CN112977629A - Cab B column - Google Patents

Cab B column Download PDF

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Publication number
CN112977629A
CN112977629A CN202110195959.5A CN202110195959A CN112977629A CN 112977629 A CN112977629 A CN 112977629A CN 202110195959 A CN202110195959 A CN 202110195959A CN 112977629 A CN112977629 A CN 112977629A
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CN
China
Prior art keywords
cab
parts
column
pillar
polyurethane
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Withdrawn
Application number
CN202110195959.5A
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Chinese (zh)
Inventor
赵虎辰
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Jiangsu Normal University
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Jiangsu Normal University
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Publication date
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Priority to CN202110195959.5A priority Critical patent/CN112977629A/en
Publication of CN112977629A publication Critical patent/CN112977629A/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/04—Door pillars ; windshield pillars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0815—Acoustic or thermal insulation of passenger compartments
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014—Use of organic additives
    • C08J9/0023—Use of organic additives containing oxygen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/009—Use of pretreated compounding ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • C08J9/103—Azodicarbonamide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • C08J2375/08—Polyurethanes from polyethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2293—Oxides; Hydroxides of metals of nickel
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/02—Ingredients treated with inorganic substances
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/04—Ingredients treated with organic substances

Abstract

The cab B column comprises a B column body, wherein the B column body is a hollow steel pipe, and a polyurethane seamless foaming agent is filled in the hollow part. The B column is filled with the seamless polyurethane foaming agent, so that the flame retardant, sound insulation and noise reduction effects are obvious, the sound insulation and noise reduction of a cab can be well realized, and the driving comfort and safety are improved.

