CN106153230A - A kind of object release recoil measurement apparatus - Google Patents

Abstract

The invention belongs to object release test recoil field of measuring technique, be specifically related to a kind of object release recoil measurement apparatus, it is therefore an objective to solve existing apparatus when measuring object release recoil, the relatively low problem of certainty of measurement.It is characterized in that, it includes pedestal, back seat, front support, band, control tower mounting bracket, pull bar, push rod, force snesor, ignition frock and testpieces.The present invention can be made to be released object and back seat reliable contacts by the compression degree of 4 pull bar regulation force snesor, can accurately be measured the recoil of object release；By design dynamometry frock and dynamometry push rod, need in testing to survey recoil with 4 force snesor in the past, 4 recoils are synthesized the test method of a recoil by the method being processed by data after off-test, it is improved to only with a force sensor measuring recoil, avoid owing to collector interchannel exists phase difference, in turn result in the situation making a concerted effort there is also bigger error calculating.

Description

An object release recoil measuring device

technical field

The patent of the present invention belongs to the technical field of recoil force measurement of object release test, and specifically relates to a device for measuring recoil force of object release.

Background technique

The release of the object is a transient process. The transient release of the object will affect other components, and it is necessary to accurately measure the recoil force generated after the object is released. The measurement of the recoil force of an object is an important task in scientific research experiments. The recoil force generated by the release of the object is dynamically measured to determine that the recoil force will not cause destructive damage to other components, so as to judge whether the object can meet the use requirements.

When the existing object release recoil measurement device measures the recoil in the object release experiment, it needs to use 4 force sensors to measure the recoil, and after the test is over, the 4 recoils are synthesized into one recoil by means of data processing. Due to the phase difference between the collector channels, the calculated resultant force also has a large error, which cannot meet the measurement accuracy requirements.

Contents of the invention

The object of the present invention is to solve the problem of low measurement accuracy of the existing device when measuring the recoil force of an object release, and provides a recoil force measuring device for object release by using a connecting rod, a push rod and a force sensor to accurately measure the recoil force of an object release.

The present invention is achieved like this:

A device for measuring the recoil force when an object is released, comprising a base, a rear seat, a front support, a strap, a tower installation bracket, a pull rod, a push rod, a force sensor, an ignition tool and a test piece; the lower end of the base is fixed on the ground; the rear seat It is fixed on the left side of the front end of the base; the tower mounting bracket is fixed on the right end of the rear seat; the front support is fixed on the right side of the front end of the base; the strap is installed on the front end of the front support; On the base; the right end of the ejector rod is fixedly connected with the left end of the firing tooling, and the left end is set with a force sensor; the right end of the force sensor is in close contact with the ejector rod, and the left end is in close contact with the tower mounting bracket; the right end of the pull rod passes through the ejector rod and is connected to the ignition tooling The left end is fixedly connected, and the left end is threaded with the tower mounting bracket.

The main part of the ejector rod as mentioned above is cylindrical, and the right end of the main part is provided with an "H" shaped mounting plate; the left end of the main part of the ejector rod is provided with a cylindrical boss; the four corners of the ejector rod mounting plate are provided with tie rod holes .

The above-mentioned force sensor adopts a piezoelectric force sensor, which is ring-shaped as a whole.

The above-mentioned pull rods are cylindrical as a whole, and there are four of them, and a fixed nut is installed on the left end.

The ignition frock as described above has a cylindrical shape with an opening to the right as a whole, and an pyrotechnic device is arranged at the bottom of the cylinder.

The above-mentioned base, rear seat, front support, hoop, tower mounting bracket, pull rod, ejector rod and firing frock are all made of stainless steel.

The beneficial effects of the present invention are:

The invention comprises a base, a rear seat, a front support, a band, a tower installation bracket, a pull rod, a push rod, a force sensor, an ignition tool and a test piece. The invention can adjust the compression degree of the force sensor through four pull rods, so that the released object can be in reliable contact with the back seat, and can accurately measure the recoil force released by the object; Four force sensors are used to measure the recoil force. After the test, the four recoil forces are synthesized into one recoil force test method through data processing method, which is improved to only use one force sensor to measure the recoil force, avoiding the phase difference between the collector channels, and then As a result, there is a large error in the calculated resultant force.

Description of drawings

Fig. 1 is a structural representation of an object release recoil measuring device of the present invention;

Fig. 2 is a front sectional view of a push rod of an object release recoil measuring device of the present invention;

Fig. 3 is a left view of the ejector rod of an object release recoil measuring device of the present invention.

