Screening equipment for stainless steel shots

Abstract

The stainless steel shot screening equipment comprises a moving screening mechanism, a first cam and a drainage mechanism, the moving screening mechanism comprises a motor, a rotating shaft, an adjustable rotating frame, a telescopic baffle, a screening cover, a screening channel, a reverse blowing pipe network and a gas conveying pipeline, and the output end of the motor is connected with the bottom end of the rotating shaft through a base plate; adjusting type rotating frames are distributed on the side face of the rotating shaft in an annular array mode. According to the screening equipment for the stainless steel shots, a motor drives a rotating shaft to drive an adjustable rotating frame and a telescopic baffle at the bottom of the adjustable rotating frame to rotate, so that the stainless steel shots in a screening cover sequentially pass through the positions above a primary screening hole, a secondary screening hole, a third-stage screening hole and a fourth-stage screening hole; and meanwhile, the stainless steel pellets with the corresponding particle sizes fall off sequentially through the screening holes with the corresponding appropriate pore diameters, so that multiple screening work of the single-section height difference can be achieved, the screening process line of the stainless steel pellets is shortened, and damage to the device caused by multi-section falling of the stainless steel pellets is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of stainless steel shot processing, in particular to a stainless steel shot screening device. Background Art

[0002] Stainless steel shot is mainly used for the surface treatment of workpieces by shot blasting machines. The existing stainless steel shot production process is sophisticated, which can be roughly divided into wire drawing process, cutting process, gas atomization method, water atomization method and mechanical cutting method. Regardless of which production process or method is used, screening equipment is required to screen the prepared pellets to ensure the uniformity of the pellets. After searching, it is found that the screening equipment of stainless steel shot in the prior art is typically such as the announcement number CN214052494U, a stainless steel shot screening machine, which includes a frame, a screening body, a vibration motor and a shock absorbing mechanism. The end of the frame away from the ground is elastically connected to the screening body through a shock absorbing mechanism. The screening body is a rectangular structure with a hollow interior. The end of the screening body away from the ground is provided with a feed port. The screening body is provided with a screening mechanism. The first screening component of the screening mechanism is located in the direction of the second screening component close to the feed port, and the vibration motor is arranged at the end of the screening body close to the ground. Its main feature is that it has the effect of improving the screening efficiency of stainless steel shots.

[0003] The existing stainless steel shot screening equipment is mostly distributed vertically, that is, the stainless steel shots are graded layer by layer by means of continuous multi-layer dropping, which makes the screening process line of the stainless steel shots too long, which is easy to cause blockage. At the same time, the multi-section height difference reduces the service life of the screening mesh components inside the device due to continuous collision of steel shots, and aggravates noise pollution. In view of the above problems, it is necessary to improve the existing equipment. Summary of the invention

[0004] The object of the present invention is to provide a screening device for stainless steel shots to solve the problem that the existing screening devices for stainless steel shots proposed in the above background technology are mostly distributed longitudinally, that is, the stainless steel shots are graded layer by layer by means of continuous falling of multiple layers, which makes the screening process line of the stainless steel shots too long, and thus easily causes blockage. At the same time, the multiple height differences reduce the service life of the screening mesh components inside the device due to continuous collision of steel shots, and aggravate noise pollution.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a screening device for stainless steel shots, comprising a motion screening mechanism, a first cam and a drainage mechanism, wherein the motion screening mechanism comprises a motor, a rotating shaft, an adjustable rotating frame, a telescopic baffle, a screening cover, a screening channel, a back-blowing pipe network and a gas pipeline, and the output end of the motor is connected to the bottom end of the rotating shaft through a pad, the side of the rotating shaft is provided with an adjustable rotating frame in a ring array, and the bottom end of the adjustable rotating frame is provided with a telescopic baffle, the telescopic baffle is arranged inside the screening cover, a screening channel is opened at the bottom of the screening cover, and a back-blowing pipe network is arranged below the screening cover, and the screening channel is used to screen stainless steel shots of different diameters, the back-blowing pipe network is fixedly connected to a side wall of the rotating shaft, and the back-blowing pipe network is connected to one end of the gas pipeline, and a one-way exhaust valve is arranged on the gas pipeline.

[0006] Preferably, the motor is installed in a cavity inside the base, and load-bearing steel balls are arranged between the base and the pad. There are two groups of load-bearing steel balls, and both groups of load-bearing steel balls are distributed in a circular array at the bottom of the pad.

