Gantry type construction lifting device

Abstract

The gantry type construction lifting device comprises a portal frame and further comprises a driving assembly, a movable frame is slidably connected to the top of the back face of the portal frame, a first driving motor is arranged on the back face of the movable frame, a second driving motor is fixedly connected to the top of the movable frame, a rope winding disc is arranged on the front face of the second driving motor, and a rope is arranged in the rope winding disc. The driving assembly comprises a protection box, the protection box is fixedly connected to the front face of the movable frame, and an electric telescopic rod is fixedly connected to the bottom of the protection box. According to the lifting device, the rope can be extruded and locked by arranging the buffer pulley, a lifted object can be lifted to a designated position to be fixed when the lifting device is used, meanwhile, interference of external factors on the rope can be reduced through limiting of the buffer pulley when the lifting device is used, shaking generated when the object is lifted is avoided, and stability during lifting is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of construction equipment, in particular to a gantry type construction lifting device. Background Art

[0002] Gantry construction lifting device, commonly known as gantry lifting frame or gantry hoist, is a device widely used in building construction, bridge construction, stage construction and other fields. Gantry construction lifting device is a device with multiple functions such as suspension and lifting. It is mainly composed of steel structure and can bear a large weight. It is widely used in the construction of large-scale engineering projects such as high-rise buildings, bridges, tunnels, etc. It can quickly and safely lift construction materials, equipment and personnel from one level to another, greatly improving construction efficiency.

[0003] The Chinese patent application with patent application number CN201520146918.7 discloses a gantry lifting device. Although the application realizes a simple structure, flexible and reliable operation, small space occupation, low manufacturing cost, time-saving and labor-saving, and can be used in occasions with simultaneous lifting (or locking) requirements such as small beam lifting, various rods, and rack lifting, it is difficult to safely protect the rope during lifting when the application is in use, resulting in different stability of the rope when lifting objects of different weights. At the same time, the rope is easily affected by external factors and shakes during lifting, causing the lifted objects to shake, be unstable, and fall easily. Improvements are needed to address this problem. Summary of the invention

[0004] The object of the present invention is to provide a gantry type construction lifting device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a gantry-type construction lifting device, comprising a gantry frame and a driving assembly, wherein a moving frame is slidably connected to the top of the back side of the gantry frame, a driving motor 1 is arranged on the back side of the moving frame, a driving motor 2 is fixedly connected to the top of the moving frame, a rope winding drum is arranged on the front side of the driving motor 2, a rope is arranged in the rope winding drum, and a lifting hook is arranged on the end of the rope away from the rope winding drum.

[0006] Wherein, the driving component comprises:

[0007] A protective box is fixedly connected to the front of the mobile frame, an electric telescopic rod is fixedly connected to the bottom of the protective box, the electric telescopic rod has a telescopic end, the telescopic end of the electric telescopic rod is fixedly connected to a lifting member, the inner side of the lifting member is fixedly connected to a driving frame, a rotating block is rotatably connected inside the driving frame, a rotating cylinder is fixedly connected to the side of the rotating block away from the driving frame, and the rotating block can rotate in the middle of the driving frame.

[0008] According to the above technical solution, it also includes a buffer component, which is composed of a positioning frame, a rotating arm, a support spring, a slide plate, a connecting rod, a buffer frame, and a buffer pulley.

[0009] The positioning frame is fixedly connected to the inner wall of the protection box, the rotating arm is rotatably connected to the middle part of the positioning frame, the support spring 1 is fixedly connected to the side of the rotating arm close to the positioning frame, the slide plate is fixedly connected to the other end of the support spring 1, the connecting rod is fixedly connected to the middle part of the other side of the slide plate, the buffer frame is fixedly connected to the end of the connecting rod away from the slide plate, the buffer pulley is rotatably connected to the middle part of the buffer frame, and the support spring 1 can support the slide plate, the connecting rod, the buffer frame and the buffer pulley.

[0010] According to the above technical solution, it also includes a protection component, which is composed of a second support spring, a sliding piston disc, a rotating connector, and a buffer support frame.

[0011] The second support spring is fixedly connected to the bottom of the rotating cylinder, the sliding piston disc is fixedly connected to the top of the second support spring, the rotating connecting piece is fixedly connected to the middle of the top of the sliding piston disc, and the buffer support frame is rotatably connected to the end of the rotating connecting piece away from the sliding piston disc. The second support spring can support the sliding piston disc, the rotating connecting piece and the buffer support frame.