Among them: 1. Base, 2. Rear seat, 3. Front support, 4. Band, 5. Tower mounting bracket, 6. Pull rod, 7. Ejector, 8. Force sensor, 9. Ignition tooling, 10. Test pieces.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1, a device for measuring recoil when an object is released includes a base 1, a rear seat 2, a front support 3, a strap 4, a tower mounting bracket 5, a pull rod 6, a push rod 7, a force sensor 8, and a firing tool 9 and test piece 10. The lower end of the base 1 is fixed on the ground. Rear seat 2 is fixed on the left part of base 1 front end face. Tower mounting bracket 5 is fixed on the right end of rear seat 2. Front support 3 is fixed on the right part of base 1 front end face. The strap 4 is installed on the front end face of the front support 3 . The firing frock 9 is fixed on the base 1 by a strap 4 . The right end of push rod 7 is fixedly connected with the left end of firing frock 9, and force sensor 8 is set on the left end. The right end of the force sensor 8 is in close contact with the push rod 7 , and the left end is in close contact with the tower mounting bracket 5 . The right end of pull rod 6 passes push rod 7 and is fixedly connected with the left end of firing frock 9, and the left end is threaded with tower mounting bracket 5.

As shown in Figures 2 and 3, the main body of the push rod 7 is in the shape of a cylinder, and an "H"-shaped mounting plate is provided at the right end of the main body. The left end of the main body of the push rod 7 is provided with a cylindrical boss for fixing the force sensor 8 . The four corners of the mounting plate of the push rod 7 are provided with pull rod holes for passing the pull rod 6 .

The force sensor 8 is a piezoelectric force sensor, which is ring-shaped as a whole.

The pull rods 6 are cylindrical as a whole, and there are four in total, and a fixed nut is installed on the left end. The relative distance between the tower mounting bracket 5 and the firing tool 9 is adjusted by turning the fixing nut, thereby adjusting the compression degree of the force sensor 8 .

The ignition tool 9 is in the shape of a cylinder with an opening to the right as a whole, and an pyrotechnic device is arranged at the bottom of the cylinder for releasing the test piece 10 .

In this embodiment, the base 1, the rear seat 2, the front support 3, the band 4, the tower mounting bracket 5, the tie rod 6, the ejector rod 7 and the firing tool 9 are all made of stainless steel.

Before the test starts, the test piece 10 is nested inside the ignition tool 9, and the force sensor 8 is connected to the data acquisition system. The data acquisition system selects the 501 general data acquisition system produced by Dewetron Company in Austria. After the test started, the pyrotechnic device in the explosive device 9 was detonated to make the test piece 10 move to the right, and the test piece 10 produced a leftward recoil force simultaneously. The recoil force is transmitted to the force sensor 8 through the ejector rod 7, and the recoil force value is accurately measured through the data acquisition system.

The present invention comprises a base 1 , a rear seat 2 , a front support 3 , a band 4 , a tower mounting bracket 5 , a pull rod 6 , a push rod 7 , a force sensor 8 , an ignition tool 9 and a test piece 10 . The invention can adjust the compression degree of the force sensor through four pull rods, so that the released object can be in reliable contact with the back seat, and can accurately measure the recoil force released by the object; Four force sensors are used to measure the recoil force. After the test, the four recoil forces are synthesized into one recoil force test method through data processing method, which is improved to only use one force sensor to measure the recoil force, avoiding the phase difference between the collector channels, and then As a result, there is a large error in the calculated resultant force.

Claims (6)

1. object release recoil measurement apparatus, it is characterised in that: it include pedestal (1), back seat (2), Front support (3), band (4), control tower mounting bracket (5), pull bar (6), push rod (7), force snesor (8), ignition frock (9) and testpieces (10)；The lower end of pedestal (1) fixes on the ground；Back seat (2) It is fixed on the left part of pedestal (1) front end face；Control tower mounting bracket (5) is fixed on the right-hand member of back seat (2)； Front support (3) is fixed on the right part of pedestal (1) front end face；Band (4) is arranged on front support (3) On front end face；Frock (9) of getting angry is fixed on pedestal (1) by band (4)；The right side of push rod (7) End is fixing with the left end of ignition frock (9) to be connected, and left end is set with force snesor (8)；Force snesor (8) Right-hand member and push rod (7) be in close contact, left end is in close contact with control tower mounting bracket (5)；Pull bar (6) Right-hand member pass through push rod (7) and with get angry that the left end of frock (9) is fixing to be connected, left end is installed with control tower and is propped up Frame (5) is threaded.

2. object according to claim 1 release recoil measurement apparatus, it is characterised in that: described top Bar (7) main part is cylindrical, and the right-hand member in main part is provided with " H " shape installing plate；Push rod (7) left end of main part is provided with cylindrical boss；It is provided with in the corner of push rod (7) installing plate and draw Rod aperture.

3. object according to claim 1 release recoil measurement apparatus, it is characterised in that: described power Sensor (8) uses piezoelectric force transducer, generally annular.

4. object according to claim 1 release recoil measurement apparatus, it is characterised in that: described draws Bar (6) generally cylindrical, has four, and left end is provided with fixing nut.

5. object according to claim 1 release recoil measurement apparatus, it is characterised in that: described sends out Firer fills (9) generally opening cylindrical shape to the right, and position at the bottom of the cylinder in cylinder is provided with priming system.

6. object according to claim 1 release recoil measurement apparatus, it is characterised in that: described base Seat (1), back seat (2), front support (3), band (4), control tower mounting bracket (5), pull bar (6), Push rod (7) and frock (9) of getting angry all use stainless steel material to make.