Friction brake disc of high-speed piling car

Abstract

The utility model relates to a friction brake disc. The utility model aims to provide an improved friction brake disc of a high-speed piling car. The friction brake disc has the characteristics of high strength, long service life, low noise and convenience in processing. According to the technical scheme, the friction brake disc of the high-speed piling car is characterized in that an upper end face and a lower end face are respectively provided with a plurality of helical tooth-shaped grooves which are concentrically arranged, and a plurality of helical tooth-shaped protruding strips matched with helical tooth shapes are formed on a friction material layer; when the friction material layer is bonded and fixed on the bonding surface of the metal framework through an adhesive, the helical-tooth-shaped convex strips are filled into the corresponding helical-tooth-shaped grooves and are bonded and fixed; the surface of the friction material layer is further provided with a plurality of heat dissipation dust grinding channels evenly distributed around the axis of the brake disc, the heat dissipation dust grinding channels are in an arc shape, and the bending direction of one end of the outer diameter of the brake disc is opposite to the rotating direction of the brake disc so that heat and ground powder generated in the braking process can be dissipated.

Description

Technical Field

[0001] The utility model relates to a friction brake disc, in particular to a high-speed stacker friction brake disc which is formed by hot pressing in one step. Background Art

[0002] The friction brake disc of a high-speed stacker is a key component of the stacker brake. The existing friction brake disc has poor installation accuracy. The friction material and the metal frame are combined using traditional mechanical riveting technology to fix the friction material to the metal frame through mechanical riveting. This method has the following disadvantages: (1) The step-by-step forming process is cumbersome. The friction material is first formed and then riveted to the metal frame, which results in low production efficiency. (2) The friction material has low strength. The friction material needs to be punched after forming, which damages the overall strength of the friction material. After riveting, stress concentration is easily generated at the rivet hole, resulting in a decrease in mechanical strength. (3) The friction material utilization rate is low. Since the position occupied by the rivet in the friction material needs to be given up, the friction material cannot be fully utilized. (4) Product quality is difficult to guarantee. Since stress concentration is generated at the rivet joint after riveting, the damping plate is prone to cracking and damage, resulting in a high scrap rate. This increases the input of manpower and materials, and also increases production costs. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the above-mentioned background technology and provide an improvement of the friction brake disc of a high-speed stacker, wherein the friction brake disc should have the characteristics of high strength, long service life, low noise and convenient processing.

[0004] The technical solution adopted by the utility model is as follows: a high-speed stacker friction brake disc, comprising a disc-shaped metal frame and a friction material layer pasted on the upper and lower end faces of the frame; the characteristic is that: a plurality of concentrically arranged oblique tooth-shaped grooves are respectively provided on the upper and lower end faces, and a plurality of oblique tooth-shaped convex strips suitable for the oblique tooth shape are formed on the friction material layer; while the friction material layer is bonded and fixed to the bonding surface of the metal frame by an adhesive, the plurality of oblique tooth-shaped convex strips are filled into the corresponding oblique tooth-shaped grooves and bonded and fixed; a plurality of heat dissipation wear dust channels evenly distributed around the axis of the brake disc are also provided on the surface of the friction material layer, the plurality of heat dissipation wear dust channels are arc-shaped, and the bending direction at one end of the outer diameter of the brake disc is opposite to the rotation direction of the brake disc, so as to facilitate the dissipation of heat and wear dust generated during braking.

[0005] The angle B between the groove wall of the oblique tooth groove and the horizontal plane is 40-65 degrees.

[0006] The heat dissipation and wear ash channel is arc-shaped, and the bending direction of the arc-shaped heat dissipation and wear ash channel at one end of the outer diameter of the brake disc is opposite to the rotation direction of the brake disc.

[0007] Rectangular spline teeth are made in the shaft hole of the metal skeleton.

[0008] The present invention has the following beneficial effects: Because it utilizes a one-step hot-pressing process to hot-press the friction material layer into the helical tooth-shaped grooves of the metal frame, and secures the friction material layer to the metal frame with an adhesive, this ensures excellent bonding strength and reliability between the friction material and the metal frame, thereby improving the mechanical strength of the friction brake disc. Furthermore, the surface of the friction material layer is designed with evenly distributed heat dissipation channels, thereby ensuring product quality and reducing production costs. Furthermore, the axial hole of the disc-shaped metal frame is provided with rectangular spline teeth, facilitating installation while also improving assembly precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the main structure of an embodiment of the present utility model.

[0010] Figure 2 It is a schematic top view of the structure of an embodiment of the present utility model.

