Air cylinder bag shaking structure of jet mill

Abstract

An air cylinder bag shaking structure of a jet mill comprises an air cylinder assembly, a sliding sleeve, a connecting shaft, a bag shaking frame and a bag shaking frame connecting pipe, the bag shaking frame comprises a center pipe, the air cylinder assembly comprises a piston rod, the sliding sleeve and the bag shaking frame connecting pipe, and the center pipe can slide up and down outside the air cylinder assembly; a first hole is formed in the bottom face of the bag shaking frame connecting pipe, the first end of the connecting shaft is provided with external threads and a threaded hole, and the second end of the connecting shaft is provided with a boss and penetrates through the first hole to be in threaded connection with the piston rod. The diameter of the boss is larger than or equal to the outer diameter of the spring, the diameter of the first open hole is larger than the outer diameter of the spring sleeve and smaller than the outer diameter of the spring, a nut is arranged at the first end of the connecting shaft, located in the bag shaking frame connecting pipe and connected with the bag shaking frame connecting pipe in an abutting mode, and one end of the spring is connected with the bag shaking frame connecting pipe in an abutting mode. And the other end is abutted against the boss. By designing a connecting structure of the bag shaking frame connecting pipe and the air cylinder, the problem that the filter bag is easy to scratch is avoided.

Description

Technical Field

[0001] The utility model relates to a cylinder bag shaking structure of an air flow pulverizer. Background Art

[0002] The gas pulverizer uses high-speed airflow to make particles impact, collide, and shear each other to achieve ultra-fine grinding. The crushed materials need to be collected by a collection device, which generally uses a filter bag for filtering. The materials will accumulate on the filter bag, and the filter bag needs to be dusted. Cylinder shaking bag dust removal is a common dust removal method. The existing cylinder shaking bag structure has the problem of easily scratching the filter bag. Utility Model Content

[0003] In view of the deficiencies of the existing technology, the utility model provides a cylinder bag shaking structure of an air flow pulverizer.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a cylinder bag shaking structure of an air flow pulverizer, including a cylinder assembly, a sliding sleeve, a connecting shaft, a bag shaking frame, and a bag shaking frame connecting pipe, wherein the bag shaking frame includes a central pipe;

[0005] The cylinder assembly includes a piston rod, the outer diameter of the cylinder assembly is covered with a sliding sleeve, the outer diameter of the sliding sleeve is covered with a bag shaking frame connecting pipe, the outer diameter of the bag shaking frame connecting pipe is covered with a central tube of the bag shaking frame, the sliding sleeve, the bag shaking frame connecting pipe, and the central tube of the bag shaking frame are fixedly connected by fasteners, and the sliding sleeve, the bag shaking frame connecting pipe, and the central tube of the bag shaking frame can slide up and down together outside the cylinder assembly;

[0006] A first opening is provided on the bottom surface of the bag shaking frame connecting tube, an external thread and a threaded hole are provided at the first end of the connecting shaft, and a boss is provided at the second end. The first end of the connecting shaft passes through the first opening and is threadedly connected to the piston rod through the threaded hole; a spring sleeve is provided outside the connecting shaft, a spring is provided on the outer wall of the spring sleeve, the boss diameter is greater than or equal to the outer diameter of the spring, the first opening diameter is greater than the outer diameter of the spring sleeve and smaller than the outer diameter of the spring, a nut is provided on the first end of the connecting shaft, the nut is located in the bag shaking frame connecting tube and abuts against the bottom of the bag shaking frame connecting tube, one end of the spring abuts against the bag shaking frame connecting tube, and the other end abuts against the boss.

[0007] The bag shaking frame also includes at least one circular ring coaxial with the central tube, and the circular ring is provided with a plurality of hanging holes, and the hanging holes are connected with hooks.

[0008] The circular ring and the central tube are fixedly connected via a plurality of connecting plates.

[0009] The cross section of the circular ring of the bag shaking frame is L-shaped, and the hanging hole is arranged on a surface perpendicular to the axial direction of the circular ring and the central tube.

[0010] The L-shaped corners of the circular ring are rounded.

[0011] The cylinder assembly also includes a cylinder body and a cylinder connecting pipe. A second opening is provided on the bottom surface of the cylinder connecting pipe. The cylinder body and the cylinder connecting pipe are fixedly connected, and the piston rod passes through the second opening.

