Automatic telescopic detector

Abstract

The present invention provides an automatic telescopic geophone, which is mainly composed of a geophone body and a geophone tail cone. The geophone body is composed of a geophone body housing, a servo motor, a large gear, a small gear, a support plate, and a support shaft. The servo motor provides power for the gear transmission, and the small gear drives the large gear to provide a large torque. The geophone tail cone is mainly composed of a cylindrical housing, a central shaft, a bearing seat, an impeller, a fixing pin, a latch, a telescopic auxiliary tail cone, a guide sleeve, a tail cone sleeve, a blade-shaped tail cone, and a bearing end cover. The telescopic auxiliary tail cone of the geophone reciprocates in the impeller through the latch, and the telescopic auxiliary tail cone is inserted into the soil under the push of the impeller. The blade-shaped tail cone is obtained by cutting 7 grooves. The telescopic auxiliary tail cone and the blade-shaped tail cone both increase the contact area between the tail cone and the soil, so that the coupling effect of the geophone tail cone and the earth is better.

Description

Technical Field

[0001] The invention relates to the technical field of seismic exploration, and in particular to an automatic telescopic geophone. Background Art

[0002] A seismic detector is an electromechanical conversion device that converts seismic waves transmitted to the ground into electrical signals. It is a key component for field data collection of seismographs. The detector that picks up the signal needs to insert its tail cone into the ground to achieve coupling between the tail cone and the earth, thereby effectively collecting signals. However, in the current use of most seismic detectors, the quality of the collected echo signal is poor because the inserted tail cone is not in close contact with the soil and the coupling quality is poor, which hinders the analysis of subsequent data and reduces the quality of seismic inversion. Summary of the invention

[0003] The present invention provides an automatic telescopic geophone, the purpose of which is to solve the problem of loose contact between the tail vertebra and the ground and poor coupling quality mentioned in the above background technology.

[0004] The technical solution adopted by the present invention to solve the technical problem is as follows: the present invention is an automatic telescopic geophone, which mainly includes a geophone body and a geophone tail cone; the geophone body is composed of a geophone body shell, a servo motor, a small gear, a large gear, a support plate, and a support shaft, wherein the servo motor is fixed on the support plate, the small gear is installed on the motor main shaft, the large gear is installed on the central rotating shaft, and the support shaft is connected to the geophone body shell; the geophone tail cone is mainly composed of a cylindrical shell, a central rotating shaft, a cylindrical shell, a large gear, a large gear, a support plate, and a support shaft. , bearing seat, impeller, fixing pin, latch, telescopic auxiliary tail vertebra, guide sleeve, tail vertebra sleeve, blade-shaped tail vertebra, bearing end cover. The central shaft is fixedly supported by two sections of bearing seats. The impeller is fixed on the central shaft by a fixing pin. The telescopic auxiliary tail vertebra is detachably connected to the latch. The latch can reciprocate in the cam. The cam indirectly pushes the telescopic auxiliary tail vertebra to complete its extension and contraction. The main tail vertebra is connected to the upper part of the cylindrical shell through the tail vertebra sleeve. The blade-shaped tail vertebra on the main tail vertebra is obtained by cutting 7 equally spaced 5mm deep grooves.

[0005] Compared with the prior art, the present invention has the following advantages:

[0006] 1. The servo motor is used as the driving source for the extension and retraction of the tail vertebrae, realizing the full automatic control of the tail vertebrae;

[0007] 2. The transmission method of using a small gear to drive a large gear to rotate is conducive to increasing the driving torque and making it easier to insert the auxiliary tail vertebra into the soil;

[0008] 3. The telescopic auxiliary tail vertebra structure is adopted to make the tail vertebra of the seismic detector contact more closely with the surrounding soil;

[0009] 4. The main tail vertebrae adopts a blade-shaped tail vertebrae structure, which increases the contact area between the main tail vertebrae and the ground and improves the coupling effect between the tail vertebrae and the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of an automatic telescopic detector of the present invention;

[0011] Figure 2 It is a structural schematic diagram of the main body of the seismic geophone of the present invention;

[0012] Figure 3 It is a schematic diagram of the tail cone structure of the seismic geophone of the present invention;

[0013] Figure 4 This is a schematic diagram of the meshing transmission between the pinion and the gear of the present invention;

[0014] Figure 5 It is a schematic diagram of the impeller, the extended auxiliary tail cone and the latch structure of the present invention;

[0015] Figure 6 is a top view of the telescopic auxiliary tail vertebra of the present invention before it is extended;

[0016] Figure 7 is a top view of the telescopic auxiliary tail vertebra of the present invention after being extended;

[0017] In the figure: 1. servo motor, 2. support plate, 3. large gear, 4. small gear, 5. support shaft, 6. central shaft, 7. bearing seat, 8. telescopic auxiliary tail vertebra, 9. guide sleeve, 10. fixing pin, 11. impeller, 12. latch, 13. bearing end cover, 14. tail vertebra sleeve, 15. blade-shaped tail vertebra, 16. main tail vertebra, 17. seismic detector body, 18. cylindrical shell, 19. seismic detector tail vertebra, 20. seismic wave detector body shell. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings and examples:

[0019] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the present invention is an automatic telescopic geophone, which mainly includes a geophone body 17 and a geophone tail cone 19. The geophone body 17 is mainly composed of a geophone body shell 20, a servo motor 1, a support plate 2, a large gear 3, a small gear 4, and a support shaft 5. The servo motor 1 is fixed on the support plate 2, the small gear 4 is installed on the servo motor main shaft, the large gear 3 is installed on the central shaft, and the support shaft 5 is connected to the geophone body shell 20. When the servo motor 1 drives, the small gear 4 rotates, and the small gear 4 rotates. The gear 4 drives the large gear 3 meshing with it to rotate; the seismic detector tail vertebra 19 is composed of a central rotating shaft 6, a bearing seat 7, a telescopic auxiliary tail vertebra 8, a guide sleeve 9, a fixing pin 10, an impeller 11, a latch 12, a bearing end cover 13, a tail vertebra sleeve 14, a blade-shaped tail vertebra 15, and a cylindrical shell 18. The upper and lower ends of the central rotating shaft 6 are respectively supported and fixed by two bearing seats 7, the upper end of the central rotating shaft 6 cooperates with the large gear 3, the impeller 11 is fixedly connected to the central rotating shaft 6 through the fixing pin 10, and the telescopic auxiliary tail vertebra 8 is fixedly connected to the latch 12.

