Walking mechanism of beam lifter

Abstract

The utility model relates to the technical field of beam lifting machines, in particular to a walking mechanism of a beam lifting machine. A pair of walking wheel sets is symmetrically arranged on the two sides of the supporting beam. The walking wheel set is detachably connected with the supporting beam. The walking wheel set comprises a mounting base, a supporting frame and walking wheels, the mounting base is detachably connected with the supporting beam, and the supporting frame is vertically arranged; the upper end of the support frame is rotationally connected with the mounting seat along the axial direction, and the lower end is rotationally connected with the walking wheel along the horizontal direction; a steering mechanism is arranged on the supporting frame and used for being matched with the supporting frame to drive the walking wheels to steer, multiple pairs of walking wheel sets are arranged on the supporting beam in the axial direction at intervals, and a synchronizing mechanism is arranged between the multiple pairs of walking wheel sets and used for synchronizing the steering amplitude of the multiple pairs of walking wheel sets. The synchronizing mechanism is arranged among the multiple pairs of walking wheel sets, under the constraint effect of the synchronizing mechanism, the steering amplitude of each walking wheel can be kept consistent, and finally stable steering of the whole beam lifter is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of beam lifting machines, and in particular to a traveling mechanism of a beam lifting machine. Background Art

[0002] The beam lifting machine is a gantry crane specially designed for bridge construction. It is mainly composed of assembled main beams, outriggers, overhead cranes, etc. The components are connected by pins and high-strength bolts, which are easy to disassemble and transport. Compared with ordinary gantry cranes, it is convenient and quick to install, economical and practical, and is suitable for road and bridge construction units that frequently move.

[0003] Chinese patent announcement number CN216583837U discloses a track steering mechanism of a tire-type hydraulic beam lifting machine. When steering is required, the first connecting column rotates left and right to drive the first shift wheel and the second shift wheel to change position and change the direction of travel, thereby achieving the purpose of steering the beam lifting machine, improving the flexibility of steering, improving the convenience of operation, reducing the friction between the first shift wheel and the second shift wheel and the ground when steering, and improving practicality. By connecting the bottom end of the second support column with the top end of the shock absorbing device, the stability of the steering mechanism structure is improved, the firmness of the connection is improved, and the practicality is improved; it also includes a first shift wheel, a first wheel shaft, a second shift wheel, a second wheel shaft, a first connecting column, a first support column, a support plate, a second support column, a bearing, a top plate and a shock absorbing device. The right end of the first shift wheel is rotatably connected to the left end of the first wheel shaft, and the left end of the second shift wheel is rotatably connected to the right end of the second wheel shaft. However, when the device is actually used, there are the following problems:

[0004] The steering of the various components that are linked to each other is prone to errors of varying sizes, which can easily affect the overall steering. The device also does not propose a structure for synchronizing the steering amplitudes between tires.

[0005] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content

[0006] The purpose of the present application is to provide a traveling mechanism for a beam lifting machine to solve or alleviate the problems existing in the above-mentioned prior art.

[0007] In order to achieve the above objectives, this application provides the following technical solutions:

[0008] A walking mechanism of a beam lifting machine comprises a supporting beam;

[0009] A pair of running wheel assemblies are symmetrically arranged on both sides of the support beam; the running wheel assemblies are detachably connected to the support beam;

[0010] The walking wheel group includes a mounting seat, a support frame, and a walking wheel. The mounting seat is detachably connected to the support beam, and the support frame is arranged vertically; the upper end of the support frame is rotatably connected to the mounting seat along its own axis, and the lower end is rotatably connected to the walking wheel along the horizontal direction;

[0011] The support frame is provided with a steering mechanism for cooperating with the support frame to drive the steering of the walking wheels. The support beam is provided with multiple pairs of walking wheel groups axially spaced apart. A synchronization mechanism is provided between the multiple pairs of walking wheel groups for synchronizing the steering amplitudes of the multiple pairs of walking wheel groups.

[0012] In the traveling mechanism of the beam lifting machine as described above, preferably, the synchronization mechanism includes a connecting rod and a transmission rod, the connecting rod is statically connected to the supporting frame, and the two ends of the transmission rod are respectively hinged to two adjacent connecting rods on adjacent traveling wheel sets.