[0011] Figure 3 yes Figure 1 Schematic diagram of the main structure of the metal skeleton (the friction material layer is hidden in the figure).

[0012] Markings in the figure: metal skeleton 1, friction material layer 2, heat dissipation and wear channel 2.1, rectangular spline teeth 3, and oblique tooth grooves 4. DETAILED DESCRIPTION

[0013] The friction brake disc of a high-speed stacker truck shown in the figure comprises a disc-shaped metal frame 1 and friction material layers 2 bonded to the upper and lower end surfaces of the disc-shaped metal frame; these structures are similar to those of existing friction brake discs of high-speed stacker trucks.

[0014] One of the improvements of the present utility model is that a plurality of concentrically arranged oblique tooth-shaped grooves 4 are respectively made on the upper end face and the lower end face of the disc-shaped metal skeleton, so that the contact area between the disc-shaped metal skeleton and the friction material layer is significantly increased; and the friction material layer is fixed to the upper end face and the lower end face by a one-step hot pressing molding process, ensuring that the two fit closely (before hot pressing molding, adhesive is first applied to the upper end face and the lower end face; during hot pressing molding, after the friction material layer enters the oblique tooth-shaped grooves, corresponding oblique tooth-shaped convex strips are also formed on the bonding surface); therefore, after bonding with the adhesive, the bonding strength of the friction material layer on the disc-shaped metal skeleton is greatly improved, which not only improves the braking force of the friction brake disc of the light high-speed stacker, but also ensures the service life of the friction brake disc.

[0015] The groove walls on both sides of the oblique tooth groove form a certain angle B with the horizontal plane; as recommended, the angle is 40-65 degrees.

[0016] The second improvement of the present invention is that a number of heat dissipation and wear dust channels 2.1 are evenly distributed around the axis of the brake disc and are designed on the surface of the friction material layer. These channels can effectively dissipate the heat and wear dust generated during braking, thereby improving the heat dissipation performance of the brake disc and extending its service life. As can be seen from the figure, the heat dissipation and wear dust channel is arc-shaped, and the bending direction of the arc-shaped heat dissipation and wear dust channel at one end of the outer diameter of the brake disc is opposite to the rotation direction of the brake disc (or in other words, the angle A between the extension line of the intersection of the axis of the arc-shaped heat dissipation and wear dust channel and the outer circumference of the brake disc and the movement direction of the point is greater than 90 degrees), which is beneficial to the dissipation of heat and wear dust in the heat dissipation and wear dust channel during operation. The width, depth and curvature of the heat dissipation and wear dust channel can be selected according to needs. The rotation direction of the brake disc is as follows: Figure 2 As indicated by the arrow

[0017] In addition, the present invention also makes rectangular spline teeth 3 in the shaft hole of the metal skeleton. The spline teeth cooperate with the spline sleeve, which can improve the installation and matching accuracy of the brake disc and facilitate the installation work.

Claims

1. A friction brake disc for a high-speed stacker truck, comprising a disc-shaped metal frame (1) and friction material layers (2) adhered to the upper and lower end surfaces of the frame; characterized in that: A plurality of concentrically arranged oblique tooth-shaped grooves (4) are respectively provided on the upper and lower end surfaces, and a plurality of oblique tooth-shaped convex strips corresponding to the oblique tooth shape are formed on the friction material layer; while the friction material layer is bonded and fixed to the bonding surface of the metal frame by an adhesive, the plurality of oblique tooth-shaped convex strips are filled into the corresponding oblique tooth-shaped grooves and bonded and fixed; a plurality of heat dissipation and wear dust channels (2.1) evenly distributed around the axis of the brake disc are also provided on the surface of the friction material layer, the plurality of heat dissipation and wear dust channels are arc-shaped, and the bending direction at one end of the outer diameter of the brake disc is opposite to the rotation direction of the brake disc, so as to facilitate the dissipation of heat and wear dust generated during the braking process.

2. The high-speed stacker friction brake disc according to claim 1, characterized in that: The angle (B) between the groove wall of the oblique tooth groove and the horizontal plane is 40-65 degrees.

3. The high-speed stacker friction brake disc according to claim 2, characterized in that: The heat dissipation and wear ash channel is arc-shaped, and the bending direction of the arc-shaped heat dissipation and wear ash channel at one end of the outer diameter of the brake disc is opposite to the rotation direction of the brake disc.

4. The high-speed stacker friction brake disc according to claim 3, characterized in that: Rectangular spline teeth (3) are made in the shaft hole of the metal skeleton.

Images