CN205049749U

CN205049749U - Perpendicular geophone

Info

Publication number: CN205049749U
Application number: CN201520801313.7U
Authority: CN
Inventors: 魏长青; 张二占; 陈旋沛
Original assignee: Yong Chengtian Peak Baoding Physical Prospecting Device Fabrication Co Ltd
Current assignee: Yong Chengtian Peak Baoding Physical Prospecting Device Fabrication Co Ltd
Priority date: 2015-10-18
Filing date: 2015-10-18
Publication date: 2016-02-24
Anticipated expiration: 2025-10-18

Abstract

The utility model discloses a perpendicular geophone, suspension body weight is 22.7 0.03 and restrains, including coil former, upper and lower coil and counter weight coil, upper and lower spring leaf adopts thickness to be 0.085 0.002mm's three seams, six muscle spring leafs, two single bushing terminals are fixed and are covered last, lower extreme welding conductive lead wire spring, and conductive lead wire spring lower extreme welds on the terminal, and the terminal other end welds with the leading -out terminal of upper and lower coil, the coil former is as an organic whole, and its lower extreme crimping is in spring leaf outer fringe down, and the crimping of lower magnetism boots lower extreme is on spring leaf inner edge down, and the recess crimping of coil former upper end is in last spring leaf outer fringe, and the crimping is on last spring leaf inner edge on the last magnetism boots, high 8.2 0.025mm and 4.2 0.025mm of being respectively of boss and lower cover boss under the upper cover. The utility model discloses the frequency is low, output sensitivity is high, the distortion is little, with low costs, long service life, and magnetic field is more even.

Description

A kind of vertical geophone

Technical field

The utility model relates to a kind of seismoreceiver, particularly relates to a kind of single-point vertical geophone.

Background technology

Seismoreceiver is the sensor special for geologic prospecting and engineering survey, it is a kind of sensor ground vibration being changed into electric signal, it utilizes artificial earthquake to produce vibration signal in the earth formation, vibration signal is received in the local placement sensor that distance shot point is different according to designing requirement, then the vibration signal received is processed, explained, according to the attribute on information analysis different depth stratum, the form etc. of structure such as frequency, amplitude, speed of signal, thus tentatively judge whether that there is oil generation, oil storage condition, the well location of probing is finally provided.

Seismic prospecting in the past 95% concentrates on middle-shallow layer, and the degree of prospecting of deep layer is very low, and buried depth is shallow, abundance is high, sweeping oil reservoir finds all, and along with going deep into of exploration, the proportion of deep layer exploration will increase gradually, and finally turn to deep layer exploration.Deep layer exploration is had higher requirement to seismoreceiver, require that the free-running frequency of seismoreceiver is low, distortion is little, output sensitivity wants high, free-running frequency in the past for the seismoreceiver of middle-shallow layer exploration is 10Hz, sensitivity is 20v/m/s, degree of distortion is less than 0.2%, in order to adapt to the requirement of deep layer exploration, develop the seismoreceiver that a kind of frequency is low, output sensitivity is high and distortion is little to be very important, the key technical indexes require: free-running frequency not higher than 5HZ, sensitivity is not less than 80v/m/s, degree of distortion is not more than 0.1%.

Utility model content

The purpose of this utility model solves the above-mentioned problems in the prior art exactly, the vertical geophone that a kind of frequency is low, output sensitivity is high, distortion is little is provided, this detector structure is simple, cost is low, dependability is high, long service life, narrow winding, wide magnetic field, magnetic field evenly, export more stable.

For achieving the above object, technical solution of the present utility model is: a kind of vertical geophone, comprise shell, crimping is fixed on upper cover and the lower cover of the upper and lower end of shell, suspension body is in the enclosure set, be arranged on the magnet steel in suspension body and upper and lower magnetic boots, upper spring leaf, lower spring sheet and insulcrete; It is characterized in that: it also comprises compensated loop, two single bushing binding posts, conductive lead wire spring and binding posts; Upper and lower coil in the wide wire casing of upper and lower narrow wire casing and centre that suspension body comprises coil former, be wrapped in outside coil former and counterweight coil; Upper and lower coil rewinds each other and connects together, and suspension body weight is 22.7 ± 0.03 grams; Upper and lower spring leaf adopts three seam six muscle spring leafs, and thickness is 0.085 ± 0.002mm, and the deformation direction of main muscle is counterclockwise; Two single bushing binding posts are fixed on and cover, fill insulant between itself and upper cover, its lower end welding conductive lead wire spring, conductive lead wire spring lower end is welded on the binding post that edge insulator is connected in coil former wiring post holes, and the leading-out terminal of the binding post other end and upper and lower coil is welded to connect; Coil former is integrated part, its lower end is crimped in lower spring sheet outer rim, lower magnetic boots lower end is crimped on the lower spring sheet inner edge that is enclosed within lower cover boss, and coil former upper end groove is crimped in spring leaf outer rim, and upper magnetic boots upper end is crimped on the upper spring leaf inner edge that is enclosed within upper cover lower convex platform; In the space of conductive lead wire spring between coil former and upper cover; The upper end of upper magnetic boots is higher than the upper end of upper coil, and the lower end of lower magnetic boots is lower than the lower end of lower coil; Upper cover lower convex platform height is 8.2 ± 0.025mm, and lower cover boss height is 4.2 ± 0.025mm.