[0007] Preferably, the adjustable rotating frame and the telescopic baffle are provided in four groups, and the bottom of the telescopic baffle is in contact with the inner bottom of the screening cover.

[0008] Preferably, the screening hood is arranged on the inner side of the sound absorbing hood, and the outer walls on two opposite sides of the screening hood are fixedly connected to the inner wall of the sound absorbing hood through telescopic columns.

[0009] Preferably, the screening channel includes primary screening holes, secondary screening holes, tertiary screening holes and quaternary screening holes, and the secondary screening holes, secondary screening holes, tertiary screening holes and quaternary screening holes are arranged counterclockwise at the bottom of the screening cover, and the apertures of the primary screening holes, secondary screening holes, tertiary screening holes and quaternary screening holes are increasing.

[0010] Preferably, the first cam is arranged on the rotating shaft, and the protrusion of the first cam is arranged inside the special-shaped groove on the inner wall of the sleeve, and the sleeve is fixedly arranged at the center position of the screening cover, and the depth of the special-shaped groove close to the secondary screening hole is shallower than the depth of other parts in the special-shaped groove.

[0011] Preferably, a second cam is arranged below the first cam, and a discharge promoting mechanism is distributed in a circular array on the outer side of the second cam, and the discharge promoting mechanism is arranged below the screening channel. The second cam is a telescopic cam, and the second cam includes a main body, a connecting spring group and a magnetic protrusion. The main body is arranged on a rotating shaft, and the main body is connected to one side of the magnetic protrusion through a connecting spring group.

[0012] Preferably, the exhaust promotion mechanism includes an exhaust promotion box, a telescopic spring group, an air bag, an external exhaust pipe and an arc magnet, and the outer wall of the exhaust promotion box is connected to the air bag and the inner wall of the sound hood through the telescopic spring group, the exhaust promotion box is connected to one end of the external exhaust pipe, and the other end of the external exhaust pipe is arranged on the outside of the sound hood, and the base is arranged on the top of the base, and the arc magnet is arranged inside the exhaust promotion box, and the arc magnet is magnetically connected to the magnetic protrusion.

[0013] Preferably, the airbag is connected to the other end of the gas pipeline, and a one-way air inlet valve is provided on the airbag.

[0014] Preferably, the drainage mechanism is arranged directly between the drainage promotion mechanism and the sound absorbing cover, and the drainage mechanism includes a drainage tube, a rubber pad and a support frame, and the drainage tube is correspondingly arranged above the drainage promotion box, a rubber pad is bonded to the inner wall of the drainage tube, and the drainage tube is fixedly connected to the inner wall of the sound absorbing cover through the support frame, the top diameter of the drainage tube is larger than the bottom diameter of the drainage tube, and the bottom of the drainage tube is located on the outside of the arc magnet, and the inner bottom of the drainage promotion box is in the shape of an inclined slope with a higher inner side and a lower outer side.

