CN204009092U - The vertical seismic wave detector that uniformity of magnetic field is high - Google Patents

Abstract

The utility model discloses the vertical seismic wave detector that a kind of uniformity of magnetic field is high, two single bushing binding posts are fixed on and cover, its lower end welding conductive lead wire spring, conductive lead wire spring lower end welding binding post, the leading-out terminal of binding post and upper and lower coil is welded to connect; Coil former lower end is crimped in lower spring sheet outer rim, lower magnetic boots lower end is crimped on lower spring sheet inner edge, the circular jump ring crimping of the outer cause C shape of upper spring sheet is fixed in the trapezoidal groove at step place, coil former upper end, and upper magnetic boots upper end is crimped on upper spring sheet inner edge; 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; Compensated loop is enclosed within outside magnet steel, and its height is higher than magnet steel, and insert in the groove of upper and lower magnetic boots the upper and lower end of compensated loop and magnet steel; The thickness of upper and lower magnetic boots is all thick than magnet steel.The utility model uniformity of magnetic field is good, and parameter consistency is good, franchise is little, degree of distortion is little, reliability is high, good stability, life-span are long.

Description

The vertical seismic wave detector that uniformity of magnetic field is high

Technical field

The utility model relates to a kind of seismoreceiver, relates in particular to a kind of vertical seismic wave detector.

Background technology

Seismoreceiver is the sensor special for geologic prospecting and engineering survey, it is a kind of sensor that ground vibration is changed into electric signal, it is to utilize artificial earthquake in stratum, to produce vibration signal, according to designing requirement, in the local placement sensor different apart from shot point, receive vibration signal, then the vibration signal receiving is processed, explained, according to the attribute on the information analysis different depth stratum such as the frequency of signal, amplitude, speed, the form of structure etc., be applied in the industries such as oil, coal, geology, engineering exploration.Existing 20D vertical seismic wave detector, on it, the thickness of lower magnetic boots is much smaller than magnet thickness, and on, lower coil upper, lower limb and upper, lower magnetic boots upper, consistent below, magnetic field is narrow, winding is wide, on, lower coil is upper, during lower motion, part coil is flogging a dead horse, cause the waste of coil, on also having, once lower spring sheet distortion, winding is just not exclusively in magnetic field, cause Magnetic field inhomogeneity, export unstable, its technical parameter franchise is ± 5%, degree of distortion is 0.2%, wave detector tolerance is large, distortion is large, poor stability, anti-drop number of times is below 3000 times, the exploration of high score pigtail rate requires the consistance of acceleration geophone parameter to become better and better, and existing 20D vertical seismic wave detector can not meet the demand of exploration market.

Utility model content

The purpose of this utility model solves the above-mentioned problems in the prior art exactly, the vertical seismic wave detector that a kind of uniformity of magnetic field is high is provided, this wave detector uniformity of magnetic field is good, and parameter consistency is good, franchise is little, degree of distortion is little, reliability is high, good stability, life-span are long.

For achieving the above object, technical solution of the present utility model is: the vertical seismic wave detector that a kind of uniformity of magnetic field is high, comprise shell, crimping is fixed on upper cover and the lower cover of the upper and lower end of shell, coil former is in the enclosure set, be wrapped in the upper and lower coil in the upper and lower wire casing outside coil former, be arranged on magnet steel and upper and lower magnetic boots in coil former, upper spring sheet, lower spring sheet, insulcrete and compensated loop; It is characterized in that: it also comprises two single bushing binding posts, conductive lead wire spring and binding posts; 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 edge insulator and is connected on the binding post in coil former binding post hole, 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 being enclosed within on lower cover boss, the trapezoidal groove circular jump ring crimping of C shape interior, that be supported in trapezoidal groove that the outer cause of upper spring sheet embeds step place, coil former upper end is fixed in the trapezoidal groove at step place, coil former upper end, and upper magnetic boots upper end is crimped on the upper spring sheet inner edge being enclosed within on 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; The deformation direction of the main muscle of upper and lower spring leaf is counterclockwise; Compensated loop is enclosed within outside magnet steel, and its height is higher than magnet steel, and insert in the groove of upper and lower magnetic boots the upper and lower end of compensated loop and magnet steel, and compensated loop can freely rotate; The thickness of upper and lower magnetic boots is all thick than magnet steel.

Trapezoidal one side of trapezoidal groove described above and horizontal direction angle are that 20 ° ± 1.5 °, another side and horizontal direction angle are 30 ° ± 1.5 °.This crimping fixed sturcture reliability is high, easily dismounting.

