Trolley traveling mechanism of double-beam bridge crane

Abstract

The utility model belongs to the technical field of hoisting equipment, and particularly relates to a trolley traveling mechanism of a double-beam bridge crane. Comprising a hoisting mechanism arranged above two cross beams, electric guide rails are fixedly mounted at the tops of the two cross beams, sliding blocks are slidably connected to the two electric guide rails, moving blocks are fixedly mounted at the tops of the two sliding blocks, a mounting box is arranged between the hoisting mechanism and the cross beams, and two cross bars are fixedly mounted at the bottom of the mounting box; the two transverse rods are provided with scale marks, the two transverse rods are connected to the two moving blocks in a penetrating mode respectively, two connecting legs are fixedly installed at the bottom of the hoisting mechanism, the bottoms of the two connecting legs extend into the installation box and are jointly and fixedly provided with a bearing plate, and the bearing plate makes contact with the inner wall of the bottom of the installation box. The hoisting mechanism mounting box can be mounted on cranes with different guide rail distances, hoisting mechanisms with different sizes can be quickly mounted in the mounting box for use, and the application range is wide.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hoisting equipment technical field especially relates to a double beam bridge -type crane trolley walking mechanism. BACKGROUND

[0002] The double beam bridge -type crane mainly comprises bridge, trolley running mechanism, double beam, trolley, trolley running mechanism and electrical equipment, and this double beam bridge -type crane has the characteristics of light weight, large load and strong wind resistance, and the trolley running mode on it is generally two kinds of walking track driving and tire driving, wherein, the walking track driving is to provide the trolley with walking mechanism by the way of electric slide rail, and the trolley can be controlled to walk to the specified position.

[0003] In the use of the double beam bridge -type crane, the slider on the running trolley needs to be adapted to the position of the electric slide rail on the beam to install the running trolley on the beam, so that the normal walking of the trolley can be realized, which leads to the fact that a double beam bridge -type crane can generally only install one type of running trolley, and when a crane with different tonnage is needed, the distance between the two sliders on the running trolley is difficult to adapt to the electric slide rail on other cranes, so that the application range of the crane is narrow.

[0004] Therefore, it is necessary to provide a new double beam bridge -type crane trolley walking mechanism to solve the above technical problems. SUMMARY

[0005] The utility model discloses a double beam bridge -type crane trolley walking mechanism to solve the problems in the prior art.

[0006] The utility model discloses a double beam bridge -type crane trolley walking mechanism to solve the problems in the prior art.

[0007] A double beam bridge -type crane trolley walking mechanism, including the hoist mechanism that sets up in two cross beams top, the top of two cross beams all is fixedly installed with electric guide rail, two electric guide rails all are slidably connected with slider, the top of two sliders all is fixedly installed with moving block, and the installation box is equipped between hoist mechanism and cross beam, the bottom of installation box is fixedly installed with two cross bars, and the scale line is equipped on cross bar, two cross bars are connected respectively on two moving blocks, and the bottom of two connecting legs is fixedly installed with the bearing plate that extends to installation box and is fixedly installed together in two connecting legs, and the bearing plate is contacted with the bottom inner wall of installation box.

[0008] Further, the top of installation box is open, and the both sides of installation box outer wall are all fixed with first hydraulic cylinder, and the other two sides of installation box outer wall are all fixed with second hydraulic cylinder, and the output end of first hydraulic cylinder, second hydraulic cylinder all penetrates installation box, and the output end of first hydraulic cylinder, second hydraulic cylinder is fixed with longitudinal push plate, transverse push plate respectively.

[0009] Furthermore, both the longitudinal and transverse push plates are in contact with the bottom inner wall of the mounting box, and movable ball bearings are embedded on the side of the longitudinal push plates that are close to each other.

