阅读说明：本技术 一种m-2型摩擦片磨损声学报警器制备方法 (Preparation method of M-2 type friction plate abrasion acoustic alarm ) 是由 杨小凤 戴国建 李邵伟 陈金火 刘慧� 许艺 刘金乾 于 2020-10-21 设计创作，主要内容包括：本发明属于摩擦片生产加工技术领域,具体涉及一种M-2型摩擦片磨损声学报警器制备方法,包括以下步骤：(1)、物料A的制备：按重量份称取1-3份石墨烯、10-35份丁苯胶、1-3份配合剂和6-15份树脂混合进行热处理,混合均匀放入密炼机中进行密炼,形成物料A；(2)、物料B的制备：按重量份称取的10-20份碳纳米管、8-9份纳米硅酸稀土盐、5-25份高岭土、1-10份二硫化钼及1-12份摩擦粉在混合前送入结块分离机构中,充分搅拌、混合后得物料B；(3)、混合；(4)、挤压成型(5)铆接钢琴丝：成型后,将钢琴丝铆接在摩擦片即可。本发明利用琴钢丝,通过弯曲最佳发声角度,铆接到摩擦片上；当摩擦片磨损到极限状态时,声学报警器开始工作,提醒驾驶员更换摩擦片。(The invention belongs to the technical field of friction plate production and processing, and particularly relates to a method for manufacturing an M-2 type friction plate abrasion acoustic alarm, which comprises the following steps: (1) and preparing a material A: weighing 1-3 parts of graphene, 10-35 parts of butadiene styrene rubber, 1-3 parts of compounding agent and 6-15 parts of resin according to parts by weight, mixing, performing heat treatment, uniformly mixing, and banburying in a banbury mixer to form a material A; (2) and preparing a material B: 10-20 parts of carbon nano tube, 8-9 parts of nano rare earth silicate, 5-25 parts of kaolin, 1-10 parts of molybdenum disulfide and 1-12 parts of friction powder which are weighed according to parts by weight are sent into a caking separation mechanism before mixing, and a material B is obtained after full stirring and mixing; (3) mixing; (4) and (5) extruding and forming to rivet piano wire: after molding, the piano wire is riveted on the friction plate. The piano wire is riveted on the friction plate by bending the optimal sounding angle; when the friction plate is worn to the limit state, the acoustic alarm starts to work to remind a driver to replace the friction plate.)

1. A preparation method of an M-2 type friction plate abrasion acoustic alarm is characterized by comprising the following steps:

(1) and preparing a material A: weighing 1-3 parts of graphene, 10-35 parts of butadiene styrene rubber, 1-3 parts of compounding agent and 6-15 parts of resin according to parts by weight, mixing, performing heat treatment, uniformly mixing, putting into an internal mixer for internal mixing, and then putting the mixed body after internal mixing into an open mill for mixing to form a material A;

(2) and preparing a material B: 10-20 parts of carbon nano tube, 8-9 parts of nano rare earth silicate, 5-25 parts of kaolin, 1-10 parts of molybdenum disulfide and 1-12 parts of friction powder which are weighed according to parts by weight are sent into a caking separation mechanism before mixing, and a material B is obtained after full stirring and mixing;

(3) and mixing and banburying: adding the weighed carbon fibers and the mixed raw materials obtained in the step (1) and the step (2) into a high-speed stirrer with a reamer, mixing for 11-16 min, adding an inorganic binder, and continuously mixing for 18-32 min to obtain a mixed raw material C;

(4) and extrusion forming: carrying out extrusion forming on the mixed raw material C in the step (3);

(5) riveting piano wires: after molding, the piano wire is riveted on the friction plate.

2. The method for preparing an acoustic alarm for abrasion of an M-2 type friction plate according to claim 1, wherein: and (4) performing extrusion forming in the step (4) by adopting a 600-ton single-layer hot press, performing die assembly and pressurization to form and thermally cure the single-layer hot press in a pressed film, putting the single-layer hot press into a hot pressing die for hot pressing, and performing compression forming at 103-147 ℃ under the condition that the unit pressure is 30-43 MPa.

3. The method for preparing an acoustic alarm for abrasion of an M-2 type friction plate according to claim 1, wherein: and (2) when the banburying temperature in the step (1) is 130-160 ℃, preserving heat for 21-32 min, then heating to 170-250 ℃, preserving heat for 21-32 min, and finally cooling to 20-30 ℃.

4. The method for preparing an acoustic alarm for abrasion of an M-2 type friction plate according to claim 1, wherein: and, in step (2), junction block separating mechanism includes the separator box, separator box one side is equipped with the feed inlet, and separator box bottom is equipped with the discharge gate, is located the feed inlet inside be equipped with the disengagement chamber that is linked together and is used for the material separation with the feed inlet in the separator box, the disengagement chamber is the slope downwards form, and the disengagement chamber bottom is for running through the formula, and the disengagement chamber bottom is equipped with a plurality of separation nets that are used for the separation, and is adjacent be equipped with the connecting piece that is connected between the separation net, be located two in the outside the separation net outside is connected fixedly through connecting piece and corresponding feed inlet and disengagement chamber end respectively, is located corresponding separation net bottom be equipped with the vibrating mechanism who is used for driving the vibration of separation net in the separator box.