[0013] The walking mechanism of the beam lifting machine as described above is preferably provided with a cushion block detachably arranged on the side of the support frame along the horizontal direction perpendicular to the axis of the support beam, and the connecting rod is detachably arranged on the cushion block.

[0014] In the traveling mechanism of the beam lifting machine as described above, preferably, the pad block is provided with two mounting holes, each of the mounting holes is detachably connected to a connecting rod; and both ends of each transmission rod are respectively hinged to the connecting rods arranged on mutually adjacent mounting holes.

[0015] The traveling mechanism of the beam lifting machine as described above is preferably provided with removable cushion blocks on both sides of the support frame along a horizontal direction perpendicular to the axis of the support beam.

[0016] As described above, the walking mechanism of the beam lifting machine, preferably, the steering mechanism includes a driving mechanism and a rotating base;

[0017] The upper end of the support frame is rotatably connected to the mounting seat via a rotating shaft, and the rotating base is fixedly sleeved on the rotating shaft; the driving mechanism is axially retractable and horizontally arranged on the bottom surface of the supporting beam; one end of the driving mechanism is rotatably connected to the supporting beam along the vertical direction, and the other end is rotatably connected to the rotating base along the vertical direction.

[0018] The walking mechanism of the beam lifting machine as described above, preferably, a plurality of fixing mechanisms are arranged at intervals on the bottom surface of the support beam along the axial direction of the support beam, each of the fixing mechanisms is located between each pair of walking wheel groups, and the plurality of fixing mechanisms are detachably connected to the support beam;

[0019] The two driving mechanisms of each pair of walking wheel groups are rotatably arranged on both sides of the corresponding fixing mechanism.

[0020] In the above-mentioned walking mechanism of the beam lifting machine, preferably, the plurality of fixing mechanisms are detachably connected to the support beam via fixing rods;

[0021] The fixing rod is axially telescopically arranged at the center of the fixing mechanism.

[0022] In the walking mechanism of a beam lifting machine as described above, preferably, the walking wheels are rotatably connected to both sides of the support frame along a horizontal direction parallel to the axis of the support beam.

[0023] Compared with the closest prior art, the technical solution of the embodiment of the present application has the following beneficial effects:

[0024] By setting the upper end of the support frame and the mounting seat to be rotatably connected along the axial direction of the support frame itself, the support frame can be rotated in the horizontal direction under the drive of the steering mechanism, thereby driving the traveling wheels rotatably connected to the lower end of the support frame to turn horizontally. At the same time, since a synchronization mechanism is provided between multiple pairs of traveling wheel groups, the steering amplitude of each traveling wheel can be kept consistent under the constraint of the synchronization mechanism, and finally the overall stable steering of the beam lifting machine is achieved; on the other hand, since the mounting seat and the support beam are detachably connected, when the traveling wheel group is damaged and cannot work normally, it can be replaced by disassembling the damaged parts to restore the normal use of the beam lifting machine, which is simple, convenient and cost-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. Among them:

[0026] Figure 1 It is a schematic diagram of the overall structure of a walking mechanism of a beam lifting machine provided according to some embodiments of the present application;

[0027] Figure 2 A schematic diagram of a steering mechanism arrangement of multiple pairs of running wheel sets provided according to some embodiments of the present application;

[0028] Figure 3 A schematic diagram of a fixing mechanism provided according to some embodiments of the present application;

[0029] Figure 4 A schematic diagram of the connection between a walking wheel set and a steering mechanism provided according to some embodiments of the present application;

[0030] Figure 5 A schematic diagram of a synchronization mechanism installation provided according to some embodiments of the present application;

[0031] Figure 6 for Figure 1 A magnified view of the structure in Figure 2.

[0032] Description of reference numerals:

[0033] 1. Support beam; 2. Mounting seat; 3. Rotating shaft; 4. Rotating base; 5. Fixing rod; 6. Fixing mechanism; 7. Rotating cylinder; 8. Driving mechanism; 9. Support frame; 10. Pad; 11. Connecting rod; 12. Transmission rod. DETAILED DESCRIPTION

[0034] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present application and does not limit the present application. In fact, it will be clear to those skilled in the art that modifications and variations may be made in the present application without departing from the scope or spirit of the present application. For example, a feature shown or described as a part of an embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desired that the present application includes such modifications and variations within the scope of the appended claims and their equivalents.