[0012] A quick-release joint is arranged at the upper end of the cylinder connecting pipe.

[0013] The bag shaking frame connecting pipe is provided with a plurality of operation holes.

[0014] The sliding sleeve and the spring sleeve are made of polytetrafluoroethylene.

[0015] Beneficial effects of the utility model: The utility model avoids the problem of filter bags being easily scratched by designing the connection structure of the bag shaking frame connecting pipe and the cylinder. The L-shaped circular ring bag shaking frame increases the contact area between the bag shaking frame and the filter bag when beating the filter bag, thereby improving the efficiency of bag shaking. The utility model also has the characteristics of simple structure, convenient processing and easy assembly, and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0018] Figure 3 for Figure 2 A local enlarged view of point A;

[0019] Figure 4 It is a schematic diagram of the use state of the utility model. DETAILED DESCRIPTION

[0020] like Figure 1-Figure 4 As shown, a cylinder bag shaking structure of an air flow pulverizer includes a cylinder assembly 1, a sliding sleeve 5, a connecting shaft 2, a bag shaking frame 3, and a bag shaking frame connecting pipe 6, wherein the bag shaking frame 3 includes a central pipe 301;

[0021] The cylinder assembly 1 includes a piston rod 101, the outer diameter of the cylinder assembly 1 is sleeved with a sliding sleeve 5, the outer diameter of the sliding sleeve 5 is sleeved with a bag shaking frame connecting pipe 6, the outer diameter of the bag shaking frame connecting pipe 6 is sleeved with a central tube 301 of the bag shaking frame 3, the sliding sleeve 5, the bag shaking frame connecting pipe 6, and the central tube 301 of the bag shaking frame 3 are fixedly connected by a fastener 11, and the sliding sleeve 5, the bag shaking frame connecting pipe 6, and the central tube 301 of the bag shaking frame 3 can slide up and down together outside the cylinder assembly 1;

[0022] A first opening 601 is provided on the bottom surface of the bag shaking frame connecting tube 6, the first end of the connecting shaft 2 is provided with an external thread and a threaded hole, and the second end is provided with a boss. The first end of the connecting shaft 2 passes through the first opening 601 and is threadedly connected to the piston rod 101 through the threaded hole; a spring sleeve 9 is provided on the outer sleeve of the connecting shaft 2, and a spring 8 is provided on the outer wall of the spring sleeve 9. The diameter of the boss is greater than or equal to the outer diameter of the spring 8. The diameter of the first opening 601 is greater than the outer diameter of the spring sleeve 9 and smaller than the outer diameter of the spring 8. A nut 7 is provided on the first end of the connecting shaft 2, and the nut 7 is located in the bag shaking frame connecting tube 6 and abuts against the bottom of the bag shaking frame connecting tube 6. One end of the spring 8 abuts against the bag shaking frame connecting tube 6, and the other end abuts against the boss.

[0023] The bag shaking frame 3 also includes at least one circular ring 302 coaxial with the central tube 301, and the circular ring 302 is provided with a plurality of hanging holes, and the hanging holes are connected with hooks 4. The circular ring 302 and the central tube 301 are fixedly connected by a plurality of connecting plates 303. The circular ring 302 of the bag shaking frame 3 is L-shaped in cross section, and the hanging holes are provided on a surface perpendicular to the axial direction of the circular ring 302 and the central tube 301. The L-shaped corners of the circular ring 302 are rounded. The rounded corners are provided to prevent the corners from scratching the filter bag 12.

[0024] The cylinder assembly 1 further comprises a cylinder body 102 and a cylinder connecting pipe 103. The bottom surface of the cylinder connecting pipe 103 is provided with a second opening 104. The cylinder body 102 and the cylinder connecting pipe 103 are fixedly connected, and the piston rod 101 passes through the second opening 104. The upper end of the cylinder connecting pipe 103 is provided with a quick-release connector 105.

[0025] like Figure 4 As shown, the cylinder bag shaking structure can be quickly disassembled and assembled through the quick-release connector 105 of the cylinder connecting pipe 103 and the quick-release connector on the collecting device 13. The hook 4 is used to connect the filter bag 12. During operation, the up and down movement of the piston rod 101 of the cylinder drives the bag shaking frame connecting pipe 6 and the bag shaking frame 3 to move up and down together, and the bag shaking frame 3 drives the filter bag 12 to shake so that the material adsorbed on the filter bag 12 is shaken off. Compared with the existing bag shaking frame, the L-shaped ring 302 of the bag shaking frame 3 has a larger contact area when beating the filter bag 12, thereby improving the efficiency of the bag shaking. The spring 8 has a shock-absorbing effect on the movement of the bag shaking frame connecting pipe 6.

