Large-span steel truss integral lifting device

Abstract

The utility model relates to the technical field of steel trusses, and provides a large-span steel truss integral lifting device which comprises a center end plate, a lifting screw rod is arranged in the middle of the lower end of the center end plate, a lifting sleeve is spirally connected to the outer side of the lifting screw rod, a lifting supporting plate is fixedly connected to the lower end of the lifting sleeve, and the lifting supporting plate is fixedly connected to the center end of the center end plate. The front end and the rear end of the lifting supporting plate are both slidably connected with limiting sliding rods, the outer ends of the limiting sliding rods are fixedly connected with clamping end plates, and the lower ends of the clamping end plates are fixedly connected with clamping jaws. The clamping end plate can drive the clamping jaw to move front and back, the large-span steel truss can be automatically, rapidly and stably clamped, the lifting screw can drive the lifting sleeve and the lifting supporting plate to move up and down through rotation of the first motor, and then the large-span steel truss can be rapidly and automatically lifted.

Description

Technical Field

[0001] The utility model relates to the technical field of steel trusses, in particular to an integral lifting device for a large-span steel truss. Background Art

[0002] Steel trusses refer to trusses made of steel. They are often used as the main load-bearing components in roof structures of industrial and civil buildings, crane beams, bridges and hydraulic gates. Various towers, such as mast towers, TV towers and transmission line towers, are often space steel trusses composed of three-sided, four-sided or multi-sided plane trusses. However, the existing large-span steel trusses are either installed by splitting and lifting, or by lifting and lifting with lifting equipment. However, the splitting and installation process is cumbersome, time-consuming and labor-intensive, and it is difficult for the lifting equipment to stably control the lifting, which affects the overall lifting convenience of the large-span steel trusses. Moreover, when the large-span steel trusses are lifted as a whole, it is difficult to quickly install the lifting equipment used, and it is difficult to quickly adjust and fix it according to the installation position, which affects the overall lifting convenience of steel trusses of different lengths, and it is not convenient to adjust and fix them as a whole.

[0003] Therefore, this solution specifically proposes a large-span steel truss integral lifting device to solve the above problems. Utility Model Content

[0004] In order to overcome the defects of the prior art, the purpose of the utility model is to provide a large-span steel truss integral lifting device.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is implemented as follows: a large-span steel truss integral lifting device comprises a central end plate, a lifting screw is provided at the middle position of the lower end of the central end plate, the outer side of the lifting screw is spirally connected with a lifting sleeve, the lower end of the lifting sleeve is fixedly connected with a lifting support plate, the front and rear ends of the lifting support plate are both slidably connected with a limiting slide rod, the outer end of the limiting slide rod is fixedly connected with a clamping end plate, the lower end of the clamping end plate is fixedly connected with a clamping claw, the left and right ends of the central end plate are provided with hydraulic rods, and the outer ends of the hydraulic rods are fixedly connected with end frames.

[0006] Preferably, a first motor is fixedly connected at the middle position of the inner lower end of the central end plate, the output shaft of the first motor is fixedly connected to the lifting screw, a limiting telescopic rod is fixedly connected to the outer side of the lower end of the central end plate, and the limiting telescopic rod is fixedly connected to the lifting support plate.

[0007] Preferably, the right end of the lifting support plate is fixedly connected to a second motor, the left end of the output shaft of the second motor is fixedly connected to a bidirectional screw, the bidirectional screw is rotatably connected to the lifting support plate, the outer side of the bidirectional screw is spirally connected to a transmission block, the outer side of the transmission block is rotatably connected to a transmission rod, and the transmission rod is rotatably connected to the clamping end plate.

[0008] Preferably, a hydraulic press is fixedly connected to the inside of both the left and right ends of the central end plate, and the hydraulic press is sealedly connected to the hydraulic rod.

[0009] Preferably, a reinforced telescopic rod is fixedly connected to the outer side of the outer end of the central end plate, and the reinforced telescopic rod is fixedly connected to the end frame.

