CN101419105B - Shaft part force measuring device - Google Patents

Abstract

The invention relates to a force-measuring device for a shaft component, which is suitable for testing the radial force of the shaft component. The force-measuring device for the shaft component consists of a square force-measuring support, pressure sensors which are arranged on four surfaces of the square force-measuring support, T-shaped bolts which symmetrically pass through the four surfaces of the square force-measuring support by means of crossing, bearing pressure rings which are connected to tops of the T-shaped bolts, and a bearing which is sleeved on a shaft, wherein the bearing pressure rings are attached to the bearing; and tails of the T-shaped screws are in threaded connection with the pressure sensor. When the force-measuring device for the shaft component is operated, the radial force exerted on the shaft is transmitted to the bearing, and the radial force exerted on the bearing is transmitted to the pressure sensor through the bearing pressure rings and the bolts, so that data is measured. The force-measuring device for the shaft component has a simple structure, is convenient and economic to use, only needs to purchase the pressure sensor which is suitable for the range of the radial force of the shaft to be measured, and is more convenient to use and maintain compared with a collecting ring.

Description

A force measuring device for shaft parts

technical field

The invention relates to a force measuring device for shaft parts, especially suitable for testing the radial force of shaft parts.

Background technique

In mechanical engineering, due to the unbalanced force of the shaft parts, the shaft will bend, fatigue and fracture, which will affect the normal operation of the equipment. Therefore, such shafts need to be tested to ensure the safety of use in engineering. However, since the force sensor for measuring shaft parts needs to be installed on the shaft, the problem of the strain gauge rotating with the shaft and the fixed strain gauge must be solved to measure the force on the shaft. At present, the method of measuring the axis is to use the collector ring to measure, but the manufacturing cost of the collector ring is high, the structure is complex, and the maintenance and use requirements are high. It is uneconomical and unreasonable for the collection of some common data, and it is used for a long time. High calorific value.

Contents of the invention

The purpose of the present invention is to overcome the problems existing in the prior art and provide a force measuring device for shaft parts with simple structure, convenient use, low price and good effect

The force-measuring device for shaft parts of the present invention consists of a square frame-shaped force-measuring support, pressure sensors arranged on the four surfaces of the square-shaped force-measuring support, which pass through the four surfaces of the frame-shaped force-measuring support symmetrically in a cross shape The T-shaped bolt, the bearing pressure ring connected to the top of the T-shaped bolt and the bearing sleeved on the shaft, the bearing pressure ring is attached to the bearing, and the tail of the T-shaped bolt is threaded with the pressure sensor.

The bottom of the bearing pressure ring is provided with an arc groove matching the outer diameter of the bearing; the upper part of the bearing pressure ring is provided with a dovetail groove matching with T-shaped bolts.

The shaft part force measuring device of the present invention is most suitable for testing the radial force of the shaft part. It consists of a force measuring bracket, a pressure sensor, bolts, bearing pressure rings, bearings, shafts and screws. Wherein the bottom of the bearing pressure ring is provided with an arc groove, and the radius of the arc groove is the same as that of the outer ring of the bearing. The arc groove is in contact with the outer ring of the bearing, and there are 4 bearing pressure rings evenly distributed on the circumference of the bearing, which are connected to the pressure sensor by bolts, and the periphery of the pressure sensor is fixed on the force measuring bracket by screws. During operation, the radial force on the shaft is transmitted to the bearing, and the radial force on the bearing is transmitted to the pressure sensor through the bearing pressure ring and bolts, and then the measured data is obtained. Its structure is simple, easy to use, and economical. It only needs to purchase a pressure sensor suitable for the radial force range of the measured shaft, which is more convenient to use and maintain than the collector ring.

Description of drawings

Fig. 1 is a structural front view of the present invention.

Fig. 2 is a left view of the structure of the present invention.

Fig. 3 is a top view of the structure of the present invention.

Fig. 4 is a structural view of the bearing pressure ring of the present invention.

In the figure: 1-force measuring bracket, 2-pressure sensor, 3-T-shaped bolt, 4-bearing pressure ring, 5-bearing, 6-shaft, 4-1-arc groove, 4-2-dovetail groove.

Detailed ways

The present invention will be further described below in conjunction with the embodiment in the accompanying drawings:

As shown in Figures 1 to 3, the force measuring device for shaft parts of the present invention consists of a square frame-shaped force measuring support 1, a pressure sensor 2, a T-shaped bolt 3, a bearing pressure ring 4 and a bearing that is sleeved on the shaft 6. 5 components, wherein: the pressure sensor 2 is set on the four surfaces of the square frame-shaped force-measuring bracket 1, and the T-shaped bolt 3 penetrates into the frame-shaped force-measuring bracket 1 symmetrically in a cross shape, and is connected with the bearing 5 through the bearing pressure ring 4. Cooperate, the tail of the T-shaped bolt 3 is threadedly connected with the pressure sensor 2, and when the T-shaped bolt 3 is stressed, the signal is transmitted through the pressure sensor 2. The bottom of the bearing pressure ring 4 is provided with an arc groove 4-1 matching the outer diameter of the bearing 5, as shown in Figure 4(b); the upper part of the bearing pressure ring 4 is provided with a dovetail groove 4 matching the head of the T-bolt 3 -2, as shown in Figure 4(a). During operation, the radial force on the shaft 6 is transmitted to the bearing 5, and the radial force on the bearing 5 is transmitted to the pressure sensor 2 through the bearing pressure ring 4 and the bolt 3, and then the data is measured.

Claims (2)

1. A force-measuring device for shaft parts, characterized in that: it consists of a square frame-shaped force-measuring bracket (1), and pressure sensors (2) arranged on the four faces of the square-frame-shaped force-measuring bracket (1), in the form of The cross shape symmetrically passes through the T-shaped bolts (3) in the four faces of the square frame-shaped force measuring bracket (1), the bearing pressure ring (4) connected to the top of the T-shaped bolt (3) and the sleeve on the shaft (6) The bearing (5) on the upper part is formed, the bearing pressure ring (4) fits on the bearing (5), and the afterbody of the T-shaped bolt (3) is threadedly connected with the pressure sensor (2). 2. The force measuring device for shaft parts according to claim 1, characterized in that: the bottom of the bearing pressure ring (4) is provided with an arc groove (4-1) matching the outer diameter of the bearing (5) ; The upper part of the bearing pressure ring (4) is provided with a dovetail groove (4-2) matched with the T-shaped bolt (3).

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