Manual-automatic following steering large road transportation bridge type beam

Abstract

The utility model discloses a manual-automatic following steering bridge type beam for large-piece road transportation, which belongs to the technical field of large-piece transportation equipment and comprises a fixed base and a cross beam rotatably arranged on the fixed base. The connecting base is fixedly arranged on the rear side of the fixed base, the oil cylinder rear connecting base is fixed to the connecting base, the oil cylinder front connecting base is fixedly connected with the cross beam, and two follow-up steering oil cylinders which are arranged in parallel are installed between the oil cylinder rear connecting base and the oil cylinder front connecting base. The angle limiting alarm device is arranged on one side of the connecting base, and the oil cylinder rear connecting base is detachably connected with the connecting base; according to the utility model, the angle limiting alarm device is arranged to play a role in auxiliary reminding, so that the workload of lookout observation of workers is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of heavy transport equipment, specifically a manual / automatic integrated following steering heavy transport bridge beam. Background Technology

[0002] Bridge-type transport platforms are specialized equipment for transporting large, non-detachable goods such as large transformers, and are generally used in conjunction with hydraulic trailers. In actual operation of a bridge-type transport train, at least three people are typically required on the rear hydraulic trailer (3): one to monitor the road ahead, one to activate the hydraulic power station, and one to operate the steering cylinder control valve. If a curve is detected ahead, the hydraulic power station must be activated, and the steering cylinder control valve operated to steer the rear hydraulic trailer (3). Only in this way can the bridge-type transport train operate normally. Over hundreds or even thousands of kilometers of operation, the personnel responsible for steering the rear hydraulic trailer (3) must repeat this task continuously, which is extremely arduous and requires absolute precision. Otherwise, the rear hydraulic trailer (3) may fail to turn when it should, causing it to veer off course into other lanes or run off the road, potentially leading to a traffic accident.

[0003] In response, Chinese invention patent application CN105151122A discloses a bridge-type transport frame with automatic following and steering function. The bridge-type transport frame has its front and rear ends connected to a front hydraulic trailer and a rear hydraulic trailer via a turntable device and a load-sharing beam, respectively. The turntable device includes a fixed base and a crossbeam that can rotate relative to the fixed base. An automatic following and steering device is installed on the turntable device at the rear end of the bridge-type transport frame. The automatic following and steering device includes a connecting base fixedly mounted above the rear side of the fixed base, a hydraulic cylinder rear connecting seat fixedly mounted on the connecting base, and a hydraulic cylinder front connecting seat fixedly mounted on the crossbeam. Two parallel following and steering hydraulic cylinders are installed between the hydraulic cylinder rear connecting seat and the hydraulic cylinder front connecting seat. The hydraulic circuits of the following and steering hydraulic cylinders are connected to two steering hydraulic cylinders mounted on the rear hydraulic trailer via oil pipes. This invention can reduce the workload of personnel on the rear hydraulic trailer and ensure the safety and passability of the bridge-type transport frame train operation.

[0004] In practical use, when the bridge transport train passes through particularly sharp curves, the selection device needs to be set to manual steering mode. At this time, the oil circuit between the following steering cylinder and the steering cylinder of the rear hydraulic trailer is cut off, so normal manual steering operation can be performed to ensure the passability of the bridge transport train. However, since the crossbeam is connected to the connecting base through the following steering cylinder, the connection of the following steering cylinder will interfere with the large-angle rotation of the crossbeam. That is, disconnecting the following steering cylinder from the rear connecting base is quite troublesome in actual disassembly and assembly. In addition, the bridge transport train cannot automatically turn through sharp curves and still requires one person to look out and observe. Utility Model Content

[0005] In view of this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a manual / automatic steering-guided large-scale highway transport bridge beam. This application provides the following technical solution:

[0006] The device includes a fixed base, a crossbeam rotatably mounted on the fixed base, a connecting base fixedly mounted on the rear side of the fixed base, a hydraulic cylinder rear connecting seat fixedly mounted on the connecting base, and a hydraulic cylinder front connecting seat fixedly connected to the crossbeam. Two parallel following steering hydraulic cylinders are installed between the hydraulic cylinder rear connecting seat and the hydraulic cylinder front connecting seat. The device also includes an angle limit alarm device located beside the connecting base. The hydraulic cylinder rear connecting seat is detachably connected to the connecting base.

[0007] The angle limit alarm device includes an angle detector and an alarm horn. The angle detector is electrically connected to the alarm horn and is used to detect the rotation angle of the crossbeam.

[0008] The hydraulic cylinder rear connecting seat includes a hinge shaft for connecting the following steering hydraulic cylinder and a seat plate on which the hinge shaft is fixedly installed. A connecting plate is fixed on the connecting base, and the seat plate and the connecting plate are connected by a bolt structure.

