CN201331587Y - Core body for 1HZ detector - Google Patents

Abstract

The utility model discloses a core body for a 1HZ detector. A magnetic loop system of the core body adopts a double magnetic circuit with two steel magnets which are arranged in a magnetic sleeve; magnetic poles at two ends of the magnetic sleeve are connected with two shaft sleeves respectively; a spring of the core body, namely a coasting body of the movement quality system, is sleeved outside the magnetic sleeve; coil windings at the two ends of the coasting body extend into the magnetic sleeve; a plurality of spring leaves are mounted in an alternatively overlapped manner on a bracket of the two coil windings, and the spring leaves are located in the coasting body and sleeved on the shaft sleeves, axially limited by a clamp ring and a press ring or an end cover, and positioned in the circumferential direction via a positioning pin used for preventing torsion; the coil windings are connected with a signal transmission lead-out wire via a welded hair spring; and the lead-out wire is connected with a damping resistance arranged on an end cover. The utility model has more reasonable structure, changes the spring leaf installation manner, and solves the problems of nonuniformity and harmonic distortion in the magnetic circuit design, thereby reducing the cost and facilitating the maintenance.

Description

The 1HZ detector core body

Technical field

The utility model relates to passive velocity formula seismoreceiver, is specifically related to a kind of 1HZ detector core body of passive velocity formula seismoreceiver.

Background technology

We know, look at artificial earthquake, earthquake fine motion monitoring and seismic method in the fields such as metallic ore, and the low frequency seismoreceiver is one of indispensable instrument.Low-frequency seismograph can be divided into active and passive two big classes, generally comprises detector core body, protective case, horizontal adjustment screw, transmission cable or the like as passive class speed mode low frequency seismoreceiver.Wherein critical component is a detector core body, can form simple component or multi-component seismic wave detector by various combinations.

Seismoreceiver by frequency partition roughly can be divided into high frequency (60` ~ 100HZ), intermediate frequency (10 ~ 40HZ), low frequency (1 ~ 5HZ) and ultralow frequency (1HZ is following) four classes.Because the difference of application, the low-frequency seismograph frequency mainly is divided into 1HZ, 2 ~ 2.5HZ, 4 ~ 4.5HZ three major types by frequency.

Traditional passive class speed mode 1HZ wave detector will be because the unevenness of the detector core body magnetic Circuit Design of adorning in it will produce harmonic distortion; In addition, the chip architecture of the spring design also is another reason that causes harmonic distortion, and therefore this index of degree of distortion is not provided in the index that provides traditional passive class speed mode 1HZ wave detector.Traditional passive class speed mode 1HZ wave detector is to adopt the silver-plated crimping touch of spring leaf aspect signal transmission network, causes loose contact easily, and silver-plated material also can make cost higher.Traditional passive class speed mode 1HZ wave detector does not design external parallel resistance device, and the user can not satisfy the damping parameter value of own needs by external parallel resistance.

Summary of the invention

The deficiency that the utility model exists at traditional passive seismic detector of the velocity type core body, a kind of 1HZ detector core body is provided, its structure is more reasonable, the unevenness of magnetic Circuit Design and the problem of harmonic distortion have been solved, and convenient for maintaining, and can form vertical core body or the horizontal positioned core body placed by changing different spring leafs.

The purpose of this utility model is achieved in that to be equipped with in urceolus and comprises magnet steel, the magnetosheath tube, the magnetic loop system of magnetic pole, and comprise spring leaf, coil winding, the spring of coasting body-moving-mass system, magnetic loop system and spring-moving-mass system is by trim ring, end cap is fixed in the urceolus, described magnetic loop system is the double magnetic circuit that is provided with two magnet steel, two magnet steel are located at respectively in the magnetosheath tube, the two ends of magnetosheath tube are provided with magnetic pole respectively, two magnetic poles respectively connect an axle sleeve, the coasting body of described spring-moving-mass system is enclosed within outside the magnetosheath tube, the two ends of coasting body are respectively equipped with coil winding, two coil winding extend in the magnetosheath tube, between magnetosheath tube and magnetic pole and magnet steel, alternate respectively overlapping a plurality of spring leafs that are equipped with on the support of two coil winding, spring leaf is arranged in coasting body and is enclosed within on the axle sleeve, respectively by collar and trim ring or end cap axial limiting, a plurality of spring leafs are circumferentially located by being used to prevent the register pin that twists, be connected with connecting line between two coil winding, transmit extension line with hairspring and the signal of coil winding by welding and be connected, extension line is connected with damping resistance on being located at end cap.

Owing to adopt such scheme, magnetic loop system is designed to have the double magnetic circuit of the symmetry of two magnet steel, make magnetic circuit have more homogeneity, total harmonic distortion reduces greatly.A plurality of spring leafs of described spring-moving-mass system are enclosed within on the axle sleeve, respectively by collar and trim ring or end cap axial limiting, can prevent that spring leaf is radial and axial mobile, and circumferentially locate by being used to prevent the register pin that twists, can prevent that spring leaf mutual plane dislocation is mobile, prevent that simultaneously spring-moving-mass system from producing dislocation relative to magnetic system and moving, change the shape of hairspring, produce other bad result.Described coil winding is connected with signal transmission extension line by the hairspring of welding, adopt the conductor welding manner can avoid the signal transmission line contact to connect the instability that exists, especially adopting hairspring to do the elasticity transition connects, can guarantee the reliability of connective stability and signal, and the conductor material cost is also relatively low, cost-saved.The damping resistance that is provided with on end cap is connected with extension line, and the user can satisfy the damping parameter value of own needs by external parallel resistance, and is easy for installation feasible.

