WO2023164999A1

WO2023164999A1 - Shot-blasting treatment device for star wheel

Info

Publication number: WO2023164999A1
Application number: PCT/CN2022/087619
Authority: WO
Inventors: 许小龙; 陈鸣; 焦云志; 黄斌; 李强
Original assignee: 玉环普天单向器有限公司
Priority date: 2022-03-02
Filing date: 2022-04-19
Publication date: 2023-09-07
Also published as: CN114683181A

Abstract

The present invention relates to the field of machining of mechanical parts. In particular, disclosed is a shot-blasting treatment device for a star wheel. The shot-blasting treatment device comprises a plurality of shots, a supporting frame and a shot-blasting unit. The shot-blasting unit comprises a shot-conveying portion, a first shot-blasting pipe, and a first shot-blasting device arranged on the first shot-blasting pipe. The first shot-blasting pipe is provided with a first shot-blasting opening in communication with the first shot-blasting device, the first shot-blasting pipe is horizontally arranged and is fixedly connected to the supporting frame, the first shot-blasting pipe is in communication with the shot-conveying portion, and several protruding blocks capable of abutting against an inner wall of a star wheel are fixedly mounted on an outer wall of the first shot-blasting pipe, the maximum horizontal distance between every two adjacent protruding blocks being smaller than or equal to the axial length of the star wheel. According to this solution, the first shot-blasting device blasts the shots, the shots are blasted out through the first shot-blasting opening, and the shots hit an inner wall of a star wheel, such that a shot-blasting treatment on the inner wall of the star wheel is achieved.

Description

A shot blasting treatment device for a star wheel

technical field

The invention relates to the technical field of mechanical parts processing, in particular to a shot blasting treatment device for a star wheel.

Background technique

Shot blasting treatment is divided into shot blasting cleaning and shot blasting strengthening. Shot blasting is to use high-speed moving projectiles to continuously impact the surface of the strengthened workpiece, so that the surface layer of the workpiece is modified under the impact of projectiles, or The residual compressive stress on the surface of the workpiece can be made uniform, and the roughness on the surface of the workpiece can also be changed, thereby improving the fatigue fracture resistance of the workpiece, preventing fatigue failure, plastic deformation and brittle fracture, and improving the fatigue life.

Conventional shot blasting equipment generally controls the impact direction of the projectile by controlling the direction of the shot blasting nozzle when performing shot blasting treatment, and generally performs shot blasting treatment on the surface of the workpiece. When a workpiece with an inner wall such as a star wheel is subjected to shot blasting, it is difficult to perform uniform and rapid shot blasting on the inner wall of the star wheel due to the limitation of the impact angle of the projectile.

Contents of the invention

Aiming at the deficiencies in the prior art, the present invention provides a shot blasting treatment device for a star wheel to solve the problem that the inner wall of the star wheel is difficult to perform shot blasting treatment.

In order to achieve the above object, the basic solution of the present invention is as follows: a shot blasting treatment device for a star wheel, including a number of projectiles, a support frame and a shot blasting unit. A first shot blasting device on a shot blasting tube, the first shot blasting tube is provided with a first blasting port communicating with the first blasting device, the first shot blasting tube is horizontally arranged and fixedly connected to the support frame, the first The shot blasting tube communicates with the projectile transmission part, and the outer wall of the first shot blasting tube is fixedly equipped with several bumps that can offset the inner wall of the star wheel, and the maximum horizontal distance between two adjacent bumps is less than or equal to the axial length of the star wheel.

The technical principle of the present invention is: when performing shot blasting on the inner wall of the star wheel, the star wheel is first installed on the first shot blasting tube, and the inner wall of the star wheel is offset against the bump, so that the inner wall of the star wheel is in contact with the first shot blasting tube. There is a moving distance between the shot openings, which is convenient for shot blasting; then the first shot blaster is turned on, and the projectiles are transferred to the first shot blasting tube through the projectile transmission part, and the projectiles in the first shot blasting tube move to the first shot blasting device At the same time, the first shot blaster blasts the projectiles, and the projectiles are thrown out through the first shot blasting port, and the projectiles impact on the inner wall of the star wheel, so as to realize the shot blasting treatment on the inner wall of the star wheel; at the same time, it can Rotate and move the star wheel horizontally along the first shot blasting tube, so that the inner wall of the star wheel can be opposite to the first shot blasting port, and the shot blasting treatment can be carried out comprehensively.

