CN212482779U - Strong damping shock-proof pressure gauge - Google Patents
Strong damping shock-proof pressure gauge Download PDFInfo
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- CN212482779U CN212482779U CN202021495986.1U CN202021495986U CN212482779U CN 212482779 U CN212482779 U CN 212482779U CN 202021495986 U CN202021495986 U CN 202021495986U CN 212482779 U CN212482779 U CN 212482779U
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- damping
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- shock
- pressure gauge
- damper
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Abstract
The utility model discloses a strong damping shock-proof pressure gauge, including the damping joint, install the gauge outfit on the damping joint, the through-hole inner chamber of damping joint is provided with first attenuator, install the second attenuator on the gear drive in the gauge outfit, through set up the attenuator respectively in the joint of manometer and watchcase, first department damping is the adoption micropore carries out the damping effect in the joint hole, and the second department damping is installed the attenuator on gear drive, also plays the damping effect when its pointer swings; can play the key role to the shock resistance performance of manometer to through dual damping structure, make the instrument in the vibrations environment of high strength, the damping effect is better, and slow down the injury of vibrations to the inside core of instrument etc. improves the life of instrument.
Description
Technical Field
The utility model relates to an automatic change the instrument and make the field, especially relate to a strong damping shock-proof pressure gauge.
Background
In environments with relatively high vibration media, such as slurry pumps in the petroleum industry, long-time vibration in cleaning equipment puts higher requirements on the vibration resistance of the pressure instrument. The shock resistance of the conventional shock-resistant pressure gauge is mainly realized by injecting damping (medium such as silicone oil, glycerol and the like) into the shell so as to reduce the damage of shock to a movement and the like in the gauge. However, the mode of injecting damping into the inside of the watch case does not play any role of shock resistance in a high-strength shock environment, so that a shock-resistant pressure gauge with a strong damping structure needs to be designed to meet the requirements of the field
SUMMERY OF THE UTILITY MODEL
To above-mentioned defect or not enough, the utility model aims to provide a strong damping shock-proof pressure gauge.
In order to achieve the above purpose, the technical scheme of the utility model is that:
the utility model provides a strong damping shock-proof pressure gauge, includes the damping joint, install the gauge outfit on the damping joint, the through-hole inner chamber that the damping connects is provided with first attenuator, install the second attenuator on the gear drive in the gauge outfit.
The first damper is in interference fit with the inner cavity of the through hole of the damping joint, and the first damper is riveted into the inner cavity of the through hole through a rivet gun.
And damping is injected into the through hole inner cavity of the damping joint.
The damping silicone oil or the glycerol.
Damping oil is arranged between the second damper and the gear transmission mechanism.
The second damper is placed on a plane above the gear transmission mechanism, and the second damper and the gear transmission mechanism play a damping role through damping oil friction.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a strong damping shock-proof pressure gauge, through setting up the attenuator in the joint and watchcase of the pressure gauge respectively, the first position damping is to adopt the micropore to carry on the damping effect in the joint hole, the second position damping is to install the attenuator on the gear drive mechanism, also play the damping effect when its pointer swings; can play the key role to the shock resistance performance of manometer to through dual damping structure, make the instrument in the vibrations environment of high strength, the damping effect is better, and slow down the injury of vibrations to the inside core of instrument etc. improves the life of instrument.
In addition, inside conventional shock-resistant manometer screwed the attenuator into the joint cavity through helicitic texture, and the utility model discloses strong damping shock-resistant manometer mainly rivets the attenuator into the aircraft nose cavity through the interference fit between joint and the attenuator, and the pressure source passes through the reducing of attenuator and reduces the pressure source velocity of flow to improve its shock resistance ability.
Drawings
FIG. 1 is a schematic structural view of the strong damping shock-proof pressure gauge of the present invention;
FIG. 2 is a sectional view of the strong damping shock-proof pressure gauge of the present invention;
FIG. 3 is a schematic structural view of the high damping shock-proof pressure gauge head of the present invention;
FIG. 4 is a schematic structural view of a second damper of the strong damping shock-proof pressure gauge of the present invention;
figure 5 is the utility model discloses strong damping shock-proof pressure gauge second attenuator cross-sectional view.
In the figure, 1 — damping joint; 2-a first damper; 3-a gear transmission mechanism; 4-damping oil; 5, a gauge head; 6-second damper.
Detailed Description
The present invention will be described in detail with reference to the drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 and 2, the utility model provides a strong damping shock-proof pressure gauge, connect 1 including the damping, install gauge outfit 5 on the damping connects 1, the through-hole inner chamber that damping connects 1 is provided with first attenuator 2, install second attenuator 6 on the gear drive mechanism 3 in the gauge outfit 5.
Wherein, first attenuator 2 and damping connect 1's through-hole inner chamber interference fit, and first attenuator 2 rivets into through-hole inner chamber through the riveter. And the surface cavity of the damping joint 1 is injected with damping, and the damping silicone oil or glycerin is injected into the surface cavity. The first damper 2 plays a role in damping through the flow restriction of the micro holes.
The design principle is as follows:
the pressure medium is a non-viscous fluid (pressure medium under ideal state)
The inviscid fluid (pressure medium under ideal conditions) was estimated using the Bernoulli equation:
the Bernoulli equation is shown as the formula (1-1).
