CN213731186U

CN213731186U - Shot blasting machine for inner wall of rectangular pipe

Info

Publication number: CN213731186U
Application number: CN202022249534.1U
Authority: CN
Inventors: 顾明开; 唐潋
Original assignee: Changsha Granken Machinery Co ltd
Current assignee: Changsha Granken Machinery Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-07-20
Anticipated expiration: 2030-10-12

Abstract

The utility model provides a rectangular pipe inner wall shot-blasting machine. Rectangular pipe inner wall peening machine includes conveying system, sand blasting system, circulation system, dust pelletizing system, sand blasting system is including the sandblast jar, sandblast hose, the spray gun that connect gradually, and locate conveying system's sandblast room, locate spray gun support in the sandblast room, the spray gun is located spray gun support, the spray gun includes the nozzle, becomes the looks ware, the nozzle is the cylinder structure, and its one end is connected the sandblast hose, the other end is connected through one or many connecting rods phase change ware, the phase change ware is conical structure, its most advanced orientation the nozzle inside, with the coaxial setting of nozzle and keep the clearance between the two. The utility model provides a rectangular pipe inner wall peening machine has solved the peening equipment of prior art can't be used for clearing up the rectangular pipe inner wall to the technical problem of mode inefficiency, effect difference etc. of current artifical peening clearance.

Description

Shot blasting machine for inner wall of rectangular pipe

Technical Field

The utility model relates to a shot-blasting machine field, concretely relates to rectangular pipe inner wall shot-blasting machine.

Background

The shot-blasting machine is a device which utilizes the impact of shot flow moving at high speed on the metal surface to generate a plastic cyclic strain layer on the surface, thereby leading the microstructure of the layer to change favorably and leading the surface layer to introduce a residual stress field, wherein the microstructure and the residual compressive stress field of the surface layer are two strengthening factors for improving the fatigue fracture and the stress corrosion fracture resistance of the metal part, and the reliability and the durability of the part are improved as a result. Meanwhile, the shot blasting machine can also remove surface oxide skin and improve the paint adhesion. Because the existing shot blasting equipment is thrown from the periphery to the middle, the existing shot blasting equipment cannot be used for cleaning the interior of the pipe. Especially for cleaning the inner wall of the rectangular tube, the spray gun is completely inserted into the rectangular tube by hands to carry out shot blasting cleaning. The cleaning difficulty is very high, the situation inside the rectangular tube can not be observed by naked eyes, and the cleaning range can be judged only by feeling, so that a cleaning blind area exists. The workpiece cleaning machine has the advantages that manual repeated cleaning is possibly needed, the efficiency is extremely low, the working strength of workers is high, the cleaning effect is difficult to control, and only short workpieces can be cleaned.

SUMMERY OF THE UTILITY MODEL

For solving prior art's peening equipment can't be used for clearing up the rectangular pipe inner wall to the technical problem of mode inefficiency, effect difference etc. of current artifical peening clearance, the utility model provides a solve the rectangular pipe inner wall peening machine of above-mentioned problem.

The utility model provides a rectangular pipe inner wall peening machine, includes conveying system, peening system, circulation system, dust pelletizing system, the peening system is including the peening jar, peening hose, the spray gun that connect gradually, and locate conveying system's peening room, locate the spray gun support in the peening room, the spray gun is located the spray gun support, the spray gun includes nozzle, phase change ware, the nozzle is the cylinder structure, and its one end is connected the peening hose, and the other end is connected through one or many connecting rods the phase change ware, the phase change ware is conical structure, its most advanced orientation the nozzle inside, with the coaxial setting of nozzle, and keep the clearance between the two.

In a preferred embodiment of the present invention, the conveying system comprises a rail frame with a long strip shape, and a conveying rail arranged along the rail frame. The shot blasting chamber is arranged on the rail frame, the conveying rail penetrates through the shot blasting chamber, and the spray gun support is arranged in the shot blasting chamber and vertically above the conveying rail.

In a preferred embodiment of the shot blasting machine for the inner wall of the rectangular tube provided by the utility model, the circulating system comprises a recovery spiral, a hoisting machine and a separator, the recovery spiral is arranged vertically below the track frame and the shot blasting chamber, one end of the recovery spiral is communicated with the shot blasting chamber, and the other end of the recovery spiral is communicated with a feed inlet of the hoisting machine; the discharge opening of the hoister is communicated with the feed inlet of the separator, and the discharge opening of the separator is communicated with the feed inlet of the shot blasting tank.

In a preferred embodiment of the shot-blasting machine, the dust-removing system comprises a dust-removing pipeline, a cyclone dust collector and a pulse dust collector, and the shot-blasting chamber is communicated with the cyclone dust collector and the pulse dust collector through the dust-removing pipeline.

Compared with the prior art, the utility model provides a rectangular pipe inner wall peening machine has realized the automatic clearance of tubular work piece inner wall, has realized the non-blind area clearance of work piece inner wall, and disposable clearance effect reaches Sa2.5 grades, promotes the quality of product by a wide margin. The workpiece with any length can be cleaned, the production efficiency is greatly improved, and the working strength of workers is reduced.

Drawings

FIG. 1 is a schematic structural view of a shot-blasting machine for the inner wall of a rectangular tube;

FIG. 2 is a schematic view showing the structure of a shot-blasting chamber in a rectangular pipe inner wall shot-blasting machine.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 and 2, the structure of the shot-blasting machine with rectangular inner wall and the structure of the shot-blasting chamber 7 are shown in the present invention. The lines scattered all around at the inverter 19 in fig. 2 are for showing the shot direction.