[0010] Furthermore, a horizontal platform is fixedly installed on the top of the transverse push plate, the horizontal platform extends into the mounting box, and a third hydraulic cylinder is fixedly installed at the bottom of one end of the horizontal platform extending into the mounting box. A pressure plate is fixedly installed at the output end of the third hydraulic cylinder, and the pressure plate is located above the bearing plate.

[0011] Furthermore, shuttle openings are provided at the bottom of the mounting box and in the center of the support plate, allowing the lifting rope of the lifting mechanism to pass through them. The size of the shuttle opening on the mounting box is larger than the size of the shuttle opening on the support plate.

[0012] Furthermore, connecting plates are welded to both ends of the crossbars, and the two crossbars are symmetrically welded to both sides of the shuttle opening on the mounting box through the connecting plates.

[0013] Furthermore, a top screw is threaded through the side of the movable block, with one end of the top screw abutting against the crossbar.

[0014] This utility model has the following beneficial effects:

[0015] This utility model provides a feature where a horizontally movable block allows for adaptive adjustment of the distance between two sliders. This ensures the sliders are positioned to accommodate the different positions of two electric guide rails on various cranes. Once mounted on the electric guide rails, the crane can move freely, making it widely applicable. Furthermore, the detachable mounting box and lifting mechanism allow for the quick installation of lifting mechanisms of varying sizes within the mounting box using longitudinal push plates, transverse push plates, and pressure plates, further expanding its applicability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the assembly structure of the mounting box and lifting mechanism of this utility model.

[0018] Figure 3 This is a schematic diagram of the connection structure between the slider and the moving block in this practical application.

[0019] Figure 4 This is a schematic diagram of the internal structure of the mounting box of this utility model.

[0020] Figure 5 This is a schematic diagram of the connection structure between the connecting leg and the bearing plate of this utility model.

[0021] The components are: 1. Crossbeam; 2. Electric guide rail; 3. Slider; 4. Moving block; 5. Mounting box; 6. Crossbar; 7. Top screw; 8. Lifting mechanism; 9. Connecting leg; 10. Bearing plate; 11. Longitudinal push plate; 12. First hydraulic cylinder; 13. Movable ball; 14. Transverse push plate; 15. Second hydraulic cylinder; 16. Cross platform; 17. Third hydraulic cylinder; 18. Pressing plate; 19. Shuttle opening; 20. Connecting plate. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with specific embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the scope of the utility model.

[0023] like Figures 1-5 As shown, a trolley traveling mechanism for a double-girder bridge crane includes a lifting mechanism 8 mounted above two crossbeams 1. The lifting mechanism 8 is the most important component of the trolley assembly, capable of lifting goods, and typically includes a drive unit, lifting ropes, and hooks. Electric guide rails 2 are fixedly mounted on the top of each of the two crossbeams 1, and sliders 3 are slidably connected to each of the two electric guide rails 2. Moving blocks 4 are fixedly mounted on the top of each of the two sliders 3. A mounting box 5 is provided between the lifting mechanism 8 and the crossbeams 1. Two crossbars 6 are fixedly mounted on the bottom of the mounting box 5, and the crossbars 6 have scale lines to facilitate the precise adjustment of the moving blocks 4. The two crossbars 6 are respectively connected to the two moving blocks 4. Two connecting legs 9 are fixedly mounted on the bottom of the lifting mechanism 8, and the bottom of each connecting leg 9 extends into the mounting box 5 and is jointly fixedly mounted on a bearing plate 10, which contacts the inner bottom wall of the mounting box 5.

[0024] The top of the mounting box 5 is open. First hydraulic cylinders 12 are fixed to both sides of the outer wall of the mounting box 5, and second hydraulic cylinders are fixed to the other two sides of the outer wall of the mounting box 5. The output ends of both the first and second hydraulic cylinders penetrate the mounting box 5. A longitudinal push plate 11 and a second hydraulic cylinder 1514 are respectively fixed to the output ends of the first and second hydraulic cylinders. The longitudinal push plate 11, driven by the first hydraulic cylinders 12, can push the support plate 10 to move longitudinally. The synchronous relative movement of the two first hydraulic cylinders 12 moves the support plate 10 to the middle position longitudinally. The second hydraulic cylinders 1514, driven by the second hydraulic cylinders, can push the support plate 10 to move laterally. The synchronous relative movement of the two second hydraulic cylinders moves the support plate 10 to the middle position laterally.

