device for bailey truss of steel trestle

Abstract

The invention provides a steel trestle bailey truss high-precision regulation and control device, and relates to the technical field of steel trestle construction, the steel trestle bailey truss high-precision regulation and control device comprises a transverse moving chassis, an inclined bearing sliding structure and a lateral pushing structure, the lateral pushing structure and the inclined bearing sliding structure are arranged on the other side of the top of the transverse moving chassis side by side, and the lateral pushing structure is provided with a telescopic structure; the pushing mechanism is used for pushing the bailey truss to slide on the inclined surface of the inclined bearing sliding structure; the clamping driving mechanism is arranged on the side, away from the bailey truss, of the transverse moving chassis, connected with the steel beam and used for fixing the position of the adjusting and controlling device; according to the adjusting and controlling device, the transverse position and the longitudinal position of the adjusting and controlling device on the steel beam can be adjusted when the bailey truss is erected, and the problem that the bailey truss is difficult to move and adjust in the existing steel trestle construction process is solved.

Description

Technical Field

[0001] The invention relates to the technical field of steel trestle construction, and in particular to a high-precision control device for a Bailey frame of a steel trestle. Background Art

[0002] Steel trestle is a bridge structure widely used in transportation construction projects and disaster relief projects. Bailey frame, as its core component, is lightweight, standardized, and easy to assemble and disassemble. However, in the process of erecting Bailey frame, the problem of inconvenient positioning and movement has become increasingly prominent, bringing many challenges and impacts to the construction.

[0003] During the installation process, the Bailey frame needs to be precisely moved to the designated location for installation. However, due to the weight and volume of the Bailey frame and the complex environment of the construction site, moving the Bailey frame often becomes difficult. Especially in uneven or narrow sites, moving the Bailey frame requires a lot of manpower and material resources.

[0004] The inconvenient positioning and movement not only increases the difficulty of construction, but also seriously affects the construction progress. Construction workers need to spend more time and energy to move and position the Bailey frame, which prolongs the entire project period. Summary of the invention

[0005] The embodiment of the present invention provides a high-precision control device for a Bailey frame of a steel trestle. When the Bailey frame is erected, the control device can be used to realize the movement of the Bailey frame in two degrees of freedom, namely, lateral and longitudinal directions, thereby solving the problem of difficult movement during the above-mentioned construction process.

[0006] In view of the above problems, the technical solution proposed by the present invention is: A high-precision control device for a steel trestle Bailey frame, comprising: A transversely movable chassis for supporting the Bailey frame; and for moving the Bailey frame along the length direction of the steel beam; An inclined supporting sliding structure is arranged on the top of the transversely movable chassis on one side close to the Bailey frame, and an inclined surface is arranged on the side close to the Bailey frame, and the Bailey frame contacts the inclined surface. The inclined supporting sliding structure is used to move the Bailey frame along the width direction of the steel beam; and slide the Bailey frame to the top of the steel beam; The lateral push structure is arranged side by side with the inclined support sliding structure on the other side of the top of the transverse moving chassis, and has a telescopic structure for pushing the Bailey frame to slide on the inclined surface of the inclined support sliding structure; The clamping drive mechanism is arranged on a side of the transverse moving chassis away from the Bailey frame, is connected to the steel beam, and is used to fix the position of the regulating device; and drives the regulating device to move on the steel beam.

[0007] In order to better implement the technical solution of the present invention, the following technical measures are also adopted.

[0008] Furthermore, the transversely movable chassis includes a base, a roller is arranged at a position where the base contacts the top of the steel beam, and a lateral pulley is arranged at a position where the base contacts the edge of the steel beam.

[0009] Furthermore, the inclined supporting sliding structure includes an inclined frame connected to the base, and a plurality of rollers are provided on the inclined surface of the inclined frame. The direction of rotation of the rollers is aligned with the direction of rotation of the roller shaft. Comb tooth grooves are provided in the gaps between the rollers on the inclined surface, and a comb tooth push plate is provided inside the comb tooth push plate. A first telescopic cylinder is connected between the comb tooth push plate away from the inclined surface and the inclined frame to drive the comb tooth push plate to extend or retract from the comb tooth groove.