Description

Cab B column
The invention is a divisional application, the original application number is 2018114844738, the application date is 2018, 12 and 06, and the invention name is a B column of a cab framework of a dump truck.
Technical Field
The invention relates to a B column of a vehicle cab framework.
Background
Along with the high-speed development of the engineering machinery industry in China, a plurality of huge heads of the engineering machinery in China are greatly widening the overseas market, and the engineering machinery products in China are enabled to move from China to the world, so that the requirement that the products have strong comprehensive performance and strong competitiveness is required. The requirements of all countries on the driving comfort of the mining dump truck are higher and higher, and the improvement of the comprehensive performance of the cab of the mining dump truck is imperative. The cab framework of the traditional mining dump truck is mostly of a hollow structure, has no shielding effect on external noise basically, and is poorer in driving comfort performance.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the cab framework B column which has obvious sound insulation and noise reduction effects, can well insulate sound and reduce noise of a cab, and improves driving comfort.
In order to achieve the purpose, the invention adopts the technical scheme that: a cab B-pillar comprising: the B column body is a hollow steel pipe, and a polyurethane seamless foaming agent is filled in the hollow part.
Furthermore, the cab is a dumper cab, the B-column body is of an inverted y-shaped structure, the inverted y-shaped structure is adopted, the structural stability of triangular modeling can be fully utilized, the strength and the rigidity of the B-column are improved by changing the modeling structure of the structural member, and therefore the passive safety of the mining dumper is improved. The seamless polyurethane foaming agent is an inorganic boron-nitrogen doped compound BN @ NiO.
The invention has the beneficial effects that: according to the invention, the polyurethane seamless foaming agent is filled in the B column, so that the flame retardant, sound insulation and noise reduction effects are obvious, the sound insulation and noise reduction of a cab can be well realized, and the driving comfort and safety are improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is another schematic structure of the present invention.
In the figure: 1. the column B comprises a column B body, 2, a filling opening, 3 and an air exhaust opening.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, a dump truck cab skeleton B-pillar includes: the B column body is a hollow steel pipe, and a polyurethane seamless foaming agent is filled in the hollow part.
When the foaming material is injected through the square injection port, air in the supporting piece is exhausted through the round exhaust port. The application of the foaming material can well play a role in damping and reducing noise of a cab, and greatly improves the driving comfort.
As shown in fig. 2, the B-pillar body can also adopt an inverted y-shaped structure, and has a good cab supporting effect and a safety protection effect.
The invention adopts the polyurethane seamless foaming agent as the flame-retardant polyurethane foaming material, takes the inorganic boron-nitrogen doped complex as the foam cell nucleating agent, forms a nonflammable carbon layer through the oxidation of expansion foaming action when the acetic acid-vinyl acetate copolymer is burnt, cuts off the interface contact with oxygen to effectively organize the continuous burning of the material, the inorganic boron-nitrogen doped complex forms a porous core-shell and forms a special gap with the foaming layer, the boron-nitrogen doped nickel element is synergistically superposed to have excellent flame-retardant effect, and the excellent pore channel performance greatly enhances the sound absorption effect under certain conditions.
Example 1
A preparation method of the flame-retardant polyurethane foam material comprises the following steps:
50 parts of isocyanate, 20 parts of ethylene-vinyl acetate copolymer, 20 parts of polyether polyol, 10 parts of di-n-butyl phthalate, 5 parts of foaming agent azodicarbonamide and 10 parts of inorganic boron-nitrogen doped complex, continuously stirring until the mixed liquid shows milky white phenomenon, stopping stirring,
and injecting the mixture into a foaming target cavity for foaming to obtain the polyurethane foaming material, wherein the temperature of the foaming target cavity is 35 ℃.
The preparation method of the inorganic boron-nitrogen doped compound BN @ NiO comprises the following steps:
step 1, respectively measuring 10 parts of absolute ethyl alcohol and 2 parts of nickel sulfate hexahydrate, and uniformly mixing to obtain a mixture A;
step 2, weighing 3 parts of boric acid and 4 parts of urea, mixing to obtain a mixture B,
step 3, mixing the obtained mixture A and the obtained mixture B to obtain a mixture C, adjusting the pH =7 of the mixture C, stirring to obtain a boron-nitrogen co-doped nickel oxide sol-gel precursor, and stirring for 2 hours at a stirring speed of 20 r/min;
and 4, standing after stirring to obtain boron-nitrogen co-doped nano nickel oxide wet gel, drying at 40 ℃, grinding, and calcining at 400 ℃ in a muffle furnace to obtain an inorganic boron-nitrogen doped compound BN @ NiO.
The oxygen index of the flame retardant property is 37, and the sound absorption coefficient of the frequency of 1000Hz-4000Hz is 0.92.
Example 2
The difference from example 1 is that: 40 parts of isocyanate, 25 parts of ethylene-vinyl acetate copolymer, 20 parts of polyether polyol, 10 parts of di-n-butyl phthalate, 5 parts of foaming agent azodicarbonamide and 10 parts of inorganic boron-nitrogen doped complex. The oxygen index of the flame retardant property was 30. The sound absorption coefficient of the frequency of 1000Hz-4000Hz is 0.91.
Example 3
The difference from example 1 is that: 50 parts of isocyanate, 20 parts of ethylene-vinyl acetate copolymer, 15 parts of polyether polyol, 10 parts of di-n-butyl phthalate, 5 parts of foaming agent azodicarbonamide and 10 parts of inorganic boron-nitrogen doped complex. The oxygen index of the flame retardant properties was 29. The sound absorption coefficient of the frequency of 1000Hz-4000Hz is 0.88.
Example 4
The difference from example 1 is that: the preparation method of the inorganic boron-nitrogen doped compound BN @ NiO comprises the following steps:
step 1, respectively measuring 10 parts of absolute ethyl alcohol and 2 parts of nickel sulfate hexahydrate, and uniformly mixing to obtain a mixture A;
step 2, weighing 3 parts of boric acid and 4 parts of urea, mixing to obtain a mixture B,
step 3, mixing the obtained mixture A and the obtained mixture B to obtain a mixture C, adjusting the pH =7 of the mixture C, stirring to obtain a boron-nitrogen co-doped nickel oxide sol-gel precursor, and stirring for 2 hours at a stirring speed of 20 r/min;
and 4, standing after stirring to obtain boron-nitrogen co-doped nano nickel oxide wet gel, drying at 40 ℃, grinding, and calcining in a muffle furnace at 400 ℃ in a nitrogen atmosphere to obtain an inorganic boron-nitrogen doped compound BN @ NiO. The oxygen index of the flame retardant property is 34, and the sound absorption coefficient of the frequency of 1000Hz-4000Hz is 0.98.
Comparative example 1
The difference from example 1 is that: no 10 parts of inorganic boron nitrogen doped complex was added. The flame retardant property has an oxygen index of 24 and an acoustic absorption coefficient of 0.81 at a frequency of 1000Hz to 4000 Hz.
Comparative example 2
The difference from example 1 is that: 10 parts of nano silicon are used for replacing the inorganic boron-nitrogen doped complex. The flame retardant property has an oxygen index of 26 and an acoustic absorption coefficient of 0.83 at a frequency of 1000Hz to 4000 Hz.
Comparative example 3
The difference from example 1 is that: the preparation method of the inorganic boron compound comprises the following steps:
step 1, respectively measuring 10 parts of absolute ethyl alcohol, uniformly mixing with 2 parts of nickel sulfate hexahydrate and 3 parts of boric acid, and preparing to obtain a mixture
Adjusting the pH =7 of the mixture, stirring to prepare a boron-nitrogen co-doped nickel oxide sol-gel precursor, and stirring for 2 hours at a stirring speed of 20 r/min;
and 4, standing after stirring to obtain the boron-nano nickel oxide wet gel, drying and grinding at 40 ℃, and calcining at 400 ℃ in a muffle furnace to obtain the inorganic boron composite nickel oxide. The flame retardant property has an oxygen index of 29 and an acoustic absorption coefficient of 0.83 at a frequency of 1000Hz to 4000 Hz.
Comparative example 4
The difference from example 1 is that: in the preparation method of the inorganic boron-nitrogen doped compound, 2 parts of ferric nitrate nonahydrate are used for replacing nickel sulfate hexahydrate. The flame retardant property has an oxygen index of 28 and an acoustic absorption coefficient of 0.88 at a frequency of 1000Hz to 4000 Hz.
Comparative example 5
The difference from example 1 is that: the inorganic boron-nitrogen doped compound is not added with 2 parts of nickel sulfate hexahydrate.
The oxygen index of the flame retardant property is 25, and the sound absorption coefficient of the frequency of 1000Hz-4000Hz is 0.85.
In conclusion, the inner cavity of the B column of the cab framework of the dump truck is made of flame-retardant polyurethane foam material, so that the flame-retardant effect and the sound absorption effect are excellent. The overall performance of the B column of the cab framework of the dump truck is integrally improved.

