Steel trestle hoisting device

Abstract

The utility model is suitable for the technical field of engineering construction, and provides a steel trestle hoisting device which comprises a crane, and a lifting assembly frame is arranged on a lifting arm of the crane; the hanging bracket is fixedly mounted on the assembly frame; the distance between the two clamping arms is adjustable, and the two clamping arms are symmetrically arranged on the lifting frame and used for clamping and fixing a steel trestle frame to be lifted; and the two connecting plates are fixedly mounted at the tops of the two clamping arms respectively. According to the steel trestle hoisting device provided by the scheme, through cooperative work of the clamping arms with the adjustable spacing and the driving mechanism composed of the two-way screw, the motor and the like, automatic clamping and accurate spacing adjustment of a steel trestle assembly are achieved, a traditional manual one-by-one hooking mode is replaced, the labor intensity is greatly reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering construction, in particular to a steel trestle hoisting device. Background Art

[0002] With the rapid development of my country's infrastructure construction, the demand for the construction of steel trestles, as important engineering structures connecting the two sides of waters and crossing rivers or straits, is growing. Steel trestles have been widely used in transportation, water conservancy, energy and other fields due to their advantages such as high structural strength, fast construction speed and convenient maintenance.

[0003] At present, the existing method of lifting steel trestle components mainly relies on traditional crane-driven hooks for operation. Although this method meets the basic lifting needs to a certain extent, in actual operation, it requires manual operation of multiple hooks to hook the steel trestle components one by one, which is labor-intensive and inefficient. Utility Model Content

[0004] The utility model provides a steel trestle hoisting device, aiming to solve the problem that the current hoisting operation is relatively troublesome and laborious.

[0005] The utility model is implemented as follows: a steel trestle hoisting device comprises: a crane, a lifting arm of the crane is provided with a liftable assembly frame; a hanger, the hanger is fixedly mounted on the assembly frame; two clamping arms with adjustable spacing, the two clamping arms are symmetrically arranged on the hanger and are used to clamp the steel trestle frame to be hoisted; two connecting plates, the two connecting plates are respectively fixedly mounted on the tops of the two clamping arms; two assembly plates, the two assembly plates are respectively fixedly mounted on the tops of the two connecting plates; and a driving mechanism, the driving mechanism is arranged on the hanger and is used to drive the two assembly plates to move and adjust the spacing between the two clamping arms.

[0006] Preferably, the driving mechanism includes: a bidirectional screw rotatably mounted on the hanger, the bidirectional screw thread passing through the assembly plate; a guide rod fixed on the hanger, the guide rod passing through the assembly plate; a motor fixed on the hanger, the output shaft of the motor fixedly connected to the bidirectional screw via a coupling.

[0007] Preferably, the crane is provided with an electric winch, the electric winch is provided with a winch rope, and one end of the winch rope is fixedly connected to the assembly frame.

[0008] Preferably, a plurality of guide rings are fixed on the boom, and the inner diameter of the guide rings is larger than the diameter of the twisted rope, and is used for guiding the twisted rope.

[0009] Preferably, the clamp arm is L-shaped, a rubber pad is provided on the inner wall of the clamp arm, and a surface of the rubber pad is provided with a plurality of bumps for anti-slip.

[0010] Preferably, a threaded hole is provided on the assembly plate, and the threaded hole is adapted to the bidirectional screw rod; a through hole is provided on the assembly plate, and the through hole is adapted to the guide rod.

[0011] Preferably, a limiting sleeve is fixedly mounted on the bidirectional screw, and the limiting sleeve is larger than the inner diameter of the threaded hole and is used to limit the clamping arm.

[0012] Compared with the related art, the steel trestle hoisting device provided by the utility model has the following beneficial effects:

[0013] The automatic clamping and precise spacing adjustment of the steel trestle components are achieved through the coordinated operation of the clamping arm with adjustable spacing, the bidirectional screw rod, the motor and other components, replacing the traditional manual hooking method, greatly reducing labor intensity and improving work efficiency; the stable clamping arm structure ensures the stability of the steel trestle components during the lifting process, while the guide rod ensures the linear motion and stability of the assembly plate during movement. The two together enhance the safety of the operation and reduce the risks caused by shaking or inaccurate adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A side structural diagram of a steel trestle hoisting device provided by the utility model;

[0015] Figure 2 This is a schematic diagram of the top structure of the utility model;

[0016] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A shown in FIG;

[0017] Figure 4 This is a schematic diagram of the main sectional structure of the hanger in the utility model.

