SU1432356A1 - Pressure gauge - Google Patents

Abstract

The invention relates to self-recording manometers which allow pressure to be recorded as a function of movement during reciprocation of an object under investigation. The purpose of the invention is to provide the ability to record pressure in the forward, reverse, and reciprocating movements of an object. The pressure recording is performed by a plunger pressure sensor on the first drum 9 with a tape for recording, which is connected to the driving drum 7 by a ratchet mechanism consisting of two two teeth of U, which engage with the ratchet wheel I5. The Soleso 15 is fixed in the first drum 9, and the dogs are mounted on the drive drum 7 and mounted on axis 1 with the possibility of independent switching from one working position to another. A cable 15K 8 is wound on the drum 7, at one end secured in the drum 7, and the other end in a ring that attaches to the measurement object. When the cable 8 is pulled out over the ring, the drum 7 rotates, twisting the spiral spring.

Description

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18. The dogs 10 slip along the wheel 15, and the drum 9 and the coil charge remain stationary. The braking force of the drum 9 is created by the spring 16. When the cable 8 is reversed, the spring 18 rotates the drum 7, the dogs 10 engage the wheel 15 and driving the drum 9 by rotating the tape. This design allows the pressure to be recorded during reciprocating movement of the object under study, when it is necessary to record the pressure as a function of movement only when moving in one direction. When it is necessary to record when moving in the opposite direction, the pawl must be rotated around axis 11. To pull the tape (recording) during forward and reverse travel, the pawl 10 must be turned towards each other, thereby firmly connecting the reels 7 and 9 to each other. In this charge, the coil is not used. 4 Il.

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The invention relates to gauge instruments that allow pressure to be recorded as a function of movement during reciprocating movement of an element of a test object.

The purpose of the invention is to provide the ability to record pressure in the forward, reverse, and reciprocating movements of the object under study.

Figure 1 shows the pressure gauge, a general view; 2, the same top view; Fig. 3 shows a tape device; figure 4 - section aa in fig.Z.

The pressure gauge (Fig. 1) consists of a tape-testing device 1, a plunger pressure sensor 2, a housing 3 and a base 4.

The tape device (Fig. 3) includes a base 5 with an axis 6 fixed therein, a driving drum 7 for winding a cable 8 and a drum 9 with a tape for recording. The drums 7 and 9 are connected by a ratchet mechanism consisting of two-toothed pawls 10, axles 11, guides 12 with springs 13, trunnions 14, which are mounted on the drum 7, and a ratchet wheel 15 mounted in the drum 9. The ratchet wheel 15 is made with symmetrical teeth.

In addition, the spring 16 presses the drum 9 against the sleeve 17. Between the drum 7 and the axis 6 there is a coil spring 18.

The cable 8 at one end is fixed in the drum 7, and the other - in the ring 19

(Fig. 2), which is attached to the measurement object. The recording tape is wound on a charge coil 20.

The pressure gauge works as follows.

When the cable is pulled out over the ring 19, the drum 7 rotates, twisting the coil spring 18. The tank 10 (FIG. 3) thus slips over the gear wheel 15, and the drum 9 for winding the tape and charging coil 20 remain stationary. The necessary braking force of the drum 9 is created by the spring 16.

During the reverse movement of the cable, the coil spring I8 rotates the drum 7, the pawl 10 engages with the gear wheel 15 and thus causes the drum 9 to rotate, drawing the tape. Here, the braking forces from the spring 16 are overcome.

The proposed design of a tape device allows the recording of pressure not only during translational, but also during reciprocating movement of the object under investigation, when it is necessary to record pressure as a function of displacement during

movement in one direction only.

When it is necessary to record when moving in the opposite direction, the dog is turned around the axis 3i 11 and thus the second tooth of the dog is introduced into engagement with the gear wheel 15.

To push the tape (recording), during forward and reverse moves, the dogs turn towards each other, rigidly connecting the reels 7 and 9 to each other. In this case, the charge coil 20 (Fig. 2) is not used.

The application of the proposed manometer allows replacing two different types of devices, as well as simplifies and reduces the labor intensity of the service.

Formula inventions

A pressure gauge containing a plunger pressure sensor, the plunger of which is equipped with a recording pen, a tape-type housing device located on

 The axes of the first drum with a XVHH tape recording and a driving drum with a spiral spring connected to each other by a ratchet mechanism, characterized in that the ratchet mechanism is made in the form of two 1-tooth dogs that engage with a ratchet wheel with internal symmetrical teeth mounted in the first drum, while the dogs are mounted on the drive drum and mounted on axles with awn independent switching from one operating position to another.

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Claims (1)

Claim A manometer containing a plunger pressure sensor, the plunger of which is equipped with a writing pen, a tape drive with a first drum located on the same axis with a recording tape and a driving drum with a spiral spring, interconnected by a ratchet mechanism, characterized in that, in order to enable recording of pressure with direct, reverse and reciprocating movements of the test object, the ratchet mechanism in it is made in the form of two two-toothed dogs engaged with a ratchet wheel with an internal with symmetrical teeth fixed in the first drum, the dogs are mounted on the drive drum and mounted on the axes with the possibility of independent switching from one working position to another. Fi g. 2 1 43 2356 ftg. 4