Described spring leaf is provided with interior ring, outer shroud, and interior ring, outer shroud link to each other by the arc elastic arm around three symmetrical distributions in the center of circle, is respectively equipped with to be used to prevent the pilot hole that twists on interior ring and outer shroud.Described spring leaf can be set to the horizontal spring sheet of core body horizontal positioned as required, and the arc elastic arm length sum of three symmetrical distributions on this spring leaf is less than the length of arc elastic arm circumference of living in; Also can be set to the vertical uprighting spring sheet of placing of core body as required, the arc elastic arm length sum of three symmetrical distributions on the spring leaf is greater than the length of arc elastic arm circumference of living in.Can just form vertical core body or horizontal core body by changing different spring leafs like this, the horizontal or vertical core body of varying number is put into corresponding protective case, can form vertical, level or many components 1HZ passive velocity formula seismoreceiver.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a double magnetic circuit system architecture synoptic diagram

Fig. 3 is spring-moving-mass system architecture synoptic diagram;

Fig. 4 is the chip architecture of the spring synoptic diagram on the level installation core body;

Fig. 5 is the vertical chip architecture of the spring synoptic diagram of installing on the core body.

In the accompanying drawing, 1 is collar, and 2 is spring leaf, 3 is large washer, and 4 is screw, and 5a, 5b are coil winding, 6 is the magnetosheath tube, and 7a, 7b are magnet steel, and 8a, 8b are the coil winding support, 9 is register pin, and 10 is small washer, and 11 is Upper shaft sleeve, 12 is end cap, and 13 is insulating washer, and 14 is resistance board, 15 is damping resistance, and 16 is extension line, and 17 is binding post, 18 is hairspring, and 19a, 19b are magnetic pole, and 20 is coasting body, 20a is a groove, and 21 is connecting line, and 22 is Lower shaft sleeve, 23 is sunk screw, and 24a, 24b are binding post, and 25 is urceolus, 26 is diaphragm seal, and 27 is trim ring.

Embodiment

Referring to Fig. 1 to Fig. 5, the embodiment of a kind of 1HZ detector core body of passive velocity formula seismoreceiver.The magnetic loop system that comprises magnet steel, magnetosheath tube, magnetic pole etc. is installed in column type urceolus 25, and the spring-moving-mass system that comprises spring leaf 2, coil winding, coasting body 20 etc., magnetic loop system and spring-moving-mass system is fixed in the urceolus 25 by trim ring 27, end cap 12.Described magnetic loop system is for being provided with two magnet steel 7a, the double magnetic circuit of 7b, described magnet steel is the alnico magnet of Ф 25 * 21mm, two magnet steel 7a, 7b is located at respectively in the magnetosheath tube 6, be provided with in the magnetosheath tube 6 the tube chamber is divided into two-part next door, two magnet steel 7a, 7b is separately positioned on the two sides, next door, be separately fixed in the groove on two sides, next door, on two magnet steel magnetic pole 19a is set respectively, 19b, magnetic pole is buckled on the magnet steel by the groove that is provided with, two magnetic pole 19a, 19b respectively connects an axle sleeve, be screwed with magnetic pole 19b by Upper shaft sleeve 11 1 ends of end cap 12 1 ends and be connected, the other end is inserted in and uses finger setting in the axis hole of end cap 12, Lower shaft sleeve 22 1 ends of pressured circle 27 1 ends are screwed with magnetic pole 19a and are connected, and the other end is inserted in the groove of trim ring 27 fixedly connected with sunk screw 23.The cylindric coasting body 20 of described spring-moving-mass system is enclosed within outside the magnetosheath tube 6, the two ends of coasting body 20 are respectively equipped with coil winding 5a, 5b, the support of described coil winding is the aluminium alloy post after surface insulation is handled, two winding coil support 8a, 8b is fixedlyed connected with coasting body 20 by screw 4 respectively, two coil winding extend in the magnetosheath tube 6, between magnetosheath tube 6 and magnetic pole and magnet steel, the support 8a of two coil winding, alternate respectively overlapping a plurality of spring leafs 2 that are equipped with on the 8b, be provided with the large washer 3 that is positioned at circumference between the two adjacent spring leafs of a plurality of spring leafs, be positioned at the small washer 10 in the center of circle, and the pad that is used to adjust, described spring leaf 2, large washer 3 is fixed on the coil winding support by register pin 9.Described spring leaf is arranged in coasting body 20 and is enclosed within respectively on Upper shaft sleeve 11 and the Lower shaft sleeve 22, the spring leaf 2 that is positioned at urceolus 25 bottoms one end by the collar 1 of clamping on the coasting body 20 and Lower shaft sleeve 22 ends with fixing trim ring 27 axial limitings of sunk screw 23, the spring leaf 2 that is positioned at urceolus 25 tops one end is by end cap 12 axial limitings that are screwed on the collar of clamping on the coasting body 20 and the urceolus 25, can prevent from that spring leaf is radial and axial to move; Alternate overlapping a plurality of spring leafs 2 are circumferentially located by being used to prevent the register pin that twists, and can prevent that spring leaf mutual plane dislocation from moving, and also prevent that spring-moving-mass system from producing dislocation relative to magnetic system and moving simultaneously.Ring 2a, outer shroud 2b in described spring leaf 2 is provided with, interior ring, outer shroud link to each other by the arc elastic arm 2c around three symmetrical distributions in the center of circle, are respectively equipped with to be used to prevent the pilot hole 2d that twists on interior ring and outer shroud.The horizontal spring sheet is set in the core body of horizontal positioned, and the arc elastic arm 2c length sum of three symmetrical distributions on this spring leaf is less than the length of arc elastic arm circumference of living in.In the vertical core body of placing the uprighting spring sheet is set, the arc elastic arm 2c length sum of three symmetrical distributions on this spring leaf is greater than the length of arc elastic arm circumference of living in.The processing mode of horizontal spring sheet, uprighting spring sheet is for adopting line cutting or corrosion after heat-treating profiled.Two coil winding 5a, be connected with connecting line 21 between the 5b, the two ends of connecting line 21 respectively be fixed on coil winding support 8a, binding post 24a in the 8b radial hole, the 24b welding, connecting line 21 is arranged in the axially extended groove 20a that coasting body 20 outer walls are provided with, welding hairspring 18 between the binding post of fixing on the binding post 24b of the coil winding 5b of close end cap 12 1 ends and the Upper shaft sleeve 11 17, binding post 17 and 16 welding of signal transmission extension line, extension line 16 and damping resistance 15 welding of being located on the end cap 12, damping resistance 15 is fixed on the damping sheet 14, damping sheet 14 in end cap 12 outer ends, is provided with insulating washer 13 between damping sheet 14 and the end cap 12 by screw retention.The hole, room of the screwing of urceolus 25 bottoms seals with diaphragm seal 26.