[0035] In the following description, the terms "first / second / third" involved are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that "first / second / third" can be interchanged with a specific order or sequence where permitted, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present disclosure belongs. The terms used herein are only for the purpose of describing the embodiments of the present disclosure and are not intended to limit the present disclosure.

[0037] In the description of the present application, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and do not require that the present application must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present application. The terms "connected", "connected", and "set" used in the present application should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component; it can be a wired electrical connection, a radio connection, or a wireless communication signal connection. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0038] The following will be combined with the attached Figure 1-6 The traveling mechanism of a beam lifting machine of the present application is further described in detail.

[0039] A walking mechanism of a beam lifting machine comprises a supporting beam 1;

[0040] A pair of running wheel sets are symmetrically arranged on both sides of the support beam 1; the running wheel sets are detachably connected to the support beam 1;

[0041] The walking wheel group includes a mounting seat 2, a support frame 9, and a walking wheel. The mounting seat 2 is detachably connected to the support beam 1, and the support frame 9 is arranged vertically; the upper end of the support frame 9 is rotatably connected to the mounting seat 2 along its own axis, and the lower end is rotatably connected to the walking wheel along the horizontal direction;

[0042] A steering mechanism is provided on the support frame 9 for cooperating with the support frame 9 to drive the steering of the travel wheel. A plurality of pairs of travel wheel assemblies are axially spaced apart on the support beam 1. A synchronization mechanism is provided between the plurality of travel wheel assemblies for synchronizing the steering amplitude of the plurality of travel wheel assemblies.

[0043] In a specific embodiment of the present application, the mounting seats 2 are symmetrically arranged on both sides of the support beam 1 in a horizontal direction perpendicular to the axis of the support beam 1, and the mounting seats 2 are bolted to the two side surfaces of the support beam 1. The upper end of the vertically arranged support frame 9 penetrates the mounting seat 2 from bottom to top, the support frame 9 is rotationally connected to the mounting seat 2 along its own axis, and the lower end of the support frame 9 is rotationally connected to the walking wheel in a horizontal direction parallel to the axis of the support beam 1.

[0044] In actual use, on the one hand, since the upper end of the support frame 9 is connected to the mounting seat 2 for rotation along the axial direction of the support frame 9 itself, the support frame 9 can rotate in the horizontal direction under the drive of the steering mechanism, thereby driving the running wheels connected to the lower end of the support frame 9 to turn horizontally. At the same time, since a synchronization mechanism is arranged between multiple pairs of running wheel groups, under the constraint of the synchronization mechanism, the steering amplitude of each running wheel can be kept consistent, and finally the overall stable steering of the beam lifting machine is realized; on the other hand, since the mounting seat 2 is detachably connected to the support beam 1, when the running wheel group is damaged and cannot work normally, it can be replaced by disassembling the damaged parts to restore the normal use of the beam lifting machine, which is simple, convenient and cost-saving.

[0045] In other embodiments of the present application, the lower end of the support frame 9 is rotatably connected to the walking wheel along a horizontal direction perpendicular to the axis of the support beam 1.

[0046] The synchronization mechanism includes a connecting rod 11 and a transmission rod 12. The connecting rod 11 is statically connected to the support frame 9, and the two ends of the transmission rod 12 are respectively hinged to two adjacent connecting rods 11 on adjacent walking wheel groups.

[0047] In a specific embodiment of the present application, the connecting rod 11 is statically connected to the side of the support frame 9 in a horizontal direction perpendicular to the axis of the support beam 1, wherein the static connection means that the connecting rod 11 and the support frame 9 can maintain a constant relative position during actual use. When the running wheel turns, the connecting rod 11 statically connected to the side of the support frame 9 also turns together and the steering amplitude is consistent with the running wheel, and then under the transmission action of the transmission rod 12, the steering amplitude of the corresponding connecting rod 11 can be transmitted to the connecting rod 11 on the next support frame 9, so that the steering amplitudes of adjacent running wheels remain consistent, achieving overall stable steering. The overall structure of the synchronization mechanism is simple, the force transmission is stable and it is also easy to install.

[0048] Along the horizontal direction perpendicular to the axis of the support beam 1 , a cushion block 10 is detachably provided on the side of the support frame 9 , and a connecting rod 11 is detachably provided on the cushion block 10 .

