CN2621915Y - Rotary key type rigid press emergency brake - Google Patents

Abstract

The utility model discloses a rotary key type rigid press emergency brake which comprises a ratchet wheel, a ratchet wheel control mechanism, a pulling spring and a ratchet wheel control and protection device. The bottom of the ratchet wheel gear forms an angle alpha with a central line of the ratchet wheel and a block meshed surface within the range of one degree to five degrees. The bevel of the point of the block and a ratchet wheel meshed surface is within the range of one degree to five degrees. The utility model enhances the mechanical strength of the ratchet wheel gear and the point of the block, and can effectively prevent the broken of the ratchet wheel gear and the point of the block, when the forced-upon strength is too strong. The utility model realizes the fast and smooth insertion of the block into the in-between of the gears, and the trigging time is no more than 0.2 second. The utility is of the advantages of safety, reliability and long service life, and efficiently protects the security of human body and the properties. In addition, the backhaul of the utility model adopts the non-protective structure, which enhances the production efficiency of the mechanical press. The utility model can be widely promoted.

Description

Turn key formula rigid press emergency braking apparatus

One, technical field

The utility model turn key formula rigid press emergency braking apparatus, what relate to is rigid press design and manufacturing technology field, particularly a kind of brake apparatus that is used for turn key formula forcing press.

Two, background technology

Present existing turn key formula rigid press, in the course of the work, general structure is to realize taking off the key braking when bottom dead centre is got back to top dead-centre; Braking during for solution unintended emergency situation though various forms of emergency braking apparatus are arranged, substantially all belongs to the safety device of stepless brake, and it is little to exist moment, and drag angle is big, has incured loss through delay the time that turn key is thrown off, and is difficult to bring into play the effect of brake hard; The described safety catch of example ZL98225538.1; braking effect is better, but because ratchet gear teeth shape is unreasonable, when the ratchet gear teeth and block bump against; reason owing to the ratchet gear teeth, the pointed shape of block; do not cushion leeway, stressed excessive in the mistake degree of the brake hard of being everlasting, especially when punching stretch; interrupt the ratchet gear teeth, block point; the incident of the associated components of lathe has generation more, does not have the purpose of brake hard, is difficult to effectively protect the safety of the person and property.

Three, summary of the invention

The purpose of the utility model turn key formula rigid press emergency braking apparatus is to improve the shape of the ratchet gear teeth, block point, overcomes stressed fractureing, and does not have the defective of brake hard.Its technology is achieved in that and comprises ratchet, also comprises the ratchet controlling organization be made up of pedestal, block, pivot pin, fixed head, spring, pull bar, caging bolt, location-plate, magnetic valve, extension spring, ratchet control protective device; it is characterized in that: top dead-centre comes downwards at the bottom of the hook tooth in the scope of bottom dead centre the angle a of the face that is meshed with the ratchet center line with block in 1-5 ° of scope, and the oblique angle of the corresponding block point and the hook tooth field of conjugate action is in 1-5 ° of scope.The positive effect of implementing after the above-mentioned technology is; emergency is taking place in the associated components that prevents hook tooth, block point, lathe effectively; special fractureing when punching stretch; realize that block rapidly, successfully inserts between cog; braking time is not more than 0.2 second; it is safe and reliable in top dead-centre comes downwards to 135 ° of scopes of bottom dead centre; the characteristics that life-span is long; protected the safety of the associated components of the person, property and lathe effectively; moreover the structure do not protected of backhaul; improve the production efficiency of forcing press, had promotional value.

