CN2769864Y

CN2769864Y - Seesaw weighing device

Info

Publication number: CN2769864Y
Application number: CN 200420075599
Authority: CN
Inventors: 朴世镇
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-12-31
Filing date: 2004-12-31
Publication date: 2006-04-05
Anticipated expiration: 2014-12-31

Abstract

The utility model relates to a seesaw balance which comprises a frame type base seat, a weighing panel and a sensor. The utility model is characterized in that the weighing panel is used as a seesaw, and the sensor is used as a pivot to form a seesaw type weighing structure. The utility model can accurately detect the actual weight of a carriage axle, the error of dynamic weighing is reduced and exact measurement data can be obtained.

Description

Seesaw weighing apparatus

Technical field

The utility model relates to field of measuring techniques, belongs to the physics weighing technology, particularly a kind of seesaw weighing apparatus that is used for dynamic vehicle axle load measurement.

Background technology

Traditional dynamic axle load meter is at four fulcrum places of weighing platform four sensors to be installed, when wheel just enters weighing platform, because the speed and the impulse force of vehicle, make data that sensor measures actual weight greater than vehicle, when vehicle moved on, the data that sensor goes out can slightly reduce, and left the moment of weighing platform when wheel, same speed and impulse force owing to vehicle, the data that sensor is measured are again greater than the axletree actual weight.Therefore in last data recording, as shown in Figure 9, can not obtain the actual weight of axletree exactly, in actual use, normally calculate the weight of axletree by the method for trying to achieve mean value, so the conventional dynamic axle load meter will reach relatively difficulty of higher dynamic performance index, precision is also lower.

Chinese patent discloses two kinds of truck scales, " dynamic electric automobile balance " (number of patent application: 99245954.0) disclose a kind of dynamic automobile scale that the acceleration sensing module is arranged, adopted the mode of Dynamic Signal compensation to solve the measuring accuracy problem; " the heavy dynamic weighing platform of full electronic axle " (number of patent application: 94246532.6) disclose the method that a kind of sensor that the triangle distribution is installed improves measuring accuracy under weighing platform.Above-mentioned two patented claims all are to improve aspect sensor or the weighing unit support, perhaps dealing with problems by information processing, rather than a secondary data of gathering, and its reliability is worth suspecting.

Summary of the invention

The purpose of this utility model is to utilize the seesaw principle that the seesaw weighing apparatus that a kind of structure is simple and clear, data are true and reliable, precision is higher is provided.

The purpose of this utility model realizes by following scheme: a kind of seesaw weighing apparatus, and it comprises the frame-type pedestal, weigh panel and sensor, the utility model is a seesaw with the panel of weighing, and is that fulcrum constitutes the seesaw type weighing structure with the sensor;

Described sensor and weigh steel ball is arranged between the panel, there is depression sensor and steel ball contact site;

Described sensor has 2, lays respectively at the below of panel cross central line near its two ends of weighing;

Described sensor has 4, is installed on the below of the panel cross central line of weighing respectively symmetrically;

Described sensor has 3, lays respectively at below and the mid point below of panel cross central line near two ends of weighing;

Described sensor is positioned at the below of panel cross central line near two ends of weighing;

Described sensor is positioned at the below that the panel of weighing departs from cross central line.

The utility model utilizes the seesaw principle, when wheel just enters weighing platform, owing to have and buffering with a certain distance from sensor, vehicle can not cause too big impulsive force to sensor, the data that sensor goes out are less than the axletree actual weight, when vehicle moves on, near more from sensor, the data that sensor is measured are big more, also more near the axletree actual weight, when vehicle by weighing panel moment vertical with sensor, sensor is measured maximum data, is the axletree actual weight, when vehicle leaves in the process of the panel of weighing, the data that sensor goes out reduce gradually, until being zero.Accompanying drawing 10 has provided a kind of load oscillogram of the utility model.

The utility model compared with prior art can be measured the actual weight of axletree accurately, greatly reduces the error of dynamic weighing, can obtain one-shot measurement data more accurately.

Description of drawings

Fig. 1 is the front view of a kind of structure of the utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the side view of Fig. 1;

Fig. 4 is the utility model single wheel sensing station synoptic diagram;

Fig. 5 is the double wheel sensor position view of the utility model;

Fig. 6 is a kind of sensing station synoptic diagram of the present utility model;

Fig. 7 is the another kind of sensing station synoptic diagram of the utility model;

Fig. 8 is the third sensing station synoptic diagram of the utility model;

Fig. 9 is the load oscillogram of conventional dynamic axle load meter;

Figure 10 is a load oscillogram of the present utility model.

Embodiment

As shown in the figure, the utility model comprises frame-type pedestal 1, weigh panel 2 and sensor 3, frame-type pedestal 1 is the rectangle one-piece construction, is embedded in advance during use among the concrete foundation, as the base support of the sensor and the panel 2 of weighing, the panel 2 of weighing is the plow-steel structure, cover during installation on general frame, keep level with the road surface, and leave certain interval between the framework, the panel of weighing is a seesaw, is that fulcrum constitutes the seesaw type weighing structure with the sensor.There is steel ball 4 panel 2 belows of weighing, and sensor installation 3 under the steel ball, above the sensor 3 depression arranged, in case steel ball moves.Can there be multiple mode the quantity and the position of sensor (comprising steel ball), as shown in Figure 4 to 7, be generally positioned at the panel cross central line below of weighing, single wheel as Fig. 4 distributes, Fig. 5 double taken turns distribution, three sensors of Fig. 6 distribute, and sensor also can depart from cross central line and distribute, as Fig. 7, shown in Figure 8.

Claims

1, a kind of seesaw weighing apparatus, it comprises frame-type pedestal (1), the panel of weighing (2) and sensor (3), it is characterized in that with the panel of weighing be seesaw, is that fulcrum constitutes seesaw (2) formula weighing structure with the sensor.

2, seesaw weighing apparatus as claimed in claim 1 is characterized in that described sensor and weighs that steel ball (4) is arranged between the panel, and there is depression sensor and steel ball contact site.

3, seesaw weighing apparatus as claimed in claim 1 or 2, the sensor (3) has 2, lays respectively at the below of the panel of weighing (2) cross central line near its two ends.

4, seesaw weighing apparatus as claimed in claim 1 or 2, the sensor (3) has 4, is installed on the below of the panel of weighing (2) cross central line respectively symmetrically.

5, seesaw weighing apparatus as claimed in claim 1 or 2, the sensor (3) has 3, lays respectively at below and the mid point below of the panel of weighing (2) cross central line near two ends.

6, seesaw weighing apparatus as claimed in claim 1 or 2, the sensor (3) are positioned at the below of the panel of weighing (2) cross central line near two ends.

7, seesaw weighing apparatus as claimed in claim 1 or 2, the sensor (3) is positioned at the below that the panel of weighing (2) departs from cross central line.