阅读说明：本技术 一种桥式起重机用可升降横梁及操作方法 (Liftable cross beam for bridge crane and operation method ) 是由 黄斌润 黄润霞 于 2020-12-28 设计创作，主要内容包括：本发明公开了一种桥式起重机用可升降横梁及操作方法,包括两个底板,两个所述底板顶部外壁上均设有支撑机构,所述支撑机构包括两个支撑板,两个所述支撑板分别焊接于底板顶部两端外壁上,所述底板上方设有横板,且横板两端分别焊接于两个支撑板顶部外壁上,两个所述横板顶部外壁上均设有升降机构,所述升降机构包括支撑框,所述支撑框底部焊接于横板顶部外壁上,支撑框内滑动安装有滑板,所述滑板顶部外壁上焊接有支撑柱,所述支撑框顶端内壁上焊接有限位框。本发明提高了稳定性,提高了装置的整体的支撑强度,能够调节导轨的高度,能够适用于不同高度起重场合,提高了灵活性,能够对固定块和导轨进行支撑,防止导轨倾斜,提高了安全性。(The invention discloses a liftable crossbeam for a bridge crane and an operation method of the liftable crossbeam, and the liftable crossbeam comprises two bottom plates, wherein supporting mechanisms are arranged on the outer walls of the tops of the two bottom plates respectively, each supporting mechanism comprises two supporting plates, the two supporting plates are welded on the outer walls of the two ends of the top of the bottom plate respectively, a transverse plate is arranged above the bottom plate, the two ends of the transverse plate are welded on the outer walls of the tops of the two supporting plates respectively, lifting mechanisms are arranged on the outer walls of the tops of the two transverse plates respectively, each lifting mechanism comprises a supporting frame, the bottom of each supporting frame is welded on the outer wall of the top of the corresponding transverse plate, a sliding plate is slidably arranged in each supporting frame. The invention improves the stability, improves the integral supporting strength of the device, can adjust the height of the guide rail, is suitable for hoisting occasions with different heights, improves the flexibility, can support the fixed block and the guide rail, prevents the guide rail from inclining and improves the safety.)

1. A lifting beam for a bridge crane comprises two bottom plates (1) and is characterized in that two supporting mechanisms are arranged on the outer wall of the top of each bottom plate (1) respectively, each supporting mechanism comprises two supporting plates (2), the two supporting plates (2) are welded on the outer walls of the two ends of the top of each bottom plate (1) respectively, a transverse plate (3) is arranged above each bottom plate (1), the two ends of each transverse plate (3) are welded on the outer walls of the tops of the two supporting plates (2) respectively, each lifting mechanism comprises a supporting frame (5), the bottom of each supporting frame (5) is welded on the outer wall of the top of each transverse plate (3), a sliding plate (6) is arranged in each supporting frame (5) in a sliding mode, supporting columns (7) are welded on the outer wall of the top of each sliding plate (6), and limiting frames (8) are welded on the inner walls of the tops of the, the guide rail (9) is arranged above the transverse plate (3), the two ends of the bottom of the guide rail (9) are respectively welded on the outer walls of the top ends of the two support columns (7), the hydraulic cylinders (10) are connected to the outer walls of the two sides of the support frame (5) at the top of the two transverse plates (3) through bolts, fixed blocks (11) are welded on the outer walls of the top ends of piston rods of the four hydraulic cylinders (10), the four fixed blocks (11) are respectively welded on the outer walls of the two sides of the guide rail (9), the two outer walls of one side of the support frame (5) are respectively provided with a fixing mechanism, the fixing mechanism comprises a support rod (12) and a support piece (13), one end of the support rod (12) is welded on the outer wall of one side of the support frame (5), the support piece (13) is slidably mounted, the welding has dead lever (16) on the top outer wall of mounting panel (15) one side, the welding has installation piece (17) on support piece (13) top one end outer wall, and installation piece (17) slidable mounting on dead lever (16) outer wall, there is servo motor (19) through bolted connection on the outer wall of diaphragm (3) bottom center department, and there is screw rod (20) servo motor (19) output shaft one end through the coupling joint.