Upper and lower narrow wire casing outside the utility model coil holder is used for the upper and lower coil of coiling, for coiling counterweight coil in middle wide wire casing, to meet the heavier-weight of suspension body, is the requirement of 22.7 ± 0.03 grams; Upper and lower spring leaf adopts thickness to be the three seam six muscle spring leafs of 0.085mm, thinner thickness, and the thickness that can meet upper and lower spring leaf is large with the part by weight of pendant body, and the requirement that guarantee frequency is low, can reach the requirement being not more than 5HZ; The upper end of upper magnetic boots higher than the upper end of upper coil, the lower end of lower magnetic boots lower than the lower end of lower coil, its narrow winding, wide magnetic field, magnetic field evenly, export more stable; The boss of upper cover lower convex platform and lower cover convex platform aspect ratio prior art increases 2.6mm and 1mm respectively, make the displacement peak value of coil become 3mm by 1.5mm, the change of displacement peak value is large, makes output signal become large, sensitivity uprises, and sensitivity increases to more than 80v/m/s by 20v/m/s; Coil former is integrated part, no longer scatters, extend its serviceable life in vibrating frequently; Adopt the direct conduction form that upper and lower coil leading-out terminal, binding post, conductive lead wire spring and single bushing binding post weld together, its conduction reliability is high, can not occur to cause because of loose contact logical time to break phenomenon, avoid the problem of the electric signal distortion that sliding contact causes, stable output signal is reliable; The increase of compensated loop, makes the change of temperature bring output signal degree of distortion little; Especially the utility model saves interior contact chip and lower gasket, the narrowed width of upper and lower coil, and its structure is simple, and easily, cost reduces further in assembling.

In a word, the utility model frequency is low, can reach the requirement being not more than 5HZ; Output sensitivity is high, can reach and be not less than 80v/m/s; Degree of distortion, is not more than 0.1%.The utility model structure is simple, and cost is low, and dependability is high, long service life, and signal exports more stable, narrow winding, wide magnetic field, magnetic field evenly, export more stable, anti-drop number of times more than 8000 times.

Accompanying drawing explanation

Fig. 1 is inner structure schematic diagram of the present utility model.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is further described.