[0015] Compared with the prior art, the invention has the following beneficial effects: the screening device for stainless steel shot, (1) The present invention can effectively solve the problem that the existing stainless steel shot screening equipment is mostly distributed longitudinally, that is, the stainless steel shots are graded layer by layer by a multi-layer continuous falling method, which makes the screening process line of the stainless steel shots too long, which is easy to cause blockage. At the same time, the multi-stage height difference reduces the service life of the screening mesh component inside the device due to continuous collision of the steel shots. The motor drives the rotating shaft to drive the adjustable rotating frame and the telescopic baffle at the bottom to rotate, so that the stainless steel shots in the screening cover pass through the primary screening hole, the secondary screening hole, the tertiary screening hole and the fourth screening hole in turn. At the same time, the stainless steel shots of the corresponding particle size fall through the screening holes of the corresponding appropriate apertures in turn, thereby realizing multiple screening of a single-stage height difference. Work, and thereby shorten the screening process line of stainless steel shots, reduce the damage to the device caused by the multi-stage falling of stainless steel shots, on the other hand, when the rotating shaft drives the adjustable rotating frame and the telescopic baffle to rotate, the first cam above it rotates synchronously, and when the first cam rotates, the position of its convex point changes accordingly and moves in the special-shaped groove. When the convex point of the first cam rotates to the inside of the secondary screening hole area, the depth of the special-shaped groove becomes shallower, so that the convex point of the first cam contacts the side wall of the special-shaped groove, and then the screening cover is pushed to the left as a whole through the sleeve and squeezes the telescopic column on the left side for support. Similarly, when the convex point of the first cam rotates away from the inside of the secondary screening hole area, the screening cover is reset, thereby realizing the continuous reciprocating swing of the screening cover, and preventing the screening cover from being blocked during the motion screening process; (2) The present invention can effectively solve the problem of stainless steel pellets blocking the screening cover and the external discharge pipe by using the second cam and the promotion mechanism in combination. The first cam and the second cam above the first cam rotate synchronously. When the second cam rotates, the position of its convex point changes accordingly. When its convex point moves and squeezes to contact the promotion box, the telescopic spring group and the airbag are compressed, deformed and contracted, so that the gas inside the airbag is discharged to the inside of the back-blowing pipe network through the gas pipeline. The airflow discharged from the back-blowing pipe network loosens the stainless steel pellets stuck in the screening cover, thereby assisting the telescopic baffle to move the stainless steel pellets for the next screening operation, and thereby further preventing them from blocking the screening holes and affecting the normal screening work. In addition, the promotion box moves and changes position synchronously during the deformation of the telescopic spring group and the airbag, thereby promoting the rapid and continuous external discharge of the stainless steel pellets inside the promotion box through the external discharge pipe, thereby ensuring the discharge efficiency during the continuous screening process. (3) The combination of the drainage mechanism and the sound-absorbing cover of the present invention can effectively solve the problem of aggravated noise pollution during the screening process due to multiple step differences. The four groups of drainage tubes respectively drain the pellets screened by the primary screening holes, the secondary screening holes, the tertiary screening holes and the quaternary screening holes, so that they quickly converge into the four groups of drainage boxes corresponding to the storage of stainless steel pellets to prevent them from affecting and mixing each other. In addition, the rubber pad inside the drainage tube plays a role in protecting and initially reducing noise during the drainage of the stainless steel pellets, thereby reducing the two-way damage to the stainless steel pellets and the drainage tube caused by the height difference, and reducing noise by avoiding direct contact between the stainless steel pellets and the drainage tube. The adsorption capacity of the sound-absorbing cover can further eliminate the harm of noise to the staff and the pollution to the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an isometric view of a screening device for stainless steel shots of the present invention; Figure 2 It is a partial cross-sectional schematic diagram of the positional relationship between the screening holes, the drainage mechanism and the drainage promotion mechanism of a screening device for stainless steel shots of the present invention; Figure 3 It is an isometric view of a screening device for stainless steel shots of the present invention; Figure 4 This is an overall schematic diagram of the positional relationship between the first cam, the second cam, the pad and the load-bearing steel balls of a stainless steel shot screening device invented by the present invention; Figure 5 The present invention invents a screening device for stainless steel shots Figure 2 The enlarged structural diagram at A in the middle; Figure 6 The present invention invents a screening device for stainless steel shots Figure 3 The enlarged structural diagram at B in the middle; Figure 7This is a schematic diagram of the overall structure of a stainless steel shot screening device and a discharge mechanism invented by the present invention; Figure 8 This is a schematic diagram of the overall structure of the positional relationship between the rotating shaft, the first cam, the sleeve and the special-shaped groove of a stainless steel shot screening device invented by the present invention; Fig. 9 The present invention is a schematic diagram of the overall cross-sectional structure of the positional relationship between the special-shaped groove 4 and the first cam 2 of a stainless steel shot screening device.