[0012] According to the above technical solution, the telescopic end of the electric telescopic rod passes through the bottom of the protection box and extends into the protection box to be fixedly connected to the bottom of the lifting member. When the electric telescopic rod is working, it can drive the lifting member to rise and fall.

[0013] According to the above technical solution, the end of the connecting rod away from the slide passes through the rotating arm and extends to the outside of the rotating arm to be fixedly connected to the buffer frame. When the connecting rod moves, it can drive the buffer frame and the buffer pulley to move.

[0014] According to the above technical solution, the top of the buffer support frame is fixedly connected to the bottom of the rotating arm, the second support spring and the sliding piston disc are both built into the rotating cylinder, the sliding piston disc is slidably connected to the inner wall of the rotating cylinder, and the sliding piston disc moves up and down inside the rotating cylinder.

[0015] According to the above technical solution, damping oil is arranged in the rotating cylinder, and a penetrating circular groove is opened in the sliding piston disc, so that the damping oil in the rotating cylinder can flow in the circular groove on the sliding piston disc.

[0016] According to the above technical scheme, the number of the driving frame, rotating block, rotating cylinder, positioning frame, rotating arm, support spring 1, slide plate, connecting rod, buffer frame, buffer pulley, support spring 2, sliding piston disk, rotating connecting piece and buffer support frame is six. The six driving frames, rotating blocks, rotating cylinders, positioning frames, rotating arms, support spring 1, slide plates, connecting rods, buffer frames, buffer pulleys, support spring 2, sliding piston disks, rotating connecting pieces and buffer support frames are distributed in a ring inside the protective box. By setting up six driving frames, rotating blocks, rotating cylinders, positioning frames, rotating arms, support spring 1, slide plates, connecting rods, buffer frames, buffer pulleys, support spring 2, sliding piston disks, rotating connecting pieces and buffer support frames, the outer side of the rope can be buffered in a circular manner.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0018] 1. The buffer pulley can be set to squeeze and lock the rope, so that the device can lift the lifting object to the designated position for fixing when in use. At the same time, the buffer pulley can be used to limit the interference of external factors on the rope, avoid shaking when lifting objects, and ensure stability during lifting;

[0019] 2. By setting a buffer pulley, the lowering speed of the rope can be intermittently buffered, which can make the heavy objects more stable during the lifting and lowering process, reduce the waiting time and adjustment time caused by sudden speed changes, and thus improve the efficiency of the entire operation process;

[0020] 3. By setting the buffer pulley in contact with the outside of the rope, the buffer pulley can intermittently buffer the rope, which can effectively slow down the speed of the rope falling, prevent the object from falling suddenly due to excessive speed, thereby improving the safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of a driving motor of the present invention;

[0024] Figure 3 It is a schematic diagram of the electric telescopic rod of the present invention;

[0025] Figure 4 is a schematic diagram of the interior of the protective box of the present invention;

[0026] Figure 5It is a schematic diagram of the rotating cylinder of the present invention;

[0027] Figure 6 It is a schematic diagram of the buffer pulley of the present invention;

[0028] Figure 7 yes Figure 6 Enlarged schematic diagram at point A in the middle.

[0029] In the figure: 1. gantry; 2. driving motor 1; 3. moving frame; 4. driving motor 2; 5. rope reel; 6. rope; 7. lifting hook; 8. driving assembly; 801. protection box; 802. electric telescopic rod; 803. lifting member; 804. driving frame; 805. rotating block; 806. rotating cylinder; 9. buffer assembly; 901. positioning frame; 902. rotating arm; 903. supporting spring 1; 904. sliding plate; 905. connecting rod; 906. buffer frame; 907. buffer pulley; 10. protection assembly; 101. supporting spring 2; 102. sliding piston disc; 103. rotating connecting member; 104. buffer support frame. DETAILED DESCRIPTION

[0030] 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.

[0031] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] For example, see Figure 1-5 The present invention provides a technical solution: a gantry type construction lifting device, including a gantry frame 1, and also includes a driving assembly 8, a moving frame 3 is slidably connected to the top of the back of the gantry frame 1, a driving motor 1 2 is arranged on the back of the moving frame 3, a driving motor 2 4 is fixedly connected to the top of the moving frame 3, a rope winding drum 5 is arranged on the front of the driving motor 2 4, a rope 6 is arranged in the rope winding drum 5, and a lifting hook 7 is arranged at one end of the rope 6 away from the rope winding drum 5.

