阅读说明：本技术 一种轨路两用八驱牵引机车浮动桥装置及使用方法 (Floating bridge device of track dual-purpose eight-wheel-drive traction locomotive and use method ) 是由 岳公华 岳浩然 曹平先 岳亮 朱绍华 赵克卿 董元珂 于 2020-05-20 设计创作，主要内容包括：本发明专利属于轨路两用牵引机车技术领域,具体涉及一种轨路两用八驱牵引机车浮动桥装置及使用方法,所述八驱牵引机车的前车架设有两对驱动轮,所述两对驱动轮分别为前轮一和前轮二,且所述前轮一在导向轮和前轮二之间；所述浮动桥装置是对所述前轮一的驱动桥的升降装置,包括固定板、升降臂和液压缸。本发明的优点和积极效果在于：使得轨路两用八驱牵引机车充分发挥其优点：在钢轨上有高牵引力、在湿滑/崎岖路面上有高通过性,同时在路面行驶时仍具有相当的机动性,做到扬长避短,更好的满足牵引需求。(The invention belongs to the technical field of dual-purpose traction locomotives for railways, and particularly relates to a floating bridge device of a dual-purpose eight-wheel-drive traction locomotive for railways and a using method thereof, wherein a front frame of the eight-wheel-drive traction locomotive is provided with two pairs of driving wheels, the two pairs of driving wheels are a first front wheel and a second front wheel respectively, and the first front wheel is arranged between a guide wheel and the second front wheel; the floating bridge device is a lifting device of a driving axle of the first front wheel and comprises a fixing plate, a lifting arm and a hydraulic cylinder. The invention has the advantages and positive effects that: the rail dual-purpose eight-drive traction locomotive fully exerts the advantages of the rail dual-purpose eight-drive traction locomotive: the steel rail has high traction force, high trafficability on a slippery/rugged road surface and considerable maneuverability when running on the road surface, so that advantages and disadvantages are brought forward, and the traction requirement is better met.)

1. The floating axle device of the eight-wheel-drive traction locomotive for the rail and the road is characterized in that a front frame (11) of the eight-wheel-drive traction locomotive is provided with two pairs of driving wheels, the two pairs of driving wheels are a first front wheel (12) and a second front wheel (13), and the first front wheel (12) is arranged between a guide wheel and the second front wheel (13); the floating bridge device is a lifting device of a drive axle (1) of a front wheel I (12), and comprises a fixed plate (5), a lifting arm (2) and a hydraulic cylinder (3), wherein the fixed plate (5) is positioned above two ends of the drive axle (1) and fixedly connected with the drive axle (1), the lower end of the lifting arm (2) is fixedly connected with the upper surface of the fixed plate (5), each of the two longitudinal sides of the lifting arm (2) is respectively provided with one hydraulic cylinder (3), and the lower end of a piston (6) of the hydraulic cylinder (3) is in pin joint with the upper surface of the fixed plate (5).

2. A floating axle arrangement of a rail-bound dual-purpose eight-wheel-drive tractor according to claim 1, characterized in that the lifting arm (2) slides up and down in the guide frame (4).

3. The floating axle device of the rail road dual-purpose eight-wheel drive traction locomotive according to claim 2, characterized in that the guide frame (4) is fixedly connected with the inner wall of the front frame (11), lug plates are arranged on two longitudinal sides of the upper end of the guide frame (4), and the upper end of the hydraulic cylinder (3) is in pin joint with the guide frame (4) through the lug plates.

4. The floating axle device of the rail road dual-purpose eight-wheel drive traction locomotive according to claim 1, characterized in that the lower surface of the fixing plate (5) is welded with the upper surfaces of two ends of the drive axle (1), and a wing plate (9) is arranged below the fixing plate (5) and is fixedly connected with the side surface of the drive axle (1).

5. The floating axle device of the rail road dual-purpose eight-wheel drive traction locomotive according to claim 1, wherein the lower end of the piston (6) is provided with an ear plate (7), the longitudinal sides of the upper surface of the fixed plate (5) are provided with ear plates (8), and the ear plates (7) and the ear plates (8) are connected through pin shafts.

6. The floating axle device of the rail road dual-purpose eight-wheel drive traction locomotive is characterized in that the guide frame (4) and the upper end of the lifting arm (2) are provided with pin holes (10).

7. The use method of the floating axle device of the dual-rail eight-wheel tractor according to any one of the claims 1 to 6, characterized in that when the dual-rail eight-wheel tractor runs on the steel rail, the piston (6) of the hydraulic cylinder (3) is at the lowest position, the lifting arm (2) and the fixed plate (5) are driven to be at the lowest position, the front wheel I (12) and the drive axle (1) are not lifted, and the rubber tire of the front wheel I (12) is rubbed with the surface of the steel rail;

when the rail-road dual-purpose eight-wheel-drive traction locomotive runs straight on a road surface, the front wheel I (12) and the drive axle (1) are not lifted, and a rubber tire of the front wheel I (12) is rubbed with the ground;

before the rail-road dual-purpose eight-wheel-drive traction locomotive turns on the road surface, the piston (6) of the hydraulic cylinder (3) is positioned at the uppermost position to drive the lifting arm (2) and the fixing plate (5) to be positioned at the uppermost position, at the moment, the first front wheel (12) and the drive axle (1) are lifted, and the rubber tire of the first front wheel (12) is not in contact with the road surface.

