CN204323300U - Electric locomotive brake shoe partial wear setting device - Google Patents

Abstract

The utility model relates to a brake shoe eccentric wear adjustment device for electric vehicles, which is characterized in that it comprises an annular connecting rod, an adjusting nut is built in the front end of the annular connecting rod and an adjusting screw is threadedly connected with the adjusting nut, and a locking nut is arranged on the adjusting screw , the front end of the adjusting screw is bent into a hook-shaped buckle, the rear end of the annular connecting rod is provided with a through hole and a spring column is inserted in the through hole, and the spring column is located on one side of the annular connecting rod. For the tension spring, the end of the spring column is provided with a block corresponding to the tension spring, and the other end of the spring column is provided with a fixing ring. It is easy to install and easy to operate, and it can correct the eccentric wear of the brake shoe, fundamentally solving the problem of eccentric wear caused by the deflection of the brake shoe support of the locomotive to the outside. The resulting braking force decreases and the braking distance is extended, which leads to the occurrence of safety accidents such as derailment, falling off the track, and hitting people and cars.

Description

Brake shoe eccentric wear adjustment device for electric locomotive

technical field

The utility model relates to a maintenance tool for a brake shoe of an electric vehicle, in particular to a device for adjusting the eccentric wear of the brake shoe of an electric vehicle.

Background technique

During the normal operation of the electric locomotive, when adjusting the speed or stopping, it is necessary to apply a certain pressure to the brake shoes of the locomotive to make the brake shoes press against the moving wheels of the locomotive to generate frictional braking force, so the braking or release of the locomotive is very frequent. It has the following problems: due to the wear between the brake boom seat, the brake boom and the brake shoe support, the parts are not well matched, and if things go on like this, the brake shoe support of the locomotive is deflected to the outside, resulting in eccentric wear Phenomenon. After the brake shoe is eccentrically worn, the friction surface between the brake shoe and the moving wheel of the locomotive is reduced, and the friction coefficient of the brake shoe is significantly reduced, resulting in a decrease in braking force and prolonging the parking distance. When an emergency stop is required, sufficient braking force cannot be generated on the locomotive in time. , affecting driving safety. At the same time, the eccentric wear of the brake shoe leads to a short service life of the brake shoe, which is easy to wear to the limit, frequent manual replacement, and high maintenance costs.

Contents of the invention

The purpose of this utility model is to provide an electric locomotive brake shoe eccentric wear adjustment device that is easy to install, easy to operate, and can correct the eccentric wear of the brake shoe. The wear between the brake shoe brackets causes the brake shoe brackets of the locomotive to deflect to the outside and cause the problem of eccentric wear. After the adjustment of the utility model, the braking force of the locomotive returns to normal, which avoids the decrease of the braking force and the braking force caused by the eccentric wear of the brake shoes. The extension of the moving distance leads to the occurrence of safety accidents such as derailment, off-track, collision with people and vehicles. the

The technical scheme of the utility model is:

A brake shoe eccentric wear adjustment device for an electric vehicle, characterized in that it includes an annular connecting rod, an adjusting nut is built in the front end of the annular connecting rod and an adjusting screw is threadedly connected with the adjusting nut, and a locking nut is provided on the adjusting screw , the front end of the adjusting screw is bent into a hook-shaped buckle, the rear end of the annular connecting rod is provided with a through hole and a spring column is inserted in the through hole, and the spring column is located on one side of the annular connecting rod. The upper sleeve is equipped with a spring seat and a tension spring, the end of the spring column is provided with a block corresponding to the tension spring, and the other end of the spring column is provided with a fixing ring.

The above-mentioned brake shoe eccentric wear adjustment device for electric locomotives also includes a connecting ring for welding on the brake shoe support and matching with the hook-shaped buckle.

The beneficial effects of the utility model are:

1. When in use, fix the fixing ring at the end of the spring column at an appropriate position under the end beam of the locomotive, and then weld the connecting parts (such as the connecting ring) on the corresponding point of the brake shoe support according to the angle of the eccentric wear of the brake shoe, and adjust the front end of the screw rod The hook-shaped hook hook is hung on the connecting part, and a force opposite to the deflection direction of the brake shoe support is applied to the inner side of the upper and lower ends of the brake shoe support, and then the adjustment of the eccentric wear brake is realized by adjusting the displacement of the adjustment screw relative to the adjustment nut. The function of the shoe, the device is simple in structure, easy to install, and the use effect is obvious. It can effectively adjust the angle of the brake shoe of the locomotive, so that when the electric locomotive is running and braking, the brake shoe and the wheel can fully contact each other to ensure the normal braking force of the locomotive. , to prevent accidents.

2. When the thickness of the brake shoe becomes thinner during the wear process, it is necessary to move the position of the brake boom to keep the effective distance between the brake shoe and the brake wheel. At this time, the spring column moves to the outside of the ring connecting rod, but under the action of the tension spring The pulling force of the adjustment device is kept constant, so that the brake shoe is still not worn out, thereby eliminating the danger of the worn out, and also eliminating the defects of the rigid connection.

3. The service life of the brake shoe is extended and the utilization rate is improved, thereby reducing the number of times to replace the brake shoe, which not only reduces the labor intensity of the staff due to frequent replacement of the eccentrically worn brake shoe, but also saves the usage of the brake shoe. Save a lot of consumption costs.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic diagram of the connection between the utility model and the brake shoe support side.

Description of serial numbers in the figure: 1 fixed ring, 2 spring column, 3 spring seat, 4 tension spring, 5 stopper, 6 annular connecting rod, 7 adjusting screw, 8 adjusting nut, 9 lock nut, 10 hook-shaped buckle, 11 Connecting ring, 12 brake shoe holders.

Detailed ways

As shown in the figure, the brake shoe eccentric wear adjustment device of an electric vehicle includes an annular connecting rod 6, an adjusting nut 8 is built in the front end of the annular connecting rod 6 and an adjusting screw 7 is threadedly connected with the adjusting nut 8, and the adjusting screw 7 A lock nut 9 is arranged on the top, the front end of the adjustment screw 7 is bent into a hook-shaped buckle 10, the rear end of the annular connecting rod 6 is provided with a through hole and a spring column 2 is inserted in the through hole, the The spring post 2 is located on one side of the ring-shaped connecting rod 6. A spring seat 3 and a tension spring 4 are set on the body of the rod. The end of the spring post 2 is provided with a block 5 corresponding to the tension spring 4. fixed ring 1. The device also includes a connecting ring 11 for being welded on the brake shoe holder and matched with the hook buckle 10 .

After being installed between the brake shoe support 12 and the end beam of the locomotive, after a period of calibration, the normal cooperation between the parts is restored, and then the device is removed.

Claims (2)

1. an electric locomotive brake shoe partial wear setting device, it is characterized in that: comprise annular connecting rod, described annular connecting rod front end is built-in with adjusting nut and utilizes adjusting nut to be threaded adjustment screw rod, described adjustment screw rod is provided with jam nut, described adjustment screw front end is bent into hook-shaped buckling, described annular rod rear end offers through hole and is fitted with spring bearing in described through hole, the side body of rod that described spring bearing is positioned at annular connecting rod is set with spring perch and tension spring, the corresponding tension spring in described spring bearing end is provided with gear platform, the described spring bearing other end is provided with set collar.

2. electric locomotive brake shoe partial wear setting device according to claim 1, is characterized in that: this device also comprises for be welded on brake head and hook-shapedly to buckle coupling link in mating connection with described.