2. The liftable crossbeam of claim 1, wherein triangular support blocks (4) are welded to the outer walls of two sides of two support plates (2), and the bottoms of the four support blocks (4) are welded to the outer wall of the top of the bottom plate (1).

3. A liftable beam for a bridge crane according to claim 1, wherein the size of the inner diameter of the limiting frame (8) is matched with the size of the outer diameter of the supporting column (7), and the supporting column (7) is slidably mounted in the limiting frame (8).

4. The liftable cross beam for a bridge crane according to claim 1, wherein the support member (13) comprises a fixing plate and support plates welded to the outer walls of both sides of one side of the fixing plate, and the outer walls of the top ends of one side of the two support plates are provided with stepped channels, and one end of the bottom of the support member (13) is connected to the outer wall of the top of the mounting plate (15).

5. The liftable beam for a bridge crane according to claim 1, wherein the outer wall of one end of the support rod (12) is welded with a limiting plate (14), and the outer wall of one end of the fixing rod (16) is welded with a limiting block (18).

6. The liftable beam for a bridge crane according to claim 1, wherein a through hole is formed in an outer wall of one side of the mounting plate (15), the screw rod (20) is connected in the through hole through a bearing, a threaded opening is formed in an outer wall of one side of the mounting block (17), and the screw rod (20) is screwed in the threaded opening.

7. The liftable beam for a bridge crane according to claim 1, wherein the four hydraulic oil cylinders (10) and the two servo motors (19) are connected with switches through wires, and the switches are connected with power lines.

8. The operating method of the liftable beam for the bridge crane is characterized in that a hydraulic oil cylinder is started, a piston rod of the hydraulic oil cylinder rises to drive a fixed block to rise and further drive a guide rail to rise, two servo motors are started, output shafts of the servo motors rotate to drive screw rods to rotate and further drive an installation block and a support piece to move, when the top end of the support piece moves to the position below the fixed block, the piston rod of the hydraulic oil cylinder descends by a certain height, so that the bottom of the fixed block is lapped at the top of the support piece, and further the fixed block and the.

Technical Field

The invention relates to the technical field of bridge cranes, in particular to a liftable crossbeam for a bridge crane and an operation method.

Background

The bridge crane is a hoisting device which is transversely erected above workshops, warehouses and stock yards for hoisting materials, and the two ends of the bridge crane are located on high cement columns or metal supports and are shaped like a bridge. The bridge frame of the bridge crane runs longitudinally along the rails laid on the elevated frames at two sides, so that the space below the bridge frame can be fully utilized to hoist materials without being hindered by ground equipment. The lifting machine has the widest application range and the largest quantity.

Through the retrieval, chinese patent application No. 201920413172.X, patent with publication No. CN210048392U discloses a liftable crossbeam for bridge crane, the above-mentioned device both can realize the parallel sideslip of crossbeam, but can combine elevating system to realize the liftable regulation of crossbeam again, adapt to different goods jack-up hoists, the practicality has been improved greatly, the effectual lift that realizes the crossbeam, be convenient for bridge crane's operation, the effectual jack-up demand that realizes multiple goods, however, above-mentioned device has the not high shortcoming of stability in the use, the device is whole to empty easily, and simultaneously, the crossbeam of above-mentioned device is when going up and down, do not set up fixed establishment, lead to the crossbeam to rise the back, the holistic weight of crossbeam is acted on two promotion bracing pieces, stability is not high, lead to the crossbeam slope even can the bending promotion bracing piece easily.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a liftable crossbeam for a bridge crane and an operation method.

In order to achieve the purpose, the invention adopts the following technical scheme:

a lifting cross beam for a bridge crane and an operation method thereof comprise two bottom plates, wherein supporting mechanisms are arranged on the outer walls of the tops of the two bottom plates and comprise two supporting plates, the two supporting plates are welded on the outer walls of the two ends of the top of the bottom plate respectively, a transverse plate is arranged above the bottom plates, the two ends of the transverse plate are welded on the outer walls of the tops of the two supporting plates respectively, a lifting mechanism is arranged on the outer wall of the top of the two transverse plates and comprises a supporting frame, the bottom of the supporting frame is welded on the outer wall of the top of the transverse plate, a sliding plate is slidably mounted in the supporting frame, supporting columns are welded on the outer wall of the top of the sliding plate, a limiting frame is welded on the inner wall of the top of the supporting frame, a guide rail is arranged above the transverse plate, the two ends of the bottom of, and all welding has a fixed block, four on four hydraulic cylinder piston rod top outer walls the fixed block welds respectively on guide rail both sides outer wall, two all be equipped with fixed establishment on the outer wall of carriage one side, fixed establishment includes bracing piece and support piece, bracing piece one end welds on carriage one side outer wall, support piece slidable mounting is on the bracing piece outer wall, the welding has the mounting panel on the outer wall of diaphragm one side, the welding has the dead lever on the top outer wall of mounting panel one side, the welding has the installation piece on the outer wall of support piece top one end, and installation piece slidable mounting is on the dead lever outer wall, there is servo motor through bolted connection on the outer wall of diaphragm bottom center department, and there is the screw rod servo motor output shaft one end.

Preferably, the outer walls of two sides of the two supporting plates are welded with triangular supporting blocks, and the bottoms of the four supporting blocks are welded on the outer wall of the top of the bottom plate.

Preferably, the inner diameter of the limiting frame is matched with the outer diameter of the supporting column, and the supporting column is slidably mounted in the limiting frame.

Preferably, the supporting member comprises a fixing plate and supporting plates welded to the outer walls of two sides of one side of the fixing plate, stepped channels are formed in the outer walls of the top ends of one sides of the two supporting plates, and one end of the bottom of the supporting member is lapped on the outer wall of the top of the mounting plate.

Preferably, the outer wall of one end of the support rod is welded with a limiting plate, and the outer wall of one end of the fixing rod is welded with a limiting block.

Preferably, the outer wall of one side of the mounting plate is provided with a through hole, the screw rod is connected in the through hole through a bearing, the outer wall of one side of the mounting block is provided with a threaded hole, and the screw rod is in threaded connection with the threaded hole.

Preferably, the four hydraulic oil cylinders and the two servo motors are connected with switches through leads, and the switches are connected with power lines.

The invention has the beneficial effects that:

1. the two bottom plates are respectively provided with the two supporting plates, and the supporting blocks are arranged on the two sides of the supporting plates, so that the device is not easy to topple when lifting goods, the stability is improved, and meanwhile, the integral supporting strength of the device is improved;

2. the supporting piece is arranged and starts the hydraulic oil cylinder, the piston rod of the hydraulic oil cylinder rises to drive the fixing block to rise, and then the guide rail is driven to rise, so that the device can adjust the height of the guide rail, can be suitable for lifting occasions with different heights, and improves the flexibility;

3. two servo motors are started, the servo motor output shaft rotates to drive the screw rod to rotate, and then the mounting block and the support piece are driven to move, when the top end of the support piece moves to the position below the fixing block, the piston rod of the hydraulic oil cylinder descends by a certain height, the bottom of the fixing block is lapped on the top of the support piece, the fixing block and the guide rail can be supported, the guide rail is prevented from inclining, and the safety is improved.

In conclusion, the invention improves the stability, improves the integral supporting strength of the device, can adjust the height of the guide rail, is suitable for hoisting occasions with different heights, improves the flexibility, can support the fixed block and the guide rail, prevents the guide rail from inclining and improves the safety.

Drawings

Fig. 1 is a schematic perspective view of a liftable beam for a bridge crane according to the present invention;

FIG. 2 is a schematic view of a three-dimensional structure of a supporting mechanism of a liftable beam for a bridge crane according to the present invention;

FIG. 3 is a schematic cross-sectional view of a lifting mechanism of a liftable beam for a bridge crane according to the present invention;

fig. 4 is a schematic perspective view of a fixing mechanism of a liftable beam for a bridge crane according to the present invention;

fig. 5 is a schematic view of a fixing mechanism of a liftable beam for a bridge crane according to the present invention.

