阅读说明：本技术 一种具有备用制动装置的牵引电机车 (Traction electric locomotive with spare braking device ) 是由 陈燕珊 于 2019-11-27 设计创作，主要内容包括：本发明是一种具有备用制动装置的牵引电机车,所述的电机车的牵引电机通过传动轴以及减速机将动力连接到车轮,并在所述的车轮上设置有至少一套闸瓦制动装置,其特征在于：在所述的传动轴、牵引电机的输出轴或者减速机的输入轴上固定套设有一个备用制动轮毂,并在所述的备用制动轮毂上设置有备用闸瓦制动装置。其中,所述的备用闸瓦制动装置包括两根制动揺臂,两根制动摇臂分别设置在所述的备用制动轮毂的两侧,每根制动摇臂朝向所述的备用制动轮毂的位置各设置有一个制动闸瓦,各制动摇臂的一端枢接固定,两根制动摇臂的另一端之间通过一个伸缩动力装置相连。通过増设一个备用制动装置,提高电机车制动可靠性以及行驶安全性。(The invention relates to a traction electric locomotive with a spare braking device, wherein a traction motor of the electric locomotive is connected with a wheel through a transmission shaft and a speed reducer, and the wheel is provided with at least one set of brake shoe braking device, which is characterized in that: the transmission shaft, the output shaft of the traction motor or the input shaft of the speed reducer are fixedly sleeved with a standby brake hub, and a standby brake shoe braking device is arranged on the standby brake hub. The spare brake shoe braking device comprises two brake swing arms, the two brake swing arms are arranged on two sides of the spare brake hub respectively, a brake shoe is arranged at the position, facing the spare brake hub, of each brake swing arm, one end of each brake swing arm is pivoted and fixed, and the other ends of the two brake swing arms are connected through a telescopic power device. Through increasing for one equipment arresting gear, improve electric locomotive braking reliability and driving safety nature.)

1. The utility model provides a traction electric locomotive with reserve arresting gear, the traction motor of electric locomotive pass through transmission shaft and speed reducer with power connection to wheel to be provided with at least one set of brake shoe brake dress on the wheel, its characterized in that: the transmission shaft, the output shaft of the traction motor or the input shaft of the speed reducer are fixedly sleeved with a standby brake hub, and a standby brake shoe braking device is arranged on the standby brake hub.

2. The electric traction locomotive with a backup braking device according to claim 1, characterized in that: the spare brake shoe braking device comprises two braking rocker arms, the two braking rocker arms are respectively arranged on two sides of the spare brake hub, each braking rocker arm faces to a braking brake shoe arranged on a position bean of the spare brake hub, one end of each braking rocker arm is pivoted and fixed, and the other ends of the two braking rocker arms are connected through an extending power assembly bean.

3. The electric traction locomotive with a backup braking device according to claim 2, characterized in that: the telescopic power device comprises an air brake cylinder, the air brake cylinder is divided into a rodless cavity and a rod cavity by a piston, and an inflation gas path is communicated with the rodless cavity; at least one spring is arranged in the rod cavity, and two ends of the spring are respectively connected with the tertiary body of the air brake cylinder and the piston.

4. The electric traction locomotive with a backup braking device according to claim 2, characterized in that: two supports are fixedly arranged on the electric locomotive, and one ends of the two braking rocker arms are respectively pivoted on one support.

Technical Field

The invention relates to a traction electric locomotive with a spare braking device, in particular to the spare braking device.

Background

The accumulator industrial and mining electric locomotive used in tunnel construction is a vehicle used on the rail, and because the friction coefficient between the steel wheel and the steel rail is small, the self weight of the locomotive must be made very large if enough traction force is obtained, the weight of the whole train is about 200 tons usually due to the self weight of the accumulator industrial and mining electric locomotive and the loading load pulled by the locomotive, and moreover, the existing accumulator industrial and mining electric locomotive is only provided with a set of brake shoe braking devices on the locomotive wheels. In this case, the brake shoe brake of the locomotive causes the brake shoe to wear faster, so the normal service life of the brake shoe is shorter, and usually the adjustment of the brake shoe clearance is performed once in a short few days. Therefore, according to the ever-obvious technical feasibility and the extremely urgent need of using safety pillars, the invention provides a double-brake battery industrial and hydraulic electric locomotive, establishes an optimal protective brake system, and is a problem to be solved urgently.

Disclosure of Invention

The traction electric locomotive with the standby braking device is arranged for the purpose. When the brake shoe of the running wheel of the locomotive is not applied or fails, the brake device of the traction motor can be started to serve as a set of spare brake device, and the construction safety of the locomotive can be completely guaranteed by braking.