[0033] Wherein, the driving component 8 comprises:

[0034] A protective box 801 is fixedly connected to the front of the mobile frame 3, an electric telescopic rod 802 is fixedly connected to the bottom of the protective box 801, the electric telescopic rod 802 has a telescopic end, the telescopic end of the electric telescopic rod 802 is fixedly connected to a lifting member 803, the inner side of the lifting member 803 is fixedly connected to a driving frame 804, a rotating block 805 is rotatably connected inside the driving frame 804, a rotating cylinder 806 is fixedly connected to the rotating block 805 away from the driving frame 804, and the rotating block 805 can rotate in the middle of the driving frame 804.

[0035] The telescopic end of the electric telescopic rod 802 passes through the bottom of the protection box 801 and extends into the protection box 801 to be fixedly connected to the bottom of the lifting member 803. When the electric telescopic rod 802 is working, it can drive the lifting member 803 to move up and down.

[0036] When the object to be lifted is relatively light, the rope 6 and the lifting hook 7 are easily affected by external wind factors and cause shaking, and the electric telescopic rod 802 is controlled to work, so that the electric telescopic rod 802 pushes the lifting member 803 to rise, so that the driving frame 804 on the lifting member 803 can squeeze the rotating block 805.

[0037] For example 2, please refer to Figure 1-7 On the basis of the first embodiment, the present invention provides a technical solution: it also includes a buffer component 9, and the buffer component 9 is composed of a positioning frame 901, a rotating arm 902, a support spring 903, a slide plate 904, a connecting rod 905, a buffer frame 906, and a buffer pulley 907.

[0038] The positioning frame 901 is fixedly connected to the inner wall of the protective box 801, the rotating arm 902 is rotatably connected to the middle part of the positioning frame 901, the support spring 903 is fixedly connected to the side of the rotating arm 902 close to the positioning frame 901, the slide plate 904 is fixedly connected to the other end of the support spring 903, the connecting rod 905 is fixedly connected to the middle part of the other side of the slide plate 904, the buffer frame 906 is fixedly connected to the end of the connecting rod 905 away from the slide plate 904, the buffer pulley 907 is rotatably connected to the middle part of the buffer frame 906, and the support spring 903 can support the slide plate 904, the connecting rod 905, the buffer frame 906 and the buffer pulley 907.

[0039] It also includes a protection component 10, which is composed of a supporting spring 101, a sliding piston disc 102, a rotating connecting piece 103, and a buffer support frame 104.

[0040] The support spring 101 is fixedly connected to the bottom of the rotating cylinder 806, the sliding piston disc 102 is fixedly connected to the top of the support spring 101, the rotating connecting piece 103 is fixedly connected to the middle of the top of the sliding piston disc 102, and the buffer support frame 104 is rotatably connected to the end of the rotating connecting piece 103 away from the sliding piston disc 102. The support spring 101 can support the sliding piston disc 102, the rotating connecting piece 103 and the buffer support frame 104.

[0041] One end of the connecting rod 905 away from the slide plate 904 passes through the rotating arm 902 and extends to the outside of the rotating arm 902 to be fixedly connected to the buffer frame 906. When the connecting rod 905 moves, it can drive the buffer frame 906 and the buffer pulley 907 to move.

[0042] The top of the buffer support frame 104 is fixedly connected to the bottom of the rotating arm 902, the support spring 101 and the sliding piston disc 102 are both built into the rotating cylinder 806, the sliding piston disc 102 is slidingly connected to the inner wall of the rotating cylinder 806, and the sliding piston disc 102 moves up and down inside the rotating cylinder 806.

[0043] Damping oil is arranged in the rotating cylinder 806 , and a penetrating circular groove is opened in the sliding piston disc 102 , so that the damping oil in the rotating cylinder 806 can flow in the circular groove on the sliding piston disc 102 .