The direct conduction form that the utility model adopts upper and lower coil leading-out terminal, binding post, conductive lead wire spring and single bushing binding post to weld together, its conduction reliability is high, can there is not the switch-on and-off phenomenon causing because of loose contact, the problem of having avoided the electric signal distortion that sliding contact causes, stable output signal is reliable; Upper and lower spring leaf is no longer gold-plated, and upper and lower magnetic boots are no longer silver-plated, and its technique is simple, and cost is low; Especially the utility model has been saved interior contact chip and lower gasket, and it is simple in structure, and easily, cost further reduces in assembling.Coil former is integrated part, no longer scattering in vibration frequently, has extended its serviceable life.Structure between upper and lower coil, upper and lower magnetic boots and magnet steel, compensated loop, makes its assembly precision higher, and franchise little (franchise is ± 2.5%), degree of distortion are little; The thickness that has increased magnetic boots, is equivalent to increase magnetic field width, makes the narrow winding of the utility model, wide magnetic field, and magnetic field is more even, output is more stable; Even if some distortion of upper and lower spring leaf, winding still can be in magnetic field, and stable output signal is high, thereby makes seismoreceiver reach the object that degree of distortion is little, parameter consistency is good.In a word, the utility model is simple in structure, cost is low, dependability is high, long service life, magnetic field homogeneity is good, and parameter consistency is good, franchise little (franchise is ± 2.5%), degree of distortion little (< 0.1%), simple in structure, cost is low, reliability is high, good stability, life-span are long, and anti-drop number of times is more than 10000 times.

Accompanying drawing explanation

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

Fig. 2 is the A portion enlarged drawing of Fig. 1;

Fig. 3 is the structural representation of the circular jump ring of C shape in the utility model;

Fig. 4 is the structural representation of upper magnetic boots in the utility model.

Embodiment

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

As shown in Figure 1, Figure 2 and Figure 3, the present embodiment comprises shell 8, crimping is fixed on upper cover 1 and the lower cover 10 of shell 8 upper and lower ends, be arranged on the coil former 6 in shell 8, be wrapped in the upper and lower coil 7 and 17 in the upper and lower wire casing outside coil former 6, be arranged on magnet steel 5 and upper and lower magnetic boots 4 and 18 in coil former 6, upper spring sheet 12, lower spring sheet 13, compensated loop 14, insulcrete 9, two single bushing binding posts 2, conductive lead wire spring 11 and binding posts 3.The deformation direction of upper and lower spring leaf 12 and 13 main muscle is counterclockwise, and it can adopt distortion little, the spring leaf that thickness is 0.08mm.Coil former 6 can adopt aluminium matter oxide isolated coil former.Magnet steel 5 can adopt column Nd-Fe-B magnet steel.Each accessory machining precision by franchise ± 0.025 bring up to ± 0.015.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 ends are welded on edge insulator and are connected on the binding post 3 in coil former 6 binding post holes, and the leading-out terminal of binding post 3 other ends 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 rims, and lower magnetic boots 18 lower ends are crimped on lower spring sheet 13 inner edges that are enclosed within on lower cover 10 boss.Circular jump ring 15 crimping of beryllium copper C shape that the outer cause of upper spring sheet 12 embeds in the trapezoidal groove at step place, coil former upper end, be supported within the scope of the φ 0.80mm in trapezoidal groove are fixed in the trapezoidal groove at coil former 6 step places, upper end, and one side of trapezoidal groove and horizontal direction angle are arbitrarily angled (being 30 °) between 28.5-31.5 ° of arbitrarily angled (being 20 °) between 18.5-21.5 °, another side and horizontal direction angle in figure in figure.Upper magnetic boots 4 upper ends are crimped on upper spring sheet 12 inner edges that are enclosed within on upper cover 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 deformation direction of upper and lower spring leaf 12 and 13 main muscle is counterclockwise.Compensated loop 14 is enclosed within outside magnet steel 5, and its height is higher than magnet steel 5, and insert in the groove 24 and 23 of upper and lower magnetic boots 4 and 18 compensated loop 14 and the upper and lower end of magnet steel 5, and compensated loop 14 can freely rotate.Upper and lower magnetic boots 4 and 18 thickness are all thick than magnet steel 5.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 central axes.16 is the O-ring seal of crimping between upper cover 1 and lower cover 10 and shell 8.

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

Claims (2)

1. the vertical seismic wave detector that uniformity of magnetic field is high, comprise shell, crimping is fixed on upper cover and the lower cover of the upper and lower end of shell, coil former is in the enclosure set, be wrapped in the upper and lower coil in the upper and lower wire casing outside coil former, be arranged on magnet steel and upper and lower magnetic boots in coil former, upper spring sheet, lower spring sheet, insulcrete and compensated loop; It is characterized in that: it also comprises two single bushing binding posts, conductive lead wire spring and binding posts; 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 edge insulator and is connected on the binding post in coil former binding post hole, 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 being enclosed within on lower cover boss, the trapezoidal groove circular jump ring crimping of C shape interior, that be supported in trapezoidal groove that the outer cause of upper spring sheet embeds step place, coil former upper end is fixed in the trapezoidal groove at step place, coil former upper end, and upper magnetic boots upper end is crimped on the upper spring sheet inner edge being enclosed within on 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; The deformation direction of the main muscle of upper and lower spring leaf is counterclockwise; Compensated loop is enclosed within outside magnet steel, and its height is higher than magnet steel, and insert in the groove of upper and lower magnetic boots the upper and lower end of compensated loop and magnet steel, and compensated loop can freely rotate; The thickness of upper and lower magnetic boots is all thick than magnet steel.

2. the vertical seismic wave detector that uniformity of magnetic field according to claim 1 is high, is characterized in that: trapezoidal one side of described trapezoidal groove and horizontal direction angle are that 20 ° ± 1.5 °, another side and horizontal direction angle are 30 ° ± 1.5 °.