CN107626395B - A kind of double taper type sander apparatus of stick pin type - Google Patents

Abstract

The invention relates to a rod-pin type double-cone truncated sand mill device, comprising a frame, a motor is installed on the upper surface of the frame, the output end of the motor is connected to a main shaft part through a transmission part, and one end of the main shaft part is Supported by a bearing base part, the outer end of the bearing base part is mounted with a sanding barrel body part through a sealing device, and a stirrer connected to the main shaft part is installed inside the sanding barrel body part, and the sanding barrel part is installed. Rollers are arranged on both sides of the body part, and a guide rail frame running on the rollers is installed on the upper surface of the frame. The invention has compact and reasonable structure and convenient operation. The barrel body adopts a conical structure and is internally matched with a pin-type agitator to grind materials, so that the grinding effect is good and the work efficiency is high.

Description

A rod-pin type double-cone frustum sand mill device

technical field

The invention relates to the technical field of sanding equipment, in particular to a rod-pin type double-cone frustum-shaped sand mill device.

Background technique

Sand grinding ultra-fine powder has developed rapidly in my country in recent years, and a variety of equipment has been developed, and researchers have done a lot of research on its equipment and processing technology. Among them, the high-energy horizontal stirring sand mill has been widely used in many fields such as paint, chemical industry, medicine and metallurgy. The sand mill mainly achieves the function of fine grinding and dispersing materials through the collision of sand grinding media with each other.

The main problems of existing sand mills are:

1. The sand mill has high energy consumption for stirring and sanding, and the sanding efficiency needs to be improved;

2. The mechanical seal is the most important and valuable component of the horizontal sand mill. The damage to the existing sand mill is largely due to the wear of the mechanical seal during sanding;

3. During sanding, due to the high speed of the spindle, it will cause serious heat and affect the service life of the spindle. Production efficiency is affected;

4. During sanding, the sanding media collide with each other, and the temperature rise of the sanding barrel is high, which cannot meet the temperature requirements of heat-sensitive materials.

SUMMARY OF THE INVENTION

Aiming at the shortcomings of the above-mentioned existing production technology, the applicant provides a rod-pin type double-cone truncated sand mill device, which can effectively solve the above-mentioned problems and greatly improve the working reliability.

The technical scheme adopted in the present invention is as follows:

A rod-pin type double-cone frustum sand mill device includes a frame, a motor is installed on the upper surface of the frame, an output end of the motor is connected to a main shaft part through a transmission part, and one end of the main shaft part passes through a bearing base. The seat part is supported, the outer end of the bearing base part is installed with the sanding barrel part through the sealing device, and the agitator connected with the main shaft part is installed inside the sanding barrel part; The side is provided with rollers, and the upper surface of the rack is provided with a guide rail frame running on the rollers.

Its further technical solution is:

The structure of the sand grinding barrel body is as follows: it includes a left barrel body and a right barrel body which are symmetrically arranged. For the grinding medium separator, the end of the left barrel is connected with the bearing base part, and the end of the right barrel is installed with an end cover.

The structure of the left barrel body and the right barrel body are the same, and the structure is as follows: including the barrel body itself, one end of which is a truncated cone structure, and a cylindrical structure is extended at the end of the truncated cone structure, and the barrel body has inner and outer layers. A cooling water channel is arranged between the two layers. In the cooling water channel, a first plug board and a second plug board are installed in a staggered interval. The first plug board has a through opening at the end of the cylindrical structure, and the second plug board A through port is opened at the end of the truncated cone structure.

The upper part of the left barrel is provided with a left barrel water outlet, and the lower part is provided with a left barrel water inlet.

The upper part of the right barrel is provided with a right barrel water outlet, and the lower part is provided with a right barrel water inlet.

The bottom of the right barrel is also provided with a discharge pipe.

A guide rail frame is installed on the frame, and a roller frame is designed on the outer side of the sand grinding barrel body. The roller is installed on the roller frame, and the roller moves on the guide rail frame.