In the figure: the device comprises a base plate 1, a supporting plate 2, a transverse plate 3, a supporting block 4, a supporting frame 5, a sliding plate 6, a supporting column 7, a limiting frame 8, a guide rail 9, a hydraulic oil cylinder 10, a fixing block 11, a supporting rod 12, a supporting piece 13, a limiting plate 14, a mounting plate 15, a fixing rod 16, a mounting block 17, a limiting block 18, a servo motor 19 and a screw rod 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, a liftable crossbeam for a bridge crane comprises two bottom plates 1, wherein two supporting mechanisms are arranged on the outer walls of the tops of the two bottom plates 1 respectively, each supporting mechanism comprises two supporting plates 2, the two supporting plates 2 are welded on the outer walls of the two ends of the top of the bottom plate 1 respectively, a transverse plate 3 is arranged above the bottom plate 1, the two ends of the transverse plate 3 are welded on the outer walls of the tops of the two supporting plates 2 respectively, a lifting mechanism is arranged on the outer walls of the tops of the two transverse plates 3 respectively, the lifting mechanism comprises a supporting frame 5, the bottom of the supporting frame 5 is welded on the outer wall of the top of the transverse plate 3, a sliding plate 6 is arranged in the supporting frame 5 in a sliding manner, supporting columns 7 are welded on the outer wall of the top of the sliding plate 6, a limiting frame 8 is welded on the inner wall of, the outer walls of the tops of the two transverse plates 3, which are positioned at the two sides of the supporting frame 5, are connected with hydraulic cylinders 10 through bolts, the outer walls of the top ends of piston rods of the four hydraulic cylinders 10 are welded with fixing blocks 11, the four fixing blocks 11 are respectively welded on the outer walls of the two sides of the guide rail 9, the height of the guide rail can be adjusted, the lifting device is suitable for lifting occasions with different heights, and the flexibility is improved;

two all be equipped with fixed establishment on the outer wall of 5 one sides of carriage, fixed establishment includes bracing piece 12 and support piece 13, 12 one ends of bracing piece weld on 5 one sides of carriage outer wall, support piece 13 slidable mounting is on bracing piece 12 outer wall, the welding has mounting panel 15 on the outer wall of 3 one sides of diaphragm, the welding has dead lever 16 on the top outer wall of mounting panel 15 one side, the welding has installation piece 17 on the outer wall of 13 top one end of support piece, and installation piece 17 slidable mounting is on 16 outer walls of dead lever, there is servo motor 19 through bolted connection on the outer wall of 3 bottom centers of diaphragm department, and there is screw rod 20 servo motor 19 output shaft one end through the coupling joint, can support fixed block 11 and guide rail 9, prevents the guide rail slope, has improved the security.

According to the invention, the triangular supporting blocks 4 are welded on the outer walls of the two sides of the two supporting plates 2, and the bottoms of the four supporting blocks 4 are welded on the outer wall of the top of the bottom plate 1, so that the device is not easy to topple when lifting goods, the stability is improved, and the integral supporting strength of the device is improved;

spacing frame 8 internal diameter size and the 7 external diameter size looks adaptations of support column, and support column 7 slidable mounting is in spacing frame 8, support piece 13 includes the fixed plate and welds the backup pad on the both sides outer wall of fixed plate one side, and all opens the passageway that has the echelonment on the top outer wall of two backup pads one sides, 13 bottom one end overlap joint of support piece is on 15 top outer walls of mounting panel, the welding has limiting plate 14 on the outer wall of bracing piece 12 one end, the welding has stopper 18 on the outer wall of 16 one ends of dead lever, it has the through-hole to open on the outer wall of 15 one sides of mounting panel, and screw rod 20 passes through the bearing and connect in the through-hole, it has the screw thread mouth to open on the outer wall of 17 one side of installation piece, and screw rod 20 spiro union is in the screw thread.

The working principle is as follows: starting hydraulic cylinder 10, hydraulic cylinder 10 piston rod rises and drives fixed block 11 and rise, and then drive guide rail 9 and rise, starting two servo motor 19, servo motor 19 output shaft rotates, drives screw rod 20 and rotates, and then drives installation piece 15 and support piece 13 and remove, when support piece 13 top moved fixed block 11 below, hydraulic cylinder 10 piston rod descends a take the altitude for 11 bottom overlap joints in support piece 13 tops of fixed block, and then supports fixed block 11 and guide rail 9.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.