CN208140954U - A kind of sonic probe crystal fixation assembly with shockproof function - Google Patents

Abstract

The utility model relates to field geophysics well logging fields, more particularly to a kind of sonic probe crystal fixation assembly with shockproof function, the utility model includes the shell of outside, there are left end cap and right end cap sealing in shell both ends, entire shell and the external world are sealing states, inside fills insulation silicone oil, ensure that crystal and extraneous sealing, and maintain internal and external pressure balance；Shell, left end cap, right end cap material be stainless steel, it is therefore prevented that assembly is corroded by the high hydrogen sulfide in mine, and the present apparatus, which has also installed the left shock-absorbing sleeve being close to crystal and right shock-absorbing sleeve additional, makes crystal have shockproof function.

Description

A crystal fixing assembly of an acoustic wave probe with shockproof function

technical field

The utility model relates to the field of geophysical well logging in mines, in particular to an acoustic wave probe crystal fixing assembly with an anti-shock function.

Background technique

An ultrasonic probe is a device that emits and receives ultrasonic waves during ultrasonic testing. The performance of the probe directly affects the characteristics of the ultrasonic wave and affects the detection performance of the ultrasonic wave. The probe used in ultrasonic testing is a transducer that uses the piezoelectric effect of materials to convert electrical energy and acoustic energy. The key component in the probe is the crystal, which is a single crystal or polycrystalline sheet with piezoelectric effect, and its function is to convert electric energy and acoustic energy into each other.

The crystal of a traditional acoustic wave instrument is generally fixed on the instrument frame at a fixed point, put into a rubber bladder, and filled with silicone oil. The sonic instrument is lowered into the well, and the crystal is not equipped with anti-shock equipment, which is easy to cause damage.

Utility model content

Aiming at the deficiencies of the prior art, the utility model discloses a crystal fixing assembly of an acoustic wave probe with an anti-vibration function, which has an anti-vibration function without affecting the transmission of acoustic logging signals.

The specific technical scheme is as follows:

A sound wave probe crystal fixing assembly with anti-shock function, including a shell, a left end cover, a right end cover, a first sealing ring, a fixed shaft, a left shock absorbing sleeve, a crystal, a second sealing ring, and a right shock absorbing sleeve; The structure of the left end cover is exactly the same as that of the right end cover. The left end cover is a cover with external threads and screw holes inside. The screw holes of the left end cover are processed with internal threads. The left and right ends of the shell correspond to the left end. The external threads of the cover and the right end cover are processed with internal threads, the left end of the housing is screwed to the left end cover, and the right end of the housing is screwed to the right end cover; the external threads of the left end cover and the external threads of the right end cover correspond to the housing The first sealing ring is installed; the housing is provided with a fixed shaft, a left shock absorber, a crystal, a second seal ring, a right shock absorber, and silicone oil; the left and right ends of the fixed shaft are processed with external threads, and the fixed shaft The left end is screwed with the screw hole of the left end cover, and the right end of the fixed shaft is screwed with the screw hole of the right end cover. The external thread of the fixed shaft is equipped with a second sealing ring corresponding to the left end cover and the right end cover; To the right, there are left shock absorber, crystal, and right shock absorber; the structure of the left shock absorber and the right shock absorber is exactly the same, and they are symmetrically installed on the left and right sides of the crystal; the left shock absorber is evenly processed with a plurality of grooves, the housing is filled with silicone oil;

Preferably, the silicone oil is insulating silicone oil;

Preferably, the housing, the left end cover, the right end cover, and the fixed shaft are made of stainless steel;

Preferably, the material of the left shock absorber and the right shock absorber is rubber;

Preferably, the crystal is a piezoelectric ceramic crystal.

Beneficial effect:

The utility model includes an outer shell, the two ends of the shell are sealed with left and right end covers, the whole shell is in a sealed state with the outside world, and the inside is filled with insulating silicone oil, which ensures the seal between the crystal and the outside world, and maintains the balance of internal and external pressure; The shell, the left end cover and the right end cover are all made of stainless steel, which prevents the assembly from being corroded by the high hydrogen sulfide in the mine. It has the function of shockproof.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Figure 1: Assembly diagram of the left end cover, left shock absorber, right shock absorber, fixed shaft, crystal, and second sealing ring of the utility model;

Figure 2: Assembly diagram of the housing, right end cover and first sealing ring of the utility model;

Figure 3: Sectional view of the left end cover of the utility model.