Further, it also includes a second shot blasting tube and a second blasting device arranged on the second shot blasting tube, the second shot blasting tube is horizontally arranged and fixedly connected to the support frame, the second shot blasting tube communicates with the projectile transmission part, The second blasting tube is provided with a second blasting port communicating with the second blasting device, and the second blasting port is opposite to the outer wall of the first blasting tube.

Through the above settings, the projectile transmission part can transmit the projectiles to the second shot blasting tube. When the projectiles in the second shot blasting tube move to the second shot blasting device, the second shot blasting device blasts the projectiles, and the projectiles pass through the second shot blasting tube. The shot blasting port is thrown out, and the projectile impacts on the outer wall of the star wheel, so that the simultaneous shot blasting process on the outer wall and inner wall of the star wheel can be realized.

Further, it also includes a holding box, the upper end of the holding box is open, the bottom of the holding box is fixedly installed with a filter plate for filtering the projectiles, the support frame is vertically fixedly installed on the filter plate, the first shot blasting port and The second shot blasting openings are all opposite to the openings.

After the shot blasting is completed by the projectile, it will fall back into the container through the opening. At this time, the projectile will impact the filter plate, and the filter plate can filter the metal burrs mixed with the projectile after shot blasting, so as to realize the cleaning of the projectile and also It is convenient to recover the projectile.

Further, the filter plate is arranged obliquely in the container, and the vertical distance between the end of the filter plate away from the support frame and the upper surface of the filter plate is smaller than the vertical distance between the end of the filter plate close to the support frame and the upper surface of the filter plate.

The inclined filter plate can make the projectiles roll better along the filter plate and improve the filtration efficiency of the projectiles; at the same time, it is also convenient to collect the projectiles at the end of the container away from the filter plate, so that the projectiles can be recovered to the projectile Reuse on the transfer unit.

Further, the projectile transmission part includes a conveyor belt, a guide funnel, a number of elastic curved strips that accommodate projectiles, and a transmission part that drives the conveyor belt to rotate. On one side of the conveyor belt, the arc bar is fixed horizontally on the conveyor belt, the axis of the arc bar is perpendicular to the conveying direction of the conveyor belt, and the guide funnel can be opposite to the arc bar at the upper end of the conveyor belt, and the lower end of the guide funnel is in line with the first shot blasting The pipe is connected with the second shot blasting pipe; the lower end of the conveyor belt is opposite to the end of the filter plate close to the support frame.

When conveying projectiles, the conveyor belt drives several arc-shaped strips to rotate synchronously, and the projectiles in the container are limited on the arc-shaped strips, and the arc-shaped strips drive some projectiles to move upward, so that the projectiles move to the upper end of the conveyor belt. When the arc-shaped bar of the projectile moves to the guide funnel, the arc-shaped bar at the upper end of the conveyor belt is folded downward, so that the projectile can quickly enter the guide funnel, and it is convenient to transfer the projectile to the first shot blasting tube and the guide funnel through the guide funnel. In the second shot blasting tube, the rapid transmission of projectiles is realized.

Further, it also includes a rotating unit. The rotating unit includes a rotating shaft, a motor that drives the rotating shaft to rotate, and several rubber wheels that can engage with the star wheel. The motor is fixedly installed on the support frame, and the rotating shaft is arranged horizontally. The axes are parallel, and the rubber wheels are fixedly mounted on the rotating shaft coaxially.

When the star wheel on the first shot blasting tube is rotated, the outer wall of the star wheel is in contact with the outer wall of the rubber wheel. At this time, the motor is started, and the motor drives the rotating shaft and the rubber wheel to rotate, and the rotatable AC drives the star wheel to rotate, so that the star wheel The rotation is more controllable and convenient.

Further, it also includes a protective cover, the protective cover is cylindrical, the protective cover covers the first shot blasting tube, the second shot blasting tube, the rotating shaft and the rubber wheel, and the lower side of the protective cover is provided with a shot opening opposite to the opening .

Through the above settings, when the projectiles are used for shot blasting, the projectiles splashing around can be blocked by the protective cover, and finally fall out through the projectile outlet and enter the container, making the collection of projectiles more convenient.

