CN201049640Y

CN201049640Y - Brake breaker

Info

Publication number: CN201049640Y
Application number: CNU2007201397451U
Authority: CN
Inventors: 买汗买提江·提力瓦尔德
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-02-20
Filing date: 2007-02-20
Publication date: 2008-04-23
Anticipated expiration: 2017-02-20

Abstract

The utility model discloses a brake breaking device used on a railcar to free manual and mechanical braking. The utility model comprises a head1, a tail2 and two haunches3 which are welded together. The head and the tail are semi-arcs made of reinforcing steel bars, with outer diameters respectively in 20-60mm and 30-100mm. The haunches3 are reinforcing steel bars 100-180mm in length. The head and the tail can also be made into U-shaped structures. When to free the braking of the railcar, it only needs to sheathes the head of the brake breaking device into between the ratchet wheel and the pallet of the manual brake and press the tail2 downwards, in this way the pallet can be disengaged with the cog of the ratchet wheel, then the ratchet wheel rotates reversely, thus breaking brake. The utility model is safe, time-saving and low in cost.

Description

Broken lock device

One, technical field

The utility model relates to a kind of instrument that is used for the railroad train shunting service, specifically is exactly to use the hand brake glancing impact when vehicle, is used for the instrument of brake off operation.

Two, background technology

Each joint railway carriage of load carrying vehicle all has a cover Pneumatic brake systems and a cover hand brake system in each that move on China railways at present.Pneumatic brake systems mainly is made up of braking reservoir, airduct, valve, release spring, brake lever, brake shoe, it is to enter the braking reservoir by the pressurized air in the airduct, promote the reciprocating motion of the pistons in the braking reservoir, the brake lever that moves through of piston drives brake shoe and holds tightly or unclamp wheel, thereby realizes that braking or brake off (being commonly called as alleviation) Pneumatic brake systems mainly use in the middle of train operation.Stop when train arrival need carry out the long period, or during the vehicle shunting service, particularly when locomotive with after railway carriage separates, owing to railway carriage has lost compressed-air actuated source, so Pneumatic brake systems just can't use.In order to prevent vehicle runaway voluntarily, must adopt the hand brake system.The hand brake system mainly is made up of braking handwheel, brake axle, pallet hammer, ratchet, ratchet, drum, drag chain.During left-hand revolution braking handwheel, drive drum by brake axle and rotate, drag chain and brake lever have been strained in the rotation of drum, and brake lever pulling brake shoe is held wheel tightly, reaches the purpose of braking.In order to keep braking mode for a long time, at the middle part of brake axle ratchet and pawl is installed, after glancing impact braking handwheel was tightened, ratchet snapped in the teeth groove of ratchet, and it is loosening to make it to circle round.Prior art problems occurs in when the needs brake off and (is commonly called as and removes lock), because the long-time stop of vehicle, compressed-air actuated discharge in the braking reservoir, make the pressure of release spring lose anti-perseverance (this process is commonly called as unintended release), this moment, ratchet increased suddenly to the pressure of ratchet, to such an extent as to can't the rolling brake handwheel with manpower, withdraw from ratchet, brake off.Owing to there is not special tool to withdraw from ratchet, the method one that present station operation personnel adopt is to pound ratchet with stone, and often handle breaks; Two are to use the hook of safety strap to pound, and so often cause the damage or the hidden danger of safety strap, cause safety misadventure; The 3rd, most of yard mans pull down the brake shoe pricker that train is using at present, prize ratchet with the brake shoe pricker, often throw away conveniently after using up, only the brake shoe pricker lost in 1 year of station, Hami just reaches up to a hundred more than according to statistics, this has not only caused waste, the more important thing is that because the brake shoe pricker is the part in addition that is used for installing and fixing brake shoe, the brake shoe pricker is removed and might causes train brake shoe in the middle of operation to come off, make brake failure, cause serious accidents such as collision, overturning.In addition, because the brake shoe of high-speed cruising drops into bounce-back behind the roadbed, may smash the reservoir, airduct of vehicle bottom etc., the safety that seriously jeopardizes vehicle.Also have above-mentioned three kinds of methods to have a common shortcoming to lose time exactly, because seek a suitable stone or dismantle the brake shoe pricker and all need the time, and these alternative tool operations that temporarily call in get up also very time-consuming, slow 2 minutes of imagination one joint railway carriage, a station will be wasted 3-5 hour in one day, be an enormous economic loss this today that density constantly increases that connects, dispatches a car at railway speed increase, station.

Three, summary of the invention

The purpose of this utility model provides and a kind ofly can guarantee safely, saves time, cheap vehicle is removed the lock instrument.

