Powder fine grinding device for drilling aid production

Abstract

The utility model relates to the field of drilling aid production equipment, in particular to a fine powder grinding device for drilling aid production, which comprises a frame, a grinding tank arranged on the frame, a grinding groove arranged in the grinding tank, a grinding layer laid in the grinding groove, a blanking pipe extending to the outside of the grinding tank and a driving shaft arranged in the blanking pipe. The upper end of the driving shaft is connected with a grinding cone, a driving mechanism is arranged on the machine frame below the grinding tank and comprises a driving motor and a telescopic transmission shaft, the telescopic transmission shaft comprises an outer pipe and an inner pipe, the outer pipe and the inner pipe are connected with the driving shaft and the driving motor respectively, a bearing seat is arranged on the outer side of the outer pipe, and a bearing fixedly connected with the outer pipe is installed in the bearing seat. A plurality of telescopic mechanisms are vertically arranged on the bearing seat, and the lower ends of the telescopic mechanisms are fixedly connected with the rack. The powder grinder is suitable for grinding requirements of powder with different particle sizes, and is high in equipment adaptability.

Description

Technical Field

[0001] The utility model relates to the field of production equipment for drilling aids, in particular to a fine grinding device for powdery materials used in the production of drilling aids. Background Art

[0002] As an important auxiliary material for geological exploration, drilling aids are used to break rock cores, carry rock cuttings, lubricate and cool drill bits, balance formation pressure, protect the wellbore, etc. They have the advantages of maintaining good mud properties and increasing drilling speed. In the production of drilling aids, a variety of raw materials are mixed, including liquids and solids. In order to fully mix the solid raw materials with the liquid raw materials, it is necessary to grind the solid raw materials. A grinding device is required for grinding. The existing grinding devices are not convenient for adjusting the grinding particle size and have poor adaptability. Therefore, it is particularly necessary to develop a fine grinding device for powdery materials used in the production of drilling aids that can quickly adjust the grinding particle size. Summary of the Invention

[0003] The purpose of the utility model is to provide a fine grinding device for powdery materials used in the production of drilling aids, which has the advantages of being able to quickly adjust the grinding particle size and strong adaptability.

[0004] The adopted technical solution is as follows:

[0005] A fine grinding device for powdery materials used in the production of drilling aids includes a frame. A grinding tank is arranged on the frame. A grinding groove is arranged inside the grinding tank. A grinding layer is laid in the grinding groove. A feeding pipe extending to the outside of the grinding tank is arranged in the grinding groove. A driving shaft is arranged in the feeding pipe. The upper end of the driving shaft is connected with a grinding cone. A driving mechanism is arranged on the frame below the grinding tank. The driving mechanism includes a driving motor and a telescopic transmission shaft. The telescopic transmission shaft includes an outer pipe and an inner pipe. The outer pipe and the inner pipe are respectively connected with the driving shaft and the driving motor. A bearing seat is arranged on the outer side of the outer pipe. A bearing fixedly connected with the outer pipe is installed in the bearing seat. A plurality of telescopic mechanisms are arranged vertically on the bearing seat. The lower ends of the telescopic mechanisms are fixedly connected with the frame.

[0006] Preferably, the upper end of the grinding tank is covered with an end cover. A feeding pipe is arranged in the middle of the end cover. Two electric plug valves are arranged at intervals from bottom to top on the feeding pipe.

[0007] Preferably, the upper end of the grinding cone is provided with a guiding cone that is small at the top and large at the bottom.

[0008] Preferably, spiral blades are arranged on the side surface of the driving shaft in the feeding pipe.

[0009] Preferably, the telescopic mechanism is a hydraulic telescopic rod.

[0010] Preferably, a material blocking plate is arranged on the outer pipe above the bearing seat.

[0011] Preferably, a retaining wall is provided below the baffle plate.

[0012] Compared with the prior art, the beneficial effects are as follows:

[0013] 1. The utility model drives the bearing seat to move up and down by using the telescopic mechanism, thereby driving the driving shaft and the grinding cone to move up and down, changing the gap between the grinding cone and the grinding groove, so as to meet the grinding requirements of powders with different particle sizes, and the equipment has strong adaptability.

