Steel bar transfer flat car for box girder precast beam yard

Abstract

The utility model belongs to the field of large component transportation tools in a field, and particularly relates to a box girder precast beam field reinforcing steel bar transfer flat car. Comprising a vehicle body, the top surface of the vehicle body is a bearing plane, four wheels are arranged on the bottom surface of the vehicle body, the four wheels comprise two driving wheels and two steering wheels, the two driving wheels are connected with independent driving mechanisms respectively, and the two steering wheels are connected with the vehicle body through steering shafts respectively; the two driving wheels are located at two ends of the first line segment, and the two steering wheels are located at two ends of the second line segment; the vehicle body enables the steering wheel to swing to complete steering through the rotating speed difference of the two driving wheels, and the vehicle body moves linearly when the rotating speeds of the two driving wheels are synchronous; the box girder precast beam yard reinforcing steel bar transfer flat car is simple and reasonable in structure, can easily achieve transportation of reinforcing steel bar semi-finished products, can be recycled, greatly reduces labor intensity and construction cost, and improves work intensity.

Description

Technical Field

[0001] The utility model belongs to the field of large-scale component transportation tools in a site, and specifically relates to a steel bar transport flatbed truck for box girder prefabricated beam sites. Background Art

[0002] With the improvement of the standardized management level and quality level of railway construction, the planning and technical level of box girder prefabrication yards have gradually improved. Especially with the proposal of the national railway intelligent construction goal, prefabricated beam construction has gradually moved towards informatization and intelligence. However, there is still a situation where steel bar processing is mainly mechanized and steel bar transportation is mainly carried out by vehicles supplemented by manual labor. Prefabricated beams use a large amount of steel bars, and the amount of steel bars for a large prefabricated box girder can reach more than 70t. When tying steel bars, semi-finished steel bars need to be transported from the distribution center to the tyre frame one by one, relying on vehicles supplemented by manual transportation, which is labor-intensive and inefficient. Utility Model Content

[0003] The utility model aims to solve the problem of high labor intensity in transporting steel bars in the current process of prefabricating beams.

[0004] The utility model provides the following technical scheme: a steel bar transfer flatbed truck for box girder prefabricated beam yard, comprising a vehicle body, the top surface of the vehicle body being a load-bearing plane, four wheels being arranged on the bottom surface of the vehicle body, the four wheels comprising two driving wheels and two steering wheels, the two driving wheels being respectively connected to an independent driving mechanism, the two steering wheels being respectively connected to the vehicle body through a steering shaft, and the steering shaft being perpendicular to the top surface of the vehicle body; the two driving wheels being located at both ends of a first line segment, the two steering wheels being located at both ends of a second line segment, the projections of the first line segment and the second line segment on the top surface of the vehicle body being parallel and the midpoints being aligned; the vehicle body completes steering by swinging the steering wheel through the speed difference of the two driving wheels, and the vehicle body moves in a straight line when the speeds of the two driving wheels are synchronized.

[0005] Furthermore, it also includes a swing beam, a support shaft is installed on the bottom surface of the vehicle body, the support shaft is parallel to the top surface of the vehicle body, the middle of the swing beam is connected to the support shaft, two steering wheels are installed at both ends of the swing beam, and the two steering wheels push the swing beam to swing with the support shaft as the fulcrum as the road surface rises and falls.

[0006] Furthermore, the driving mechanism includes a motor and a reducer, which are fixed to the bottom of the vehicle body, the motor is powered by a battery on the bottom of the vehicle body, the rotating shaft of the motor is connected to the input end of the reducer, and the output end of the reducer is connected to the axle of the driving wheel;.

[0007] Furthermore, the driving wheel includes an axle, a hub and rubber, the rubber is wrapped around the hub, the axle is connected to the axial hole on the hub by a key, the two ends of the axle pass through the hub and are connected to the bearing seat on the vehicle body, and one end of the axle passes through the bearing seat to connect to the reducer.

[0008] Furthermore, the vehicle body includes a vehicle body frame assembled from channel steels, the top and bottom surfaces of the vehicle body frame are welded with steel plates, baffles are arranged around the bottom surface of the vehicle body, and the driving wheels and steering wheels are located inside the baffles.

[0009] Furthermore, an emergency brake device, an audible and visual warning light and a main switch control device are installed on the side of the vehicle body.

[0010] Furthermore, the swing beam includes a middle sinking section and raised sections on both sides, the middle of the sinking section is connected to the support shaft, and two steering wheels are installed at the bottom of the raised sections on both sides.