[0010] Furthermore, the lateral pushing structure includes a mounting seat connected to the base, and at least two second telescopic cylinders are arranged on the top of the mounting seat, wherein the output ends of the second telescopic cylinders face the Bailey frame.

[0011] Furthermore, a reinforcing rib is provided on a side of the second telescopic cylinder away from the Bailey frame, one end of the reinforcing rib is connected to the second telescopic cylinder, and the other end is connected to the base.

[0012] Furthermore, the clamping drive mechanism includes a connecting seat, which is connected to the edge in the width direction of the base, and two clamping arms are hinged on the side of the connecting seat close to the steel beam, wherein a long hole is opened on the clamping arm, and a roller and a first drive motor are arranged at the end of the clamping arm. The output shaft of the first drive motor is connected to the axis of the roller for driving its rotation. It also includes a threaded sleeve and a slider, one end of the threaded sleeve is hinged to one of the clamping arms, and the slider is arranged in the long hole of the other clamping arm. The long hole limits the moving direction of the slider, and the slider slides along the length direction of the clamping arm. A second drive motor is arranged on the top of the slider, and the output shaft of the second drive motor is provided with a screw rod, which passes through the slider and is threadedly connected to the threaded sleeve.

[0013] Further, the roller is made of steel and has teeth grooves on its surface.

[0014] Furthermore, two clamping drive mechanisms are provided and distributed on both sides of the base.

[0015] Compared with the prior art, the beneficial effect of the present invention is that when erecting a steel trestle, the regulating device can be used to realize the lateral and longitudinal movement of the Bailey frame, which is convenient for the construction of the steel trestle and effectively reduces the difficulty of erecting the Bailey frame.

[0016] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the structure of a Bailey frame for setting up a control device disclosed in an embodiment of the present invention; Figure 2 The first setting state of the control device disclosed in the embodiment of the present invention; Figure 3 The second installation state of the control device disclosed in the embodiment of the present invention (the first telescopic cylinder and the second telescopic cylinder are extended); Figure 4 The second installation state of the control device disclosed in the embodiment of the present invention (the second telescopic cylinder continues to extend); Figure 5 This is a schematic diagram of the structure in which the control device disclosed in an embodiment of the present invention is installed on a steel beam; Figure 6 A schematic diagram of the structure of the control device disclosed in the embodiment of the present invention from a first viewing angle; Figure 7 for Figure 6 The enlarged structural diagram at A in the middle; Figure 8 A schematic diagram of the structure of the control device disclosed in the embodiment of the present invention from a second viewing angle; Fig. 9 A schematic diagram of the structure of the control device disclosed in the embodiment of the present invention from a third viewing angle; Fig.10 This is a schematic structural diagram of the fourth viewing angle of the control device disclosed in an embodiment of the present invention.

[0018] : 1. Bailey frame; 2. Steel beam; 3. Control device body; 31. Laterally movable chassis; 31a. Base; 31b. Roller; 31c. Lateral pulley; 32. Inclined supporting sliding structure; 32a. Inclined frame; 32b. Inclined surface; 32c. Comb tooth groove; 32d. Roller; 32e. Comb tooth push plate; 32f. First telescopic cylinder; 33. Lateral pushing structure; 33a. Mounting seat; 33b. Second telescopic cylinder; 33c. Reinforcing rib; 34. Clamping drive mechanism; 34a. Connecting seat; 34b. Clamping arm; 34c. Long hole; 34d. Roller; 34e. First drive motor; 34f. Threaded sleeve; 34g. Sliding block; 34h. Second drive motor. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Figure 1 and Figure 5A schematic diagram of the structure of the regulating device disclosed in an embodiment of the present invention for erecting a Bailey frame 1 is shown. In the process of using the regulating device to erect the Bailey frame 1, at least two regulating devices are required on a steel beam 2 to support and adjust the position of the Bailey frame 1.

[0021] Among them, the number of control devices is set according to the number of installation points of the Bailey frame 1 on the steel beam 2. Specifically, one installation point on the Bailey frame 1 corresponds to two control devices. For example, when a steel beam 2 has one installation point, two control devices are used on both sides of the installation point of the Bailey frame 1 to support the two sides of the installation point of the Bailey frame 1.