The shot blasting machine for the inner wall of the rectangular pipe comprises a conveying system, a shot blasting system, a circulating system and a dust removing system. The conveying system comprises a track frame 3 and a conveying track 2; the shot blasting system comprises a shot blasting tank 12, a shot blasting hose 14, a shot blasting steel pipe 16, a spray gun 17, a spray gun bracket 15 and a shot blasting chamber 7; the circulating system comprises a recovery screw 10, a lifter 11 and a separator 13; the dust removal system comprises a dust removal pipeline 8, a cyclone dust collector 9, a pulse dust collector 5 and an induced draft fan 6.

The track frame 3 is a strip-shaped support, and the conveying track 2 is arranged along the length direction of the track frame. The blast chamber 7 is provided at the left end of the rail frame 3, and the conveying rail 2 extends into the blast chamber 7 and is attached to the bottom surface of the blast chamber 7. The lance holder 15 is provided in the blasting chamber 7 above the conveying rail 2, only the left end of the lance holder 15 is connected and fixed to the blasting chamber 7, and the blasting steel pipe 16 passes through the center.

The left end of the shot blasting chamber 7 is sealed, and only two openings for the spray gun 17 to pass through are reserved; the right end is provided with a trap door 4 which can be opened up and down; the top of the dust removing pipe is open and connected with the dust removing pipe 8, and the bottom of the dust removing pipe is open and is arranged to be conical and connected with a feed inlet of the recovery screw 10.

The blasting tank 12 is arranged on the ground and beside the blasting chamber 7, and the sand outlet thereof is connected with the blasting gun 17 arranged on the blasting gun bracket 15 through the blasting steel pipe 16 by the blasting hose 14. The spray gun 17 comprises a cylindrical nozzle 18 and a conical phase converter 19, one section of the nozzle 18 is connected with the shot blasting hose 14, a cross-shaped support frame is arranged inside the other end, and a connecting rod extending outwards along the axis of the nozzle 18 and connected with the phase converter 19 is arranged at the central position of the cross-shaped support frame. The tip of the phase converter 19 faces the inside of the nozzle 18, is disposed coaxially with the nozzle 18, and maintains a gap therebetween.

The separator 13 is provided on the top of the blasting tank 12, and receives the material transported from the elevator 11 on the top, and the separated impurities are discharged from the side, and the sand and the shot enter the blasting tank 12 on the bottom. The discharge opening of the elevator 11 is aligned with the feed opening at the top of the separator 13, and the feed opening at the bottom receives the material conveyed by the recovery screw 10.

And one end of the dust removal pipeline 8 is connected with the shot blasting chamber 7, and the other end of the dust removal pipeline is sequentially connected with the cyclone dust collector 9, the pulse dust collector 5 and the induced draft fan 6.

In specific implementation, a workpiece 1 (a rectangular tube) is placed on the conveying track 2 and is conveyed to move in the shot blasting chamber 7 at the left end. Meanwhile, the induced draft fan 6, the recovery screw 10 and the elevator 11 are started, and the trapdoor 4 moves upwards.

The workpiece 1 continues to move to its right end aligned with the right end of the spray gun 17, the trap door 4 moves down and closes, and the spray gun 17 starts to spray sand. The sand shots are sprayed out from the nozzle 18 under the action of high-pressure air, scattered around under the action of the phase converter 19 and hit around the inner wall of the workpiece 1. Meanwhile, the conveying track 2 moves reversely to drive the workpiece 1 to move rightwards, so that the inner wall of the workpiece 1 is completely covered.

After the workpiece 1 completely separated from the shot region, the shot blasting is stopped. The trap door 4 moves upwards to open, and the conveying track 2 continues to drive the workpiece 1 to exit to the initial position.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes made by the present specification can be changed, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. The utility model provides a rectangular pipe inner wall peening machine, includes conveying system, peening system, circulation system, dust pelletizing system, the peening system is including the peening jar, peening hose, the spray gun that connect gradually, and locate conveying system's peening room, locate spray gun support in the peening room, the spray gun is located spray gun support, its characterized in that: the spray gun comprises a nozzle and a phase converter, wherein the nozzle is of a cylindrical structure, one end of the nozzle is connected with the shot blasting hose, the other end of the nozzle is connected with the phase converter through one or more connecting rods, the phase converter is of a conical structure, the tip of the phase converter faces the inside of the nozzle, is arranged coaxially with the nozzle, and keeps a gap between the nozzle and the phase converter.

2. The rectangular tube inner wall shot-blasting machine according to claim 1, wherein: the conveying system comprises an elongated track frame and a conveying track arranged along the track frame.

3. The rectangular tube inner wall shot-blasting machine according to claim 2, characterized in that: the shot blasting chamber is arranged on the rail frame, the conveying rail penetrates through the shot blasting chamber, and the spray gun support is arranged in the shot blasting chamber and vertically above the conveying rail.

4. The rectangular tube inner wall shot-blasting machine according to claim 2 or 3, wherein: the recycling system comprises a recycling spiral, a lifter and a separator, the recycling spiral is arranged vertically below the track frame and the shot blasting chamber, one end of the recycling spiral is communicated with the shot blasting chamber, and the other end of the recycling spiral is communicated with a feeding hole of the lifter; the discharge opening of the hoister is communicated with the feed inlet of the separator, and the discharge opening of the separator is communicated with the feed inlet of the shot blasting tank.

5. The rectangular tube inner wall shot-blasting machine according to claim 1, wherein: the dust removal system comprises a dust removal pipeline, a cyclone dust collector and a pulse dust collector, and the shot blasting chamber, the cyclone dust collector and the pulse dust collector are sequentially communicated through the dust removal pipeline.