[0009] The base plate and the connecting plate are provided with corresponding bolt through holes. The bolt structure includes a screw, a bushing, and a nut. The screw passes through the bolt through hole from top to bottom. The bushing is fitted onto the screw from bottom to top and fits into the bolt through hole. The nut is threaded onto the bottom of the screw to lock and limit the bushing to the screw.

[0010] The crossbeam is fixedly installed on the rotating base, and the rotating base is rotatably installed on the fixed base. The front connecting seat of the hydraulic cylinder is also fixedly installed on the rotating base.

[0011] The rear connecting seat of the hydraulic cylinder also includes a vertical plate fixed to the seat plate, the hinge shaft is fixedly connected to the vertical plate, and several reinforcing plates are fixed between the vertical plate and the seat plate.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0013] When preparing to pass through a sharp bend, the crossbeam rotates at a large angle. The angle limit alarm device will issue a warning based on the angle change. The operator will select the steering mode and disconnect the connection between the hydraulic cylinder rear connecting seat and the connecting base. This will ensure that the following steering cylinder does not obstruct the large-angle rotation of the crossbeam. The angle limit alarm device can serve as an auxiliary reminder and reduce the workload of the operator in observation.

[0014] The rear connecting seat of the hydraulic cylinder and the connecting base are connected by bolts. When they are connected, the shear stress between them is borne by the wider bushing, ensuring a stable connection. During disassembly, loosening the nut allows the bolt and bushing to be separated, thus disconnecting the rear connecting seat of the hydraulic cylinder from the connecting base. Disassembly is quick and convenient. At the same time, the rear connecting seat of the hydraulic cylinder is composed of several plates, which ensures its structural strength while reducing its weight. After it is separated from the connecting base, when it is located at the end of the following steering cylinder, its gravity will not generate excessive torque on the connection between the following steering cylinder and the front connecting seat of the hydraulic cylinder.

[0015] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a large-scale highway transport bridge beam with manual / automatic steering.

[0018] Figure 2 This is a schematic diagram from another perspective of a large-scale highway transport bridge beam with manual / automatic steering.

[0019] Figure 3 This is a schematic diagram of the rear connecting seat of the hydraulic cylinder for a large-scale highway transport bridge beam with manual / automatic steering.

[0020] Figure 4 This is a cross-sectional view of the bolted structure of a large highway transport bridge beam with manual / automatic steering.

[0021] Reference numerals in the attached drawings: 1. Fixed base; 2. Crossbeam; 21. Front connecting seat of the hydraulic cylinder; 3. Connecting base; 31. Rear connecting seat of the hydraulic cylinder; 311. Hinge shaft; 312. Seat plate; 313. Vertical plate; 314. Reinforcing plate; 32. Connecting plate; 33. Bolt structure; 331. Screw; 332. Bushing; 333. Nut; 4. Following steering hydraulic cylinder; 5. Angle limit alarm device; 51. Angle detector; 52. Alarm horn; 6. Rotating base. Detailed Implementation

[0022] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0023] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] Please refer to Figure 1-4 As shown, this utility model provides a manual / automatic follow-steering bridge beam for large-scale highway transportation, including a fixed base 1 installed on a rear hydraulic trailer, a crossbeam 2 rotatably mounted on the fixed base 1, a connecting base 3 fixedly mounted on the rear side of the fixed base 1, a hydraulic cylinder rear connecting seat 31 fixed on the connecting base 3, and a hydraulic cylinder front connecting seat 21 fixedly connected to the crossbeam 2. Two parallel follow-steering hydraulic cylinders 4 are installed between the hydraulic cylinder rear connecting seat 31 and the hydraulic cylinder front connecting seat 21. It also includes an angle limit alarm device 5 located next to the connecting base 3. The hydraulic cylinder rear connecting seat 31 is detachably connected to the connecting base 3.

[0026] The angle limit alarm device 5 includes an angle detector 51 and an alarm horn 52. The angle detector 51 is electrically connected to the alarm horn 52. The angle detector 51 is used to detect the rotation angle of the crossbeam 2.

[0027] Among them, the angle sensor 51 adopts a limit switch, specifically a ME series contact roller sensor. The roller of the sensor contacts the outer wall of the crossbeam 2. When the crossbeam 2 rotates, the roller moves accordingly. The roller travels on the crossbeam 2 at different rotation angles, thereby realizing the detection of the crossbeam rotation angle.

[0028] When the crossbeam rotates to a certain angle, the cylinder length of the steering cylinder is limited, which will interfere with the rotation of the crossbeam. The angle sensor 51 detects and generates an electrical signal, causing the alarm horn 52 to sound an alarm at an angle threshold that is less than that angle.