Technical Field

The invention belongs to the technical field of dual-purpose rail traction locomotives, and particularly relates to a floating bridge device of a dual-purpose eight-wheel-drive rail traction locomotive and a using method thereof.

Background

The series of products of the track-road dual-purpose tractor are widely applied to special railway lines such as electric power, metallurgy, chemical industry, building materials, ports, logistics, small goods yards and the like, and production and construction units of railway station sections, locomotive service sections, motor train sections, subways and engineering bureaus, the traditional traction mode in the past is replaced, and a brand new design concept makes some users surprise and exceed the value of things.

The running road surface of the rail and road dual-purpose traction locomotive is often bumpy, multi-slope, wet and slippery ground with machine oil or rain, snow, multi-bend and the like, the working environment is severe, the current rail and road dual-purpose traction locomotive is driven by two wheels or four wheels, and the situations of slipping, being trapped and unable to pass through barriers, poor climbing capability and the like often occur when the road surface runs; in addition, the contact friction area between the two-wheel drive or four-wheel drive rail dual-purpose tractor and the road surface/steel rail is small, the friction force is small, the capability of an engine cannot be fully exerted, and the traction capability is not favorably improved.

Some enterprises research and develop a rail-road dual-purpose eight-wheel-drive traction locomotive for solving the problems, but the eight-wheel-drive traction locomotive has large distance between the front axle and the rear axle, large turning radius and poor maneuverability when turning on a road surface.

Disclosure of Invention

In order to solve the problems of the rail dual-purpose eight-wheel-drive traction locomotive, the invention adopts the technical scheme that: a floating axle device of an eight-wheel-drive traction locomotive for rail and road is characterized in that a front frame of the eight-wheel-drive traction locomotive is provided with two pairs of driving wheels, the two pairs of driving wheels are a first front wheel and a second front wheel respectively, and the first front wheel is arranged between a guide wheel and the second front wheel; the floating bridge device is a lifting device of a drive axle of the front wheel I and comprises a fixed plate, lifting arms and hydraulic cylinders, wherein the fixed plate is positioned above two ends of the drive axle and fixedly connected with the drive axle, the lower ends of the lifting arms are fixedly connected with the upper surface of the fixed plate, one hydraulic cylinder is respectively arranged on each of the two longitudinal sides of each lifting arm, and the lower ends of the pistons of the hydraulic cylinders are in pin joint with the upper surface of the fixed plate.

Preferably, the lifting arm slides up and down in the guide frame.

Preferably, the guide frame is fixedly connected with the inner wall of the front frame, lug plates are arranged on two longitudinal sides of the upper end of the guide frame, and the upper end of the hydraulic cylinder is in pin joint with the guide frame through the lug plates.

Preferably, the lower surface of the fixing plate is welded with the upper surfaces of two ends of the drive axle, and a wing plate is arranged below the fixing plate and fixedly connected with the side surface of the drive axle.

Preferably, the lower end of the piston is provided with an ear plate, the two longitudinal sides of the upper surface of the fixing plate are provided with ear plates, and the ear plate at the lower end of the piston and the ear plate at the upper surface of the fixing plate are in pin joint through a pin shaft.

Preferably, the guide frame and the upper end of the lifting arm are provided with pin holes.

The use method of the floating bridge device of the dual-purpose eight-wheel drive traction locomotive for the rail comprises the steps that when the dual-purpose eight-wheel drive traction locomotive for the rail runs on a steel rail, a piston of a hydraulic cylinder is located at the lowermost position to drive a lifting arm and a fixing plate to be located at the lowermost position, at the moment, a first front wheel and a drive axle are not lifted, and a rubber tire of the first front wheel rubs with the surface of the steel rail;

when the rail-road dual-purpose eight-wheel-drive traction locomotive runs straight on a road surface, the front wheel I and the drive axle are not lifted, and a rubber tire of the front wheel I rubs with the ground;

before the rail-road dual-purpose eight-wheel-drive traction locomotive turns on the road surface, the piston of the hydraulic cylinder is positioned at the uppermost position, the lifting arm and the fixing plate are driven to be positioned at the uppermost position, the front wheel I and the drive axle are lifted at the moment, and the rubber tire of the front wheel I is not in contact with the road surface.

The invention has the advantages and positive effects that: the rail dual-purpose eight-drive traction locomotive fully exerts the advantages of the rail dual-purpose eight-drive traction locomotive: the steel rail has high traction force, high trafficability on a slippery/rugged road surface and considerable maneuverability when running on the road surface, so that advantages and disadvantages are brought forward, and the traction requirement is better met.

Drawings

In order to more clearly illustrate the technical scheme of the embodiment of the invention, the drawings used in the description of the embodiment will be briefly introduced below, fig. 1 is a schematic diagram of a floating bridge device of a rail dual-purpose eight-drive locomotive, fig. 2 is a schematic diagram of a floating bridge device of another rail dual-purpose eight-drive locomotive, fig. 3 is a schematic diagram of a rail dual-purpose eight-drive locomotive applying the floating bridge device, fig. 4 is an upper and lower structural diagram of a fixed plate in the floating bridge device of the rail dual-purpose eight-drive locomotive, and fig. 5 is a schematic diagram of a lifting arm in the floating bridge device of the rail dual-purpose eight-drive locomotive.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.