阅读说明：本技术 锲顶式应急制动与驻车制动器 (Wedge top type emergency braking and parking brake ) 是由 黄波克 田可夫 于 2019-11-01 设计创作，主要内容包括：本发明公开了一种锲顶式应急制动与驻车制动器,其摩擦片的两端均具有凸起,在其支撑架上、并靠近摩擦片的凸起处装有两个互相对接的半圆弧环形的顶铁,该顶铁的对接端穿插有滚柱且由拉簧拉拢回缩；在所述支撑架上装有套筒,该套筒的一端内装有制动分泵、其另一端上装有压板,在所述压板的外侧边上对接有动力输出杆,该动力输出杆的另一端处于所述滚柱之间。所述动力输出杆的端部具有顶块、其身部具有锲块。本发明在动力输出杆上的顶块和锲块的锐角斜面同时同步强力锲顶下,顶铁被向上顶起,使顶铁以其钢性顶推摩擦片的凸起向上而与制动鼓产生摩擦制动,同时实现应急制动和驻车制动。且有利于减少安装空间,提升了安全制动的工作效率。(The invention discloses a wedge-top type emergency braking and parking brake.A bulge is arranged at each of two ends of a friction plate, two semi-arc annular top irons which are mutually butted are arranged on a support frame and close to the bulge of the friction plate, and a roller is inserted into the butted end of each top iron and is drawn by a tension spring to retract; the support frame is provided with a sleeve, one end of the sleeve is internally provided with a brake cylinder, the other end of the sleeve is provided with a pressing plate, the outer side edge of the pressing plate is in butt joint with a power output rod, and the other end of the power output rod is positioned between the rollers. The end of the power output rod is provided with a top block, and the body of the power output rod is provided with a wedge block. According to the invention, the ejector iron is jacked upwards under the sharp inclined plane of the ejector block and the wedge block on the power output rod synchronously and strongly jacked, so that the ejector iron jacks the bulge of the friction plate upwards by the rigidity of the ejector iron to generate friction braking with the brake drum, and meanwhile, emergency braking and parking braking are realized. And the installation space is favorably reduced, and the working efficiency of safety braking is improved.)

1. Carve top formula emergency braking and parking brake, including support frame, friction disc, brake drum, its characterized in that: the two ends of the friction plate are provided with bulges, two semi-arc annular ejector irons which are mutually butted are arranged on the support frame and close to the bulges of the friction plate, and the butted ends of the ejector irons are inserted with rollers and drawn together by tension springs to retract; the support frame is provided with a sleeve, one end of the sleeve is internally provided with a brake cylinder, the other end of the sleeve is provided with a pressing plate, a piston rod of the brake cylinder is inserted on the pressing plate, a power output rod is butted at the outer side edge of the pressing plate and between the piston rods, and the other end of the power output rod is positioned between the rollers.

2. The wedge-top emergency brake and parking brake of claim 1, wherein: and a lever power arm is arranged on the inner wall of the sleeve and between the brake cylinder and the pressure plate.

3. The wedge-top emergency brake and parking brake according to claim 1 or 2, wherein: the end part of the power output rod between the rollers is provided with a top block, and the body part of the power output rod is provided with a wedge block.

4. The wedge-top emergency brake and parking brake of claim 3, wherein: and a fine adjustment bolt is arranged in the power output rod and at the joint with the pressure plate, the top of the fine adjustment bolt is in butt joint with the pressure plate, and the fine adjustment bolt is provided with a distance adjustment nut and a positioning nut which are matched with each other.

Technical Field

The invention relates to a vehicle braking system, in particular to a brake.

Background

At present, the vehicle safety brake mainly solves the functions of emergency braking, fault monitoring, automatic cooling, cleaning and dust removal and the like during driving, and needs another set of parking braking device to be arranged at the corresponding position to realize parking braking, thereby occupying limited space in the vehicle. The existing device with the functions of emergency braking and parking braking during running is lacked, and the working efficiency of safety braking is influenced.

Disclosure of Invention

The invention aims to overcome the defects and provide a wedge-top type emergency brake and parking brake which can integrate service emergency brake and parking brake.

The purpose of the invention is realized by the following technical scheme: the wedge-top type emergency braking and parking brake comprises a support frame, a friction plate and a brake drum, wherein two ends of the friction plate are respectively provided with a bulge, two semi-arc annular top irons which are mutually butted are arranged on the support frame and close to the bulges of the friction plate, and a roller is inserted into the butted ends of the top irons and is drawn together by a tension spring to retract; the support frame is provided with a sleeve, one end of the sleeve is internally provided with a brake cylinder, the other end of the sleeve is provided with a pressing plate, a piston rod of the brake cylinder is inserted on the pressing plate, a power output rod is butted at the outer side edge of the pressing plate and between the piston rods, and the other end of the power output rod is positioned between the rollers.

And a lever power arm is arranged on the inner wall of the sleeve and between the brake cylinder and the pressure plate. The end part of the power output rod between the rollers is provided with a top block, and the body part of the power output rod is provided with a wedge block. The fine adjustment bolt is arranged in the power output rod and at the joint with the pressing plate, the top of the fine adjustment bolt is in butt joint with the pressing plate, and the fine adjustment bolt is provided with the distance adjustment nut and the positioning nut which are matched with each other, so that the minimum working stroke of the power output rod is achieved.