Reference signs are as follows: 1, left end cover, 101, screw hole, 2, housing, 3, right end cover, 4, first sealing ring, 5, left shock absorbing sleeve, 6, fixed shaft, 7, second sealing ring , 8, crystal, 9, right shock-absorbing cover.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Refer to Figure 1: A sound wave probe crystal fixing assembly with anti-vibration function, including housing 2, left end cover 1, right end cover 3, first sealing ring 4, fixed shaft 6, left shock absorbing sleeve 5, crystal 8, the first Two sealing rings 7, right shock absorbing sleeve 9; the structure of the left end cover 1 is exactly the same as the structure of the right end cover 3, the left end cover is provided with external thread outside, and the cover body with screw hole 101 is provided inside, the screw of the left end cover The hole 101 is processed with internal threads, and the left and right ends of the housing 2 are processed with internal threads corresponding to the external threads of the left end cover 1 and the right end cover 3. The left end of the housing 2 is screwed to the left end cover 1, and the right end of the housing 2 is connected to the right end cover. 3 screw connection; the external thread of the left end cover 1 and the external thread of the right end cover 3 are equipped with a first sealing ring 4 corresponding to the housing 2; the housing is provided with a fixed shaft 6, a left shock absorber 5. Crystal 8, second sealing ring 7, right shock absorber 9; the left and right ends of the fixed shaft 6 are processed with external threads, the left end of the fixed shaft 6 is screwed to the screw hole 101 in the left end cover 1, and the right end of the fixed shaft 6 Screwed with the screw hole 101 in the right end cover 3, the external thread of the fixed shaft 6 is equipped with a second sealing ring 7 corresponding to the left end cover 1 and the right end cover 3; Left shock absorber 5, crystal 8, right shock absorber 9; said left shock absorber 5 has the same structure as right shock absorber 9, and is symmetrically installed on the left and right sides of crystal 8; said left shock absorber is evenly processed There are multiple grooves for increasing the anti-seismic performance, and the housing is filled with silicone oil, which ensures that the crystal 8 is sealed from the outside world and maintains the balance of internal and external pressures.

The silicone oil is insulating silicone oil; the housing 2, the left end cover 1, the right end cover 3, and the fixed shaft 6 are all made of stainless steel, which prevents the corrosion of the device by hydrogen sulfide in the well; the left shock absorber 5 and the right The shock absorbing sleeve 9 is made of rubber; the crystal 8 is a piezoelectric ceramic crystal.

Specifically, the left and right shock absorbing sleeves are provided at the left and right ends of the crystal 8 of this device, and a housing is provided outside the crystal, and the housing is filled with insulating silicone oil, so that the crystal is sealed from the outside world, and the internal and external pressure balance is maintained. The shock-absorbing sleeve and the right shock-absorbing sleeve have the function of buffering, so that the acoustic wave probe has the function of shock-proof, and the left and right shock-absorbing sleeves are processed with grooves to enhance the shock-resistant performance; the shell, the left end cover, and the right end cover The materials are all stainless steel, which prevents the probe equipment from being corroded by the high hydrogen sulfide in the mine.

The above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be applied to the foregoing embodiments The technical solutions described in the examples are modified, or some of the technical features are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (5)

1. a kind of sonic probe crystal fixation assembly with shockproof function, it is characterised in that：Including shell, left end cap, right end Lid, the first sealing ring, fixing axle, left shock-absorbing sleeve, crystal, the second sealing ring, right shock-absorbing sleeve；The left end cap structure and right end cap Structure is identical, and left end cap is to be externally provided with external screw thread, the interior lid equipped with screw hole, and the screw hole of the left end cap is machined with interior spiral shell Line, the shell left and right ends correspond to left end cap and the external screw thread of right end cap is machined with internal screw thread, shell left end and left end cap It is spirally connected, shell right end is spirally connected with right end cap；It is equal to correspond to shell on the external screw thread of the left end cap and on the external screw thread of right end cap Add the first sealing ring；Fixing axle, left shock-absorbing sleeve, crystal, the second sealing ring, right shock-absorbing sleeve are provided in the shell；Institute It states fixing axle left and right ends and is machined with external screw thread, fixing axle left end is spirally connected with left end cap screw hole, fixing axle right end and right end cap Screw hole is spirally connected, and corresponds to left end cap on the fixing axle external screw thread and right end cap is mounted on the second sealing ring；The fixing axle On by being successively cased with left shock-absorbing sleeve, crystal, right shock-absorbing sleeve from left to right；The left shock-absorbing sleeve is identical with right damping nested structure, And it is symmetrically mounted on crystal the right and left；It is uniformly machined with multiple grooves on the left shock-absorbing sleeve, has filled silicon in the shell Oil.

2. a kind of sonic probe crystal fixation assembly with shockproof function according to claim 1, it is characterised in that：Institute Silicone oil is stated as insulation silicone oil.

3. a kind of sonic probe crystal fixation assembly with shockproof function according to claim 1, it is characterised in that：Institute Stating shell, left end cap, right end cap, fixing axle material is stainless steel.

4. a kind of sonic probe crystal fixation assembly with shockproof function according to claim 1, it is characterised in that：Institute The material for stating left shock-absorbing sleeve and right shock-absorbing sleeve is rubber.

5. a kind of sonic probe crystal fixation assembly with shockproof function according to claim 2, it is characterised in that：Institute Stating crystal is piezoceramics crystal.