CN209781517U - Friction block for pneumatic clutch - Google Patents

Abstract

The utility model relates to a friction block for pneumatic clutch. The purpose is to provide an improvement of a friction block for a pneumatic clutch, and the friction block for the clutch has the characteristics of high mechanical strength, large friction torque, good high temperature resistance, strong shock absorption and impact resistance, long service life and convenience in processing. The technical scheme is as follows: a friction block for a pneumatic clutch comprises a metal framework and a friction material layer bonded on the metal framework; the damping material layer is arranged in the middle of the metal framework; the damping material layer is also provided with a plurality of through holes which are communicated with the two end faces of the damping material layer, a plurality of cylinders which are matched with the through holes one by one are correspondingly formed on the friction material layer, and the cylinders extend into the corresponding through holes one by one and are meshed and fixed with the through holes into a whole.

Description

Friction block for pneumatic clutch

Technical Field

The utility model relates to a friction block for a pneumatic clutch; the clutch is suitable for pneumatic clutch and brake systems.

Background

The friction block for the pneumatic clutch is a key component in the industrial pneumatic clutch; the existing friction block for the pneumatic clutch is complex to assemble, poor in installation accuracy and free of impact resistance and shock absorption functions, wherein the bonding strength of a friction material and a metal framework is poor, the direction of friction force borne by the friction block during working is parallel to the bonding surface of the metal framework, so that the bonding layer becomes a stress concentration area and the phenomena of cracking and damage occur, the service life of the friction block for the pneumatic clutch is shortened, and the use cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of above-mentioned background art, provide a pneumatic clutch with rubbing and hinder the piece improvement, this clutch should have that mechanical strength is high, friction torque is big, high temperature resistance can be good, shock attenuation shock resistance is strong, long service life and processing convenient characteristics.

The utility model provides a technical scheme is: a friction block for a pneumatic clutch comprises a metal framework and a friction material layer bonded on the metal framework; the friction material layer is bonded on the bonding surface of the metal framework through an adhesive, and the middle part of the friction material layer is provided with a damping material layer; the damping material layer is also provided with a plurality of through holes which are communicated with the two end faces of the damping material layer, a plurality of cylinders which are matched with the through holes one by one are correspondingly formed on the friction material layer, and the cylinders extend into the corresponding through holes one by one and are meshed and fixed with the through holes into a whole.

The friction material layer and the shock absorption material layer are both cylindrical; the diameter of the shock absorption material layer is smaller than that of the friction material layer, and the thickness of the shock absorption material layer is half to one fourth of that of the friction material layer.

The axis of the through hole is parallel to the axes of the friction material layer and the shock absorption material layer.

The utility model has the advantages that: the friction block for the pneumatic clutch has the advantages that the damping material layer is arranged in the friction material layer, so that the damping effect is good, the compression resilience of the friction block is excellent, and the permanent deformation is small; the mechanical strength is improved by nearly one time compared with the prior art, and the service life is also obviously prolonged; the metal framework is directly hot-pressed and molded, so that the processing is more convenient, and the production cost is obviously reduced; is beneficial to popularization and application.

Drawings

Fig. 1 is a schematic view of a friction block for a pneumatic clutch according to the present invention.

3 fig. 3 2 3 is 3 a 3 schematic 3 sectional 3 view 3 taken 3 along 3 line 3 a 3- 3 a 3 of 3 fig. 3 1 3. 3

Fig. 3 is a schematic front view of the shock absorbing material layer of the present invention.

Detailed Description

The friction block for the pneumatic clutch shown in the attached drawing comprises a metal framework 1 and a friction material layer 2 bonded on the metal framework; the periphery of the metal framework is also provided with a plurality of (3 shown in the figure) climbing lugs 5, and special-shaped clamping grooves 4 for mounting and positioning are formed on the climbing lugs and can be matched with a pneumatic clutch to realize the quick mounting of the friction block for the pneumatic clutch. These are similar to the existing friction blocks for the upper pneumatic clutch.

the utility model discloses an improvement is: the friction material layer is bonded on the bonding surface of the metal framework through an adhesive, and the middle part of the friction material layer is also provided with a damping material layer 3. Preferably, the friction material layer and the shock absorption material layer are both cylindrical; and the diameter of the shock absorption material layer is smaller than that of the friction material layer, and the thickness of the shock absorption material layer is half to one fourth of that of the friction material layer. The shock absorbing material layer is embedded in the middle of the friction material layer and then is completely covered by the friction material layer. After the damping material layer is configured, the compression resilience performance of the friction material layer is obviously improved, and the damping performance of the friction block is also obviously improved.

In order to enhance the bonding strength between the shock-absorbing material layer and the shock-absorbing material layer, a plurality of through holes 6 are further arranged on the shock-absorbing material layer, the through holes penetrate through two end faces of the shock-absorbing material layer, namely two planes perpendicular to two ends of the shock-absorbing material layer in the axial direction (namely perpendicular to the paper surface direction of figures 1 and 3), and a certain distance is reserved between every two adjacent through holes. A plurality of cylinders 2-1 are correspondingly formed on the friction material layer, the diameters of the cylinders are suitable for the diameters of the through holes and correspond to the positions of the through holes one by one; the cylinders extend into the corresponding through holes one by one and are meshed and fixed with the through holes into a whole. The matching structures of the cylinders and the through holes are similar to tenon-and-mortise structures, so that the connection strength of the damping material layer and the damping material layer is greatly enhanced, the cylinders and the damping material layer are integrated, and the mechanical property is remarkably improved.

The size and number of the through holes (13 through holes are shown in the figure) can be determined according to the size of the friction block, or can be determined according to the requirement.

The utility model discloses in all raw materials all outsourcing obtain.

Claims (2)

1. A friction block for a pneumatic clutch comprises a metal framework (1) and a friction material layer (2) bonded on the metal framework; the friction material layer is bonded on the bonding surface of the metal framework through an adhesive, and the middle part of the friction material layer is provided with a damping material layer (3); the damping material layer is also provided with a plurality of through holes (6) which run through the two end surfaces of the damping material layer, a plurality of cylinders (2-1) which are matched with the through holes one by one are correspondingly formed on the friction material layer, and the cylinders extend into the corresponding through holes one by one and are meshed and fixed with the through holes into a whole;

The friction material layer and the shock absorption material layer are both cylindrical; the diameter of the shock absorption material layer is smaller than that of the friction material layer, and the thickness of the shock absorption material layer is half to one fourth of that of the friction material layer.

2. The friction block for a pneumatic clutch according to claim 1, wherein: the axis of the through hole is parallel to the axes of the friction material layer and the shock absorption material layer.