The shell of the shot blasting chamber of the catenary type shot blasting machine is solid, durable and rigid. The interior of the chamber is protected by 10mm thick rolled Mn13 high wear-resistant protective plate, with good protection and long service life, more than 18000 hours; Cleaning room the cleaning room is a welded structure of steel plate and section steel, with a solid and durable shell, good rigidity, wide space, and lined with 6 mm cast chromium guard plate; The sealing chamber is of steel plate welded structure. The chamber shell is solid and durable with good rigidity. It is sealed with multi-layer wear-resistant rubber curtain. The bottom of the inlet and outlet is equipped with high elastic nylon brush row and 6 mm wear-resistant rubber plate, which is convenient for disassembly, replacement and maintenance. The sealing effect is good, and it can effectively prevent bullets from flying out and dust from escaping。

The centrifugal linear blade shot blasting machine (American Penn company shot blasting technology) is adopted, which has the advantages of high shot blasting efficiency (shot blasting ratio can reach 16kg/min · kW), fast speed (up to 83 M / s), good shot blasting effect (shot blasting belt is relatively wide and centralized, shot blasting is uniform), high safety (installation of limited device, equipment can not be started during maintenance), low noise, and has been tested by the dynamic balance instrument, The balance torque is between 12 ~ 15N · mm (national standard 18.6n · mm); The dovetail groove of the unit disc impeller is processed by precision milling machine, and the material is carburized and quenched; The blade is made of high chromium special wear-resistant cast iron. The surface hardness after heat treatment is hrc60-65, which has high wear resistance and service life. The weight difference of each shot blaster blade is ≤ 5g; The directional sleeve adopts a fully enclosed dial, which can easily adjust the ejection angle and direction. It is made of high chromium special wear-resistant cast iron. The surface hardness after heat treatment is hrc60-65, and the service life is long.

The workpiece conveying system of the catenary type shot blasting machine is composed of the input catenary, the catenary of the shot blasting cleaning room, the catenary of the purging sealing room and the output catenary. It is driven by sections. Each section of the drive can operate independently or simultaneously and completely synchronously. The drive motor adopts stepless frequency conversion speed regulation. The drive torque will not be reduced due to the reduction of the speed. The conveying speed is 0.5-3 M / min; 16Mn steel is used for input, output, roll sweeping and sealing chamber catenary roller shaft, and the chain adopts die forged chain, which is closely coordinated with non-standard equipment during installation; Variable frequency speed regulation, motor 4kwx2, line speed 0.5-3m/min, adjustable, with mechanical and electrical overload protection, safe and reliable

Jiutong adopts the method of one-stage rolling and one-stage purging to clean the steel plate. High elasticity and Φ 3mm composite nylon material, moderate hardness, large elasticity, good wear resistance, and service life of more than 3 years; The bristles are fixed on the semi nylon block, and the semi nylon is fixed on the roller brush shaft (welded by the high-quality carbon steel seamless steel pipe and the quenched and tempered shaft head) with bolts. The bristles are firmly fixed, and there is no loss of bristles in the work. The brush is fast, the structure is advanced, and the replacement is convenient; The whole spiral shaft of the shot receiving screw is processed as a whole after welding, and the spiral blade is made of 16Mn material. The pitch and outer circle dimensions are very accurate, which improves the service life of the screw. The roller brush and the shot receiving screw are driven by shaft mounted reducer, with light structure and stable and reliable operation. A small amount of bullets remain on the workpiece after rolling, and a blowpipe is set behind the rolling brush. The residual bullets move under the rolling brush under the blowing of the blowpipe, and then are swept into the shot receiving screw by the rolling brush. The high-pressure gas of the blowing pipe is supplied by a special high-pressure fan, which is installed in the pit below the blowing room. The air outlet and the blowing pipe are connected by hoses.

The pneumatic shot gate of the catenary shot blasting machine is a device that controls the shot blasting volume by controlling the cylinder switch. It has high reliability and avoids the motor burnout, shot blasting device blockage, shot empty throwing and injury caused by the lax closing of the ordinary shot control valve, reaching the international advanced level. The required shot blasting quantity can be obtained by adjusting the bolts or valve plates on the shot controller.