[0010] Preferably, an adjusting screw is rotatably connected at the middle position inside the upper end wall of the end frame, the outer side of the adjusting screw is spirally connected to a side wall clamp, the side wall clamp and the end frame are slidably connected, and the outer end of the adjusting screw is fixedly connected to a turntable.

[0011] Preferably, there are two end frames, and the front and rear ends of the end frames are both fixedly connected with limiting rods, and the limiting rods are slidably connected to the side wall clamping plates.

[0012] The beneficial effects of the utility model are embodied in:

[0013] The utility model discloses a second motor is provided to rotate the bidirectional screw rod to rotate, thereby the transmission block can drive the transmission rod to rotate, thereby the clamping end plate can drive the clamping claw to move forward and backward, and under the limiting action of the limit sliding bar, the clamping claw can automatically, quickly and stably clamp the large-span steel truss, and through the rotation of the first motor, the lifting screw rod can drive the lifting sleeve and the lifting support plate to move up and down, and the limit telescopic rod is provided to prevent deflection and limit, thereby the large-span steel truss can be quickly and automatically lifted, and the overall lifting convenience of the steel truss is improved, and the end frame can be placed on the left and right end support walls of the steel truss through the function of the provided end frame, and the side wall clamp can be driven to move by the rotation of the turntable, so that the end frame can be fixed. At the same time, the hydraulic rod can drive the end frame to move by starting the hydraulic press, so that the end frame can be extended and installed, so that the device can be quickly installed at different installation positions, and the use of the lifting device can adjust the performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 Schematic diagram of the installation structure at A;

[0017] Figure 3 It is a cross-sectional view of the installation structure of the central end plate, the lifting screw rod and the hydraulic rod of the utility model;

[0018] Figure 4 It is a right view of the installation structure of the clamping end plate, the clamping claw and the transmission rod of the utility model;

[0019] Description of reference numerals:

[0020] 1. Center end plate; 2. Lifting screw; 3. Lifting sleeve; 4. Lifting support plate; 5. Limiting slide bar; 6. Clamping end plate; 7. Clamping claw; 8. Hydraulic rod; 9. End frame; 10. First motor; 11. Limiting telescopic rod; 12. Second motor; 13. Bidirectional screw; 14. Transmission block; 15. Transmission rod; 16. Hydraulic press; 17. Strengthening telescopic rod; 18. Adjusting screw; 19. Side wall clamp; 20. Turntable; 21. Limiting rod. DETAILED DESCRIPTION

[0021] The utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that if the utility model embodiments involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, "multiple" means more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0024] Please refer to the instruction manual Figure 1-4The utility model provides a large-span steel truss overall lifting device, including a central end plate 1, a lifting screw 2 is provided at the middle position of the lower end of the central end plate 1, a lifting sleeve 3 is spirally connected to the outer side of the lifting screw 2, and a lifting support plate 4 is fixedly connected to the lower end of the lifting sleeve 3, and the front and rear ends of the lifting support plate 4 are slidably connected to the limiting sliding rod 5, and the outer end of the limiting sliding rod 5 is fixedly connected to the clamping end plate 6, and the lower end of the clamping end plate 6 is fixedly connected to the clamping claw 7. The left and right ends of the central end plate 1 are provided with hydraulic rods 8, and the outer end of the hydraulic rod 8 is fixedly connected to the end frame 9. A first motor 10 is fixedly connected to the middle position of the lower end of the inner part of the central end plate 1, and the output shaft of the first motor 10 is fixedly connected to the lifting screw 2, and the outer side of the lower end of the central end plate 1 is fixedly connected to the limiting telescopic rod 11, and the limiting telescopic rod 11 is fixedly connected to the lifting support plate 4, and the right end of the lifting support plate 4 is fixedly connected to the second motor 12, and the left end of the output shaft of the second motor 12 is fixedly connected to the bidirectional screw 13, the bidirectional screw 13 is rotatably connected with the lifting support plate 4, the outer side of the bidirectional screw 13 is spirally connected with a transmission block 14, the outer side of the transmission block 14 is rotatably connected with a transmission rod 15, and the transmission rod 15 is rotatably connected with the clamping end plate 6. When the large-span steel truss is lifted as a whole, the large-span steel truss is placed on the ground at the lower end of the installation position, and the rotation of the second motor 12 is used to enable the bidirectional screw 13 to rotate, and then the transmission block 14 can drive the transmission rod 15 to rotate, so that the clamping end plate 6 can drive the clamping claw 7 to move forward and backward, and under the limiting action of the limiting slide bar 5, the clamping claw 7 can automatically, quickly and stably clamp the large-span steel truss, and through the rotation of the first motor 10, the lifting screw 2 can drive the lifting sleeve 3 and the lifting support plate 4 to move up and down, and the anti-deflection limit is performed through the set limiting telescopic rod 11, so that the large-span steel truss can be quickly and automatically lifted, thereby improving the overall lifting convenience of the steel truss.