[0014] 2. A spiral blade is arranged on the side of the driving shaft in the blanking pipe of the utility model, and the rotating spiral blade boosts the powder in the blanking pipe to slide down, facilitating the blanking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. is a schematic structural diagram of a fine grinding device for powders used in the production of drilling aids according to the utility model,

[0016] Figure 2 is Figure 1 the structural schematic diagram at A in

[0017] Figure 3 is Figure 1 the structural schematic diagram at B in

[0018] In the figure: 1, frame; 2, grinding tank; 3, grinding groove; 4, grinding layer; 5, blanking pipe; 6, driving shaft; 7, spiral blade; 8, grinding cone; 9, guiding cone; 10, end cover; 11, feed pipe; 12, electric slide valve; 13, driving motor; 14, outer pipe; 15, inner pipe; 16, bearing seat; 17, telescopic mechanism; 18, baffle plate; 19, retaining wall; 20, bearing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further describes the utility model with reference to specific embodiments, as Figures 1 to 3 shown:

[0020] Embodiment 1: A fine grinding device for powders used in the production of drilling aids, including a frame 1, on which a grinding tank 2 is provided. Inside the grinding tank 2, a grinding groove 3 is provided. A grinding layer 4 is laid in the grinding groove 3. The grinding layer 4 is prior art and will not be elaborated here. The grinding groove 3 is provided with a blanking pipe 5 extending to the outside of the grinding tank 2. Inside the blanking pipe 5, a driving shaft 6 is provided. The upper end of the driving shaft 6 is connected to a grinding cone 8. The grinding cone 8 is arranged in the grinding groove 3. The powder is between the side of the grinding cone 8 and the grinding layer 4, and the powder is ground as the grinding cone 8 rotates.

[0021] A driving mechanism is provided on the frame 1 below the grinding tank 2. The driving mechanism includes a driving motor 13 and a telescopic transmission shaft. The telescopic transmission shaft is a prior art and will not be elaborated here. The telescopic transmission shaft includes an outer tube 14 and an inner tube 15. The outer tube 14 and the inner tube 15 are connected by spline sliding. The outer tube 14 and the inner tube 15 are respectively connected to the drive shaft 6 and the driving motor 13.

[0022] A bearing seat 16 is provided on the outer side of the outer tube 14. A bearing 20 fixedly connected to the outer tube 14 is installed inside the bearing seat 16. A plurality of telescopic mechanisms 17 are vertically arranged on the bearing seat 16. The lower end of the telescopic mechanism 17 is fixedly connected to the frame 1. The telescopic movement of the telescopic mechanism 17 drives the bearing seat 16 to move up and down, thereby driving the drive shaft 6 and the grinding cone 8 to move up and down, changing the gap between the grinding cone 8 and the grinding groove 3, so as to meet the grinding requirements of powders with different particle sizes.

[0023] Embodiment 2: A fine grinding device for drilling aid production includes a frame 1. A grinding tank 2 is provided on the frame. A grinding groove 3 is provided inside the grinding tank 2. A grinding layer 4 is laid in the grinding groove 3. The grinding layer 4 is a prior art and will not be elaborated here. A feeding pipe 5 extending to the outside of the grinding tank 2 is provided in the grinding groove 3. A drive shaft 6 is provided inside the feeding pipe 5. A spiral blade 7 is provided on the side of the drive shaft 6 inside the feeding pipe 5. The rotating spiral blade 7 boosts the powder in the feeding pipe 5 to slide down.

[0024] The upper end of the drive shaft 6 is connected to a grinding cone 8. The grinding cone 8 is arranged in the grinding groove 3. The powder is between the side of the grinding cone 8 and the grinding layer 4. As the grinding cone 8 rotates, the powder is ground. A guiding cone 9 with a smaller upper part and a larger lower part is provided at the upper end of the grinding cone 9. The guiding cone 9 disperses the material to the edge of the grinding groove 3.

[0025] The upper end of the grinding tank 2 is covered with an end cover 10. A feeding pipe 11 is provided in the middle of the end cover 10. Two electric plug valves 12 are arranged at intervals from bottom to top in the feeding pipe 11. When feeding, first open the upper electric plug valve 12. The material enters the feeding pipe 11 between the two electric plug valves 12. Then close the upper electric plug valve 12. After that, open the lower electric plug valve 12. The material enters the grinding tank 2, reducing the dust generation in the grinding tank 2 during the feeding process.

