CN201218778Y

CN201218778Y - Material sampler

Info

Publication number: CN201218778Y
Application number: CNU2008200993103U
Authority: CN
Inventors: 李传兵; 靳红英; 刘宏玉; 亢潘
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Chongqing Changan Automobile Co Ltd
Priority date: 2008-06-30
Filing date: 2008-06-30
Publication date: 2009-04-08
Anticipated expiration: 2018-06-30

Abstract

This utility model refers to a material sampling machine for acoustic material detection, which is composed of a rack, a hydraulic jack, a guide pillar, a balance plate, a spring, a cutter and a shim plate. The guide pillar is vertically fixed and connected to upper and lower transverse pillars of the rack. The balance plate is sleeved on the guide pillar. The guide pillar below the balance plate is equipped with the spring. The hydraulic jack is fixedly installed on the upper transverse pillars as well as the lower end is pressed on the balance plate. The cutter is connected below the balance plate and is in the shape of tube, with the inner diameter same with the inner diameter of an impedance tube of the detection material. The shim plate is mounted on the lower transverse pillar. This material sampling machine can guarantee that the diameter of the material sample is the same with the inner diameter of the impedance tube, the flatness of the section and the consistency of the sample so as to guarantee the accuracy of the material performance parameter detection and to reduce the test cost and the test time.

Description

A kind of material sampler

Technical field

The utility model relates to material acoustics performance test field, is specifically related to the material sampler.

Background technology

Along with the continuous development of Hyundai Motor technology, the vibration noise performance of automobile has become one of important performance indexes of automobile.The use of acoustical material and material be one of principal element that influences internal car noise size and sound quality every sound absorbing capabilities.When using the impedance tube method to carry out the acoustics parameters test of material, different impedance calibers requires different material exemplar diameters, the planarization of the internal diameter size of sampling material and material sampling section directly influences the accuracy of material acoustics parameter testing, and manual sampling is difficult to guarantee material exemplar material sample footpath and the consistance of impedance tube internal diameter and the planarization of section.

Summary of the invention

The purpose of this utility model proposes a kind of material sampler that acoustical material detects that is used for, guarantee that material exemplar diameter is consistent with the impedance tube internal diameter, the planarization of section, and the consistance of assurance exemplar, to guarantee the accuracy of material property parameter test, thereby test period is shortened in reduction experimentation cost.

The technical solution adopted in the utility model is as follows:

A kind of material sampler, it is made up of frame, hydraulic jack, guide pillar, balance plate, spring, cutter and backing plate; Described frame is the framed structure that upper and lower spreader and left and right pillar constitute, the guide pillar vertical fixing is connected between the upper and lower spreader, on the balance plate suit guide pillar, on the guide pillar below the balance plate spring is installed, the hydraulic jack stationary installation is on last spreader, and the lower end is pressed in the balance plate top, and cutter is by being threaded in the balance plate below, pallet device is on following spreader, and is corresponding with the tool position; Described cutter is tubular, and its internal diameter is identical with the impedance tube internal diameter of test material.

Carry out material when sampling, material is placed on the backing plate, hydraulic jack work promotes the balance plate motion, and balance plate moves downward along guide pillar, moves downward material is cut off thereby drive cutter.

The utility model is simple in structure, and is easy to operate, can guarantee the consistance of material exemplar, and can be applicable to the not sampling of same piece.

Description of drawings

Fig. 1 is a material sampler front view;

Fig. 2 is a material sampler vertical view;

Fig. 3 is a material sampler A-A sectional view;

Fig. 4 is the balance plate structural representation;

Fig. 5 is a balance plate B-B sectional view.

Embodiment

As Fig. 1, Fig. 2 and shown in Figure 3, the material sampler is made up of frame 7, hydraulic jack 1, guide pillar 2, balance plate 3, spring 4, cutter 5 and backing plate 6.Frame: by spreader and left and right pillar constitute up and down.Frame 7 is the framed structure that upper and

lower spreader

71,72 and left and

right pillar

73,74 constitute, and two guide pillar 2 vertical fixing are connected between upper and

lower spreader

71 and 72, is used to guide the balance plate motion, and the guide pillar surface accuracy is had relatively high expectations.Balance plate 3 is led and is contained on the guide pillar 2, sees Fig. 3 and Fig. 4, has inlayed a bolt in the middle of balance plate, be used to connect cutter 5, the balance plate two ends are thicker, are convenient to like this guarantee that balance plate is horizontal at the volley, and the through-hole inner surface accuracy requirement of balance plate two ends is higher.On the following guide pillar of balance plate spring 4 is installed, spring 4 can balance support plate 3, controls the motion of balance plate 3 simultaneously, needs to consider the route problem of spring in the design, the position that guarantees to allow balance plate move to material is cut off.Hydraulic jack 1 stationary installation is on last spreader 71, and the lower end is pressed in balance plate 3 tops, and hydraulic jack adopts existing hydraulic jack, lifting jack load-carrying 10t, minimum altitude 200mm, lifting altitude 120mm.Backing plate 6 devices are on following spreader 72.Cutter 5 is tubular, and its internal diameter is identical with the impedance tube internal diameter of test material, and multiple model can be arranged, and as internal diameter 100mm and 29mm, mainly is to require exemplar internal diameter parameter setting according to the impedance tube of being bought.In addition, for further guaranteeing material when sampling, frame can be reliable and stable, can also bearing 8 be set in frame lower.

During use, material is placed on the backing plate 6, hydraulic jack 1 work promotes balance plate 3 motions, and balance plate 3 moves downward along guide pillar 2, moves downward material is cut off thereby drive cutter 5.

Claims

1, a kind of material sampler, it is characterized in that: it is made up of frame, hydraulic jack, guide pillar, balance plate, spring, cutter and backing plate; Described frame is the framed structure that upper and lower spreader and left and right pillar constitute, the guide pillar vertical fixing is connected between the upper and lower spreader, on the balance plate suit guide pillar, on the guide pillar below the balance plate spring is installed, the hydraulic jack stationary installation is on last spreader, and the lower end is pressed in the balance plate top, and cutter is connected the balance plate below, pallet device is on following spreader, and is corresponding with the tool position; Described cutter is tubular, and its internal diameter is identical with the impedance tube internal diameter of test material.