Single-layer double-needle mining instrument movement

Abstract

The single-layer double-needle mining instrument movement comprises a small clamping plate and a large clamping plate, the large clamping plate and the small clamping plate are fixedly installed through two supporting columns to form a space, a shaft gear, a hairspring rotating shaft and a rotating shaft are installed in the space between the large clamping plate and the small clamping plate in an embedded mode through shaft sleeves, and the rotating shaft is provided with a sector gear. The arc-shaped end face of the sector gear is provided with teeth and is in meshing transmission with a shaft gear, a gear piece A is riveted on the shaft gear, a hairspring with a seat is riveted at the lower end of a hairspring rotating shaft, a hairspring supporting column is riveted on the large clamping plate, the outer end of the hairspring with the seat is inlaid on the hairspring supporting column through a pin, and a gear piece B is riveted at the upper end of the hairspring rotating shaft. The top end of the shaft gear and the top end of the hairspring rotating shaft extend out of the outer side of the small clamping plate and are provided with a sleeve gear and a gear piece C respectively, and the sleeve gear and the gear piece C are in meshing transmission. The structure is simple and reasonable, and precision is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of movement, and in particular relates to a single-layer double-needle mining instrument movement. Background Art

[0002] Weight-indicating instruments are mostly used in petroleum and geological exploration. They are display instruments that indicate and record changes in the hanging weight and drilling pressure of drill tools during drilling or workover operations of various drilling rigs and workover rigs. They can help drillers understand the working parameters of the drilling rigs and workover rigs during drilling or workover operations and judge the working status of the drill tools. The movement used in this type of instrument generally has the following disadvantages: 1. The structural dimensions are large and not compact; 2. The materials used for the splints, fan gears, and pillars are thick and heavy; 3. The accuracy is difficult to control. Utility Model Content

[0003] In order to overcome the above technical problems existing in the prior art, the purpose of the present invention is to provide a single-layer double-needle mining instrument movement with a simple and reasonable structure and high precision.

[0004] The single-layer double-needle mining instrument movement provided by the utility model comprises a small splint and a large splint, the large splint and the small splint are fixedly installed by two pillars to form a space, and a shaft gear, a hairspring rotating shaft and a rotating shaft are inlaid and installed in the space between the large splint and the small splint through a shaft sleeve, the shaft gear, hairspring rotating shaft and rotating shaft can rotate freely in the inner hole of the shaft sleeve, the rotating shaft is installed with a fan-shaped gear, the arcuate end face of the fan-shaped gear is provided with teeth and meshes with the shaft gear for transmission, a gear piece A is riveted on the shaft gear, a hairspring with a seat is riveted on the lower end of the hairspring rotating shaft, a hairspring pillar is riveted on the large splint, the outer end of the hairspring with a seat is inlaid on the hairspring pillar by a pin, and a gear piece B is riveted on the upper end of the hairspring rotating shaft, the gear piece A meshes with the gear piece B for transmission, the top ends of the shaft gear and the hairspring rotating shaft extend out of the outside of the small splint, and are respectively installed with a sleeve gear and a gear piece C, and the sleeve gear and gear piece C mesh for transmission.

[0005] One end of the support column is riveted to the large splint, and the other end is fixed to the small splint by screws.

[0006] The gear piece C is fastened to the top end of the hairspring shaft by screws.

[0007] The shaft gear, hairspring shaft and shaft are arranged on the same straight line.

[0008] The small splint is a J-shaped plate, and the two pillars are respectively located at two ends of the small splint.

[0009] The tail of the sector gear is provided with a tail long groove, and the middle position of the sector gear is provided with a weight-reducing hole for installation. The hairspring shaft is installed through the weight-reducing hole and embedded between the large splint and the small splint. The sector gear is located in the space between the hairspring with seat and the gear piece B.

[0010] The single-layer double-needle mining instrument movement provided by the utility model has the beneficial effect of having a simple and reasonable structure, wherein a gear piece A and a gear piece B are provided for meshing transmission, the top ends of the shaft gear and the hairspring shaft both extend outward from the outside of the small splint, and are respectively provided with a sleeve gear and a gear piece C, and the sleeve gear and the gear piece C are meshed for transmission, and have a double-layer double-tube double-fan transmission and a double-needle indication function. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0012] Figure 2 yes Figure 1 AA section view;

[0013] Note in the figure:

[0014] 1. Small splint; 2. Large splint; 3. Screw A; 4. Pillar; 5. Shaft gear; 6. Sleeve gear; 7. Gear plate A; 8. Gear plate B; 9. Hairspring shaft; 10. Hairspring with seat; 11. Bushing A; 12. Screw B; 13. Gear plate C; 14. Bushing B; 15. Shaft; 16. Sector gear; 17. Pin; 18. Hairspring pillar; 19. Lightening hole installation; 20. Tail long groove. DETAILED DESCRIPTION

[0015] The single-layer double-needle mining instrument movement provided by the present invention will be described in detail below with reference to the accompanying drawings and in combination with an embodiment.

