Wheel rail walking mechanism of bridge girder erection machine

Abstract

The utility model belongs to the technical field of bridge girder erection machines, and particularly relates to a wheel rail walking mechanism of a bridge girder erection machine. The walking mechanism comprises a supporting seat, a base and a wheel frame; the base is hinged to the supporting seat, and the wheel frame rotates relative to the base. The driving mechanism and the wheel frame are located in the same vertical plane; one side of each driving wheel is correspondingly provided with one driving mechanism, and one driving mechanism drives one driving wheel. In the walking mechanism, the driving mechanism is of a vertical structure, so that the transverse width of the walking mechanism is reduced, and the bridge girder erection machine with the walking mechanism can pass through the surface of a box girder with width limitation more conveniently; the wheel frame can rotate relative to the base, and the base can rotate relative to the supporting seat. The walking mechanism can adapt to the condition of a larger gradient; meanwhile, due to the fact that each driving wheel is driven by the independent driving mechanism, each driving wheel has enough power, and the power requirement when the walking mechanism passes through a larger gradient is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge erection machines, and in particular relates to a wheel-rail running mechanism of a bridge erection machine. Background Art

[0002] Most of my country's high-speed railways are based on bridges, and high-speed railways are laid on elevated bridges. When building elevated bridges, bridge-building machines are generally used. Bridge-building machines are equipment that places prefabricated beams on prefabricated bridge piers.

[0003] In the prior art, as follows Figure 1 As shown, in some cases, prefabricated box girders need to be erected simultaneously with the "three walls", and the slag retaining wall 30 therein directly limits the passable width of the box girder surface, causing the running mechanism 10 of the existing bridge-erecting machine's rear support leg 20 to interfere with the slag retaining wall 30, resulting in the bridge-erecting machine being unable to pass through the box girder with the slag retaining wall 30; and the running mechanism of the bridge-erecting machine's rear support leg can only adapt to a limited maximum longitudinal slope angle of erection, which cannot meet the demand for smoothly passing a larger slope.

[0004] Therefore, it is necessary to provide an improved technical solution to the above-mentioned deficiencies in the prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a wheel-rail running mechanism for a bridge erection machine, so as to at least solve the above-mentioned problems existing in the prior art.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A bridge erection machine wheel-rail running mechanism, the running mechanism comprising:

[0008] A support base, used to support the rear legs of the bridge erection machine;

[0009] A base, the base being located below the support base and hingedly connected to the support base;

[0010] Wheel frames, multiple wheel frames are evenly distributed on both sides of the base, and the wheel frames are rotatably arranged relative to the base; each wheel frame is rotatably arranged with two driving wheels;

[0011] The driving mechanism and the wheel frame are in the same vertical plane; and a driving mechanism is correspondingly provided on one side of each driving wheel, and one driving mechanism drives one driving wheel.

[0012] As described above, the wheel-rail running mechanism of the bridge erection machine is preferably provided with a plurality of heightening columns at the lower portion of the base, and each wheel frame is hinged to the bottom end of a heightening column.

[0013] As described above, in the wheel-rail running mechanism of the bridge erection machine, preferably, the two driving wheels on each wheel frame are symmetrically arranged about the wheel frame hinge point.

[0014] As described above, in the wheel-rail running mechanism of the bridge erection machine, preferably, the driving mechanism is located on the side of the driving wheel away from the heightening column.

[0015] As described above, in the wheel-rail running mechanism of the bridge erection machine, preferably, a plurality of springs are provided between the base and the support seat.

[0016] As described above, in the wheel-rail running mechanism of the bridge erection machine, preferably, each of the springs is arranged corresponding to a heightening column position so that the heightening column presses the corresponding wheel frame downward.

[0017] As described above, the wheel-rail running mechanism of the bridge erection machine, preferably, the driving mechanism includes a motor and a gear reducer, and the motor is transmission-connected to the input end of the driving gear reducer.

[0018] As described above, the wheel-rail running mechanism of the bridge erection machine is preferably provided with a driving gear coaxially on the driving wheel, and the driving gear rotates synchronously with the driving wheel; and the driving gear is meshed with the output end gear of the gear reducer for transmission.

