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Sectional microporous polyurethane buffer block and preparation method thereof

A buffer block and polyurethane technology, which is applied in the direction of mechanical equipment, shock absorbers, springs/shock absorbers, etc., can solve the problems of insufficient force deformation capacity and single density of buffer blocks, so as to improve the overall performance and increase the difficulty , the effect of high production efficiency

Pending Publication Date: 2020-12-22
洛阳凯众减震科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a segmented microporous polyurethane buffer block, the main purpose of which is to provide a solution to solve the problem of single density of the buffer block and failure of force deformation capacity to meet the design requirements, which can solve the problem without increasing product design , Difficulty in production and assembly

Method used

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  • Sectional microporous polyurethane buffer block and preparation method thereof
  • Sectional microporous polyurethane buffer block and preparation method thereof
  • Sectional microporous polyurethane buffer block and preparation method thereof

Examples

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Embodiment 1

[0038] Such as figure 1 As shown, the embodiment of the present invention provides a segmented multi-density microporous polyurethane buffer block, the buffer block is a hollow rotary body structure, composed of the first segment 1 (such as figure 2 ) and the second segment 2 (as image 3 shown) consists of two sections, the two sections are hollow rotary structures, the first section 1 has a flat joint surface 3, the second section 2 has a flat joint surface 4, the flat joint surface 3 and the flat joint surface The joint surfaces 4 are congruent, and there are central holes 5 on the central axes of the two segments, and the outer peripheral surfaces of the two segments are corrugated; the density of the first segment 1 is relatively small, being 0.4g / cm 3 , the density of the second segment 2 is relatively high, 0.55g / cm 3 .

[0039] When assembling the two sections, align the central holes 5 of the first section 1 and the second section 2, and superimpose them on the sa...

Embodiment 2

[0043] The embodiment of the present invention provides a segmented microporous polyurethane buffer block, which differs from the first embodiment in that the segments are connected in different ways. Such as Figure 6-8 As shown, the segmented microporous polyurethane buffer block of this embodiment is connected to form a whole using a chiseled structure. Fit to the recessed part of another segment to fit each other to form a whole.

[0044] The present invention also provides a method for preparing a segmented microporous polyurethane buffer block, taking Example 1 as an example, including steps:

[0045] a. design the mould, adopt the technology that the existing microcellular foam material is cross-linked and solidified and foamed to form polyurethane blocks, and produce the production blanks of the first subsection 1 and the second subsection 2 respectively (such as Figure 9 , 10 shown); there are two first segment 1 / second segment 2 on one said production blank;

[...

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Abstract

The invention provides a sectional microporous polyurethane buffer block. The sectional microporous polyurethane buffer block is of a hollowed revolving body structure and comprises at least two sections, wherein each section is of a hollowed revolving body structure, a central axis of each section is hollowed, the peripheral surface of each section is corrugated, the hollowed central axis of onesection and the hollowed central axis of the other section are aligned and overlapped on the same axis, and the sections are connected into a whole. Densities of the at least two sections can be different, and the at least two sections with different densities are combined to form the whole buffer block, so that the shock absorption performance requirement which cannot be met by a single-density buffer block is met. The invention further provides a preparation method of the sectional microporous polyurethane buffer block, and the difficulty of product design, production and assembly are not increased.

Description

technical field [0001] The invention relates to the design and production of shock-absorbing products suitable for vehicles, machinery, aerospace and daily life, in particular to a segmented microporous polyurethane buffer block. Background technique [0002] Microporous polyurethane buffer block has the advantages of good elasticity, large deformation, and can absorb large impact and vibration energy. Due to the excellent damping performance of this material, it has been widely used in the field of automobile manufacturing. The microporous polyurethane buffer block deforms when it is stressed. When the force changes, the microporous polyurethane buffer block will deform differently with the change of force. After the force disappears, the microporous polyurethane relies on its own elasticity to restore its shape, so it can play a role in absorbing vibration. In product design, density is one of the important reference indicators. For example, when used for automobile shock...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F7/108B29C65/48
CPCB29C65/48B29C66/45F16F7/108
Inventor 庞建军武应涛
Owner 洛阳凯众减震科技有限公司