[0018] Figure numerals: 1. Crane; 2. Boom; 3. Assembly frame; 4. Hanger; 5. Clamp arm; 6. Bidirectional screw; 7. Assembly plate; 8. Connecting plate; 9. Motor; 10. Guide rod; 11. Coupling; 12. Electric winch; 13. Hitch rope; 14. Guide ring; 15. Rubber pad; 16. Steel trestle frame; 17. Limit sleeve. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0020] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] The present invention provides a steel trestle hoisting device. Figure 1-4 As shown, the steel trestle hoisting device includes: a crane 1, a lifting arm 2 of the crane 1 is provided with a liftable assembly frame 3; a hanger 4, the hanger 4 is fixedly mounted on the assembly frame 3; two clamping arms 5 with adjustable spacing, the two clamping arms 5 are symmetrically arranged on the hanger 4, and are used to clamp the steel trestle frame 16 to be hoisted; two connecting plates 8, the two connecting plates 8 are respectively fixedly mounted on the top of the two clamping arms 5; two assembly plates 7, the two assembly plates are respectively fixedly mounted on the top of the two connecting plates 8; a driving mechanism, the driving mechanism is arranged on the hanger 4, and is used to drive the two assembly plates to move and adjust the spacing between the two clamping arms 5.

[0022] In this embodiment, by designing a combination of a clamping arm 5 with adjustable spacing and a driving mechanism, the automatic clamping and spacing adjustment of the steel trestle assembly is achieved, replacing the tedious process of manually hooking the steel trestle assembly one by one, significantly reducing the labor intensity of the operator; since the clamping arm 5 can automatically adjust the spacing to adapt to steel trestle assemblies of different sizes, and the adjustment process is automatically controlled by the driving mechanism, the lifting operation is faster and more efficient, significantly improving the overall work efficiency; the stable clamping arm 5 structure ensures the stability of the steel trestle assembly during the lifting process, thereby enhancing the safety of the operation and simplifying the operation process compared with the traditional lifting method. The traditional lifting method requires complex operating steps and the coordination of multiple hooks, while the device makes the lifting operation simpler and easier through the coordinated work of the clamping arm 5 and the driving mechanism; in summary, the steel trestle lifting device provided by this technical solution has shown significant beneficial effects in reducing labor intensity, improving lifting efficiency, enhancing safety, strong adaptability and simplifying the operation process, providing a more efficient, safe and simple solution for the lifting operation of the steel trestle.

[0023] In a further preferred embodiment of the present invention, the driving mechanism includes: a bidirectional screw 6 rotatably mounted on the hanger 4, the bidirectional screw 6 threadedly passing through the assembly plate 7; a guide rod 10 fixed on the hanger 4, the guide rod 10 passing through the assembly plate 7; a motor 9 fixed on the hanger 4, the output shaft of the motor 9 being fixedly connected to the bidirectional screw 6 via a coupling 11.

[0024] In this embodiment, the bidirectional screw 6 is rotatably mounted on the hanger 4 and penetrates the assembly plate 7 via a thread. This design allows the bidirectional screw 6 to precisely push or pull the assembly plate 7 as it rotates, thereby adjusting the spacing between the two clamping arms 5 and achieving precise clamping of steel trestle assemblies of different sizes. The guide rod 10 is fixed to the hanger 4 and penetrates the assembly plate 7, ensuring the linear motion and stability of the assembly plate 7 during movement, avoiding inaccurate adjustment of the spacing between the clamping arms 5 due to shaking, and enhancing the stability of the clamping process. The motor 9 is fixed to the hanger 4, and its output shaft is fixedly connected to the bidirectional screw 6 via a coupling 11, enabling precise rotation of the bidirectional screw 6 driven by the motor 9. This design makes the process of adjusting the spacing between the clamping arms 5 more labor-saving and convenient.

[0025] In a further preferred embodiment of the present invention, the crane 1 is provided with an electric winch 12 , the electric winch 12 is provided with a twisting rope 13 , and one end of the twisting rope 13 is fixedly connected to the assembly frame 3 .

[0026] In this embodiment, the combination of the electric winch 12 and the winch rope 13 enables the operator to precisely control the retraction and extension of the winch rope 13 through the electric winch 12 , thereby controlling the lifting and lowering of the assembly frame 3 .

[0027] In a further preferred embodiment of the present invention, a plurality of guide rings 14 are fixed on the boom 2 . The inner diameter of the guide rings 14 is larger than the diameter of the twisted rope 13 and is used to guide the twisted rope 13 .

[0028] In this embodiment, in a further preferred embodiment of the present invention, the provision of the guide ring 14 ensures the smooth sliding of the strand 13 on the boom 2, avoiding the strand 13 from getting stuck during movement, making the strand 13 run smoother and enhancing the stability of the lifting process.

[0029] In a further preferred embodiment of the present invention, the clamping arm 5 is L-shaped, and a rubber pad 15 is provided on the inner wall of the clamping arm 5 . The surface of the rubber pad 15 is provided with a plurality of bumps for anti-slip.