[0026] The bag shaking frame connecting pipe 6 is provided with a plurality of operating holes 602. The main function of the operating holes 602 is to facilitate assembly and disassembly.

[0027] The sliding sleeve 5 and the spring sleeve 9 are made of polytetrafluoroethylene. Polytetrafluoroethylene is resistant to acid, alkali, various organic solvents, and high temperature. It has an extremely low friction coefficient and can lubricate the sliding. It also avoids direct contact and friction between the spring 8 and the connecting shaft 2, the shaking bag frame connecting pipe 6, and the cylinder connecting pipe 103, thereby preventing the generation of electric sparks during operation.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, simple changes and substitutions by ordinary technicians in this field are within the protection scope of the utility model.

Claims

1. A cylinder bag shaking structure for a jet mill. It is characterized in that It includes a cylinder assembly, a sliding sleeve, a connecting shaft, a bag shaking frame, and a bag shaking frame connecting pipe, wherein the bag shaking frame includes a central pipe; The cylinder assembly includes a piston rod, the outer diameter of the cylinder assembly is covered with a sliding sleeve, the outer diameter of the sliding sleeve is covered with a bag shaking frame connecting pipe, the outer diameter of the bag shaking frame connecting pipe is covered with a central tube of the bag shaking frame, the sliding sleeve, the bag shaking frame connecting pipe, and the central tube of the bag shaking frame are fixedly connected by fasteners, and the sliding sleeve, the bag shaking frame connecting pipe, and the central tube of the bag shaking frame can slide up and down together outside the cylinder assembly; A first opening is provided on the bottom surface of the bag shaking frame connecting tube, an external thread and a threaded hole are provided at the first end of the connecting shaft, and a boss is provided at the second end. The first end of the connecting shaft passes through the first opening and is threadedly connected to the piston rod through the threaded hole; a spring sleeve is provided outside the connecting shaft, a spring is provided on the outer wall of the spring sleeve, the boss diameter is greater than or equal to the outer diameter of the spring, the first opening diameter is greater than the outer diameter of the spring sleeve and smaller than the outer diameter of the spring, a nut is provided on the first end of the connecting shaft, the nut is located in the bag shaking frame connecting tube and abuts against the bottom of the bag shaking frame connecting tube, one end of the spring abuts against the bag shaking frame connecting tube, and the other end abuts against the boss.

2. A cylinder bag shaking structure for a jet mill as claimed in claim 1, It is characterized in that The bag shaking frame also includes at least one circular ring coaxial with the central tube, and the circular ring is provided with a plurality of hanging holes, and the hanging holes are connected with hooks.

3. A cylinder bag shaking structure for a jet mill as claimed in claim 2, It is characterized in that The circular ring and the central tube are fixedly connected via a plurality of connecting plates.

4. A cylinder bag shaking structure for a jet mill as claimed in claim 3, It is characterized in that The cross section of the circular ring of the bag shaking frame is L-shaped, and the hanging hole is arranged on a surface perpendicular to the axial direction of the circular ring and the central tube.

5. The cylinder bag shaking structure of the air flow mill as claimed in claim 4, It is characterized in that The L-shaped corners of the circular ring are rounded.

6. The cylinder bag shaking structure of a jet mill as claimed in claim 1, It is characterized in that The cylinder assembly also includes a cylinder body and a cylinder connecting pipe. A second opening is provided on the bottom surface of the cylinder connecting pipe. The cylinder body and the cylinder connecting pipe are fixedly connected, and the piston rod passes through the second opening.

7. A cylinder bag shaking structure for a jet mill as claimed in claim 6, It is characterized in that A quick-release joint is arranged at the upper end of the cylinder connecting pipe.

8. The cylinder bag shaking structure of a jet mill as claimed in claim 1, It is characterized in that The bag shaking frame connecting pipe is provided with a plurality of operation holes.

9. The cylinder bag shaking structure of a jet mill according to claim 1, It is characterized in that The sliding sleeve and the spring sleeve are made of polytetrafluoroethylene.

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