阅读说明：本技术 适用于大坡度的悬挂式单轨转向架 (Suspension type monorail bogie suitable for large gradient ) 是由 余浩伟 李忠继 徐银光 邹瑞明 杨吉忠 寇峻瑜 代丰 徐浩 于 2019-10-31 设计创作，主要内容包括：本发明公开了一种适用于大坡度的悬挂式单轨转向架,包括转向架构架,转向架构架上安装有走行轮和导向轮,在转向架构架上还安装有至少两个主动增压装置,每个主动增压装置均包括至少一个主动增压轮和施压作动装置,施压作动装置用于带动主动增压轮上下运动,从而压紧或离开轨道梁内顶面。本发明通过设置主动增压轮和施压作动装置,可有效提高列车的黏着牵引力,提高列车的爬坡能力,降低选线难度与建设成本；而设有至少两个主动增压装置,可在列车运行时同时施压,以避免偏载和轴重转移,进一步提高车轮的黏着牵引力；采用本发明的转向架,悬挂式单轨的最大安全爬坡坡度可达到30度-45度,即能够实现大坡度爬坡。(The invention discloses a suspended monorail bogie suitable for a heavy gradient, which comprises a bogie framework, wherein a walking wheel and a guide wheel are arranged on the bogie framework, at least two active supercharging devices are also arranged on the bogie framework, each active supercharging device comprises at least one active supercharging wheel and a pressing actuating device, and the pressing actuating device is used for driving the active supercharging wheels to move up and down so as to press or leave the inner top surface of a track beam. The active booster wheel and the pressure applying actuating device are arranged, so that the adhesion traction of the train can be effectively improved, the climbing capability of the train is improved, and the line selection difficulty and the construction cost are reduced; the at least two active pressurizing devices are arranged, so that pressure can be applied when the train runs, unbalance loading and axle weight transfer are avoided, and the adhesion traction of wheels is further improved; by adopting the bogie, the maximum safe climbing gradient of the suspended monorail can reach 30-45 degrees, namely, the large-gradient climbing can be realized.)

1. The utility model provides a suspension type monorail bogie suitable for heavy grade, includes bogie framework (5), install on bogie framework (5) and walk capable wheel (1) and leading wheel (6), its characterized in that still install two at least initiative supercharging devices on bogie framework (5), every initiative supercharging device all includes at least one initiative supercharging wheel (3) and exerts pressure and actuates device (2), exert pressure and actuate device (2) and be used for driving initiative supercharging wheel (3) up-and-down motion.

2. The monorail bogie for high-gradient applications as defined in claim 1, wherein each said active pressurization means further comprises a pivoted arm means (4), one end of said pivoted arm means (4) being fixedly connected to said active pressurization wheel (3) and the other end being pinned to said bogie frame (5).

3. The monorail bogie suitable for high grades of suspension, according to claim 2, characterized in that said boom means (4) is a link.

4. The monorail bogie suitable for high grades of suspension, as set forth in claim 2, characterized in that one end of said pressure actuator (2) is pinned to said boom means (4) and the other end of said pressure actuator (2) is pinned to said bogie frame (5).

5. The monorail bogie for steep grades of suspension type monorail bogies of claim 1, wherein all of said active pressurization means are arranged along the mile direction.

6. A suspended monorail bogie suitable for high grades according to claim 5, characterised in that all said active pressurisation means are arranged symmetrically on said bogie frame (5).

7. The monorail bogie suitable for high grades of suspension, according to any of claims 1-6, characterized in that said pressure-actuated means (2) are pneumatic or hydraulic cylinders.

8. A suspended monorail bogie suitable for high grades according to any of claims 1-6, characterised in that said active booster wheels (3) are rubber wheels.

Technical Field

The invention relates to the technical field of rail transit, in particular to a large-gradient suspended monorail bogie.

Background

The available adhesion coefficient of traditional track traffic is very limited, and this has undoubtedly restricted the maximum slope that the train can climb, and the maximum safe climbing slope that hangs the monorail now is six thousandths. In order to climb steep slopes of large length, a line of spread is usually provided for slowing down the longitudinal slope. Since the mileage between the two ends of the extended line is often several times of the straight-line distance, the design and construction cost of the line is increased undoubtedly, and the passing efficiency is reduced.

Disclosure of Invention

The invention aims to: aiming at the problems in the prior art, the suspension type monorail bogie suitable for the heavy gradient is provided.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a suspension type monorail bogie suitable for heavy grade, includes the bogie framework, install walking wheel and leading wheel on the bogie framework still install two at least initiative supercharging devices on the bogie framework, every initiative supercharging device all includes at least one initiative supercharging wheel and exerts pressure and actuates the device, exert pressure and actuate the device and be used for driving initiative supercharging wheel up-and-down motion to compress tightly or leave the interior top surface of track roof beam.

The working principle of the invention is as follows: under the condition that the adhesion of the train wheel rails is sufficient (such as the train runs on a flat road), the active booster wheels are retracted, and the train runs through the running wheels to reduce the running resistance; under the condition that the adhesion of the train wheel rails is insufficient (for example, when the train runs on a slope, the slope needs larger adhesion traction force), the driving pressure boosting wheels are contacted with the inner top surface of the track beam under the jacking action of the pressure applying actuating device and generate reaction force, the reaction force is transmitted to the walking wheels through the bogie frame, so that the normal force between the walking wheels and the walking surface is increased, and the increase of the normal force can be adjusted through the pressure applying actuating device.