[0025] Both the longitudinal push plate 11 and the second hydraulic cylinder 1514 are in contact with the bottom inner wall of the mounting box 5. Movable balls 13 are embedded on the adjacent sides of the longitudinal push plates 11, allowing them to rotate on the longitudinal push plates 11. When centering the support plate 10, the longitudinal position of the support plate 10 is adjusted first, followed by the lateral position adjustment. During the lateral position adjustment, the movable balls 13 reduce the friction between the support plate 10 and the longitudinal push plate 11, assisting in the lateral movement of the support plate 10.

[0026] A horizontal platform 16 is fixedly installed on the top of the second hydraulic cylinder 1514. The horizontal platform 16 extends into the mounting box 5. A third hydraulic cylinder 17 is fixedly installed at the bottom of one end of the horizontal platform 16 inside the mounting box 5. A pressure plate 18 is fixedly installed at the output end of the third hydraulic cylinder 17. The pressure plate 18 is located above the support plate 10. After the centering operation of the support plate 10 is completed, the extension of the third hydraulic cylinder 17 causes the pressure plate 18 to press onto the support plate 10, thereby fixing the support plate 10.

[0027] Both the bottom of the mounting box 5 and the center of the support plate 10 have shuttle openings 19 for the lifting rope of the lifting mechanism 8 to pass through. The size of the shuttle opening 19 on the mounting box 5 is larger than the size of the shuttle opening 19 on the support plate 10. The size of the shuttle opening 19 in the center of the support plate 10 does not need to be very large, just large enough for the lifting rope to pass through. In specific operation, the hook is removed, the lifting rope is passed through the shuttle opening 19 on the support plate 10, the hook is then reinstalled, and the lifting mechanism along with the support plate 10 is placed in the mounting box 5. Since the centering operation of the support plate 10 requires the overlapping space of the two shuttle openings 19, and the hook needs to pass through the mounting box 5, the shuttle opening 19 on the mounting box 5 needs to be large enough.

[0028] Both ends of the crossbar 6 are welded with connecting pieces 20, and the two crossbars 6 are symmetrically welded to both sides of the shuttle opening 19 on the mounting box 5 through the connecting pieces 20.

[0029] The movable block 4 has a top screw 7 threaded through its side. One end of the top screw 7 abuts against the crossbar 6, thus fixing the movable block 4 to the crossbar 6.

[0030] The working principle of this utility model is as follows:

[0031] In use, first place the lifting mechanism 8 to be installed in the mounting box 5, then activate the two first hydraulic cylinders 12 to extend their output ends, and the two longitudinal push plates 11 move closer to each other synchronously, thus pushing the bearing plate 10 to move until the movable balls 13 on the two longitudinal push plates 11 are in contact with the bearing plate 10, thus pushing the lifting mechanism 8 to the longitudinal centering state. Then activate the two second hydraulic cylinders to extend their output ends, and the two second hydraulic cylinders 1514 move closer to each other. When one of the second hydraulic cylinders 1514 contacts the bearing plate 10, it will push the bearing plate 10 with the rolling assistance of the movable balls 13 until both second hydraulic cylinders 1514 are in contact with the bearing plate 10, thus completing the lateral centering adjustment of the lifting mechanism 8. Then activate the output shafts of the two third hydraulic cylinders 17 to extend, and the two pressure plates 18 begin to descend, finally pressing the bearing plate 10 from top to bottom, thus achieving stable holding of the lifting mechanism 8.