The structure of the stirrer is as follows: it includes a hollow stirring shaft, one end of the stirring shaft is threadedly connected with the end of the hollow main shaft, and a hollow cylinder is also installed on the outside of the stirring shaft through the spokes, and the hollow cylinder is The outer wall of the body is provided with a plurality of circular holes for passing through the pins, as well as oblong holes for material in and out. Both ends of the shaft are respectively provided with stirring paddles.

The number of stirring paddles is two, and the angle between the blade surface of the stirring paddle and the horizontal direction is 30°.

The structure of the main shaft component is: including a hollow main shaft, one end of the hollow main shaft is installed with a high-speed rotary joint, and the other end is connected with the agitator, the hollow main shaft is supported and installed by the bearing base part, and the hollow main shaft is installed by a mechanical seal In the bearing base part; a cooling water outlet is arranged at the top of the bearing base, and a cooling water inlet is arranged at the bottom; the bearing base part includes the left cylindrical roller bearing and the right deep groove ball bearing, which are fastened with the bearing cover , The left bearing cover and the right bearing cover are provided with sealing grooves, and lip-shaped sealing rings are installed.

The beneficial effects of the present invention are as follows:

The invention has compact and reasonable structure, convenient operation, and adopts a barrel body with a conical structure, which is matched with a pin-type agitator to grind materials, and has good grinding effect and high work efficiency.

The invention adopts the cone-shaped barrel structure and the special agitator design, so that the material in the barrel not only rotates around the barrel wall at a high speed, but also circulates in the barrel. The collision speed of the sanding medium is accelerated, the collision probability is increased, the sanding efficiency is improved, and energy consumption is saved. Due to the function of the cone-shaped barrel, the collision between the sanding medium and the mechanical seal is reduced, the wear and consumption of the mechanical seal is reduced, the use efficiency of the equipment is improved, and the maintenance work is reduced.

The invention adopts the cooling water circulation design of special structure and designs the cooling water circulation system at the bearing base, which ensures the stability of the main shaft under high-speed rotation and prolongs the service life of the equipment. The water circulation system has low processing requirements and meets the needs of industrial production. The invention cooperates with the external chiller and other equipment, and through the calculation of the heat exchange area and the like, the design of the sand mill barrel can meet the temperature requirements of heat-sensitive materials. Widen the application field of sand mill.

Through the special hollow spindle design and the formation of a feeding channel with a high-speed rotary joint, the invention can meet the feeding requirements under high-speed rotation, and cooperate with structures such as a one-way valve to prevent the backflow of the material and prevent the sand grinding medium from flowing out of the feeding port. The present invention designs a separator in the middle of the sand grinding barrel. Under high-speed rotation, the material is thrown onto the barrel wall due to centrifugal action, and is separated by the separator, leaving the sanding medium in the sanding barrel for continued use.

The invention is provided with a roller and a guide rail frame, and the equipment can ensure the stability and safety of the barrel during operation. During the daily maintenance and cleaning of the equipment, the left and right barrels can be moved on the guide rails, which is convenient for disassembly and assembly, avoiding the disadvantage that the equipment parts are too heavy to disassemble and move.

The sand grinding barrel of the invention adopts a number of strict seals, the sand grinding environment is free of pollutants and air, and provides a good sand grinding environment for the sand grinding of easily oxidized materials. The sand grinding barrel is sealed to prevent material leakage and reduce the damage to the workshop. Pollution.

The device of the invention cooperates with the external feeding pump and the stirring device, so that the circulating sand grinding of the material can be realized, and multiple sand mills can also be used in series to further improve the work efficiency.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a front view (full cross-sectional view) of the present invention.

Fig. 3 is the structural schematic diagram of the left barrel body roller frame and the roller installation of the present invention

FIG. 4 is a schematic view of the structure of the agitator of the present invention.

Figure 5 is a front view of the agitator of the present invention.

FIG. 6 is a schematic diagram of the structure of the separator of the material and the sanding medium of the present invention.

FIG. 7 is a schematic structural diagram of the cooling water channel of the left half barrel of the present invention.