[0022] When the regulating devices are setting up the Bailey frame 1, the two regulating devices move in a mirror-synchronous manner.

[0023] like Figures 2~4 As shown, three states of the Bailey frame 1 erected by the regulating device are shown.

[0024] The first state, such as Figure 2 As shown, at this time, the Bailey frame 1 is placed on the regulating device. At this time, when the clamping drive mechanism 34 is not started, the regulating device is in a state of fixed lateral position. At this time, the Bailey frame 1 can only be moved in the longitudinal direction. After the clamping drive mechanism 34 is started, the Bailey frame 1 can be moved in the lateral direction.

[0025] Among them, Figures 6 to 10 As shown, the clamping drive mechanism 34 includes a connecting seat 34a, which is connected to the edge of the base 31a in the width direction. Two clamping arms 34b are hinged on the side of the connecting seat 34a close to the steel beam 2, wherein a long hole 34c is opened on the clamping arm 34b, and a roller 34d and a first drive motor 34e are arranged at the end of the clamping arm 34b. The output shaft of the first drive motor 34e is connected to the axis of the roller 34d for driving it to rotate, and also includes a threaded sleeve The sleeve 34f and the slider 34g are respectively provided with a threaded sleeve 34f and a slider 34g, one end of the threaded sleeve 34f is hinged to one of the clamping arms 34b, the slider 34g is arranged in the long hole 34c of the other clamping arm 34b, the long hole 34c limits the moving direction of the slider 34g, the slider 34g slides along the length direction of the clamping arm 34b, a second driving motor 34h is provided at the top of the slider 34g, and a screw is provided on the output shaft of the second driving motor 34h, the screw passes through the slider 34g and is threadedly connected with the threaded sleeve 34f.

[0026] Two clamping drive mechanisms 34 are provided, distributed on both sides of the base 31a, and the roller 34d is made of steel and has teeth grooves on its surface.

[0027] When the lateral position is fixed, the first drive motor 34e is in a stopped state, and the second drive motor 34h drives the screw to rotate and engage with the threaded sleeve 34f, driving the two clamping arms 34b to move together to engage the roller 34d on the steel beam 2, thereby fixing the lateral position of the regulating device.

[0028] When lateral movement is required, the first drive motor 34e is started and the second drive motor 34h is kept turned on. The first drive motor 34e drives the roller 34d to move along the length direction of the steel beam 2, so that the lateral movement control device adjusts the lateral position of the Bailey frame 1.

[0029] The first drive motor 34e and the second drive motor 34h are reduction motors.

[0030] The second state, such as Figure 3 As shown, at this time, the Bailey frame 1 is placed on the regulating device. At this time, when the clamping drive mechanism 34 is not started, the regulating device is in a state of being fixed in a lateral position.

[0031] like Figures 6 to 10 As shown, the inclined supporting sliding structure 32 includes an inclined frame 32a connected to the base 31a, and a plurality of rollers 32d are provided on the inclined surface 32b of the inclined frame 32a. The direction of rotation of the rollers 32d is arranged in the same direction as that of the roller 31b. Comb tooth grooves 32c are provided in the gaps between the rollers 32d on the inclined surface 32b, and a comb tooth push plate 32e is provided inside the comb tooth push plate 32e. A first telescopic cylinder 32f is connected between the comb tooth push plate 32e away from the inclined surface 32b and the inclined frame 32a, so as to drive the comb tooth push plate 32e to extend or retract from the comb tooth groove 32c.

[0032] The lateral pushing structure 33 includes a mounting seat 33 a connected to the base 31 a , and at least two second telescopic cylinders 33 b are arranged on the top of the mounting seat 33 a , wherein the output ends of the second telescopic cylinders 33 b face the Bailey frame 1 .

[0033] In this state, the first telescopic cylinder 32f extends to push the comb tooth push plate 32e to move along the comb tooth groove 32c, lifting the Bailey frame 1 and separating it from the roller 32d. At this time, the Bailey frame 1 cannot move longitudinally. At the same time, the second telescopic cylinder 33b extends and contacts the Bailey frame 1.