[0019] Beneficial effects:

[0020] In this running mechanism, the driving mechanism is a vertical structure, which reduces the lateral width of the running mechanism and makes it easier for the bridge-building machine with the running mechanism to pass through the box beam surface with width restrictions; and the wheel frame can rotate relative to the base, and the base can rotate relative to the support seat; so that the running mechanism can adapt to conditions with larger slopes; at the same time, since each driving wheel is driven by a separate driving mechanism, each driving wheel has sufficient power to meet the power requirements of the running mechanism when passing through a larger slope.

[0021] A spring is provided corresponding to each raising column, and the spring is in the same vertical extension direction of the raising column, so that each raising column can press each wheel frame downward to ensure that the two driving wheels in each wheel frame are fully grounded, so that each driving wheel has sufficient grip, thereby providing sufficient driving force for the running mechanism to meet the power requirements of the running mechanism when passing through a larger slope.

[0022] The driving wheel and the driving gear are coaxially arranged, and the output end gear of the gear reducer is meshed with the driving gear for transmission, so that the driving wheel can withstand a larger torque, making it easier to drive the bridge erection machine through terrain with a larger slope. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting part of this application are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention.

[0024] Figure 1 It is a structural diagram of the running mechanism in the prior art;

[0025] Figure 2 This is a side view of a running mechanism according to an embodiment of the present invention;

[0026] Figure 3 This is a front view of a running mechanism according to an embodiment of the present invention;

[0027] Figure 4 This is a partially enlarged view of the driving mechanism of an embodiment of the utility model.

[0028] In the figure: 10, traveling mechanism; 20, rear support leg; 30, slag retaining wall;

[0029] 1. Support seat; 2. Base; 3. Spring; 4. Driving wheel; 5. Heightening column; 6. Wheel frame; 7. Driving mechanism. DETAILED DESCRIPTION

[0030] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0031] In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0033] According to the specific embodiment of the present utility model, Figure 1-4 As shown, the utility model provides a bridge erection machine wheel-rail running mechanism, the running mechanism includes:

[0034] Support base 1, support base 1 is used to support the rear legs of the bridge-building machine; in this embodiment, the rear legs of the bridge-building machine are fixed on the support base 1 and supported by the support base 1.

[0035] The base 2 is located below the support base 1 and is hingedly connected to the support base 1 so that the base 2 can rotate at a certain angle relative to the support base 1.

[0036] The wheel frames 6 are evenly distributed on both sides of the base 2 , and the wheel frames 6 are rotatably arranged relative to the base 2 ; each wheel frame 6 is rotatably arranged with two driving wheels 4 .

[0037] The driving mechanism 7 and the wheel frame 6 are in the same vertical plane; and a driving mechanism 7 is correspondingly provided on one side of each driving wheel 4, and one driving mechanism 7 drives one driving wheel 4.

[0038] In this running mechanism, the driving mechanism 7 is arranged in the same vertical plane as the wheel frame 6, that is, the driving mechanism 7 is a vertical structure, thereby reducing the lateral width of the running mechanism. First, it can be more convenient for the bridge-building machine with this running mechanism to pass through the box beam surface with width limitation; secondly, the wheel frame 6 can rotate relative to the base 2, and the base 2 can rotate relative to the support seat 1; that is, when the support seat 1 remains stable, the wheel frame 6 and the base 2 can both rotate within a larger angle range, so that the running mechanism can adapt to larger slopes; at the same time, since each drive wheel 4 is driven by a separate drive mechanism 7, each drive wheel 4 has sufficient power to meet the power requirements of the running mechanism when passing through a larger slope.

[0039] A plurality of heightening columns 5 are provided at the bottom of the base 2, and each wheel frame 6 is hingedly connected to the bottom end of a heightening column 5. In one embodiment of the present application, the heightening columns 5 are used to increase the distance between the base 2 and the wheel frame 6, thereby providing space for the drive mechanism 7, thereby facilitating the reduction of the width of the running mechanism.

[0040] The two driving wheels 4 on each wheel carrier 6 are symmetrically arranged with respect to the hinge point of the wheel carrier 6. In the present embodiment, the hinge point of the wheel carrier 6 is located between the two driving wheels 4, so that the wheel carrier 6 can be stressed more evenly.