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

the utility model provides a traction electric locomotive with reserve arresting gear, the traction motor of electric locomotive pass through the transmission shaft and stop the speed machine and connect power to the wheel to be provided with at least one set of brake shoe arresting gear on the wheel which characterized in that: the spare brake shoe braking device comprises two brake rocker arms, the two brake rocker arms are respectively arranged on two sides of the spare brake hub, a brake shoe is respectively arranged at the position, facing the spare brake hub, of each brake rocker arm, one end of each brake rocker arm is fixed in a pivoted mode, and the other ends of the two brake rocker arms are connected through an extending end power device. In a better technical scheme, the telescopic power stubble loading device comprises an air brake cylinder, a cylinder body of the air brake cylinder is divided into a rodless cavity and a rod cavity by a piston, and an inflation gas circuit is communicated with the rodless cavity; at least one spring is arranged in the rod cavity, and two ends of the spring are respectively connected with the ir body and the piston of the air brake cylinder. In a preferred technical scheme, rich is fixedly arranged on the electric locomotive and provided with two supports, and one ends of the two braking rocker arms are respectively pivoted on one support.

Compared with the prior art, the invention adopting the technical scheme has the advantages that: on the one hand, a safety problem is solved; on the other hand, the brake device is a high-speed end brake device, namely a device for braking at the input shaft end of the speed-guard device, so that under the condition of generating the same braking force for a locomotive and a load, the braking force required by the brake device with covering is only L/i (i is the reduction ratio of the speed reducer ) of the braking force of the existing device.

Drawings

FIG. 1 is a schematic illustration of the transmission system of the present invention;

FIG. 2 is a schematic view of the construction of the backup brake assembly of the present invention;

fig. 3 is a schematic view of the internal structure of the air brake cylinder of the present invention.

Detailed Description

Firstly, referring to the schematic diagram of the transmission system of the present invention shown in fig. 1, an output shaft 11 of a traction motor 1 of an electric locomotive is connected to an input shaft 31 of a speed reducer 3 through a transmission shaft 2, and an output shaft 32 of the speed reducer 3 is further connected to a wheel 4 of the electric locomotive, so as to transmit the power of the traction motor 1 to the wheel 4 for use. In the same way as the prior art, at least one set of brake shoe brake device is arranged on the wheel 4 for braking, and the brake shoe brake device is the prior art and is not shown in the figure, and in order to improve the braking reliability of the electric locomotive, a set of spare brake device 5 is additionally arranged. As shown in FIGS. 1 and 2, a spare brake hub 51 is fixedly sleeved on the output shaft 11 of the traction motor 1, and a spare brake shoe brake device is arranged on the spare brake hub 51. of course, the spare brake hub 51 can be sleeved on the transmission shaft 2, or any position from the output shaft 11 of the motor to the input shaft 31 of the reducer 3, and the braking effect is the same. As for the specific structure of the backup brake shoe brake device, please refer to fig. 2, which is a preferred embodiment thereof, two support bases 52 are fixedly arranged on the electric locomotive, one end of each of two brake rocker arms 53 is pivotally connected to one of the support bases 52, the other ends of the two brake rocker arms 53 are connected by a stretching power device JL54, the two brake rocker arms 53 are respectively arranged at two sides of the backup brake wheel 51, and each brake rocker arm 53 is provided with a brake shoe 55 at a position facing the backup brake wheel hub 51. In this configuration, the motor is controlled to brake or release by actuating the power extension 54 so that the brake shoes 55 are either in close proximity to or away from the spare brake hub 51. the power extension 54 is preferably in the form of a vented brake shoe cylinder, as described in more detail below.

As shown in fig. 3, the telescopic power unit 54 comprises an air brake cylinder 60, the nail body 6 of the air brake cylinder 60 is divided into a rodless cavity 63 and a rod cavity 64 by a piston 62, and a charging air passage 65 is communicated with the rodless cavity 63; at least one spring 66 is disposed in the rod chamber 64, and both ends of the spring 66 are connected to the pin body 61 and the piston 62 of the air brake cylinder 60, respectively. When the brake needs to be released, high-pressure gas in the inflation gas circuit 65 is introduced into the rodless cavity 63, the spring 66 retracts along with the lifting of the gas pressure in the rodless cavity 63, the piston 62 moves to the right, and the brake rocker arm 53 drives the anti-robbing inter-shoe 55 to leave the spare brake hub 51, so that the brake releasing action is realized; when the shaving cart needs to be braked, the air inflation circuit 65 is closed, the rodless cavity 63 is communicated with the atmospheric pressure, the spring 66 returns to the original length, the piston 62 moves leftwards, and the brake shoe 55 is pressed on the spare brake hub 5, so that the braking effect is achieved.

According to the technical scheme, the spare brake hub 51 is sleeved on the output shaft 11 of the traction motor 1, and when the brake shoe 55 holds the spare brake hub 51, the motor is actually braked, so that the friction force required by the same braking force of the spare brake device 5 is greatly reduced due to the speed reduction multiplying factor of the speed reducer 3, and the generated braking effect is obviously increased relatively, so that the invention has the following advantages:

(1) the abrasion degree of the brake shoe is obviously reduced;

(2) the braking effect is obviously increased;

(3) the service life of each part of the brake mechanism is greatly prolonged;

⑷, the braking safety is greatly improved.

The foregoing description is illustrative of the present invention and is not to be construed as limiting thereof, as those of ordinary skill in the art will appreciate

It will be understood by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope defined in the claims, but will still fall within the scope of the invention.