Further, it also includes a vertically arranged communication pipe, the lower end of the communication pipe communicates with the first shot blasting pipe, the middle part of the communication pipe communicates with the second shot blasting pipe, and the upper end of the communication pipe communicates with the lower end of the guide funnel.

Through the above arrangement, the communication pipe can provide a channel for the transmission of projectiles, so as to facilitate the transmission of projectiles into the first blasting tube and the second blasting tube respectively.

Further, an air pump is also included, the air pump is fixedly installed on the guiding funnel, the air pump is provided with an air outlet, and the air outlet is opposite to the connection between the guiding funnel and the connecting pipe.

Through the above setting, the air outlet on the air pump inflates and pressurizes the connection between the guide funnel and the connecting pipe, so that several projectiles quickly enter the first shot blasting pipe and the second shot blasting pipe through the connecting pipe.

Further, a slag-cleaning port runs through the side wall of the container, and the slag-cleaning port is located on the lower side of the filter plate.

Through the above settings, after the whole device has been in operation for a long time, there will inevitably be some metal burrs on the bottom of the container. At this time, the burrs on the lower side of the filter plate can be cleaned through the slag cleaning port.

Description of drawings

Fig. 1 is a schematic structural view of a shot blasting treatment device for a star wheel in an embodiment of the present invention in the axonometric direction.

Fig. 2 is a schematic structural diagram of a shot blasting treatment device for a star wheel in an embodiment of the present invention in the front view direction.

Fig. 3 is a cross-sectional view at A-A in Fig. 2 .

In the above drawings: support frame 10, protective cover 101, shot outlet 102, container 20, slag removal port 201, filter plate 202, first blasting tube 301, first blasting device 302, bump 312, The first blasting port 303, the second blasting pipe 401, the second blasting device 402, the second blasting port 403, the conveyor belt 501, the arc bar 511, the guide funnel 502, the connecting pipe 503, the air pump 504, the rotating shaft 601, Motor 602, rubber wheel 603, star wheel 70.

Detailed ways

The technical solutions in the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

This embodiment is basically shown in accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, the embodiment of the present invention proposes a kind of shot blasting treatment device for star wheel, comprises several projectiles, support frame 10, shot blasting unit, carrying box 20. The protective cover 101 and the rotating unit, the upper end of the container 20 is open, the bottom of the container 20 is welded with a filter plate 202 for filtering projectiles, the support frame 10 is vertically welded on the filter plate 202, and at the same time, As shown in Figure 2, the filter plate 202 is obliquely arranged in the container 20, and the right end of the filter plate 202 is higher than the left end of the filter plate 202; The slag port 201 is located on the lower side of the filter plate 202 .

As shown in Fig. 1, Fig. 2 and Fig. 3, the shot blasting unit includes a projectile transmission part, a first shot blasting pipe 301, a first shot blasting device 302 arranged in the first shot blasting pipe 301, and a second shot blasting pipe 401 And the second shot blasting device 402 that is arranged in the second shot blasting pipe 401, wherein the projectile transmission part includes a conveyor belt 501, a guide funnel 502, a vertically arranged connecting pipe 503, an air pump 504, several elastic arcs that accommodate projectiles The strip 511 and the transmission part that drives the conveyor belt 501 to rotate, the first blasting tube 301 is provided with the first blasting port 303 communicating with the first blasting device 302, the first blasting tube 301 is horizontally arranged and welded with the support frame 10 , the outer wall of the first shot blasting tube 301 is welded with a number of bumps 312 that can be offset against the inner wall of the star wheel 70, and the maximum horizontal distance between two adjacent bumps 312 is less than or equal to the axial length of the star wheel 70; the second shot blasting The tube 401 is horizontally arranged and welded with the support frame 10. The second blasting tube 401 is provided with a second blasting port 403 communicating with the second blasting device 402. The second blasting port 403 is connected to the first blasting tube 301. The outer walls are opposite, and the first blasting opening 303 and the second blasting opening 403 are vertically downward and opposite to the upper surface of the filter plate 202 .