[0034] In order to support the second telescopic cylinder 33b and improve the structural strength of the lateral pushing structure 33, a reinforcing rib 33c is provided on the side of the second telescopic cylinder 33b away from the Bailey frame 1, one end of the reinforcing rib 33c is connected to the second telescopic cylinder 33b, and the other end is connected to the base 31a.

[0035] The third state, such as Figure 4As shown, at this time, based on the second state, the second telescopic cylinder 33b continues to extend to push the Bailey frame 1.

[0036] When the second telescopic cylinder 33b continues to extend, the clamping drive mechanism 34 drives the regulating device to move away from the Bailey frame 1. The effect of this operation is to separate the regulating device from the Bailey frame 1, so that the Bailey frame 1 falls to the adjusted position.

[0037] Specifically, start the first drive motor 34e and keep the second drive motor 34h turned on. The first drive motor 34e drives the roller 34d to rotate, and the roller 34d drives the regulating device on the steel beam 2 to move away from the Bailey frame 1 along its length direction. At this time, the Bailey frame 1 is in a relatively static state, and the regulating devices placed on both sides of its installation point move in a direction away from the Bailey frame 1. The surface of the comb push plate 32e and the inclined surface 32b of the inclined frame 32a slide relative to the Bailey frame 1 under the push of the second telescopic cylinder 33b until the regulating device is completely separated from the Bailey frame 1. At this time, the installation of the Bailey frame 1 is completed.

[0038] like Fig.10 As shown, the transversely movable chassis 31 includes a base 31 a , a roller 31 b is provided at the position where the base 31 a contacts the top of the steel beam 2 , and a lateral pulley 31 c is provided at the position where the base 31 a contacts the edge of the steel beam 2 .

[0039] The use process of this control device includes the following steps: Before erecting the Bailey frame 1, after placing the regulating device body 3 on the steel beam 2, the position of the regulating device body 3 on the steel beam 2 is moved by using the roller 31b and the lateral pulley 31c; After adjusting the distance between the two control device bodies 3 according to the size of the Bailey frame 1 erection point, the clamping drive mechanism 34 is used to fix the position and adjust the position of the control device bodies 3 on all the steel beams 2; Use a lifting device to place the Bailey frame 1 on the regulating device. At this time, both sides of the Bailey frame 1 are in contact with the roller 32d of the inclined supporting sliding structure 32 respectively. The roller 32d is used to adjust the longitudinal position of the Bailey frame 1; After the adjustment is completed, the first telescopic cylinder 32f is started to extend the comb push plate 32e to separate the Bailey frame 1 from the roller 32d. At this time, the Bailey frame 1 cannot adjust the longitudinal position; Turn on the first drive motor 34e, keep the second drive motor 34h, and drive the roller 34d to adjust the lateral position of the Bailey frame 1; After the adjustment is completed, the second telescopic cylinder 33b is opened, and at the same time, the first drive motor 34e runs in the reverse direction, and the drive roller 34d runs in the reverse direction, so that the drive control device body 3 is separated from the Bailey frame 1; At this time, the Bailey frame 1 is in a horizontal position and is stationary. During the process of driving the regulating device body 3 to separate from the Bailey frame 1, the Bailey frame 1 slowly approaches the steel beam 2. After the regulating device body 3 is completely separated from the Bailey frame 1, the Bailey frame 1 falls to the top of the steel beam 2. At this time, the position adjustment of the Bailey frame 1 is completed.

[0040] The high-precision regulating device for the Bailey frame 1 of the steel trestle proposed in the present invention can realize the movement of the Bailey frame 1 in two degrees of freedom, namely, the lateral and longitudinal directions, when erecting the steel trestle, thereby facilitating the construction of the steel trestle and effectively reducing the difficulty of erecting the Bailey frame 1. On the other hand, after the position is adjusted, it can automatically detach from the Bailey frame 1, and the position of the Bailey frame 1 is kept unchanged during the detachment process, thereby effectively ensuring the installation accuracy of the Bailey frame 1 while improving the convenience of use.

[0041] It should be noted that the specific models and specifications of the first telescopic cylinder 32f, the second telescopic cylinder 33b, the first drive motor 34e and the second drive motor 34h need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0042] The power supply and principle of the first telescopic cylinder 32f, the second telescopic cylinder 33b, the first drive motor 34e and the second drive motor 34h are clear to those skilled in the art and will not be described in detail herein.