[0025] In one embodiment, please refer to the attached manual. Figure 1 and Figure 3, including a central end plate 1, a lifting screw 2 is provided at the middle position of the lower end of the central end plate 1, a lifting sleeve 3 is spirally connected to the outer side of the lifting screw 2, a lifting support plate 4 is fixedly connected to the lower end of the lifting sleeve 3, the front and rear ends of the lifting support plate 4 are slidably connected to the limit slide rod 5, the outer end of the limit slide rod 5 is fixedly connected to the clamping end plate 6, the lower end of the clamping end plate 6 is fixedly connected to the clamping claw 7, the left and right ends of the central end plate 1 are provided with a hydraulic rod 8, the outer end of the hydraulic rod 8 is fixedly connected to the end frame 9, the left and right ends of the central end plate 1 are fixedly connected to the hydraulic press 16, the hydraulic press 16 and the hydraulic rod 8 are sealed, an adjusting screw 18 is rotatably connected to the middle position of the upper end wall of the end frame 9, and the outer side of the adjusting screw 18 is spirally connected to the side wall The clamping plate 19, the side wall clamping plate 19 and the end frame 9 are slidably connected, the outer end of the adjusting screw 18 is fixedly connected to the turntable 20, there are two end frames 9, and the front and rear ends of the end frames 9 are fixedly connected with the limit rod 21, and the limit rod 21 is slidably connected to the side wall clamping plate 19. The end frame 9 can be placed on the left and right end support walls of the steel truss through the function of the set end frame 9, and the adjusting screw 18 can drive the side wall clamping plate 19 to move by rotating the turntable 20, so that the end frame 9 can be fixed. At the same time, by starting the hydraulic press 16, the hydraulic rod 8 can drive the end frame 9 to move, so that the end frame 9 can be extended and installed, so as to facilitate the rapid installation of the device at different installation positions and improve the adjustable performance of the device.

[0026] In another embodiment, please continue to refer to the attached manual. Figure 1 , including a central end plate 1, a lifting screw 2 is provided at the middle position of the lower end of the central end plate 1, a lifting sleeve 3 is spirally connected to the outer side of the lifting screw 2, a lifting support plate 4 is fixedly connected to the lower end of the lifting sleeve 3, the front and rear ends of the lifting support plate 4 are slidably connected to the limiting slide rod 5, the outer end of the limiting slide rod 5 is fixedly connected to the clamping end plate 6, the lower end of the clamping end plate 6 is fixedly connected to the clamping claw 7, hydraulic rods 8 are provided at both ends of the central end plate 1, the outer end of the hydraulic rod 8 is fixedly connected to the end frame 9, the outer end of the central end plate 1 is fixedly connected to the outer side of the reinforced telescopic rod 17, the reinforced telescopic rod 17 is fixedly connected to the end frame 9, and the function of the reinforced telescopic rod 17 can not only improve the supporting stability and strength of the device, but also prevent the deflection of the central end plate 1 and the shaking of the lifted steel truss.