Simultaneously, as shown in Fig. 1 and Fig. 2 relative, transmission part comprises transmission motor and the transmission wheel that drives conveyor belt 501 to rotate, and transmission motor is welded on support frame 10, and conveyor belt 501 is arranged on the left side of support frame 10 obliquely, and arc bar 511 Horizontally glued on the conveyor belt 501, the axis of the arc strip 511 is perpendicular to the conveying direction of the conveyor belt 501, and the guide funnel 502 can be opposite to the arc strip 511 at the upper end of the conveyor belt 501, and the lower end of the conveyor belt 501 is opposite to the left end of the filter plate 202 Simultaneously, the lower end of the connecting pipe 503 communicates with the first shot blasting pipe 301, the middle part of the connecting pipe 503 communicates with the second shot blasting pipe 401, and the upper end of the connecting pipe 503 communicates with the lower end of the guiding funnel 502; the air pump 504 is welded on the guiding funnel 502 Above, the air pump 504 is provided with an air outlet, and the air outlet is opposite to the connection between the guide funnel 502 and the communication pipe 503 .

As shown in Figure 2 and Figure 3, the rotating unit includes a rotating shaft 601, a motor 602 that drives the rotating shaft 601 to rotate, and several rubber wheels 603 that can engage with the star wheel 70, the motor 602 is welded on the support frame 10, the rotating shaft 601 is horizontally arranged, and The axis of the rotating shaft 601 is parallel to the axis of the second shot blasting tube 401 , and the rubber wheel 603 is coaxially welded on the rotating shaft 601 .

In addition, the protective cover 101 is cylindrical, and the protective cover 101 covers the first shot blasting tube 301, the second shot blasting tube 401, the rotating shaft 601 and the rubber wheel 603, and the lower side of the protective cover 101 is provided with an opening and a filter plate 202 are relative to the pill outlet 102.

When the shot blasting treatment device for a star wheel in this embodiment is in use, the projectile is first placed in the container 20, and the projectile is positioned on the upper side of the filter plate 202; then the air pump 504, the transmission motor, the motor 602, the second One shot blaster 302 and the second shot blaster 402, the transmission motor drives the transmission wheel to rotate, and then the conveyor belt 501 drives several arc bars 511 to rotate synchronously, and the projectiles in the container 20 are limited on the arc bars 511, and the arc The bar 511 drives some projectiles to move upwards, so that the projectiles move to the upper end of the conveyor belt 501. When the arc bar 511 containing the projectiles moves to the guide funnel 502, the arc bar 511 at the upper end of the conveyor belt 501 is folded downward. The projectile can quickly enter the guiding funnel 502, and at this time, the projectile is guided into the connecting pipe 503 by the guiding funnel 502, and the air outlet on the air pump 504 is used to inflate and pressurize the connection between the guiding funnel 502 and the connecting pipe 503, So that some projectiles quickly enter the first blasting tube 301 and the second blasting tube 401 through the connecting pipe 503, and enter the first blasting device 302 and the second blasting device 402 at the same time, and the first blasting device 302 will Projectiles are thrown out from the first blasting opening 303 , and the second blasting device 402 throws the projectiles out from the second blasting port 403 .

At this time, the star wheel 70 to be shot blasted is horizontally inserted on the first shot blasting tube 301, and the inner wall of the star wheel 70 is offset against the bump 312, so that there is a gap between the inner wall of the star wheel 70 and the first shot blasting port 303. Move the distance, and the outer wall of the star wheel 70 is offset against the outer wall of the rubber wheel 603. At this time, the motor 602 drives the rotating shaft 601 and the rubber wheel 603 to rotate, and the rotating AC drives the star wheel 70 to rotate, so that the inner wall of the star wheel 70 is in contact with the first blasting port 303 changes relative to each other, and the outer wall of the star wheel 70 changes relative to the second blasting port 403, so that the projectiles thrown from the first blasting port 303 and the second blasting port 403 can accurately align the inner wall of the star wheel 70 and the second blasting port 403. The outer wall is subjected to shot blasting treatment, and the used projectiles are blocked by the protective cover 101, and finally fall out through the shot outlet 102 and enter the container 20, and the burrs carried on the used projectiles are filtered by the filter plate 202, and then Under the transmission of the transmission unit, the star wheel 70 is subjected to shot blasting again.