Among them: 1. frame; 2. motor; 3. transmission part; 4. main shaft part; 401, high-speed rotary joint; 402, hollow main shaft; 5. bearing base part; 501, cooling water inlet; 502, cooling water Water outlet; 503, mechanical seal; 6, sanding barrel body parts; 601, left barrel body; 602, left barrel body water outlet; 603, separator; 604, right barrel body water outlet; 605, right barrel body; 606, end cover; 607, right barrel water inlet; 608, discharge pipe; 609, left barrel water inlet; 610, roller frame; 7, agitator; 701, stirring shaft; 702, pin bar; 703, long 704, hollow cylinder; 705, stirring paddle; 8, guide rail frame; 801, roller; 901, first plug board; 902, second plug board.

Detailed ways

The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1 , the rod-pin type double-cone truncated sand mill device of this embodiment includes a frame 1 , a motor 2 is installed on the upper surface of the frame 1 , and the output end of the motor 2 is connected to the main shaft member 4 through the transmission member 3 , one end of the main shaft part 4 is supported by the bearing base part 5, the outer end of the bearing base part 5 is installed with the sanding barrel part 6 through the sealing device, and the sanding barrel part 6 is installed inside the sanding barrel part 6 with a stirring device connected to the main shaft part 4. 7, rollers 801 are provided on both sides of the sanding barrel body 6, and a guide rail frame 8 on which the rollers 801 run is mounted on the upper surface of the frame 1.

The structure of the sand grinding barrel part 6 is: including the left barrel 601 and the right barrel 605 arranged symmetrically, the middle connection between the left barrel 601 and the right barrel 605 is fixed by flange connection, and the material and the material are installed in it. For the sanding medium separator 603 , the end of the left barrel 601 is connected to the bearing base part 5 , and the end of the right barrel 605 is installed with an end cover 606 .

The structure of the left barrel 601 and the right barrel 605 are the same, and the structure is: including the barrel itself, one end of which is a truncated cone structure, and a cylindrical structure is extended at the end of the truncated cone structure, and the barrel has inner and outer layers. , a cooling water channel is arranged in the middle of the two layers. In the cooling water channel, a first plug board 901 and a second plug board 902 are installed in a staggered interval. 902 is provided with a through opening at the end of the frustum structure.

The upper portion of the left barrel 601 is provided with a left barrel water outlet 602, and the lower portion is provided with a left barrel water inlet 609.

The upper portion of the right barrel 605 is provided with a right barrel water outlet 604 , and the lower portion is provided with a right barrel water inlet 607 .

The bottom of the right barrel 605 is also provided with a discharge pipe 608 .

A guide rail frame 8 is installed on the frame 1, and a roller frame 610 is designed on the outer side of the sanding barrel body 6. The roller 801 is installed on the roller frame 610, and the roller 801 moves on the guide rail frame 8.

The structure of the stirrer 7 is as follows: it includes a hollow stirring shaft 701, one end of the stirring shaft 701 is threadedly connected with the end of the hollow main shaft 402, and the outside of the stirring shaft 701 is also installed with a hollow cylinder 704 through the spokes, and the hollow cylinder 704 The outer wall of the hollow cylinder 704 is provided with a plurality of circular holes for passing through the pins 702, as well as oblong holes 703 for entering and exiting materials; the outer circumferential surface of the hollow cylinder 704 is provided with a plurality of evenly arranged pin rods 702 at intervals. Both ends of the stirring shaft 701 are respectively provided with stirring paddles 705 .

The number of the stirring paddles 705 is two, and the angle between the blade surface of the stirring paddles 705 and the horizontal direction is 30°.

The structure of the main shaft part 4 is: including a hollow main shaft 402, one end of the hollow main shaft 402 is installed with a high-speed rotary joint 401, and the other end is connected with the agitator 7, the hollow main shaft 402 is supported and installed by the bearing base part 5, and the hollow main shaft 402 is mechanically sealed The component 503 is installed in the bearing base part 5; the top of the bearing base is provided with a cooling water outlet 502, and the bottom is provided with a cooling water inlet 501; the bearing base part 5 includes the left cylindrical roller bearing and the right deep groove ball The bearing is fastened with the bearing cover. The left bearing cover and the right bearing cover are provided with a sealing groove, and a lip-shaped sealing ring is installed.