[0029] The hydraulic cylinder rear connecting seat 31 includes a hinge shaft 311 for connecting the following steering hydraulic cylinder 4 and a seat plate 312 on which the hinge shaft 311 is fixedly installed. A connecting plate 32 is fixed on the connecting base 3, and the seat plate 312 and the connecting plate 32 are connected by a bolt structure 33.

[0030] The specific bolt structure 33 can use multiple bolts to connect the seat plate 312 and the connecting plate 32. Alternatively, a pin or other connecting component can be used.

[0031] A corresponding bolt through hole is provided between the seat plate 312 and the connecting plate 32. The bolt structure 33 includes a screw 331, a bushing 332, and a nut 333. The screw 331 passes through the bolt through hole from top to bottom. The bushing 332 is fitted onto the screw 331 from bottom to top and fits into the bolt through hole. The nut 333 is threaded onto the bottom of the screw 331 to lock and limit the bushing 332 to the screw 331.

[0032] The crossbeam 2 is fixedly installed on the rotating base 6, which is rotatably installed on the fixed base 1. The front connecting seat 21 of the hydraulic cylinder is also fixedly installed on the rotating base 6.

[0033] The hydraulic cylinder rear connecting seat 31 also includes a vertical plate 313 fixed on the seat plate 312, the hinge shaft part 311 is fixedly connected to the vertical plate 313, and a number of reinforcing plates 314 are fixed between the vertical plate 313 and the seat plate 312.

[0034] In practice, when turning gentle curves and driving straight, the operation is no different from that of a bridge transport frame with automatic following steering function in the background technology. When preparing to turn into a sharp curve, the angle detector 51 detects the angle change, causing the alarm horn 52 to sound an alarm to remind the staff. The staff then operates the selection device to set the steering mode, loosens the nut 333, removes the bushing 332 from below, and removes the screw 331 from above, so that the hydraulic cylinder rear connecting seat 31 is disconnected from the connecting base 3. At this time, the crossbeam 2 can rotate freely, and the rear hydraulic trailer can complete the steering according to the road conditions.

[0035] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A manual / automatic follow-steering bridge beam for heavy-duty road transport, comprising a fixed base (1), a crossbeam (2) rotatably mounted on the fixed base (1), a connecting base (3) fixedly mounted on the rear side of the fixed base (1), a hydraulic cylinder rear connecting seat (31) fixedly mounted on the connecting base (3), and a hydraulic cylinder front connecting seat (21) fixedly connected to the crossbeam (2), wherein two parallel follow-steering hydraulic cylinders (4) are installed between the hydraulic cylinder rear connecting seat (31) and the hydraulic cylinder front connecting seat (21), characterized in that: It also includes an angle limit alarm device (5) located on one side of the connecting base (3), and the rear connecting seat (31) of the oil cylinder is detachably connected to the connecting base (3).

2. The large-scale highway transport bridge beam with manual / automatic steering as described in claim 1, characterized in that: The angle limit alarm device (5) includes an angle detector (51) and an alarm horn (52). The angle detector (51) is electrically connected to the alarm horn (52). The angle detector (51) is used to detect the rotation angle of the crossbeam (2).

3. The large-scale highway transport bridge beam with manual / automatic steering as described in claim 1, characterized in that: The cylinder rear connecting seat (31) includes a hinge shaft (311) for connecting the following steering cylinder (4) and a seat plate (312) on which the hinge shaft (311) is fixedly installed. A connecting plate (32) is fixed on the connecting base (3), and the seat plate (312) and the connecting plate (32) are connected by a bolt structure (33).

4. A large-scale highway transport bridge beam with manual / automatic steering as described in claim 3, characterized in that: The seat plate (312) and the connecting plate (32) are provided with corresponding bolt through holes. The bolt structure (33) includes a screw (331), a bushing (332), and a nut (333). The screw (331) passes through the bolt through hole from top to bottom. The bushing (332) is fitted onto the screw (331) from bottom to top and fits into the bolt through hole. The nut (333) is threaded onto the bottom of the screw (331) to lock and limit the bushing (332) on the screw (331).

5. A large-scale highway transport bridge beam with manual / automatic steering as described in claim 2, characterized in that: The crossbeam (2) is fixedly installed on the rotating base (6), and the rotating base (6) is rotatably installed on the fixed base (1). The front connecting seat (21) of the oil cylinder is also fixedly installed on the rotating base (6).

6. A large-scale highway transport bridge beam with manual / automatic steering as described in claim 3, characterized in that: The cylinder rear connecting seat (31) also includes a vertical plate (313) fixed on the seat plate (312), the hinge shaft (311) is fixedly connected to the vertical plate (313), and a number of reinforcing plates (314) are fixed between the vertical plate (313) and the seat plate (312).

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