After the whole device has been running for a long time, there will inevitably be some metal burrs on the bottom of the container 20. At this time, the burrs on the lower side of the filter plate 202 can be cleaned through the slag cleaning port 201; The operations of filtering, conveying, shot blasting and guided collection realize the cycle of shot blasting treatment; at the same time, the inner wall of star wheel 70 can be shot blasted under the shot blasting treatment of the shot blasting unit, and both the inner wall and the outer wall are shot blasted. The shot blasting efficiency is high.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.

Claims

A shot blasting treatment device for a star wheel, including several projectiles, a support frame and a shot blasting unit, characterized in that the shot blasting unit includes a projectile transmission part, a first shot blasting tube and a The first blasting device, the first blasting tube is provided with a first blasting port communicating with the first blasting device, the first blasting tube is horizontally arranged and fixedly connected to the support frame, the first blasting tube is connected with the support frame The projectile transmission part is connected, and the outer wall of the first shot blasting tube is fixedly installed with several bumps that can be offset against the inner wall of the star wheel. The maximum horizontal distance between two adjacent bumps is less than or equal to the axial length of the star wheel.
A kind of star wheel shot blasting treatment device as claimed in claim 1, is characterized in that, also comprises the second shot blasting pipe and the second shot blasting device that is arranged on the second shot blasting pipe, and the second shot blasting pipe is horizontal Set and fixedly connected with the support frame, the second blasting tube communicates with the projectile transmission part, the second blasting tube is provided with a second blasting port connected with the second blasting device, the second blasting port is connected with the first blasting port The outer walls of the pill tube are opposite.
A shot blasting treatment device for star wheels as claimed in claim 2, characterized in that it also includes a container, the upper end of which is open, and the bottom of the container is fixedly installed to filter the projectiles The filter plate, the support frame is vertically fixedly installed on the filter plate, and the first shot blasting port and the second shot blasting port are both opposite to the opening.
A kind of shot blasting treatment device for star wheel as claimed in claim 3, it is characterized in that, described filter plate is arranged obliquely in the container, and the vertical distance between one end of filter plate away from the support frame and the upper surface of filter plate is less than The vertical distance between the end of the filter plate close to the support frame and the upper surface of the filter plate.
A shot blasting treatment device for a star wheel according to claim 4, wherein the projectile transmission part comprises a conveyor belt, a guide funnel, a plurality of elastic arc-shaped strips that accommodate projectiles, and a transmission part that drives the conveyor belt to rotate, The transmission part is fixedly installed on the support frame, and the conveyor belt is installed obliquely on the side of the support frame away from the first shot blasting tube. The arc strip is fixed and installed on the conveyor belt horizontally. The funnel can be opposite to the arc-shaped strip at the upper end of the conveyor belt, and the lower end of the guide funnel is connected with the first shot blasting tube and the second shot blasting tube; the lower end of the conveyor belt is opposite to the end of the filter plate close to the support frame.
A shot blasting treatment device for a star wheel as claimed in claim 5, further comprising a rotating unit, the rotating unit including a rotating shaft, a motor that drives the rotating shaft to rotate, and several rubber wheels that can mesh with the star wheel, and the motor It is fixedly installed on the support frame, the rotating shaft is arranged horizontally, and the axis of the rotating shaft is parallel to the axis of the second shot blasting tube, and the rubber wheel is coaxially fixedly installed on the rotating shaft.
A shot blasting treatment device for a star wheel according to claim 6, further comprising a protective cover, the protective cover is cylindrical, and the protective cover covers the first shot blasting tube, the second shot blasting tube, and the rotating shaft And rubber wheels, and the lower side of the protective cover is provided with a shot opening opposite to the opening.
A kind of shot blasting treatment device for star wheel as claimed in claim 7, it is characterized in that, also comprises the communication pipe that vertically is arranged, and the lower end of described communication pipe communicates with the first shot blasting pipe, and the middle part of the communication pipe connects with the first shot blasting pipe. The two shot blasting pipes are connected, and the upper end of the connecting pipe is connected with the lower end of the guiding funnel.
A kind of star wheel shot blasting treatment device as claimed in claim 8, is characterized in that, also comprises air pump, and described air pump is fixedly installed on the guide funnel, is provided with air outlet on the air pump, and the air outlet is connected with guide funnel and connecting pipe relative to the connection.
A shot blasting treatment device for a star wheel according to any one of claims 3-9, wherein a slag cleaning port runs through the side wall of the container, and the slag cleaning port is located under the filter plate side.