[0049] In a specific embodiment of the present application, the connecting rod 11 is threadedly connected to the cushion block 10, and the cushion block 10 is fixed to the side of the support frame 9. When the synchronization mechanism components are damaged, the normal use of the device can be restored by removing the damaged components. At the same time, the connecting rod 11 is arranged on the support frame 9 through the cushion block 10, which can avoid structural damage to the support frame 9 to maintain the overall strength and stability of the support frame 9.

[0050] The cushion block 10 is provided with two mounting holes, each of which is detachably connected to a connecting rod 11; both ends of each transmission rod 12 are respectively hinged to the connecting rods 11 provided on the mutually adjacent mounting holes.

[0051] In a specific embodiment of the present application, along the axial direction of the support beam 1, a connecting rod 11 is provided on one side of the support frame 9 at both ends of the support beam 1, and two connecting rods 11 are provided on one side of the support frame 9 between the two ends of the support beam 1, so that each synchronization mechanism connecting adjacent running wheel groups includes two separately provided connecting rods 11 and a transmission rod 12. By independently providing the synchronization mechanisms between adjacent running wheel groups, when a synchronization mechanism at a certain location is damaged, there is no need to dismantle and replace the overall synchronization mechanism of the beam lifting machine, which further improves the convenience of component adjustment.

[0052] Along the horizontal direction perpendicular to the axis of the support beam 1 , cushion blocks 10 are detachably provided on both sides of the support frame 9 .

[0053] In a specific embodiment of the present application, a connecting rod 11 is provided on both sides of the support frame 9 at both ends of the support beam 1 along the axial direction of the support beam 1, and two connecting rods 11 are provided on both sides of the support frame 9 between the two ends of the support beam 1, so that adjacent walking wheel groups are connected through two parallel synchronous mechanisms, so as to improve the stability of the synchronous mechanism in controlling the rotation amplitude of the walking wheel group.

[0054] The steering mechanism includes a driving mechanism 8 and a rotating base 4;

[0055] The upper end of the support frame 9 is rotatably connected to the mounting seat 2 through the rotating shaft 3, and the rotating base 4 is fixedly sleeved on the rotating shaft 3; the driving mechanism 8 is axially retractable and horizontally arranged on the bottom surface of the support beam 1, one end of the driving mechanism 8 is rotatably connected to the support beam 1 along the vertical direction, and the other end is rotatably connected to the rotating base 4 along the vertical direction.

[0056] In a specific embodiment of the present application, the cooperation between the driving mechanism 8, the rotating base 4 and the bottom surface of the support beam 1 is based on the working principle of the crank-connecting rod structure. Specifically, the rotating base 4 extends the ear plate horizontally to one side, and the driving mechanism 8 is arranged on the same side of the ear plate along the horizontal direction perpendicular to the axis of the support beam 1. The driving mechanism 8 is a hydraulic cylinder, and the telescopic end of the hydraulic cylinder is hinged to the ear plate in the vertical direction, and the cylinder end of the hydraulic cylinder is rotatably connected to the bottom surface of the support beam 1 in the vertical direction.

[0057] Along the axial direction of the support beam 1, a plurality of fixing mechanisms 6 are arranged at intervals on the bottom surface of the support beam 1, each fixing mechanism 6 is located between each pair of walking wheel sets, and the plurality of fixing mechanisms 6 are detachably connected to the support beam 1;

[0058] The two driving mechanisms 8 of each pair of traveling wheel sets are rotatably arranged on both sides of the corresponding fixing mechanism 6 .

[0059] In a specific embodiment of the present application, the number of fixing mechanisms 6 is the same as the number of walking wheel groups. Each fixing mechanism 6 is provided with two rotating cylinders 7 on both sides of the axial direction of the support beam 1. The rotating cylinders 7 are arranged in the fixing mechanism 6 for rotation along the vertical direction. The cylinder end of each hydraulic cylinder is clamped and fixed to the rotating cylinder 7 on the same side to avoid structural damage to the hydraulic cylinder and facilitate disassembly and replacement.

[0060] A plurality of fixing mechanisms 6 are detachably connected to the support beam 1 via the fixing rod 5;

[0061] The fixing rod 5 is axially telescopically arranged at the center of the fixing mechanism 6 .