Technical Field

The invention belongs to the technical field of friction plate production and processing, and particularly relates to a preparation method of an M-2 type friction plate abrasion acoustic alarm.

Background

The friction plate is an assembly consisting of a chip and a friction lining or a friction material layer, and is widely applied to the fields of mechanical engineering, mechanical parts and clutches.

Uneven wear of the friction plates of an automotive disc brake is a frequent engineering problem in the braking process of automobiles. The new regulation GB7258-2018 requirements of technical conditions for safety of motor vehicle operation, and the brake has to have an acoustic or optical alarm function when the automobile friction plate is worn to the limit.

For this reason we have developed an acoustic alarm for wear of the friction plates.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a method for manufacturing an acoustic alarm for abrasion of an M-2 type friction plate.

In order to achieve the purpose, the invention adopts the following technical scheme:

a preparation method of an M-2 type friction plate abrasion acoustic alarm comprises the following steps:

(1) and preparing a material A: weighing 1-3 parts of graphene, 10-35 parts of butadiene styrene rubber, 1-3 parts of compounding agent and 6-15 parts of resin according to parts by weight, mixing, performing heat treatment, uniformly mixing, putting into an internal mixer for internal mixing, and then putting the mixed body after internal mixing into an open mill for mixing to form a material A;

(2) and preparing a material B: 10-20 parts of carbon nano tube, 8-9 parts of nano rare earth silicate, 5-25 parts of kaolin, 1-10 parts of molybdenum disulfide and 1-12 parts of friction powder which are weighed according to parts by weight are sent into a caking separation mechanism before mixing, and a material B is obtained after full stirring and mixing;

(3) and mixing and banburying: adding the weighed carbon fibers and the mixed raw materials obtained in the step (1) and the step (2) into a high-speed stirrer with a reamer, mixing for 11-16 min, adding an inorganic binder, and continuously mixing for 18-32 min to obtain a mixed raw material C;

(4) and extrusion forming: carrying out extrusion forming on the mixed raw material C in the step (3);

(5) riveting piano wires: after molding, the piano wire is riveted on the friction plate.

Preferably, the extrusion molding in the step (4) adopts a 600-ton single-layer hot press to carry out die assembly and pressurization, so that the extrusion molding is carried out in a pressed film and is thermoset, the extrusion molding is carried out in a hot pressing die, and the compression molding is carried out at 103-147 ℃ and under the unit pressure of 30-43 MPa.

Preferably, the banburying temperature in the step (1) is 130-160 ℃, the heat preservation is carried out for 21-32 min, then the mixture is heated to 170-250 ℃ and is carried out for 21-32 min, and finally the mixture is cooled to 20-30 ℃.

Preferably, the junction block separating mechanism in the step (2) comprises a separating box, a feed inlet is formed in one side of the separating box, a discharge outlet is formed in the bottom of the separating box, a separating cavity which is communicated with the feed inlet and used for material separation is formed in the separating box and located inside the feed inlet, the separating cavity is inclined downwards, the bottom of the separating cavity is in a penetrating mode, a plurality of separating nets used for separation are arranged at the bottom of the separating cavity, connecting pieces connected with the adjacent separating nets are arranged between the adjacent separating nets, the outer sides of the two separating nets located on the outer sides are respectively connected and fixed with the corresponding feed inlet and the end of the separating cavity through the connecting pieces, and a vibrating mechanism used for driving the separating nets to vibrate is arranged in the separating box located at the bottom;

furthermore, the vibration mechanism comprises cams and connecting shafts, the bottom of each separating net is provided with a rotatable connecting shaft, and the connecting shafts are provided with a plurality of cams fixedly connected;

further, the size of the cam is gradually increased toward the direction in which the separation chamber is inclined downward.

Furthermore, the connecting shafts are respectively movably connected with the inner walls of the corresponding separation boxes, driving motors fixedly connected with the outer sides of the separation boxes are arranged, and the output ends of the driving motors are respectively connected with the corresponding connecting shafts through chains.

Furthermore, the connecting piece is a rubber sheet, and the outer side of the connecting piece is respectively connected with the inner wall of the separation cavity in a sliding manner.

Furthermore, the inner wall of the separation cavity is provided with adjusting grooves matched with the separation net, and the separation net is connected in the adjusting grooves in a sliding mode.

Furthermore, the outer sides of the separation boxes are provided with fixing frames for supporting.

Compared with the prior art, the invention has the following technical effects:

the piano wire is riveted on the friction plate by bending the optimal sounding angle; when the friction plate is worn to the limit state, the acoustic alarm starts to work to remind a driver to replace the friction plate.