Four, description of drawings

Fig. 1 is a sectional structure schematic diagram of the present utility model;

Wherein, cover, 11-bent axle, 12-ratchet, 13-hook tooth, 14-pedestal, 15-caging bolt, 16-location-plate in 1-magnetic valve, 2-pull bar, 3-spring, 3-1-extension spring, 4-fixed head, 5-block, 6-ratchet control protective device, 7-block point, 8-turn key caudal peduncle, 9-turn key, the 10-;

Five, the specific embodiment

The utility model is further described with 35T turn key formula rigid press emergency braking apparatus below in conjunction with accompanying drawing:

See accompanying drawing 1; interior cover is fixedlyed connected with bent axle (11) by flat key; interior cover (10) outer space cover ratchet (12); respectively have breach by interior cover (10) and ratchet (12); turn key (9) is loaded between interior cover (10) and ratchet (12) breach; turn key (9) flip angle is realized one or idle running; the pedestal of ratchet controlling organization (14) is fixed on the lathe bed; pedestal (14) intermediate orbit is equipped with block (5); horizontal side direction is provided with ratchet control protective device (6); pull bar (2) is connected with block (5) by pivot pin; the spring (3) that passes pull bar (2) is by regulating caging bolt (15) plate (16) compression that is positioned; passing the pull bar (2) in location-plate (16) hole is connected with magnetic valve (1) on being installed in lathe bed; fixed head (4) is topped on pedestal (14); and fixed with screw, the utility model integral installation forms turn key formula rigid press emergency braking apparatus between forcing press lathe bed and flywheel.

Its course of work is when press ram is in top dead-centre, the block point (7) of block (5) enters between two hook tooths (13) and blocks turn key caudal peduncle (8), turn key caudal peduncle (8) side and ratchet (12) are same plane, block (5) is folded mutually with ratchet (12), turn key caudal peduncle (8) flip angle makes turn key (9) realize that interior cover (10) separates with ratchet (12), the flywheel idle running of forcing press, bent axle (11) is not worked; When forcing press magnetic valve (1) is inhaled Tie Tong electricity adhesive, block (5) moves down along the intermediate orbit of pedestal (14), block point (7) is followed block (5) and is moved down, break away from ratchet (12), meanwhile, turn key (9) turn key (9) under the effect of extension spring (3-1) of having eliminated after the stopping of block (5) is in into the groove position, and bent axle (11) combines with flywheel by turn key (9), by the work of bent axle (11) drive ram; When magnetic valve (1) dead electricity, block (5) pops up along the intermediate orbit of pedestal (14) under the effect of spring (3), make block (5) and ratchet (12) engagement, ratchet (12) braking, and block turn key caudal peduncle (8) and can not rotate, the divided flywheel that forces turn key (9) and forcing press from, forcing press is by stop rapidly, when meeting accident accident, stretch in the photoelectric protection district as hand, photoelectric controller sends dead electricity instruction, power supply or magnetic valve (1) dead electricity, magnetic valve (1) is in abrupt release, spring (3) forces block (5) to move on rapidly, and with ratchet (12) engagement, ratchet (12) stops operating, turn key (9) is separated rapidly with flywheel, the stop motion immediately of the ram of forcing press, no longer descending, when hand withdraws from the photoelectric protection district, fault is got rid of, and magnetic valve (1) gets the electric normal operating conditions that enters; Wherein, when the forcing press ram upwards (rotates to the out-of-work direction of top dead-centre; this moment, injury accident can not take place in forcing press;) emergency braking apparatus need not brake hard in backhaul; hook tooth (13) on the ratchet (12) is removed half; do not protect thereby reach backhaul, improved the production efficiency of forcing press.For the brake force of block point (7) bump ratchet (12) braking of buffering block (5) during excessive or too little can't effectively the braking; can be located at middle push rod by regulating ratchet control protective device; to inward turning; reduce the power of block point (7) bump ratchet (12); protection block point (7) stroke is unlikely excessively; to outward turning, both strengthened the impact of block (5), be unlikely to excessive useful effect again.

Claims (1)

1. the utility model turn key formula rigid press emergency braking apparatus; comprise ratchet (12); also comprise by pedestal (14); block (5); pivot pin; spring (3); pull bar (2); fixed head (4); caging bolt (15); location-plate (16); the ratchet controlling organization that magnetic valve (1) is formed; extension spring (3-1); the structure of ratchet control protective device (6); it is characterized in that: the end that top dead-centre comes downwards to the hook tooth (13) in the scope of bottom dead centre, be meshed the angle a of face in 1-5 ° of scope with ratchet (12) center line with block (5), the oblique angle of the corresponding block point and hook tooth (13) field of conjugate action is in 1-5 ° of scope.