As shown in FIGS. 1 to 5 , a rod-pin type double-cone frustum sand mill device of the present embodiment includes a frame 1, a motor 2, a transmission part 3, a main shaft part 4, and the main shaft passes through a mechanical seal 503 Placed on the bearing base part 5, the sanding barrel part 6 is connected to the bearing base through the flange, the left and right conical frustum-shaped barrels are connected by flange bolts, and the flange connection is provided with an O-shaped The sealing ring is installed inside the material and sanding medium separator 603 to separate the sanding medium and the material. After the material is separated in the middle part, the material is discharged through the discharge pipe 608; the agitator 7 is connected to the right end of the hollow main shaft 402 through the anti-loosening thread , the other end of the main shaft is connected to the high-speed rotary joint 401 as the material feeding port.

As shown in Figure 1 and Figure 2, the motor 2 drives the hollow main shaft 402 to rotate through the pulley, and the main shaft is connected to the agitator 7 through the anti-loosening thread to prevent loosening during the high-speed rotation of the stirring sand mill. As shown in Figure 2, the left sand grinding barrel of the double-cone truncated sand mill is bolted to the bearing base part 5 through a flange plate, the right barrel 605 and the end cover 606 are connected by a flange plate, and the middle part of the flange plate at both ends is connected by a flange plate. All are equipped with a sealing ring to ensure the sealing of the sanding barrel.

As shown in Fig. 2 and Fig. 5, the left and right two conical frustum-shaped barrels provide a sanding cavity. The material enters the hollow main shaft 402 through the high-speed rotary joint 401, and then enters the stirring inside of the agitator 7 rod pins. The oblong hole 703 distributed between the rod pins of the agitator 7 enters between the agitator 7 and the inner wall of the barrel, and is stirred and sanded again, and through the conical frustum-shaped barrel part at both ends, through the inclined two-blade stirring paddle 705 The conveying is returned to the inside of the rod-pin stirring, circulating stirring, and enhancing the sand grinding efficiency.

As shown in Figure 2 and Figure 4, the materials that meet the requirements of sanding particle size are separated from the medium separator 603 by the material in the middle of the barrel. The separator 603 is provided with a spiral fine groove, and the width of the fine groove is smaller than the diameter of the sanding medium. The grinding media will remain in the barrel for continued use. The material is discharged through the discharge pipe 608 .

As shown in Figure 5, the middle part of the agitator 7 is of the inner and outer rod pin type, four rod pins are distributed in a circle, the ratio of the rod pin diameter to the length is between 1:1.5 and 1:2, and a long strip is designed between the rod pins. The oblique two-blade stirring paddle is distributed at both ends of the rod-pin stirrer 7. The length and width ratio of the two-blade stirring paddle is 2:1, and the angle between the blade surface of the stirring paddle and the horizontal direction is 30°. The inclined two-blade stirring paddle and the rod-pin stirring paddle are connected by the spokes, which is convenient for material circulation.

As shown in Figure 6, a plug-in cooling water channel is set between the inner and outer layers of the left and right truncated cone-shaped barrels, and the cooling water enters through the water inlet. The plate accelerates the circulating flow rate of the cooling water, and the cooling water channel strengthens the circulation heat exchange efficiency. Finally, it exits through the left barrel water outlet 602 and the right barrel water outlet 604, and enters the cooling water machine to circulate and cool the equipment and reduce the temperature of the sand grinding barrel. Meet the sanding requirements of heat-sensitive materials. Similarly, the cooling water of the bearing base enters between the bearing housing cylinders through the cooling water inlet 501, the cooling water flows layer by layer along the channel of the insert plate, and flows out through the cooling water outlet 502 to cool the main shaft and the bearing. Extend equipment life. The above description is an explanation of the present invention, not a limitation of the present invention. For the limited scope of the present invention, refer to the claims, and any form of modification can be made within the protection scope of the present invention.