According to the armonton-coulomb law, the available friction force of the wheel rail is in direct proportion to the normal load, so that the adhesion traction force of the train can be effectively improved, the climbing capability of the train is improved, the problem of insufficient adhesion of the wheel rail on a long and large ramp of the train is solved, and the line selection difficulty and the construction cost are reduced. And at least two active pressurizing devices are arranged, so that pressure can be applied when the train runs, unbalance loading and axle weight transfer are avoided, and the adhesion traction of the wheels is further improved.

As a preferable scheme of the present invention, each of the active supercharging devices further includes a rotating arm device, one end of the rotating arm device is fixedly connected with the active supercharging wheel, and the other end of the rotating arm device is pinned with the bogie frame. The rotating arm device is a connecting rod, and the height of the driving pressurizing wheel can be adjusted by adjusting the included angle between the rotating arm device and the bogie frame.

As a preferable scheme of the present invention, one end of the pressure-applying actuating device is connected with the rotating arm device by a pin, and the other end of the pressure-applying actuating device is connected with the bogie frame by a pin, so as to meet the requirement of small-amplitude rotation.

As a preferable aspect of the present invention, all of the active supercharging devices are arranged in a mileage direction.

As a preferred aspect of the present invention, all of the active supercharging devices are symmetrically arranged on the bogie frame.

In a preferred embodiment of the present invention, the pressure applying actuator is an air cylinder or a hydraulic cylinder.

As a preferable scheme of the present invention, the active pressure increasing wheel is a rubber wheel.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

the active booster wheel and the pressure applying actuating device are arranged, so that the adhesion traction of the train can be effectively improved, the climbing capability of the train is improved, the problem of insufficient wheel rail adhesion of the train on a long and large ramp is solved, and the line selection difficulty and the construction cost are reduced. And at least two active pressurizing devices are arranged, so that pressure can be applied when the train runs, unbalance loading and axle weight transfer are avoided, and the adhesion traction of the wheels is further improved. By adopting the bogie, the maximum safe climbing gradient of the suspended monorail can reach 30-45 degrees, namely, the large-gradient climbing can be realized.

Drawings

FIG. 1 is an elevation view of the present invention adapted for use with a steep grade overhead monorail bogie.

Fig. 2 is a top view of the present invention adapted for use with a steep grade overhead monorail bogie.

FIG. 3 is a schematic view of the operation of the present invention for a steep grade overhead monorail bogie.

Fig. 4 is a schematic diagram of the operation of the present invention on a slope suitable for use with a steep grade overhead monorail bogie.

The labels in the figure are: 1-walking wheels, 2-pressure-applying actuating devices, 3-driving pressure-increasing wheels, 4-rotating arm devices, 5-bogie frames, 6-guide wheels, 7-track beams and 71-track beam inner top surfaces.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-2, the suspended monorail bogie suitable for the heavy gradient comprises a bogie frame 5, wherein a traveling wheel 1 and a guide wheel 6 are installed on the bogie frame 5, and two active supercharging devices are also installed on the bogie frame 5 and are symmetrically arranged on the bogie frame 5 along the mileage direction.

Each of the active supercharging devices comprises at least one active supercharging wheel 3, a pressure application actuating device 2 and a rotating arm device 4.

The driving booster wheel 3 is a rubber wheel and is used for abutting against the inner top surface 71 of the track beam 7. The track beam 7 of the suspended monorail is generally a box beam inside which the train runs, and the inner top surface is the inner side surface of the top of the box beam, i.e. the plane in contact with the driving booster wheels 3.

The rotating arm device 4 is connected, one end of the rotating arm device is fixedly connected with the driving pressure increasing wheel 3, and the other end of the rotating arm device is in pin joint with the bogie frame 5.

The pressure applying actuating device 2 is a cylinder or a hydraulic cylinder and is used for driving the driving pressure increasing wheel 3 to move up and down. One end of the pressure-applying actuating device 2 is connected with the rotating arm device 4 in a pin joint mode, and the other end of the pressure-applying actuating device 2 is connected with the bogie frame 5 in a pin joint mode.

As shown in fig. 3, in the case of sufficient adhesion of the train wheel rail (for example, when the train runs on a flat road), the active booster wheel 3 is retracted, and the train runs through the running wheels 1 to reduce the running resistance.

As shown in fig. 4, in the case of insufficient adhesion of the train wheel and rail (for example, when the train runs on a slope, the slope needs a larger adhesion traction force), the active booster wheel 3 contacts with the inner top surface 71 of the track beam under the jacking action of the pressure-applying actuating device 2 and generates a reaction force, and the reaction force is transmitted to the running wheel 1 through the bogie frame 5, so that the normal force between the running wheel 1 and the running surface is increased, and the increase of the normal force can be adjusted through the pressure-applying actuating device 2.

According to the armonton-coulomb law, the available friction force of the wheel rail is in direct proportion to the normal load, so that the adhesion traction force of the train can be effectively improved, the climbing capability of the train is improved, the problem of insufficient adhesion of the wheel rail on a long and large ramp of the train is solved, and the line selection difficulty and the construction cost are reduced.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.