[0062] In the specific embodiment of the present application, the upper end of the fixing rod 5 vertically penetrates the fixing mechanism 6 and is threadedly connected to the bottom surface of the support beam 1, and the lower end of the fixing rod 5 can be axially retracted, and the number of fixing rods 5 is the same as the number of fixing mechanisms 6. When the beam lifting machine is stationary, in order to reduce the squeezing strength of the upper structure on the running wheels and reduce the loss of the running wheels, the fixing rod 5 located at the center of the fixing mechanism 6 is stretched to temporarily support the beam lifting machine.

[0063] Along the horizontal direction parallel to the axis of the support beam 1, the walking wheels are rotatably connected to both sides of the support frame 9.

[0064] In a specific embodiment of the present application, along the horizontal direction parallel to the axis of the support beam 1, both sides of the lower end of the support frame 9 are rotatably connected to a running wheel respectively to improve the working stability of the running wheel group and the supporting strength for the upper structure.

[0065] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A traveling mechanism of a beam lifting machine, characterized in that: including support beams; A pair of running wheel assemblies are symmetrically arranged on both sides of the support beam; the running wheel assemblies are detachably connected to the support beam; The walking wheel group includes a mounting seat, a support frame, and a walking wheel. The mounting seat is detachably connected to the support beam, and the support frame is arranged vertically; the upper end of the support frame is rotatably connected to the mounting seat along its own axis, and the lower end is rotatably connected to the walking wheel along the horizontal direction; The support frame is provided with a steering mechanism for cooperating with the support frame to drive the steering of the walking wheels. The support beam is provided with multiple pairs of walking wheel groups axially spaced apart. A synchronization mechanism is provided between the multiple pairs of walking wheel groups for synchronizing the steering amplitudes of the multiple pairs of walking wheel groups.

2. A traveling mechanism of a beam lifting machine as claimed in claim 1, characterized in that: The synchronization mechanism comprises a connecting rod and a transmission rod. The connecting rod is statically connected to the support frame, and two ends of the transmission rod are respectively hinged to two adjacent connecting rods on adjacent walking wheel sets.

3. A traveling mechanism of a beam lifting machine as claimed in claim 2, characterized in that: Along the horizontal direction perpendicular to the axis of the support beam, a cushion block is detachably provided on the side of the support frame, and the connecting rod is detachably provided on the cushion block.

4. A traveling mechanism of a beam lifting machine as claimed in claim 3, characterized in that: The cushion block is provided with two mounting holes, each of which is detachably connected to a connecting rod; and both ends of each transmission rod are respectively hinged to the connecting rods arranged on the mutually adjacent mounting holes.

5. The traveling mechanism of the beam lifting machine according to claim 3, characterized in that: Along the horizontal direction perpendicular to the axis of the support beam, cushion blocks are detachably arranged on both sides of the support frame.

6. The traveling mechanism of the beam lifting machine according to claim 1, characterized in that: The steering mechanism includes a driving mechanism and a rotating base; The upper end of the support frame is rotatably connected to the mounting seat via a rotating shaft, and the rotating base is fixedly sleeved on the rotating shaft; the driving mechanism is axially retractable and horizontally arranged on the bottom surface of the supporting beam; one end of the driving mechanism is rotatably connected to the supporting beam along the vertical direction, and the other end is rotatably connected to the rotating base along the vertical direction.

7. A traveling mechanism of a beam lifting machine as claimed in claim 6, characterized in that: Along the axial direction of the support beam, a plurality of fixing mechanisms are arranged at intervals on the bottom surface of the support beam, each of the fixing mechanisms is located between each pair of walking wheel groups, and the plurality of fixing mechanisms are detachably connected to the support beam; The two driving mechanisms of each pair of walking wheel groups are rotatably arranged on both sides of the corresponding fixing mechanism.

8. The traveling mechanism of the beam lifting machine according to claim 7, characterized in that: The plurality of fixing mechanisms are detachably connected to the support beam via fixing rods; The fixing rod is axially telescopically arranged at the center of the fixing mechanism.

9. A traveling mechanism of a beam lifting machine as claimed in any one of claims 1 to 8, characterized in that: Along the horizontal direction parallel to the axis of the support beam, the walking wheels are rotatably connected to both sides of the support frame.

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