[0016] Example

[0017] Reference Figure 1-Figure 2The single-layer double-needle mining instrument movement of this embodiment includes a small splint 1 and a large splint 2. The large splint 2 and the small splint 1 are fixedly installed by two pillars 4 to form a space. The space between the large splint 2 and the small splint 1 is inlaid with a shaft gear 5, a hairspring shaft 9, and a shaft 15 through a shaft sleeve. The shaft gear 5, the hairspring shaft 9, and the shaft 15 can rotate freely in the inner hole of the shaft sleeve. The shaft 15 is equipped with a sector gear 16. The arc-shaped end face of the sector gear 16 is provided with teeth and meshes with the shaft gear 5 to transmit The shaft gear 5 is riveted with a gear piece A7, the lower end of the hairspring shaft 9 is riveted with a seated hairspring 10, and the large plate 2 is riveted with a hairspring support 18. The outer end of the seated hairspring 10 is mounted on the hairspring support 18 via a pin 17. The upper end of the hairspring shaft 9 is riveted with a gear piece B8, which meshes with the gear piece B8. The top ends of the shaft gear 5 and the hairspring shaft 9 extend beyond the small plate and are respectively mounted with a sleeve gear 6 and a gear piece C13, which mesh with the gear piece C13. The shaft gear 5 and the fan gear 16, the gear piece A7 and the gear piece B8, and the sleeve gear 6 and the gear piece C13 mesh from bottom to top. Specifically, the shaft gear 5 and the fan gear 16, the gear piece A7 and the gear piece B8 are located in the space between the small plate 1 and the large plate 2, and the sleeve gear 6 and the gear piece C13 are located on the upper side of the small plate 1.

[0018] Furthermore, the shaft gear 5, the hairspring shaft 9, the shaft 15 and the small splint 1 are mounted through the shaft sleeve A11, and the shaft gear 5, the hairspring shaft 9, the shaft 15 and the large splint 2 are mounted through the shaft sleeve B14.

[0019] One end of the support 4 is riveted to the large splint 2, and the other end is fixed to the small splint 1 by a screw A3.

[0020] The gear piece C13 is fastened to the top of the hairspring shaft 9 by a screw B12.

[0021] The shaft gear 5, the hairspring shaft 9 and the shaft 15 are arranged on the same straight line.

[0022] The small splint 1 is a J-shaped plate, and the two pillars 4 are respectively located at two ends of the small splint 1.

[0023] The tail of the sector gear 16 is provided with a tail long groove 20, and the middle position of the sector gear 16 is provided with a weight-reducing hole installation 19. The hairspring shaft 9 passes through the weight-reducing hole installation 19 and is embedded between the large splint 2 and the small splint 1. The sector gear 16 is located in the space between the hairspring with seat 10 and the gear piece B8.

[0024] The tail of the movement's sector gear is fixedly connected to the pressure gauge spring fitting through an adjusting connecting rod and accessories. The displacement under working pressure causes the movement's meshing gear to rotate, and finally the pointer embedded in the cone end of the shaft gear and the pointer embedded in the cone end of the sleeve gear indicate the reading. The cone end of the shaft gear and the cone end of the sleeve gear are one end of the small splint extending from them.

[0025] Since the hairspring is embedded in the hairspring shaft, a reaction force is generated during the gear meshing transmission, so that the sector gear meshes with the shaft gear, the gear piece A meshes with the gear piece B, and the sleeve gear meshes with the gear piece C, all of which can eliminate the gap and ensure accuracy.

[0026] It has the function that the sleeve gear rotates four times when the shaft gear rotates one circle, that is, the deflection angle of the pointer on the sleeve gear is four times the deflection angle of the pointer on the shaft gear.

Claims

1. A single-layer double-needle mining instrument movement, comprising a small splint (1) and a large splint (2), wherein the large splint (2) and the small splint (1) are fixedly mounted by two pillars (4) to form a space, wherein a shaft gear (5), a hairspring shaft (9), and a rotating shaft (15) are embedded and mounted in the space between the large splint (2) and the small splint (1) through a shaft sleeve, wherein the shaft gear (5), the hairspring shaft (9), and the rotating shaft (15) are freely rotatable in the inner hole of the shaft sleeve, and wherein: The rotating shaft (15) is provided with a sector gear (16), the arc-shaped end surface of the sector gear (16) is provided with teeth and meshes with the shaft gear (5) for transmission. A gear piece A (7) is riveted on the shaft gear (5). The lower end of the hairspring rotating shaft (9) is riveted with a hairspring with a seat (10). A hairspring pillar (18) is riveted on the large splint (2). The outer end of the hairspring with a seat (10) is embedded in the hairspring pillar (18) through a pin (17). A gear piece B (8) is riveted on the upper end of the hairspring rotating shaft (9). The gear piece A (7) meshes with the gear piece B (8) for transmission. The top ends of the shaft gear (5) and the hairspring rotating shaft (9) extend outward from the small splint and are respectively provided with a sleeve gear (6) and a gear piece C (13). The sleeve gear (6) and the gear piece C (13) mesh for transmission.

2. The single-layer double-hand mining instrument movement according to claim 1, characterized in that: One end of the support (4) is riveted to the large splint (2), and the other end is fixed to the small splint (1) by screws.

3. The single-layer double-hand mining instrument movement according to claim 1, characterized in that: The gear piece C (13) is fastened to the top end of the hairspring shaft (9) by screws.

4. The single-layer double-hand mining instrument movement according to claim 1, characterized in that: The shaft gear (5), the hairspring rotating shaft (9), and the rotating shaft (15) are arranged on the same straight line.

5. The single-layer double-hand mining instrument movement according to claim 1, characterized in that: The small splint (1) is a J-shaped plate, and the two pillars (4) are respectively located at the two ends of the small splint (1).

6. The single-layer double-hand mining instrument movement according to claim 1, characterized in that: The tail of the sector gear (16) is provided with a tail long groove (20), the middle position of the sector gear (16) is provided with a weight-reducing hole installation (19), the hairspring shaft (9) passes through the weight-reducing hole installation (19) and is embedded between the large splint (2) and the small splint (1), and the sector gear (16) is located in the space between the seat hairspring (10) and the gear piece B (8).

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