[0043] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A high-precision control device for Bailey frame of steel trestle, characterized in that: include: A transversely movable chassis (31) for supporting the Bailey frame (1); and for moving the Bailey frame (1) along the length direction of the steel beam (2); An inclined supporting sliding structure (32) is arranged on the top of the transversely movable chassis (31) on a side close to the Bailey frame (1), and an inclined surface (32b) is provided on the side close to the Bailey frame (1). The Bailey frame (1) contacts the inclined surface (32b). The inclined supporting sliding structure (32) is used to move the Bailey frame (1) along the width direction of the steel beam (2); and to slide the Bailey frame (1) to the top of the steel beam (2); A lateral pushing structure (33) is arranged side by side with the inclined supporting sliding structure (32) on the other side of the top of the transversely movable chassis (31), and has a telescopic structure for pushing the Bailey frame (1) to slide on the inclined surface (32b) of the inclined supporting sliding structure (32); The clamping drive mechanism (34) is arranged on a side of the transverse movable chassis (31) away from the Bailey frame (1), and is connected to the steel beam (2) to fix the position of the regulating device; and drives the regulating device to move on the steel beam (2).

2. The control device according to claim 1, characterized in that: The transversely movable chassis (31) comprises a base (31a), a roller (31b) is arranged at a position where the base (31a) contacts the top of the steel beam (2), and a lateral pulley (31c) is arranged at a position where the base (31a) contacts the edge of the steel beam (2).

3. The control device according to claim 2, characterized in that: The inclined supporting sliding structure (32) comprises an inclined frame (32a) connected to a base (31a); a plurality of rollers (32d) are provided on an inclined surface (32b) of the inclined frame (32a); the direction of rotation of the rollers (32d) is aligned with the direction of rotation of the roller shaft (31b); comb tooth grooves (32c) are provided at gaps between the rollers (32d) on the inclined surface (32b); a comb tooth push plate (32e) is provided inside the comb tooth push plate; a first telescopic cylinder (32f) is connected between the comb tooth push plate (32e) away from the inclined surface (32b) and the inclined frame (32a) for driving the comb tooth push plate (32e) to extend or retract from the comb tooth groove (32c).

4. The control device according to claim 2, characterized in that: The lateral pushing structure (33) comprises a mounting seat (33a) connected to the base (31a), and at least two second telescopic cylinders (33b) are arranged on the top of the mounting seat (33a), wherein the output ends of the second telescopic cylinders (33b) face the Bailey frame (1).

5. The control device according to claim 4, characterized in that: A reinforcing rib (33c) is provided on one side of the second telescopic cylinder (33b) away from the Bailey frame (1); one end of the reinforcing rib (33c) is connected to the second telescopic cylinder (33b), and the other end is connected to the base (31a).

6. The control device according to claim 2, characterized in that: The clamping drive mechanism (34) comprises a connecting seat (34a), the connecting seat (34a) being connected to the edge of the base (31a) in the width direction, two clamping arms (34b) being hingedly connected to one side of the connecting seat (34a) close to the steel beam (2), wherein a long hole (34c) is provided on the clamping arm (34b), a roller (34d) and a first drive motor (34e) are provided at the end of the clamping arm (34b), the output shaft of the first drive motor (34e) being connected to the axis of the roller (34d) for driving the roller to rotate, and a threaded sleeve (34) is also included. f) and a slider (34g), one end of the threaded sleeve (34f) is hinged to one of the clamping arms (34b), the slider (34g) is arranged in a long hole (34c) of the other clamping arm (34b), the long hole (34c) limits the moving direction of the slider (34g), the slider (34g) slides along the length direction of the clamping arm (34b), a second drive motor (34h) is arranged on the top of the slider (34g), the output shaft of the second drive motor (34h) is provided with a screw rod, the screw rod passes through the slider (34g) and is threadedly connected to the threaded sleeve (34f).

7. The control device according to claim 6, characterized in that: The roller (34d) is made of steel and has tooth grooves on its surface.

8. The control device according to claim 6, characterized in that: Two clamping drive mechanisms (34) are provided and distributed on both sides of the base (31a).

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