Claims (8)

1. a kind of double taper type sander apparatus of stick pin type, it is characterised in that: including rack (1), the upper surface of the rack (1) It is equipped with motor (2), the output end of the motor (2) passes through transmission parts (3) connection spindle unit (4), the spindle unit (4) one end is supported by bearing base component (5), and sand is installed by sealing device in the outer end of the bearing base component (5) Grinding barrel body component (6), the inside that staving component (6) are sanded are equipped with the blender (7) being connected with spindle unit (4), institute It states sand milling staving component (6) two sides to be provided with idler wheel (801), the upper surface of rack (1) is equipped with the guide rail of idler wheel (801) operation Frame (8)；The structure that staving component (6) are sanded are as follows: described including symmetrically arranged left bucket body (601) and right bucket body (605) Left bucket body (601) and right bucket body (605) intermediate connections are connected and fixed by flange, and are equipped with material inside it and are sanded Dielectric separator (603), left bucket body (601) end couple with bearing base component (5), the terminal mounting ends of right bucket body (605) It covers (606)；The left bucket body (601) is identical with the structure of right bucket body (605), structure are as follows: including staving itself, one end at Truncated cone structure is extended with cylindrical structure in the end of truncated cone structure, and staving has two layers inside and outside, setting among two layers There is cooling water channel, in cooling water channel, interleaved is equipped with the first plate (901) and the second plate (902), and described first inserts Plate (901) is provided with port at cylindrical structure end, and second plate (902) is provided with port at circular cone structure end.

2. the double taper type sander apparatus of a kind of stick pin type as described in claim 1, it is characterised in that: the left bucket body (601) top is provided with left bucket body water outlet (602), and lower part is provided with left bucket body water inlet (609).

3. the double taper type sander apparatus of a kind of stick pin type as described in claim 1, it is characterised in that: the right bucket body (605) top is provided with right bucket body water outlet (604), and lower part is provided with right bucket body water inlet (607).

4. the double taper type sander apparatus of a kind of stick pin type as described in claim 1, it is characterised in that: the right bucket body (605) bottom is additionally provided with discharge nozzle (608).

5. the double taper type sander apparatus of a kind of stick pin type as described in claim 1, it is characterised in that: on the rack (1) It is equipped with guide rail bracket (8), there is turning rolls (610) design on the outside of the sand milling staving component (6), idler wheel (801) is mounted on idler wheel On frame (610), idler wheel (801) moves on guide rail bracket (8).

6. the double taper type sander apparatus of a kind of stick pin type as described in claim 1, it is characterised in that: the blender (7) Structure are as follows: including a hollow agitating shaft (701), one end of the agitating shaft (701) and the end of hollow main shaft (402) It is threadedly coupled, the outside of the agitating shaft (701) also passes through spoke and is equipped with hollow cylinder (704), the hollow cylinder (704) the oblong hole (703) that multiple circular holes and material for across pin stick (702) pass in and out, institute are provided in outside wall surface The internal and external circumference face interval for stating hollow cylinder (704) is provided with multiple evenly distributed pin sticks (702)；Positioned at agitating shaft (701) two ends are separately installed with agitating paddle (705).

7. the double taper type sander apparatus of a kind of stick pin type as claimed in claim 6, it is characterised in that: agitating paddle (705) Number is two panels, and the angle of agitating paddle (705) blade face and horizontal direction is 30 °.

8. the double taper type sander apparatus of a kind of stick pin type as described in claim 1, it is characterised in that: spindle unit (4) Structure are as follows: including hollow main shaft (402), one end of the hollow main shaft (402) is equipped with high-speed joint (401), another End is connect with blender (7), and the hollow main shaft (402) passes through bearing base component (5) support installation, the hollow main shaft (402) it is mounted in bearing base component (5) by mechanical sealing member (503)；Cooling water is provided at the top of bearing base to go out Cooling water intake (501) are arranged in the mouth of a river (502), bottom；It include left side cylinder roller bearing in bearing base component (5), and The right deep groove ball bearing, is fastened with bearing cap, and seal groove is arranged in left bearing lid and right bearing lid, installs lip-type packing, sealing Slot is opened in bearing cap and main shaft contact site, and lip-type packing is installed at middle part.