Claims (6)

1. The B column of the cab comprises a B column body and is characterized in that the B column body is a hollow tube, and polyurethane foaming materials are filled in the hollow tube.
2. The cab B-pillar of claim 1, wherein the hollow tube is a steel tube.
3. The cab B-pillar of claim 1, wherein the cab is a dump truck cab.
4. The cab B-pillar of claim 3, wherein the B-pillar body is an inverted y-shaped structure.
5. The cab B-pillar of claim 1, wherein the seamless polyurethane foam is a flame retardant polyurethane foam.
6. The cab B-pillar of claim 1, wherein the polyurethane seamless foam is an inorganic boron nitrogen doped composite BN @ NiO.
CN202110195959.5A 2018-12-06 2018-12-06 Cab B column Withdrawn CN112977629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110195959.5A CN112977629A (en) 2018-12-06 2018-12-06 Cab B column

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110195959.5A CN112977629A (en) 2018-12-06 2018-12-06 Cab B column
CN201811484473.8A CN109501866A (en) 2018-12-06 2018-12-06 Dumper cab framework B column

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201811484473.8A Division CN109501866A (en) 2018-12-06 2018-12-06 Dumper cab framework B column

Publications (1)

Publication Number Publication Date
CN112977629A true CN112977629A (en) 2021-06-18

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Family Applications (2)

Application Number Title Priority Date Filing Date
CN201811484473.8A Pending CN109501866A (en) 2018-12-06 2018-12-06 Dumper cab framework B column
CN202110195959.5A Withdrawn CN112977629A (en) 2018-12-06 2018-12-06 Cab B column

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201811484473.8A Pending CN109501866A (en) 2018-12-06 2018-12-06 Dumper cab framework B column

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Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6929312B2 (en) * 2003-10-17 2005-08-16 General Motors Corporation Duct/frame element assemblages and methods of assembling ducts and frame elements
DE102007038659A1 (en) * 2007-08-15 2009-02-19 Henkel Ag & Co. Kgaa Expandable filler insert for filling hollow spaces, comprises self-supporting continuous structure including polymer matrix containing polymer(s) or polymer precursor and latent blowing agent(s), and spacer and/or fixing element
CN201784696U (en) * 2010-08-31 2011-04-06 江苏奔宇车身制造有限公司 Low-noise environment-friendly energy-saving cab for construction machinery
CN102432917A (en) * 2011-09-03 2012-05-02 四川大学 Halogen-free flame retardant additive, and soft and hard polyurethane foams and elastic body retarding flame by using same
CN202827767U (en) * 2012-09-04 2013-03-27 芜湖海程橡塑有限公司 Passenger car B column soundproof expansion glue
EP2883781A1 (en) * 2013-12-13 2015-06-17 Sika Technology AG Lightweight baffle or reinforcement element and method for producing such a lightweight baffle or reinforcement element
CN203714005U (en) * 2013-12-15 2014-07-16 陕西同力重工股份有限公司 Mining dump vehicle cab framework
PL408610A1 (en) * 2014-06-18 2015-12-21 Novapur Spółka Z Ograniczoną Odpowiedzialnością Method for producing ecological polyols from the wastes for transesterification of vegetables oils and method for manufacturing stiff polyurethane foams
CN205010353U (en) * 2015-10-10 2016-02-03 江苏友邦精工实业有限公司 Machineshop car driver's cabin skeleton
CN107955124B (en) * 2016-10-14 2020-07-03 南京大学 High-strength flame-retardant rigid polyurethane foam prepared from boron-nitrogen-containing polycyclic polyether polyol and preparation method thereof

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