[0041] The drive mechanism 7 is located on the side of the drive wheel 4 away from the heightening column 5. In one embodiment of the present application, the drive mechanism 7 is located on the side of the drive wheel 4 away from the heightening column 5, so that the two drive mechanisms 7 on each drive frame are located on both sides of the drive frame, avoiding interference between the drive mechanism 7 and the heightening column 5; and the drive mechanism 7 is completely located in the space between the plane of the base 2 and the plane of the wheel frame 6. Although this increases the height of the traveling mechanism to a certain extent, it also greatly shortens the width of the traveling mechanism, allowing the traveling mechanism to pass through relatively narrow spaces.

[0042] A plurality of springs 3 are provided between the base 2 and the support base 1. Each spring 3 is provided at a corresponding position of a heightening column 5 so that the heightening column 5 presses downwardly against the corresponding wheel frame 6. In one embodiment of the present application, a spring 3 is provided corresponding to each heightening column 5, and the springs 3 are located in the same vertical extension direction of the heightening columns 5, so that each heightening column 5 can press downward against each wheel frame 6, thereby ensuring that both drive wheels 4 in each wheel frame 6 are fully grounded, so that each drive wheel 4 has sufficient grip, thereby providing sufficient driving force for the running mechanism to meet the power requirements of the running mechanism when negotiating a large slope.

[0043] The drive mechanism 7 includes a motor and a gear reducer, wherein the motor is connected to the input end of the drive gear reducer. In one embodiment of the present application, the motor is used to provide driving force, and the gear reducer is used to reduce speed and increase torque to provide sufficient rotational torque for the drive wheel 4.

[0044] A drive gear is coaxially disposed on the drive wheel 4, and the drive gear rotates synchronously with the drive wheel 4; the drive gear meshes with the output gear of the gear reducer for transmission. In one embodiment of the present application, the drive wheel 4 is coaxially disposed with the drive gear, and the output gear of the gear reducer meshes with the drive gear for transmission, thereby driving the drive gear and the drive wheel 4 to rotate synchronously. Due to the heavy weight of the bridge-building machine, a very large torque is required to move the bridge-building machine. By providing a drive gear coaxial with the drive wheel 4, the drive wheel 4 can withstand a large torque, making it easier to drive the bridge-building machine through terrain with a large slope.

[0045] It will be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A wheel-rail running mechanism for a bridge erection machine, characterized in that: The running mechanism comprises: A support base, used to support the rear legs of the bridge erection machine; A base, the base being located below the support base and hingedly connected to the support base; Wheel frames, multiple wheel frames are evenly distributed on both sides of the base, and the wheel frames are rotatably arranged relative to the base; each wheel frame is rotatably arranged with two driving wheels; The driving mechanism and the wheel frame are in the same vertical plane; and a driving mechanism is correspondingly provided on one side of each driving wheel, and one driving mechanism drives one driving wheel.

2. The wheel-rail running mechanism of the bridge erection machine according to claim 1, characterized in that: A plurality of heightening columns are arranged at the lower part of the base, and each wheel frame is hinged to the bottom end of a heightening column.

3. The wheel-rail running mechanism of the bridge erection machine according to claim 2, characterized in that: The two drive wheels on each wheel carrier are arranged symmetrically about the wheel carrier hinge point.

4. The wheel-rail running mechanism of the bridge erection machine according to claim 3, characterized in that: The driving mechanism is located on a side of the driving wheel away from the heightening column.

5. The wheel-rail running mechanism of the bridge erection machine according to claim 2, characterized in that: A plurality of springs are arranged between the base and the support seat.

6. The wheel-rail running mechanism of the bridge erection machine according to claim 5, characterized in that: Each of the springs is arranged corresponding to a heightening column position so that the heightening column presses the corresponding wheel frame downward.

7. The wheel-rail running mechanism of the bridge erection machine according to any one of claims 1 to 6, characterized in that: The driving mechanism includes a motor and a gear reducer, and the motor is transmission-connected to the input end of the driving gear reducer.

8. The wheel-rail running mechanism of the bridge erection machine according to claim 7, characterized in that: A driving gear is coaxially arranged on the driving wheel, and the driving gear rotates synchronously with the driving wheel; and the driving gear is meshed with the output end gear of the gear reducer for transmission.

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