After the invention is adopted, the brake cylinder presses the pressing plate on the sleeve downwards through the lever power arm, the pressing plate pushes the fine adjustment bolt to enable the power output rod to extend outwards, the acute-angle inclined planes of the top block and the wedge block on the power output rod synchronously and forcefully wedge downwards to enter between the rollers, the tension of the tension springs at two ends of the top iron on the left side and the right side (up and down) is overcome, the top iron is jacked upwards, the top iron pushes the bulges of all friction plates upwards through the rigidity of the top iron to generate friction braking with the brake drum, and therefore, the emergency braking and parking braking are simultaneously realized. The brake device is beneficial to reducing the installation space, can well utilize the space, is simple and convenient to install, improves the efficiency of power output, and improves the working efficiency of safe braking.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and embodiments.

Fig. 1 is a schematic structural view of a wedge type emergency brake and parking brake according to the present invention.

Fig. 2 is a left side view (partially upper half) of fig. 1.

Fig. 3 is a side view in the direction of a in fig. 2.

Fig. 4 is a schematic view of the butt joint of the power output rod, the fine adjustment bolt and the pressure plate in fig. 2.

Fig. 5 is a schematic structural view of the power take-off lever in fig. 2.

Fig. 6 is a schematic view of the butt joint of the power take-off lever and the top iron in fig. 2.

Figure 7 is a schematic structural view of the friction plate of figure 1.

Detailed Description

Referring to fig. 1 to 7, the wedge-top type emergency brake and parking brake of the present invention includes a support frame 13, friction plates 12 (a plurality of plates connected at intervals), and a brake drum 23, wherein both ends of the friction plates 12 are provided with protrusions 20 (protruding shape, see fig. 7), two half-arc annular ejector irons 1 (which may be chain structure, spliced to form a whole arc ring) are mounted on the support frame 13 and near the protrusions of the friction plates 12, the ejector irons are butted with each other, rollers 2 are inserted into the abutting ends of the ejector irons 1, and the ejector irons are pulled together and retracted by a tension spring 5 (the other abutting ends of the ejector irons are arc-shaped and provided with positioning pin holes 3 to be mounted in cooperation with frame positioning pins on the support frame); a sleeve 15 is arranged on the support frame 13 (and on the side of the top iron through a bolt 16), one end of the sleeve 15 is internally provided with a brake cylinder 18, the other end of the sleeve is provided with a pressing plate 29, a piston rod 19 (two pieces) of the brake cylinder is inserted on the pressing plate 29, a power output rod 6 is butted between the piston rods on the outer side of the pressing plate 29, and the other end of the power output rod 6 is positioned between the rollers 2 (see fig. 2 and 6). And lever power arms 21 (two pieces which are crossly inserted) are arranged on the inner wall of the sleeve 15 and between the brake cylinder 18 and the pressure plate 29 (in a crossly inserted mode through two lever prying holes 17 on the sleeve) so as to increase the power output force of the brake cylinder.

Wherein, the top iron 1, the roller 2, the extension spring 5 are respectively one set at the front and back positions of the supporting frame 13 and are respectively close to the bulges 20 at the two ends of the friction plate, as shown in fig. 5 and fig. 6, the end part of the power output rod 6 between the rollers is provided with a top block 7 (which is in an acute angle shape), and the body part of the power output rod is provided with a wedge block 8 (which is in an acute angle shape), so that the end part and the body part of the power output rod can simultaneously jack up the two sets of rollers at the front and back positions. The power output rod 6 is also provided with a rod positioning pin 26 which is matched with a frame positioning pin hole on the support frame for installation. As shown in fig. 2 and 4, a fine adjustment bolt 9 is arranged in the power output rod 6 and at the joint with the pressure plate 29, the top of the fine adjustment bolt 9 is in joint with the pressure plate 29, and the fine adjustment bolt 9 is provided with a distance adjustment nut 10 and a positioning nut 11 which are matched with each other, so that the minimum working stroke of the power output rod is achieved.

The working principle of the invention is as follows: the wheel cylinder 18 includes a piston 28, a strong spring 22, a piston rod 19, and the like, and has an intake port 24. When the wheel cylinder 18 does not work, compressed air in the wheel cylinder compresses a strong spring 22 in the wheel cylinder, and a lever power arm 21 in the sleeve 15 is lifted to be in a waiting working state; two ends of a semicircular arc annular top iron 1 positioned at the left side and the right side (or called upper side and lower side) are drawn together and retracted by a tension spring 5, and are in a state of waiting to work; the jacking block 7 and the wedge block 8 on the power output rod 6 are respectively and correspondingly matched with the rollers 2 on the two sets of semi-circular arc annular jacking irons and are in a state of waiting for working contact.

When the brake cylinder 18 (strong spring energy storage) works, the air inlet 24 cuts off compressed air, the elasticity of the strong spring 22 is released, the brake cylinder 18 presses the lever power arm 21 downwards, the lever power arm 21 inserted in the lever prying hole 17 on the inner wall of the sleeve rotates around the axis to press downwards, the lever power arm 21 presses the pressing plate 29 on the sleeve 15 downwards, the pressing plate 29 pushes the fine tuning bolt 9 to extend the power output rod 6, the acute-angle inclined planes of the top block 7 and the wedge block 8 on the power output rod 6 are synchronously and strongly wedged downwards to enter the roller 2, the tension forces of the tension springs 5 at two ends of the top iron 1 at the left side and the right side (up and down) are overcome, the top iron 1 is jacked upwards by taking the positioning pin hole 3 and the frame positioning pin as fulcrums, the top iron pushes the bulges 20 of all friction plates upwards by the rigidity to generate friction braking with the brake drum 23, so as to realize emergency braking at the same time (realized by another driving brake power mechanism, known in the art) and parking brakes.

The invention is mainly applied to the automobile brake system, and the parking brake is released when the brake cylinder is inflated, and the power output is realized when the brake cylinder is not inflated, so that the parking brake is realized. And the method can also be applied to mechanical industries such as machining, robots and the like.