[0026] A driving mechanism is provided on the frame 1 below the grinding tank 2. The driving mechanism includes a driving motor 13 and a telescopic transmission shaft. The telescopic transmission shaft is a prior art and will not be elaborated here. The telescopic transmission shaft includes an outer tube 14 and an inner tube 15. The outer tube 14 and the inner tube 15 are connected by spline sliding. The outer tube 14 and the inner tube 15 are respectively connected to the drive shaft 6 and the driving motor 13.

[0027] A bearing seat 16 is provided on the outer side of the outer pipe 14. A bearing 20 fixedly connected to the outer pipe 14 is installed inside the bearing seat 16. A plurality of telescopic mechanisms 17 are vertically arranged on the bearing seat 16. The telescopic mechanisms 17 are hydraulic telescopic rods. The lower ends of the telescopic mechanisms 17 are fixedly connected to the frame 1. The telescopic movement of the telescopic mechanisms 17 drives the bearing seat 16 to move up and down, thereby driving the drive shaft 6 and the grinding cone 8 to move up and down, changing the gap between the grinding cone 8 and the grinding groove 3, so as to adapt to the grinding requirements of powders with different particle sizes. A baffle plate 18 is provided on the outer pipe above the bearing seat 16, and a retaining wall 19 is provided below the baffle plate 18. The baffle plate 18 and the retaining wall 19 prevent the powder from contacting the telescopic transmission shaft.

[0028] The specific working process is as follows: Start the driving mechanism, control the telescopic mechanism 17 to adjust the gap between the grinding layer 4 and the grinding cone 8. After the adjustment is completed, start the driving mechanism. The driving mechanism drives the grinding cone 8 to rotate. First, open the upper plug valve, and the material enters the feed pipe 11 between the two electric plug valves 12. Then close the upper electric plug valve 12, and then open the lower electric plug valve 12. The material enters the grinding tank 2, is guided by the guiding cone 9 and then enters the gap between the grinding cone 8 and the grinding layer 4. The powder after grinding by the grinding cone 8 and the grinding layer 4 is discharged from the blanking pipe 5 out of the grinding tank 2.

[0029] The above embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art on the basis of the present invention belong to the scope of protection required by the present invention.

Claims

1. A powder grinding device for producing drilling aids, characterized in that: It includes a frame, on which a grinding jar is arranged, a grinding groove is arranged inside the grinding jar, a grinding layer is laid inside the grinding groove, a feeding pipe is arranged in the grinding groove extending to the outside of the grinding jar, a driving shaft is arranged in the feeding pipe, a grinding cone is connected to the upper end of the driving shaft, a driving mechanism is arranged on the frame below the grinding jar, the driving mechanism includes a driving motor and a telescopic transmission shaft, the telescopic transmission shaft includes an outer tube and an inner tube, the outer tube and the inner tube are respectively connected to the driving shaft and the driving motor, a bearing seat is arranged outside the outer tube, a bearing fixedly connected to the outer tube is installed in the bearing seat, a plurality of telescopic mechanisms are vertically arranged on the bearing seat, and the lower end of the telescopic mechanism is fixedly connected to the frame.

2. A powder grinding device for producing drilling aids according to claim 1, characterized in that: The upper end cover of the grinding jar is provided with an end cover, a feed pipe is provided in the middle of the end cover, and two electric gate valves are provided on the feed pipe at intervals from bottom to top.

3. A powder fine grinding device for producing drilling aids according to claim 1, characterized in that: The upper end of the grinding cone is provided with a guide cone which is smaller at the top and larger at the bottom.

4. A powder fine grinding device for producing drilling aids according to claim 1, characterized in that: The side surface of the driving shaft in the discharge pipe is provided with spiral blades.

5. The powder fine grinding device for producing drilling aids according to claim 1, characterized in that: The telescopic mechanism is a hydraulic telescopic rod.

6. A powder fine grinding device for producing drilling aids according to claim 1, characterized in that: A material blocking plate is arranged on the outer tube above the bearing seat.

7. A powder fine grinding device for producing drilling aids according to claim 6, characterized in that: A barrier is arranged below the material blocking plate.

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