[0044] The number of the driving frame 804, the rotating block 805, the rotating cylinder 806, the positioning frame 901, the rotating arm 902, the supporting spring 1 903, the slide plate 904, the connecting rod 905, the buffer frame 906, the buffer pulley 907, the supporting spring 2 101, the sliding piston disc 102, the rotating connecting piece 103 and the buffer supporting frame 104 are all six. Wheel 907, support spring 2 101, sliding piston disc 102, rotating connecting piece 103 and buffer support frame 104 are distributed in a ring inside the protective box 801. By setting six driving frames 804, rotating blocks 805, rotating cylinders 806, positioning frames 901, rotating arms 902, support spring 1 903, slide plates 904, connecting rods 905, buffer frames 906, buffer pulleys 907, support spring 2 101, sliding piston disc 102, rotating connecting piece 103 and buffer support frames 104, the outer side of the rope 6 can be buffered in a circular manner.

[0045] When the object to be lifted is light, the rope 6 and the lifting hook 7 are easily affected by external wind factors and cause shaking. The electric telescopic rod 802 is controlled to work, so that the electric telescopic rod 802 pushes the lifting member 803 to rise, and the driving frame 804 on the lifting member 803 squeezes the rotating block 805, so that the rotating cylinder 806 on the rotating block 805 pushes the buffer support frame 104, and the buffer support frame 104 pushes the rotating arm 902 to rotate upward in the positioning frame 901. At the same time, the buffer pulley 907 on the rotating arm 902 contacts the outer side of the rope 6 and compresses the supporting spring 1 903. At the same time, the supporting spring 1 903 is difficult to continue to compress. At this time, the six buffer pulleys 907 contact the outer side of the rope 6 at the same time and squeeze the outer side of the rope 6, so that the rope 6 can be clamped to prevent the rope 6 from falling, and the rope 6 can be locked when in use. When the rope 6 and the lifting hook 7 shake with a large amplitude, the rope 6 can be stabilized to prevent the large shaking from causing the object to fall.

[0046] When the object to be lifted is heavy, the electric telescopic rod 802 is controlled to work, so that the electric telescopic rod 802 pulls the lifting member 803 down. At this time, the rotating arm 902 rotates downward in the positioning frame 901, which can reduce the squeezing force between the buffer pulley 907 and the rope 6. At this time, the buffer pulley 907 contacts the outside of the rope 6. When the rope 6 is lowered, the rope 6 squeezes the buffer pulley 907. At the same time, the supporting spring 903 on the buffer pulley 907 contracts and squeezes the rotating arm 902 synchronously. At this time, the rotating arm 902 rotates downward in the positioning frame 901, and at the same time, the buffer support frame 104 squeezes the rotating connection member 103, so that the sliding piston on the rotating connection member 103 The disk 102 moves downward in the rotating cylinder 806. At this time, the sliding piston disk 102 squeezes the damping oil in the rotating cylinder 806, allowing the damping oil to flow in the circular hole in the sliding piston disk 102 and increase the resistance of the sliding piston disk 102 in the rotating cylinder 806. At the same time, the impact force on the rotating arm 902 when it moves downward is buffered. When the buffer pulley 907 is separated from the outside of the rope 6, the supporting spring 1 903 elastically recovers, and the supporting spring 2 101 elastically recovers, so that the rotating arm 902 rises in the positioning frame 901, and the buffer pulley 907 can contact the outside of the rope 6 again, thereby realizing the function of intermittently buffering the rope 6, so that the rope 6 of the device is more stable when lowered.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A gantry type construction lifting device, comprising a gantry frame (1), characterized in that: It also includes a driving assembly (8), wherein a moving frame (3) is slidably connected to the top of the back of the gantry (1), a driving motor 1 (2) is arranged on the back of the moving frame (3), a driving motor 2 (4) is fixedly connected to the top of the moving frame (3), a rope reel (5) is arranged on the front of the driving motor 2 (4), a rope (6) is arranged in the rope reel (5), and a lifting hook (7) is arranged at one end of the rope (6) away from the rope reel (5); Wherein, the driving component (8) comprises: A protection box (801) is fixedly connected to the front of the mobile frame (3); an electric telescopic rod (802) is fixedly connected to the bottom of the protection box (801); the electric telescopic rod (802) has a telescopic end; the telescopic end of the electric telescopic rod (802) is fixedly connected to a lifting member (803); the inner side of the lifting member (803) is fixedly connected to a driving frame (804); a rotating block (805) is rotatably connected inside the driving frame (804); a rotating cylinder (806) is fixedly connected to the side of the rotating block (805) away from the driving frame (804); and the rotating block (805) can rotate in the middle of the driving frame (804).