Because in the pressure gauge joint, h is 0 and is the same pressure medium. Without considering the viscosity and resistance, there are:
in the formula (1-2), v1 and v2 are flow rates before and after entering the strong damping structure, and R1 and R2 are the inner diameter of the pressure gauge joint and the inner diameter of the strong damping structure.
The actual data were carried into the following table:
| pore diameter | Mounting dampers | Without damper |
| 3.0mm | v1＝15v2 | v1＝5v2 |
| 3.5mm | v1＝7v2 | v1＝4.38v2 |
The pressure medium being a uniform flow of viscous fluid
The viscous fluid uniform flow is calculated by the equation of the capacity:
the formulas (1-3) are just the metabolic activity formulas.
Because the coefficient of metabolic capacity C and the hydraulic gradient J are kept unchanged in the same pressure gauge joint, the following steps are provided:
in the formula (1-4), v1 and v2 are flow rates before and after entering the strong damping structure, and R1 and R2 are the inner diameter of the pressure gauge joint and the inner diameter of the strong damping structure.
The actual data are shown in the following table
| Pore diameter | Mounting dampers | Without damper |
| 3.0mm | v1＝3.87v2 | v1＝2.24v2 |
| 3.5mm | v1＝2.65v2 | v1＝2.09v2 |
The calculation of the strong damping structure principle shows that the flow velocity of the pressure medium can be reduced by 0.5-1.5 times after the medium passes through the strong damping structure, and the swing amplitude of the pointer of the pressure gauge can be reduced by the reduction of the flow velocity.
The utility model discloses strong damping shock-proof pressure gauge's structure mainly contains damping joint 1 and gauge outfit 5. Wherein damping joint 1 is key spare part, plays the key effect to the shock resistance performance of shock-resistant manometer. The difference of strong damping shock-proof pressure gauge and conventional shock-proof pressure gauge lies mainly in the installation of the first damper 2 of joint, and inside conventional shock-proof pressure gauge screwed the damper into the joint cavity through the helicitic texture, and in the novel strong damping head cavity. The pressure source reduces the flow velocity of the pressure source through the reducing of the damper, so that the shock resistance of the pressure source is improved. The first damper 2 is riveted into the machine by the shock-proof pressure gauge mainly through interference fit between the joint and the damper
As shown in fig. 3 to 5, damping oil 4 is provided between the second damper 6 and the gear transmission mechanism 3. The second damper 6 is placed on the plane above the gear transmission mechanism 3, and the second damper 6 and the gear transmission mechanism 3 play a damping role through damping oil friction.
The utility model discloses a working process and principle do:
for the first damper 2, the strong damping shock-proof pressure gauge mainly measures the pressure of high pulsation medium, and has better shock resistance and reliable safety. Firstly, attenuating high pulse once through a micro hole according to the working principle; then based on the spring tube under the pressure of the measured medium, it produces elastic deformation to cause the displacement of the tube end, the displacement is transmitted and amplified (core and connecting rod) by the gear transmission mechanism, and transmitted to the indicating device, and the pointer deflects on the dial to indicate the pressure value.
For the second damper 6, when pressure enters from the damping joint 1, the gear transmission mechanism 2 is driven to rotate, the gear transmission mechanism 2 is tightly matched with the damper 3 and drives the damper 3 to rotate, damping oil is filled between the damper 3 and the gear transmission mechanism 2, and the damper plays a friction role when the gear transmission mechanism 2 rotates, so that a damping effect is achieved.
It should be apparent to those skilled in the art that the above embodiments are only preferred embodiments of the present invention, and therefore, the modifications and changes that can be made by those skilled in the art to some parts of the present invention still embody the principles of the present invention, and the objects of the present invention are achieved, all falling within the scope of the present invention.
Claims (6)
1. The utility model provides a strong damping shock-proof pressure gauge, its characterized in that, includes damping joint (1), install gauge outfit (5) on damping joint (1), the through-hole inner chamber that damping joint (1) was provided with first attenuator (2), install second attenuator (6) on gear drive (3) in gauge outfit (5).
2. The strong damping shock-resistant pressure gauge according to claim 1, wherein the first damper (2) is in interference fit with the through hole inner cavity of the damping joint (1), and the first damper (2) is riveted into the through hole inner cavity by a rivet gun.
3. The shock-proof pressure gauge with strong damping according to claim 1 or 2, characterized in that the through hole cavity of the damping joint (1) is injected with damping.
4. The highly damped, shock resistant pressure gauge of claim 3, wherein said damping is silicone oil or glycerin.
5. The strongly damped shock-proof pressure gauge according to claim 1, characterized in that a damping oil (4) is arranged between the second damper (6) and the gear transmission mechanism (3).
6. The shock-proof pressure gauge with strong damping according to claim 1, wherein the second damper (6) is placed on the plane above the gear transmission mechanism (3), and the second damper (6) and the gear transmission mechanism (3) perform a damping function through damping oil friction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021495986.1U CN212482779U (en) | 2020-07-24 | 2020-07-24 | Strong damping shock-proof pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021495986.1U CN212482779U (en) | 2020-07-24 | 2020-07-24 | Strong damping shock-proof pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212482779U true CN212482779U (en) | 2021-02-05 |
Family
ID=74452662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021495986.1U Active CN212482779U (en) | 2020-07-24 | 2020-07-24 | Strong damping shock-proof pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212482779U (en) |
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2020
- 2020-07-24 CN CN202021495986.1U patent/CN212482779U/en active Active
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