As shown in Figure 1, the present embodiment comprises shell 8, crimping is fixed on upper cover 1 and the lower cover 10 of the upper and lower end of shell 8, be arranged on the suspension body in shell 8, be arranged on the magnet steel 5 in suspension body and upper and lower magnetic boots 4 and 18, upper spring leaf 12, lower spring sheet 13, insulcrete 9, compensated loop 14, two single bushing binding posts 2, conductive lead wire spring 11 and binding posts 3.Upper and lower coil 7,17 in the wide wire casing of upper and lower narrow wire casing and centre that suspension body comprises coil former 6, be wrapped in outside coil former 6 and counterweight coil 15.Upper and lower coil 7,17 rewinds each other and connects together, and suspension body weight is 22.7 ± 0.03 grams (that is any number between 22.4 grams to 23 grams).The deformation direction of the main muscle of upper and lower spring leaf 12 and 13 is counterclockwise, and it adopts distortion little, and thickness is any number between 0.085 ± 0.002mm(that is 0.083mm to 0.087mm) three seam six muscle springs.Coil former 6 can adopt aluminium matter oxide isolated coil former, and the width of its outer upper and lower wire casing can be any number between 7 ± 0.015mm(that is 6.985mm to 7.015mm), the requirement that can meet coil turn can reach again the object of narrow winding.Magnet steel 5 can adopt column Nd-Fe-B magnet steel, and upper and lower magnetic boots 4 and 18 dimensional thickness can be any number between 10.35 ± 0.025mm(that is 10.325mm to 10.375mm) and obtain looser magnetic field.Two single bushing binding posts 2 are fixed on upper cover 1, fill insulant 19 between itself and upper cover 1, its lower end welding conductive lead wire spring 11, conductive lead wire spring 11 lower end is welded on the binding post 3 that edge insulator is connected in coil former 6 wiring post holes, and the leading-out terminal of binding post 3 other end and upper and lower coil 7 and 17 is welded to connect.Coil former 6 is integrated part, and its lower end is crimped in lower spring sheet 13 outer rim, and lower magnetic boots 18 lower end is crimped on lower spring sheet 13 inner edge that is enclosed within lower cover 10 boss.Coil former 6 upper end groove is crimped in spring leaf 12 outer rim, and upper magnetic boots 4 upper end is crimped on upper spring leaf 12 inner edge that is enclosed within upper cover 1 lower convex platform 20.In the space 21 of conductive lead wire spring 11 between coil former 6 and upper cover 1.The upper end of upper magnetic boots 4 is higher than the upper end of upper coil 7, and the lower end of lower magnetic boots 18 is lower than the lower end of lower coil 17.The lower end of upper magnetic boots 4, the upper end of lower magnetic boots 18 have the buckling groove A and buckling groove B that match with magnet steel 5 outer wall respectively; In the buckling groove A that magnet steel 5 is connected to upper and lower magnetic boots 4 and 18 and buckling groove B, compensated loop 14 is connected between the lower surface of buckling groove A and buckling groove B upper surface, is enclosed within magnet steel 5 outer and contact with magnet steel 5 cylindrical.Upper cover lower convex platform 20 is highly any number between 8.2 ± 0.025mm(that is 8.175mm to 8.225mm), lower cover boss 22 height 4.2 ± 0.025mm(that is 4.175mm to 4.225mm between any number), increasing of upper cover lower convex platform 20 and lower cover boss, make the displacement peak value of coil become 3.5mm by 1.5mm, the signal of output increases.The central axes of upper cover lower convex platform 20, lower cover boss 22, upper and lower magnetic boots 4 and 18, magnet steel 5, upper and lower spring leaf 12 and 13.16 O-ring seals being upper cover 1 and crimping between lower cover 10 with shell 8.

Above-described embodiment is only preferred and exemplary, and those skilled in the art can carry out the improvement of equivalent technologies according to the description of this patent, it is all in the protection domain of this patent.

Claims

1. a vertical geophone, comprises shell, and crimping is fixed on upper cover and the lower cover of the upper and lower end of shell, arranges suspension body in the enclosure, is arranged on the magnet steel in suspension body and upper and lower magnetic boots, upper spring leaf, lower spring sheet and insulcrete; It is characterized in that: it also comprises compensated loop, two single bushing binding posts, conductive lead wire spring and binding posts; Upper and lower coil in the wide wire casing of upper and lower narrow wire casing and centre that suspension body comprises coil former, be wrapped in outside coil former and counterweight coil; Upper and lower coil rewinds each other and connects together, and suspension body weight is 22.7 ± 0.03 grams; Upper and lower spring leaf adopts three seam six muscle spring leafs, and thickness is 0.085 ± 0.002mm, and the deformation direction of main muscle is counterclockwise; Two single bushing binding posts are fixed on and cover, fill insulant between itself and upper cover, its lower end welding conductive lead wire spring, conductive lead wire spring lower end is welded on the binding post that edge insulator is connected in coil former wiring post holes, and the leading-out terminal of the binding post other end and upper and lower coil is welded to connect; Coil former is integrated part, its lower end is crimped in lower spring sheet outer rim, lower magnetic boots lower end is crimped on the lower spring sheet inner edge that is enclosed within lower cover boss, and coil former upper end groove is crimped in spring leaf outer rim, and upper magnetic boots upper end is crimped on the upper spring leaf inner edge that is enclosed within upper cover lower convex platform; In the space of conductive lead wire spring between coil former and upper cover; The upper end of upper magnetic boots is higher than the upper end of upper coil, and the lower end of lower magnetic boots is lower than the lower end of lower coil; Upper cover lower convex platform height is 8.2 ± 0.025mm, and lower cover boss height is 4.2 ± 0.025mm.

2. vertical geophone according to claim 1, is characterized in that: described coil former adopts aluminium matter oxide isolated coil former, and the width of its outer upper and lower wire casing can be 7 ± 0.015mm; Magnet steel 5 adopts column Nd-Fe-B magnet steel, and upper and lower magnetic boots 4 and 18 dimensional thickness is 10.35 ± 0.025mm.