Claims (8)

1. 1HZ detector core body, in urceolus, be equipped with and comprise magnet steel, the magnetosheath tube, the magnetic loop system of magnetic pole, and comprise spring leaf, coil winding, the spring of coasting body-moving-mass system, magnetic loop system and spring-moving-mass system is by trim ring, end cap is fixed in the urceolus, it is characterized in that: described magnetic loop system is the double magnetic circuit that is provided with two magnet steel, two magnet steel are located at respectively in the magnetosheath tube, the two ends of magnetosheath tube are provided with magnetic pole respectively, two magnetic poles respectively connect an axle sleeve, the coasting body of described spring-moving-mass system is enclosed within outside the magnetosheath tube, the two ends of coasting body are respectively equipped with coil winding, two coil winding extend in the magnetosheath tube, between magnetosheath tube and magnetic pole and magnet steel, alternate respectively overlapping a plurality of spring leafs that are equipped with on the support of two coil winding, spring leaf is arranged in coasting body and is enclosed within on the axle sleeve, respectively by collar and trim ring or end cap axial limiting, a plurality of spring leafs are circumferentially located by being used to prevent the register pin that twists, be connected with connecting line between two coil winding, hairspring and the signal of coil winding by welding transmits extension line and is connected, and extension line is connected with damping resistance on being located at end cap.

2. 1HZ detector core body according to claim 1 is characterized in that: the pad that is provided with packing ring between the two adjacent spring leafs of described a plurality of spring leafs and is used to adjust.

3. 1HZ detector core body according to claim 1, it is characterized in that: described spring leaf is provided with interior ring, outer shroud, in ring, outer shroud link to each other by arc elastic arm around three symmetrical distributions in the center of circle, on interior ring and outer shroud, be respectively equipped with and be used to prevent the pilot hole that twists.

4. according to claim 1 or 2 or 3 described 1HZ detector core bodies, it is characterized in that: described spring leaf is the horizontal spring sheet of core body horizontal positioned, and the arc elastic arm length sum of three symmetrical distributions on the spring leaf is less than the length of arc elastic arm circumference of living in.

5. according to claim 1 or 2 or 3 described 1HZ detector core bodies, it is characterized in that: described spring leaf is the vertical uprighting spring sheet of placing of core body, and the arc elastic arm length sum of three symmetrical distributions on the spring leaf is greater than the length of arc elastic arm circumference of living in.

6. 1HZ detector core body according to claim 1 is characterized in that: be provided with in the described magnetosheath tube tube chamber is divided into two-part next door, two magnet steel are separately positioned on the two sides, next door.

7. according to claim 1 or 6 described 1HZ detector core bodies, it is characterized in that: described magnet steel is an alnico magnet.

8. 1HZ detector core body according to claim 1 is characterized in that: the support of described coil winding is the aluminium alloy post after surface insulation is handled.

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