[0020] like Figure 5 , Figure 6 , Figure 7 As shown, the telescopic auxiliary tail cone 8 is extended and retracted through the impeller 11. The latch 12 is initially located at one end of the arc segment profile of the impeller 11. Driven by the servo motor 1, the pinion 4 rotates, and the large gear 3 rotates synchronously under the gear meshing transmission, so that the central shaft 6 rotates synchronously with the large gear 3. The impeller 11 rotates along the central shaft 6 under the fixing action of the fixing pin 10. While the impeller 11 rotates, the latch 12 starts to make a curved motion along the arc segment profile of the impeller 11, and the extension pin 12 fixedly connected to the latch 12 is moved. The retractable auxiliary tail vertebrae 8 are extended synchronously. Since the guide sleeve 9 is welded on the cylindrical shell 18, under the support and guiding action of the guide sleeve 9, the telescopic auxiliary tail vertebrae 8 are further extended to the outside of the cylindrical shell 18 until the latch 12 moves to the other end of the arc segment contour. After completing a pushing stroke, the servo motor 1 stops driving, and the small gear 4, the large gear 3, the central shaft 6, and the impeller 11 stop rotating at the same time. At this time, all the telescopic auxiliary tail vertebrae 8 are extended out of the cylindrical shell 18. When it needs to be retracted, the servo motor 1 drives in the reverse direction to complete the retraction process of the entire telescopic auxiliary tail vertebrae 8.

[0021] like Figure 1 As shown, the main tail vertebra 16 is composed of a tail vertebra sleeve 14, a bearing end cover 13, and a blade-shaped tail vertebra 15. The bearing end cover 13 connects the top of the tail vertebra sleeve 14 to the bottom of the cylindrical shell 18. The top of the cylindrical shell 18 is connected to the main shell 20 of the seismic detector through four support shafts 5. The blade-shaped tail vertebra 15 is obtained by cutting out 7 equally spaced grooves with a depth of 5 mm.

Claims

1. An automatic telescopic geophone, the geophone mainly comprising a geophone body (17) and a geophone tail cone (19), wherein the geophone body (17) is mainly composed of a geophone body housing (20), a servo motor (1), a support plate (2), a large gear (3), a small gear (4), and a support shaft (5), wherein the servo motor (1) is fixed on the support plate (2), the small gear (4) is mounted on the motor main shaft, the large gear (3) is mounted on the central shaft (6), and the support shaft (5) is connected to the geophone body housing (20); the geophone tail cone (19) is composed of a central shaft (6), a bearing seat (7), a telescopic auxiliary tail cone (8), a guide sleeve (9), a fixing pin (10), an impeller (11), a latch pin (12), a bearing end cover (13), a tail cone sleeve (14), a blade-shaped tail cone (15), and a cylindrical housing (18); wherein: The upper and lower ends of the central rotating shaft (6) are supported and fixed by two bearing seats (7) respectively. The upper end of the central rotating shaft (6) is connected to the large gear (3). The impeller (11) is fixed on the central rotating shaft (6) through a fixing pin (10). The telescopic auxiliary tail vertebra (8) is ensured to reciprocate in the arc segment contour of the impeller (11) through a latch pin (12). The guide sleeve (9) is welded on the cylindrical shell (18). The telescopic auxiliary tail vertebra (8) is extended and retracted into the cylindrical shell (18) through the guide sleeve. The main tail vertebra (16) is composed of a tail vertebra sleeve (14), a bearing end cover (13), and a blade-shaped tail vertebra (15). The bearing end cover (13) connects the tail vertebra sleeve (14) with the cylindrical shell (18). The cylindrical shell (18) is connected to the main shell (20) of the seismic detector through four supporting shafts (5). The blade-shaped tail vertebra (15) is obtained by cutting 7 grooves with equal spacing, and the groove depth is 5 mm.

2. The automatic telescopic detector according to claim 1, characterized in that: The detector auxiliary tail vertebra adopts a servo motor (1) to drive its extension and retraction, and adopts a transmission method in which a small gear (4) drives a large gear (3) to rotate.

3. The automatic telescopic detector according to claim 1, characterized in that: The latch (12) performs reciprocating motion in the arc segment profile of the impeller (11), and the latch (12) drives the telescopic auxiliary tail vertebra (8) to extend and retract on the cylindrical housing (18). The guide sleeve (9) is fixed on the cylindrical housing (18), ensuring that the telescopic auxiliary tail vertebra (8) can be extended and retracted in a directional manner, and at the same time plays a role in supporting the telescopic auxiliary tail vertebra (8).

4. The automatic telescopic detector according to claim 1, characterized in that: The lower part of the main coccygeal vertebra (16) is provided with 7 equally spaced cutting grooves, each of which has a depth of 5 mm. The 7 equally spaced cutting grooves form a blade-shaped coccygeal vertebra (15) structure.

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