The broken lock device of the utility model is formed by head, afterbody and two waist weld togethers.Head and afterbody are the semicircular arcs that is bent into reinforcing bar, and the semi arch external diameter of head is 20～60 millimeters, and the semi arch external diameter of afterbody is 30～100 millimeters, and waist is that a length is 100～180 millimeters reinforcing bar.

The head and the afterbody of broken lock device can also be made " U " font, and " U " font width of head is 20～60 millimeters, and the width of " U " font of afterbody is 30～100 millimeters, and waist is that a length is 100～180 millimeters reinforcing bar.

Aforementioned head semi arch external diameter the best is 30 millimeters, and semi arch external diameter the best of afterbody is 50 millimeters, and length the best of waist is 140 millimeters.

Width the best of aforementioned head " U " font is 30 millimeters, and width the best of afterbody " U " font is 50 millimeters, and length the best of waist is 140 millimeters.

Adopted technique scheme, when need are removed lock, as long as will break the head of lock device fills between the pawl-and-gearing gear teeth of hand brake, to break lock device tail down one pressure, broken lock device head will make ratchet deviate from from the ratchet teeth groove, the braking handwheel just can turn round, the take-off the brake chain, thus reach the purpose of brake off.

Compare with prior art, go for suitable stone owing to need not get off when removing lock, perhaps remove to dismantle the brake shoe pricker, and operation the time only need click, therefore it is saved time, because it has avoided coming off of brake shoe, stone smashes staff and safety strap damages, therefore it has avoided train operation accident, has guaranteed safety; Because it is only made by reinforcing bar, and simple in structure, so it is cheap.

Four, description of drawings

Fig. 1 is that head and afterbody are the constructional drawing of the broken lock device of semicircular arc;

Fig. 2 is that head and afterbody are the constructional drawing of the broken lock device of " U " font;

Fig. 3 is broken the fundamental diagram of lock device.

Five, the specific embodiment

The utility model is further described below in conjunction with the drawings and the specific embodiments:

In Fig. 1 and Fig. 2, broken lock device is formed by head 1, afterbody 2 and two waist 3 weld togethers.Head 1 and afterbody 2 all are to make with bar bending.Semicircular arc is made in head 1 shown in Figure 1 and afterbody 2 bendings.The semi arch external diameter of head 1 is 20～60 millimeters, and the best is 30 millimeters.The semi arch external diameter of afterbody 2 is 30～100 millimeters, and the best is 50 millimeters." U " font is made in head 1 shown in Figure 2 and afterbody 2 bendings.The width of head 1 is 20～60 millimeters, and the best is 30 millimeters, and afterbody 2 width are 30～100 millimeters, and the best is 50 millimeters.The waist 3 of two kinds of broken lock devices illustrated in figures 1 and 2 is that a length is 100～180 millimeters reinforcing bar, and the optimum length of waist 3 is 140 millimeters.

In Fig. 3, when needs glancing impact left-hand revolution braking handwheel 8, drive chain drum 5 rotations, thereby, just vehicle is held tightly with the brake shoe that brake lever 7 links to each other with drag chain 6 and brake lever 7 tensions by brake axle 4, realized braking.The effect of ratchet 9 and ratchet 10 is to prevent brake axle 4 and chain drum 5 reversings, to keep braking mode.When the needs brake off, as long as will break the head 1 of lock device fills between ratchet 9 and the ratchet 10, to break lock device afterbody 2 (not drawing on the figure) to next pressure, ratchet 9 is deviate from from the teeth groove of ratchet 10, so ratchet 10 and brake axle 4 revolutions, drag chain 6 and lever connection 7 loosen, and brake shoe unclamps wheel, and brake off.

Claims

1. broken lock device, it is characterized in that: it is to be formed by head (1), afterbody (2) and two waists (3) weld together; Head (1) and afterbody (2) are to be bent into semicircular arc with reinforcing bar, and the semi arch external diameter of head (1) is 20～60 millimeters, and the semi arch external diameter of afterbody (2) is 30～100 millimeters; Waist (3) is that a length is 100～180 millimeters reinforcing bar.

2. according to the said broken lock device of claim 1, it is characterized in that: semi arch external diameter the best of said head (1) is 30 millimeters, and semi arch external diameter the best of afterbody (2) is 50 millimeters, and length the best of waist (3) is 140 millimeters.

3. broken lock device, it is characterized in that: it is to be formed by head (1), afterbody (2) and two waists (3) weld together; Head (1) is to become " U " font with bar bending with afterbody (2), and the width of head (1) is 20～60 millimeters, and the width of afterbody (2) is 30～100 millimeters, and waist (3) is that a length is 100～180 millimeters reinforcing bar.

4. according to the said broken lock device of claim 3, it is characterized in that: width the best of said head (1) is 30 millimeters, and width the best of afterbody (2) is 50 millimeters, and length the best of waist (3) is 140 millimeters.