CN102491215A - Disc brake structure - Google Patents

Abstract

The utility model discloses a disc brake structure, which belongs to the technical field of disc brakes. A releasing cylinder and a spring chamber are respectively arranged at two ends of a cylinder body; a braking cylinder is arranged on the end surface of the cylinder body at one end where the spring chamber is also arranged; a piston is installed in the releasing cylinder; a guide rod penetrates through middle holes of the spring chamber and the releasing cylinder; one end of the guide rod is connected with the piston; a fastening bolt penetrates through the piston and the guide rod in sequence and then is connected and fixed with a brake body into a whole body; a spring seat is installed in the spring chamber; a belleville spring is installed on the spring seat; the belleville spring compresses the brake body; an annular piston is installed in the braking cylinder; a friction disk is fixed at the outer end of the brake body; a fixing bracket is installed at the end part of the cylinder body; and a magnetic induction type sensor is installed at the center of the bracket. The disc brake structure has the advantages of simple structure, reliability in operation and intellectualization.

Description

A kind of structure of plate disc brake

Technical field

The present invention relates to a kind of structure of plate disc brake, belong to the technical field of structures of plate disc brake.

Background technology

Plate disc brake is widely used in mine hoist, the brake snub of large-scale traction winch and handling machinery, parking; And the emergency braking under the safety case, at present, at the plate disc brake of the use in above-mentioned field; Structurally there are more complicated, the higher defective of fault rate, simultaneously, owing to the reason above the structure; The braking force of the drg of this type is provided by retarding spring, and drg is in the process of alleviating that declutches, by cylinder pushes piston, compression brake spring; Realize the purpose of the alleviation of declutching of drg, because retarding spring in long use, tired, damage occurs easily; So, reduce easily the effect of braking, even brake failure can occur, cause the generation of safety misadventure, in addition, this kind drg is owing to can't exist intelligent relatively poor defective to the monitoring of braking with relieved state.

Summary of the invention

The objective of the invention is to: to the existing defective of above-mentioned plate disc brake, propose a kind of structure of new-type drg, overcome existing drg because in structure aspects, existing above-mentioned defective.

The present invention realizes that the technical scheme that above-mentioned purpose adopts is: a kind of plate disc brake, and it mainly comprises cylinder body, annular piston, braking body, friction lining, pilot bar, piston, binding bolt, spring perch, belleville spring, alleviation cylinder, brake cylinder, spring housing, support, magnetic induction sensor, it is characterized in that: alleviation cylinder, spring housing are separately positioned on the two ends of cylinder body; Alleviate between cylinder, the spring housing through hole that communicates is arranged; Brake cylinder is arranged on the cylinder body end face with the same end of spring housing, and described brake cylinder cross section is a toroidal, and piston is installed in to be alleviated in the cylinder; Guide rod passes from the interstitial hole of spring housing and alleviation cylinder; Guide rod an end and piston be connected and fixed, binding bolt passes successively behind piston, the guide rod and is connected and fixed with the braking body, and spring perch is housed in spring housing; Belleville spring is housed on the spring perch; Belleville spring forms compressive state to the drg body, and annular piston is housed in brake cylinder, on the outer transverse plane of brake body, is fixed with friction lining; Cylinder ends mounting and fixing bracket at piston one end is equipped with magnetic induction sensor in the centre of support.

Principle of work of the present invention is: in work be, cylinder part and equipment install and fix together, in alleviating cylinder, do not feed pressure oil; And when feeding in the brake cylinder, then annular piston carries out roof pressure with belleville spring to brake body, forms braking mode; And do not feed in the brake cylinder when feeding pressure oil in pressure oil, the alleviation cylinder; Then piston forms compressive state to retarding spring, and brake body leaves brake disc, release of brake; In braking and the process of alleviating, piston just leaves or near magnetic induction sensor, so, through magnetic induction sensor, service condition that just can monitoring disc brake.

Beneficial effect: can know by principle of work of the present invention, since the mode that adopts belleville spring and brake cylinder to brake simultaneously, wherein any failure mechanisms; Can guarantee to brake effectively, so, adopt the piston structure of annular in addition; Because the piston of annular is applied to application force the border of brake body uniformly; Can guarantee that braking force is even, so that the present invention has is simple in structure, the advantage of reliable operation; Through magnetic induction sensor, the service condition of monitoring disc brake has improved the intelligent effect of plate disc brake.

Description of drawings

Accompanying drawing is a structure principle chart of the present invention;

Shown in the figure: 1, cylinder body; 2, annular piston; 3, braking body; 4, friction lining; 5, pilot bar; 6, piston; 7, binding bolt; 8, spring perch; 9, belleville spring; 10, alleviate cylinder; 11, brake cylinder; 12, spring housing; 13, support; 14, magnetic induction sensor.

The specific embodiment

Alleviation cylinder 10, spring housing 11 are separately positioned on the two ends of cylinder body 1, and alleviating between cylinder 10, the spring housing 11 has the through hole that communicates, and brake cylinder 11 is arranged on cylinder body 1 end face with spring housing's 12 same ends; Brake cylinder 11 cross sections are toroidals; Piston 6 is installed in alleviates in the cylinder 10, and guide rod 5 passes from spring housing 12 and the interstitial hole of alleviating cylinder 10, guide rod 5 an end and piston 6 be connected and fixed; Binding bolt 7 passes piston 6 successively, guide rod 5 backs are connected and fixed with brake body 3; Spring perch 8 is housed in spring housing 12, belleville spring 9 is housed on the spring perch 8,9 pairs of brakings of belleville spring body 3 forms compressive state; Annular piston 2 is housed in brake cylinder 11; Outer face at brake body 3 is fixed with friction lining 4, and the cylinder body 1 end mounting and fixing bracket 13 at piston 6 one ends is equipped with magnetic induction sensor 14 in the centre of support 13.

Claims (2)

1. plate disc brake; It is characterized in that: piston (6) is installed in to be alleviated in the cylinder (10); Guide rod (5) passes from the interstitial hole of spring housing (12) and alleviation cylinder (10), and an end of guide rod (5) and piston (6) are connected and fixed, and binding bolt (7) passes piston (6) successively, guide rod (5) back is connected and fixed with brake body (3); Spring perch (8) is housed in spring housing (12); Belleville spring (9) is housed on the spring perch (8), annular piston (2) is housed in brake cylinder (11), be fixed with friction lining (4) at the outer face of brake body (3).

2. plate disc brake, it is characterized in that: cylinder body (1) the end mounting and fixing bracket (13) at piston (6) one ends is equipped with magnetic induction sensor (14) in the centre of support (13).

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