[0011] Compared with the prior art, the advantages of the present invention are:

[0012] The utility model provides a steel bar transport flatbed truck for box beam prefabrication yard, which has a simple and reasonable structure, can easily transport semi-finished steel bars, and can be recycled, greatly reducing labor intensity and construction costs, and improving work intensity; two steering wheels are installed on a swingable support shaft as front wheels, the support shaft is installed on the vehicle body, and two driving wheels are directly installed on the vehicle body as rear wheels. When the road surface is bumpy, the two steering wheels push the swing beam to swing with the support shaft as the fulcrum along with the ups and downs of the road surface, always ensuring that the four wheels are grounded, and enhancing the stability of the steel bar transport flatbed truck in straight-line driving and steering. The steering is made by using the wheel speed difference of the two driving wheels, without a complicated steering mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the front view of the steel bar transfer flatbed truck in the box girder precast yard;

[0014] Figure 2 This is the right side view of the steel bar transfer flatbed truck in the box girder precast yard;

[0015] Figure 3 This is a bottom view of the steel bar transfer flatbed truck in the box girder precast yard;

[0016] Figure 4 is a structural schematic diagram of the driving mechanism;

[0017] Figure 5 A schematic diagram of the vehicle body structure.

[0018] In the figure: 1-body; 2-driving wheel; 2.1-axle; 2.2-wheel hub; 2.3-rubber; 3-steering wheel; 4-steering shaft; 5-support shaft; 6-swing beam; 7-motor; 8-reducer; 9-bearing seat; 10-baffle; 11-emergency brake device; 12-sound and light warning lamp; 13-main switch control device. DETAILED DESCRIPTION

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] like Figure 1 , Figure 2 , Figure 3 As shown: a steel bar transfer flatbed truck for box girder prefabricated beam yard, comprising a vehicle body 1, the top surface of the vehicle body 1 is a load-bearing plane, four wheels are arranged on the bottom surface of the vehicle body 1, the four wheels include two driving wheels 2 and two steering wheels 3, the two driving wheels 2 are respectively connected to an independent driving mechanism, the two steering wheels 3 are respectively connected to the vehicle body 1 through a steering shaft 4, and the steering shaft 4 is perpendicular to the top surface of the vehicle body 1; the two driving wheels 2 are located at both ends of a first line segment, and the two steering wheels 3 are located at both ends of a second line segment, and the projections of the first line segment and the second line segment on the top surface of the vehicle body 1 are parallel and the midpoints are aligned; the vehicle body 1 completes steering by swinging the steering wheel 3 through the speed difference of the two driving wheels 2, and the vehicle body 1 moves in a straight line when the speeds of the two driving wheels 2 are synchronized; steering is performed by utilizing the wheel speed difference of the two driving wheels 2, and there is no complicated steering mechanism.

[0021] If the four wheels are rigidly connected to the vehicle body 1, some wheels will be suspended in the air when the road surface is uneven, and the steel bar transport flatbed truck will be unstable. If a common elastic shock-absorbing mechanism is used, the vehicle body 1 will tilt to one side when the weight on the vehicle body 1 is unevenly distributed, and the elastic shock-absorbing mechanism is relatively complex. Therefore, the present embodiment is equipped with a swing beam 6, and a support shaft 5 is installed on the bottom surface of the vehicle body 1. The support shaft 5 is parallel to the top surface of the vehicle body 1. The middle of the swing beam 6 is connected to the support shaft 5. Two steering wheels 3 are installed at both ends of the swing beam 6. When the road surface is bumpy, the two steering wheels 3 push the swing beam 6 to swing with the support shaft 5 as the fulcrum as the road surface rises and falls, ensuring that the four wheels are always on the ground.

[0022] The swing beam 6 includes a middle sinking section and raised sections on both sides. The middle of the sinking section is connected to the support shaft 5, and two steering wheels 3 are installed at the bottom of the raised sections on both sides. The bending design of the swing beam 6 can reduce the height of the steel bar transfer flatbed truck.

[0023] like Figure 4 As shown: the driving mechanism includes a motor 7 and a reducer 8, which are fixed to the bottom surface of the vehicle body 1, the motor 7 is powered by a battery on the bottom surface of the vehicle body 1, the rotating shaft of the motor 7 is connected to the input end of the reducer 8, and the output end of the reducer 8 is connected to the wheel axle 2.1 of the driving wheel 2;.

[0024] The driving wheel 2 includes an axle 2.1, a wheel hub 2.2 and a rubber 2.3. The rubber 2.3 is wrapped around the wheel hub 2.2. The axle 2.1 is connected to the axial hole on the wheel hub 2.2 through a key. The two ends of the axle 2.1 pass through the wheel hub 2.2 and are connected to the bearing seat 9 on the vehicle body 1. One end of the axle 2.1 passes through the bearing seat 9 and is connected to the reducer 8.

[0025] High-strength polyurethane wheels are used as the driving wheels 2 and the steering wheels 3, which frees the rail vehicle from dependence on ground rails, does not damage infrastructure, and allows the vehicle to travel freely on the ground.