Drawings

FIG. 1 is a schematic view of a process flow provided by the present invention;

FIG. 2 is a schematic front view of the cake separating mechanism according to the present invention;

FIG. 3 is a schematic bottom view of the separation net and cam of FIG. 2 according to the present invention;

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further clarified by combining the specific drawings.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

A preparation method of an M-2 type friction plate abrasion acoustic alarm comprises the following steps:

referring to fig. 1, (1), weighing 1-3 parts of graphene, 10-35 parts of butadiene styrene rubber, 1-3 parts of compounding agent and 6-15 parts of resin according to parts by weight, mixing, performing heat treatment, uniformly mixing, putting into an internal mixer for internal mixing, and then putting the mixed body after internal mixing into an open mill for mixing to form a material A;

(2) 10-20 parts of carbon nano tube, 8-9 parts of nano rare earth silicate, 5-25 parts of kaolin, 1-10 parts of molybdenum disulfide and 1-12 parts of friction powder which are weighed according to parts by weight are sent into a caking separation mechanism before mixing, and a material B is obtained after full stirring and mixing;

(3) mixing the weighed carbon fibers with the materials obtained in the step (1) and the step (2), adding the mixture into a high-speed stirrer with a reamer, mixing for 11-16 min, adding an inorganic binder, and continuously mixing for 18-32 min to obtain a mixed raw material C;

(4) carrying out extrusion forming on the mixed raw material C in the step (3);

(5) and after molding, riveting the piano wire on the friction plate.

Preferably, the extrusion molding in the step (4) adopts a 600-ton single-layer hot press to carry out die assembly and pressurization, so that the extrusion molding is carried out in a pressed film and is thermoset, the extrusion molding is carried out in a hot pressing die, and the compression molding is carried out at 103-147 ℃ and under the unit pressure of 30-43 MPa.

Preferably, the banburying temperature in the step (1) is 130-160 ℃, the heat preservation is carried out for 21-32 min, then the mixture is heated to 170-250 ℃ and is carried out for 21-32 min, and finally the mixture is cooled to 20-30 ℃.

Example 2

The same points as those in example 1 are not repeated, and the difference from example 1 is that:

referring to fig. 2-3, the junction block separating mechanism in step (2) includes a separating box 1, a feed inlet 11 is formed in one side of the separating box 1, a discharge outlet 12 is formed in the bottom of the separating box 1, a separating cavity 14 which is communicated with the feed inlet 11 and used for material separation is formed in the separating box 1 and located inside the feed inlet 11, the separating cavity 14 is inclined downward, the bottom of the separating cavity 14 is in a penetrating type, a plurality of separating nets 23 used for separation are arranged at the bottom of the separating cavity 14, connecting members 4 connected with each other are arranged between adjacent separating nets 23, the outer sides of the two separating nets 23 located on the outer sides are respectively connected and fixed with the end portions of the corresponding feed inlet 11 and the corresponding separating cavity 14 through the connecting members 4, and a vibrating mechanism used for driving the separating nets 23 to vibrate is arranged in the separating box 1 located at the;

further, the vibration mechanism comprises cams 21 and connecting shafts 22, the bottom of each separating net 23 is provided with the rotatable connecting shaft 22, and the connecting shafts 22 are provided with a plurality of cams 21 fixedly connected;

further, the size of the cam 21 is gradually increased toward the direction in which the separation chamber 14 is inclined downward.

The inclined separation cavity is utilized, materials can slide down through gravity after entering the separation cavity, the separation efficiency of the separation net is improved, meanwhile, the design of the cam can vibrate in the process of material sliding, the separation efficiency is further improved, the design of the connecting piece enables different separation nets to be free of mutual influence during vibration, the design of the cam size increasing is realized, the vibration amplitude of the cams in different sizes is different, the larger the cam is, the larger the vibration amplitude is, the smaller the distance between the separation net and the upper inner wall of the separation cavity is, when the materials with larger agglomerates are not separated, the larger the vibration amplitude is, the separation of material agglomerates is more effective, the same size particles of the materials after integral separation is ensured, and the design of the cam increasing is realized, the materials are arranged at the feed inlet section, and can vibrate through the gravity and the small amplitude of the cam, and most of the materials which do not need deep separation can be separated, the separation is carried out through the separation net, and the material of great caking is through the form of extrusion step by step, carries out extrusion separation in proper order, and pressure when can the unified extrusion separation of effectual reduction has improved overall efficiency.

Further, the connecting shafts 22 are respectively movably connected with the inner walls of the corresponding separating boxes 14, driving motors 15 fixedly connected are arranged on the outer sides of the separating boxes 14, and the output ends of the driving motors 15 are respectively connected with the corresponding connecting shafts 22 through chains 16.

Furthermore, the connecting piece 4 is a rubber sheet, and the outer side of the connecting piece 4 is respectively connected with the inner wall of the separation cavity 14 in a sliding manner.

The rubber sheet has good toughness and buffering performance, and the fact that the overall operation is not affected by different vibration amplitudes of the adjacent separation nets 23 is effectively guaranteed.

Furthermore, the inner walls of the separation chambers 14 are provided with adjusting grooves 141 matched with the separation net 23, and the separation net 23 is slidably connected in the adjusting grooves 141.

Further, the outer sides of the separation boxes 1 are provided with fixing frames 13 for supporting.

Example 2

The invention relates to a preparation method of an acoustic alarm for abrasion of an M-2 type friction plate, which comprises the following steps of:

the foregoing shows and describes the general principles, essential features, and inventive features of this invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.