[0027] This device is powered by an external power supply when in use. When the large-span steel truss is lifted as a whole, the large-span steel truss is placed on the ground at the lower end of the installation position, and the rotation of the second motor 12 enables the bidirectional screw 13 to rotate, so that the transmission block 14 can drive the transmission rod 15 to rotate, so that the clamping end plate 6 can drive the clamping claw 7 to move forward and backward, and under the limiting action of the limiting slide bar 5, the clamping claw 7 can automatically, quickly and stably clamp the large-span steel truss, and the rotation of the first motor 10 enables the lifting screw 2 to drive the lifting sleeve 3 and the lifting support plate 4 to move up and down. The limit telescopic rod 11 is set to prevent deflection and limit the position, so that the large-span steel truss can be quickly and automatically lifted, improving the overall lifting convenience of the steel truss, and the end frame 9 can be placed on the left and right end support walls of the steel truss, and the adjusting screw 18 can drive the side wall clamp 19 to move by rotating the turntable 20, so that the end frame 9 can be fixed, and at the same time, the hydraulic rod 8 can drive the end frame 9 to move by starting the hydraulic press 16, so that the end frame 9 can be extended and installed, so as to quickly install the device at different installation positions, and the performance of the lifting device can be adjusted.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A large-span steel truss integral lifting device, characterized in that: The invention comprises a central end plate (1), a lifting screw (2) is provided at the middle position of the lower end of the central end plate (1), the outer side of the lifting screw (2) is spirally connected to a lifting sleeve (3), the lower end of the lifting sleeve (3) is fixedly connected to a lifting support plate (4), the front and rear ends of the lifting support plate (4) are slidably connected to a limiting slide rod (5), the outer end of the limiting slide rod (5) is fixedly connected to a clamping end plate (6), the lower end of the clamping end plate (6) is fixedly connected to a clamping claw (7), and the left and right ends of the central end plate (1) are provided with hydraulic rods (8), and the outer ends of the hydraulic rods (8) are fixedly connected to end frames (9).

2. The large-span steel truss integral lifting device according to claim 1 is characterized in that: A first motor (10) is fixedly connected at a middle position of the lower end of the central end plate (1); an output shaft of the first motor (10) is fixedly connected to the lifting screw rod (2); a limiting telescopic rod (11) is fixedly connected to the outer side of the lower end of the central end plate (1); and the limiting telescopic rod (11) is fixedly connected to the lifting support plate (4).

3. The large-span steel truss integral lifting device according to claim 1 is characterized in that: The right end of the lifting support plate (4) is fixedly connected to a second motor (12), the left end of the output shaft of the second motor (12) is fixedly connected to a bidirectional screw (13), the bidirectional screw (13) is rotationally connected to the lifting support plate (4), the outer side of the bidirectional screw (13) is spirally connected to a transmission block (14), the outer side of the transmission block (14) is rotationally connected to a transmission rod (15), and the transmission rod (15) is rotationally connected to the clamping end plate (6).

4. The large-span steel truss integral lifting device according to claim 1 is characterized in that: A hydraulic press (16) is fixedly connected to the inside of both the left and right ends of the central end plate (1), and the hydraulic press (16) is sealedly connected to the hydraulic rod (8).

5. The large-span steel truss integral lifting device according to claim 1 is characterized in that: A reinforced telescopic rod (17) is fixedly connected to the outer side of the outer end of the central end plate (1), and the reinforced telescopic rod (17) is fixedly connected to the end frame (9).

6. The large-span steel truss integral lifting device according to claim 1, characterized in that: An adjusting screw (18) is rotatably connected at a middle position inside the upper end wall of the end frame (9), a side wall clamping plate (19) is spirally connected to the outer side of the adjusting screw (18), the side wall clamping plate (19) is slidably connected to the end frame (9), and a rotating disk (20) is fixedly connected to the outer end of the adjusting screw (18).

7. The large-span steel truss integral lifting device according to claim 1 is characterized in that: There are two end frames (9), and the front and rear ends of the end frames (9) are both fixedly connected to limit rods (21), and the limit rods (21) are slidably connected to the side wall clamping plates (19).

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