[0032] Subsequently, by having external personnel control the electric guide rail 2, the slider 3 can move along the crossbeam 1 with the mounting box 5 and the lifting mechanism 8.

[0033] In subsequent use, when the trolley needs to be installed on a double-girder bridge crane of other tonnage, the slider 3 is separated from the electric guide rail 2. In order to make the slider 3 match the position of the electric guide rail 2 on the crane, the two set screws 7 can be turned first to separate the two set screws 7 from the cross bar 6. Then, the two moving blocks 4 are moved until they are moved to the designated position. Then, the set screws 7 are tightened to fix the moving blocks 4 and the cross bar 6. Then the slider 3 can be installed on the electric guide rail 2 for use.

[0034] When it is necessary to replace the lifting mechanism 8, the first hydraulic cylinder 12, the second hydraulic cylinder, and the third hydraulic cylinder 17 are retracted, the lifting mechanism 8 along with the bearing plate 10 is removed, and another lifting mechanism 8 along with the bearing plate 10 is replaced. After it is placed, it is centered and fixed by the first hydraulic cylinder 12, the second hydraulic cylinder, and the third hydraulic cylinder 17. The operation is convenient.

[0035] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention should fall within the protection scope of the present invention.

[0036] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A twin-beam bridge crane trolley travelling mechanism comprising a hoisting mechanism arranged above two crossbeams, characterized in that, The top of two beams is fixedly installed with electric guide rails, the two electric guide rails are slidably connected with sliders, the top of the two sliders is fixedly installed with moving blocks, a lifting mechanism and a beam are provided with a mounting box, the bottom of the mounting box is fixedly installed with two horizontal rods, the horizontal rods are provided with scale lines, the two horizontal rods are respectively connected in two moving blocks, the bottom of the lifting mechanism is fixedly installed with two connecting legs, the bottom of the two connecting legs is extended into the mounting box and is fixedly installed with a bearing plate, the bearing plate is in contact with the bottom inner wall of the mounting box.

2. Double-girder bridge crane trolley running gear according to claim 1, characterized in that The top of the mounting box is open, the two sides of the outer wall of the mounting box are fixedly installed with first hydraulic cylinders, the other two sides of the outer wall of the mounting box are fixedly installed with second hydraulic cylinders, the output ends of the first hydraulic cylinders and the second hydraulic cylinders are extended through the mounting box, the output ends of the first hydraulic cylinders and the second hydraulic cylinders are fixedly installed with longitudinal push plates and transverse push plates.

3. Double-girder bridge crane trolley running gear according to claim 2, characterized in that The longitudinal push plates and the transverse push plates are in contact with the bottom inner wall of the mounting box, the sides of the longitudinal push plates close to each other are embedded with movable balls.

4. Double-girder bridge crane trolley running gear according to claim 2, characterized in that The top of the transverse push plate is fixedly installed with a horizontal table, the horizontal table extends into the mounting box, the bottom of the end of the horizontal table extending into the mounting box is fixedly installed with a third hydraulic cylinder, the output end of the third hydraulic cylinder is fixedly installed with a pressing plate, and the pressing plate is above the bearing plate.

5. The twin-beam bridge crane trolley traveling mechanism according to claim 1, characterized in that, The bottom of the mounting box and the central position of the bearing plate are provided with shuttle openings, the lifting rope of the lifting mechanism passes through the shuttle openings, and the size of the shuttle opening on the mounting box is greater than that of the shuttle opening on the bearing plate.

6. Double-girder bridge crane trolley running gear according to claim 5, characterized in that The two ends of the horizontal rod are welded with connecting plates, and the two horizontal rods are symmetrically welded on the two sides of the mounting box through the connecting plates.

7. The twin-beam bridge crane trolley traveling mechanism according to claim 1, characterized in that, The moving block is provided with a top wire penetrating and silk connecting a top wire, and one end of the top wire is in contact with the horizontal rod.

Images