[0030] In this embodiment, the L-shaped design of the clamping arm 5, combined with the rubber pad 15 on the inner wall, can provide a more stable clamping force, ensure the stability of the steel trestle frame 16 during the lifting process, and reduce the risk of sliding; the several bumps arranged on the surface of the rubber pad 15 increase the friction coefficient.

[0031] In a further preferred embodiment of the present invention, a threaded hole is provided on the assembly plate 7 , and the threaded hole is adapted to the bidirectional screw 6 . A through hole is provided on the assembly plate 7 , and the through hole is adapted to the guide rod 10 .

[0032] In this embodiment, the threaded holes on the assembly plate 7 are precisely matched with the bidirectional screw 6, ensuring that when the motor 9 drives the bidirectional screw 6 to rotate, the rotational motion can be accurately converted into the linear motion of the assembly plate 7, thereby accurately adjusting the distance between the two clamping arms 5; the through holes on the assembly plate 7 are adapted to the guide rod 10, ensuring the stability and straightness of the assembly plate 7 when it moves in a straight line along the guide rod 10, avoiding the spacing adjustment error caused by shaking or offset during the driving process of the motor 9, and ensuring the accuracy and smoothness of the clamping process.

[0033] In a further preferred embodiment of the present invention, a limiting sleeve 17 is fixedly mounted on the bidirectional screw 6 . The limiting sleeve 17 is larger than the inner diameter of the threaded hole and is used to limit the clamping arm 5 .

[0034] In this embodiment, the limit sleeve 17 is fixed on the bidirectional screw 6. When the assembly plate 7 moves along the bidirectional screw 6 to the limit sleeve 17, the diameter of the limit sleeve 17 is larger than the inner diameter of the threaded hole on the assembly plate 7, thereby preventing the assembly plate 7 from continuing to move, effectively preventing the clamping arm 5 from causing structural damage due to excessive movement.

[0035] Compared with related technologies, the automatic clamping and precise adjustment of the spacing of the steel trestle components are achieved through the coordinated work of the driving mechanism composed of the adjustable-spacing clamping arm 5, the bidirectional screw 6, the motor 9, etc., replacing the traditional manual hooking method one by one, greatly reducing labor intensity and improving work efficiency; the stable clamping arm 5 structure ensures the stability of the steel trestle components during the lifting process, and the guide rod 10 ensures the linear motion and stability of the assembly plate 7 during movement. The two together enhance the safety of the operation and reduce the risks caused by shaking or inaccurate adjustment.

[0036] It is worth noting that the circuits, electronic components and modules involved in the present invention are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to software and methods.

[0037] In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope to be protected by the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making any creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also fall within the scope to be protected by the present invention.

Claims

1. A steel trestle hoisting device, characterized in that: include: A crane, wherein a lifting frame is provided on the boom of the crane; a hanger, the hanger being fixedly mounted on the assembly frame; Two clamping arms with adjustable spacing, the two clamping arms being symmetrically arranged on the hanger for clamping the steel trestle frame to be hoisted; Two connecting plates, the two connecting plates are respectively fixedly mounted on the tops of the two clamping arms; Two assembly plates, the two assembly plates are fixedly mounted on the tops of the two connecting plates respectively; A driving mechanism is provided on the hanger and is used for driving the two assembly plates to move and adjust the distance between the two clamping arms.

2. The steel trestle hoisting device according to claim 1, characterized in that: The driving mechanism comprises: Rotating a bidirectional screw mounted on the hanger, wherein the bidirectional screw thread passes through the assembly plate; A guide rod fixed to the hanger, the guide rod passing through the assembly plate; A motor is fixed on the hanger, and the output shaft of the motor is fixedly connected to the bidirectional screw through a coupling.

3. The steel trestle hoisting device according to claim 1, characterized in that: The crane is provided with an electric winch, the electric winch is provided with a twisting rope, and one end of the twisting rope is fixedly connected to the assembly frame.

4. The steel trestle hoisting device according to claim 3, characterized in that: A plurality of guide rings are fixed on the boom, and the inner diameter of the guide rings is larger than the diameter of the twisted rope and is used for guiding the twisted rope.

5. The steel trestle hoisting device according to claim 1, characterized in that: The clamping arm is L-shaped, and a rubber pad is provided on the inner wall of the clamping arm. The surface of the rubber pad is provided with a plurality of protrusions for anti-slip.

6. The steel trestle hoisting device according to claim 2, characterized in that: A threaded hole is provided on the assembly plate, and the threaded hole is adapted to the bidirectional screw rod. A through hole is provided on the assembly plate, and the through hole is adapted to the guide rod.

7. The steel trestle hoisting device according to claim 6, characterized in that: A limiting sleeve is fixedly mounted on the bidirectional screw rod. The limiting sleeve is larger than the inner diameter of the threaded hole and is used for limiting the clamping arm.

Images