2. A gantry type construction lifting device according to claim 1, characterized in that: It also includes a buffer assembly (9), which is composed of a positioning frame (901), a rotating arm (902), a supporting spring (903), a slide plate (904), a connecting rod (905), a buffer frame (906), and a buffer pulley (907); The positioning frame (901) is fixedly connected to the inner wall of the protection box (801), the rotating arm (902) is rotatably connected to the middle part of the positioning frame (901), the support spring (903) is fixedly connected to the side of the rotating arm (902) close to the positioning frame (901), the slide plate (904) is fixedly connected to the other end of the support spring (903), the connecting rod (905) is fixedly connected to the middle part of the other side of the slide plate (904), the buffer frame (906) is fixedly connected to the end of the connecting rod (905) away from the slide plate (904), the buffer pulley (907) is rotatably connected to the middle part of the buffer frame (906), and the support spring (903) can support the slide plate (904), the connecting rod (905), the buffer frame (906) and the buffer pulley (907).

3. A gantry type construction lifting device according to claim 2, characterized in that: It also includes a protection component (10), wherein the protection component (10) is composed of a second support spring (101), a sliding piston disc (102), a rotating connecting member (103), and a buffer support frame (104); The second support spring (101) is fixedly connected to the bottom of the rotating cylinder (806), the sliding piston disc (102) is fixedly connected to the top of the second support spring (101), the rotating connecting member (103) is fixedly connected to the middle of the top of the sliding piston disc (102), and the buffer support frame (104) is rotatably connected to the end of the rotating connecting member (103) away from the sliding piston disc (102). The second support spring (101) can support the sliding piston disc (102), the rotating connecting member (103) and the buffer support frame (104).

4. A gantry type construction lifting device according to claim 3, characterized in that: The telescopic end of the electric telescopic rod (802) passes through the bottom of the protection box (801) and extends into the protection box (801) to be fixedly connected to the bottom of the lifting member (803). When the electric telescopic rod (802) is in operation, it can drive the lifting member (803) to move up and down.

5. A gantry type construction lifting device according to claim 4, characterized in that: The end of the connecting rod (905) away from the slide plate (904) passes through the rotating arm (902) and extends to the outside of the rotating arm (902) to be fixedly connected to the buffer frame (906). When the connecting rod (905) moves, it can drive the buffer frame (906) and the buffer pulley (907) to move.

6. A gantry type construction lifting device according to claim 5, characterized in that: The top of the buffer support frame (104) is fixedly connected to the bottom of the rotating arm (902), the second support spring (101) and the sliding piston disc (102) are both built into the rotating cylinder (806), the sliding piston disc (102) is slidably connected to the inner wall of the rotating cylinder (806), and the sliding piston disc (102) moves up and down inside the rotating cylinder (806).

7. A gantry type construction lifting device according to claim 6, characterized in that: Damping oil is arranged in the rotating cylinder (806), and a penetrating circular groove is provided in the sliding piston disc (102). The damping oil in the rotating cylinder (806) can flow in the circular groove on the sliding piston disc (102).

8. A gantry type construction lifting device according to claim 7, characterized in that: The number of the driving frame (804), the rotating block (805), the rotating cylinder (806), the positioning frame (901), the rotating arm (902), the supporting spring 1 (903), the sliding plate (904), the connecting rod (905), the buffer frame (906), the buffer pulley (907), the supporting spring 2 (101), the sliding piston plate (102), the rotating connecting piece (103) and the buffer supporting frame (104) is six. The six driving frames (804), the rotating block (805), the rotating cylinder (806), the positioning frame (901), the rotating arm (902), the supporting spring 1 (903), the sliding plate (904), the connecting rod (905), the buffer frame (906) , a buffer pulley (907), a second support spring (101), a sliding piston disc (102), a rotating connecting piece (103) and a buffer supporting frame (104) are annularly distributed inside the protection box (801). By arranging six driving frames (804), a rotating block (805), a rotating cylinder (806), a positioning frame (901), a rotating arm (902), a first support spring (903), a sliding plate (904), a connecting rod (905), a buffer frame (906), a buffer pulley (907), a second support spring (101), a sliding piston disc (102), a rotating connecting piece (103) and a buffer supporting frame (104), the outer side of the rope (6) can be buffered in a circular manner.

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