[0026] The vehicle body 1 includes a vehicle body frame assembled by channel steel 1.1, the top and bottom surfaces of the vehicle body frame are welded with steel plates, a baffle 10 is arranged around the bottom surface of the vehicle body 1, and the driving wheel 2 and the steering wheel 3 are located inside the baffle 10. The vehicle body 1 has sufficient static and dynamic rigidity to ensure that the steel bar transfer flatbed truck has good dynamic quality.

[0027] like Figure 5 As shown: the side of the vehicle body 1 is equipped with an emergency brake device 11, an audible and visual alarm lamp 12 and a main switch control device 13; the specification of the audible and visual alarm lamp 12 is DC24V-48V; the specification of the emergency brake device 11 is XB2BS542C. One audible and visual alarm lamp 12 is set at the front, rear, left and right of the vehicle body 1 to remind people to avoid during transportation. One emergency brake device 11 is set at the front, rear, left and right of the vehicle body 1. In case of emergency, the emergency brake device 11 can be shot in time to stop the steel bar transport flatbed truck.

[0028] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A steel bar transfer flatbed truck for box girder prefabrication yard, characterized by: The vehicle comprises a vehicle body (1), the top surface of the vehicle body (1) being a load-bearing plane, and four wheels being arranged on the bottom surface of the vehicle body (1), the four wheels comprising two driving wheels (2) and two steering wheels (3), the two driving wheels (2) being respectively connected to an independent driving mechanism, the two steering wheels (3) being respectively connected to the vehicle body (1) via a steering shaft (4), and the steering shaft (4) being perpendicular to the top surface of the vehicle body (1); the two driving wheels (2) being located at the two ends of a first line segment, and the two steering wheels (3) being located at the two ends of a second line segment, and the projections of the first line segment and the second line segment on the top surface of the vehicle body (1) being parallel and their midpoints being aligned; the vehicle body (1) makes the steering wheel (3) swing to complete steering through the speed difference of the two driving wheels (2), and the vehicle body (1) moves in a straight line when the speeds of the two driving wheels (2) are synchronized.

2. A steel bar transfer flatbed truck for box girder prefabrication yard according to claim 1, characterized in that: The vehicle also comprises a swing beam (6), a support shaft (5) is installed on the bottom surface of the vehicle body (1), the support shaft (5) is parallel to the top surface of the vehicle body (1), the middle of the swing beam (6) is connected to the support shaft (5), two steering wheels (3) are installed at both ends of the swing beam (6), and the two steering wheels (3) push the swing beam (6) to swing with the support shaft (5) as a fulcrum as the road surface rises and falls.

3. A steel bar transfer flatbed truck for box girder prefabrication yard according to claim 1 or 2, characterized in that: The driving mechanism comprises a motor (7) and a reducer (8), wherein the motor (7) and the reducer (8) are fixed to the bottom surface of the vehicle body (1), the motor (7) is powered by a storage battery on the bottom surface of the vehicle body (1), the rotating shaft of the motor (7) is connected to the input end of the reducer (8), and the output end of the reducer (8) is connected to the wheel axle (2.1) of the driving wheel (2).

4. The steel bar transfer flatbed truck for box girder prefabrication yard according to claim 3, characterized in that: The driving wheel (2) comprises a wheel axle (2.1), a wheel hub (2.2) and a rubber (2.3); the rubber (2.3) is wrapped around the wheel hub (2.2); the wheel axle (2.1) and the shaft hole on the wheel hub (2.2) are connected via a key; both ends of the wheel axle (2.1) pass through the wheel hub (2.2) and are connected to a bearing seat (9) on the vehicle body (1); one end of the wheel axle (2.1) passes through the bearing seat (9) and is connected to a reducer (8).

5. The steel bar transfer flatbed truck for box girder prefabrication yard according to claim 1, characterized in that: The vehicle body (1) comprises a vehicle body frame assembled from channel steels (1.1), the top and bottom surfaces of the vehicle body frame being welded with steel plates, a baffle (10) being arranged around the bottom surface of the vehicle body (1), and the driving wheels (2) and the steering wheels (3) being located on the inner side of the baffle (10).

6. The steel bar transfer flatbed truck for box girder prefabrication yard according to claim 3, characterized in that: An emergency brake device (11), an audible and visual warning light (12) and a main switch control device (13) are installed on the side of the vehicle body (1).

7. The steel bar transport flatbed truck for box girder prefabrication yard according to claim 2, characterized in that: The swing beam (6) comprises a middle sinking section and raised sections on both sides, the middle of the sinking section is connected to the support shaft (5), and two steering wheels (3) are installed at the bottom of the raised sections on both sides.

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