[0017] In the figure: 1. Motion screening mechanism; 101. Motor; 102. Rotating shaft; 103. Adjustable rotating frame; 104. Telescopic baffle; 105. Screening cover; 106. Screening channel; 1061. Primary screening hole; 1062. Secondary screening hole; 1063. Tertiary screening hole; 1064. Quaternary screening hole; 107. Backflush pipe network; 108. Gas pipeline; 2. First cam; 3. Sleeve; 4. Special-shaped groove; 5. Sound-absorbing cover; 6. Second cam; 7. Exhaust-promoting mechanism; 701. Exhaust-promoting box; 702. Telescopic spring group; 703. Air bag; 704. External exhaust pipe; 705. Arc magnet; 8. Pad; 9. Load-bearing steel ball; 10. Telescopic column; 11. Base; 12. Drainage mechanism; 1201. Drainage tube; 1202. Rubber pad; 1203. Support frame. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-9The present invention provides a technical solution: a screening device for stainless steel shots, wherein a motion screening mechanism 1 comprises a motor 101, a rotating shaft 102, an adjustable rotating frame 103, a telescopic baffle 104, a screening cover 105, a screening channel 106, a back-blowing pipe network 107 and a gas pipeline 108, and the output end of the motor 101 is connected to the bottom end of the rotating shaft 102 through a pad 8, and the side of the rotating shaft 102 is provided with an adjustable rotating frame 103 in a ring array, and the bottom end of the adjustable rotating frame 103 is provided with a telescopic baffle 104, and the telescopic baffle 104 is arranged inside the screening cover 105, and a screening channel 106 is opened at the bottom of the screening cover 105, and a back-blowing pipe network 107 is arranged below the screening cover 105, and the back-blowing pipe network 107 is fixedly connected to a side wall of the rotating shaft 102, and the screening channel 106 is used to screen the impurities. The stainless steel pills of the same diameter are connected to one end of the gas pipeline 108 by the back-blowing pipe network 107. At the same time, a one-way exhaust valve is arranged on the gas pipeline 108. In the actual working process, the stainless steel pills to be screened are discharged to the screening cover 105, and the stainless steel pills of different diameters are screened through the screening channel 106. At the same time, the discharge is stopped when the telescopic baffle 104 starts to rotate. The motor 101 drives the pad 8 and the rotating shaft 102 at its top to drive the adjustable rotating frame 103 and the telescopic baffle 104 at its bottom to rotate counterclockwise to push the stainless steel pills to move in the screening cover 105 for screening. The staff can adjust the height of the telescopic baffle 104 up and down according to actual needs to meet different usage and maintenance requirements. When the screening cover 105 needs to be maintained or cleaned, the height of the telescopic baffle 104 can be adjusted to the lowest, as shown in the attached figure. Figure 1 As shown, since the telescopic baffle 104 and the adjustable rotating frame 103 are both existing conventional structures, they will not be described in detail here.

[0020] The motor 101 is installed in the cavity inside the base 11, and load-bearing steel balls 9 are arranged between the base 11 and the pad 8. There are two groups of load-bearing steel balls 9, and both groups of load-bearing steel balls 9 are distributed in a circular array at the bottom of the pad 8. The load-bearing steel balls 9 play an auxiliary supporting role.

[0021] The adjustable rotating frame 103 and the telescopic baffle 104 are each provided with four groups, and the bottom of the telescopic baffle 104 contacts the inner bottom of the screening cover 105, the screening cover 105 is arranged on the inner side of the sound absorbing cover 5, and the outer walls on both sides of the screening cover 105 are fixedly connected to the inner wall of the sound absorbing cover 5 through the telescopic column 10, and the telescopic column 10 plays the role of supporting and connecting the screening cover 105 to swing left and right, and the telescopic column 10 is composed of a telescopic guide rod, a cylinder and a spring shaft, that is, the inner bottom of the cylinder is connected to the spring shaft and one of the telescopic guide rods. The ends are connected, the spring shaft is arranged on the outside of the telescopic guide rod, the telescopic guide rod is slidably connected to the inside of the cylinder, the gap between the screening cover 105 and the telescopic baffle 104 when it swings is smaller than the minimum diameter of the screened stainless steel pellets, and the eccentricity difference of the first cam 2 also meets the above requirements, thereby preventing the stainless steel pellets from rolling through the gap to the other side of the telescopic baffle 104 during the left and right swinging of the screening cover 105 and getting stuck between the screening cover 105 and the telescopic baffle 104 when it swings, affecting the normal swinging.

[0022] The screening channel 106 includes a primary screening hole 1061, a secondary screening hole 1062, a tertiary screening hole 1063 and a quaternary screening hole 1064, and the primary screening hole 1061, the secondary screening hole 1062, the tertiary screening hole 1063 and the quaternary screening hole 1064 are arranged in a counterclockwise direction at the bottom of the screening cover 105, and the apertures of the primary screening hole 1061, the secondary screening hole 1062, the tertiary screening hole 1063 and the quaternary screening hole 1064 are increased in increments, and the stainless steel pellets pass through the primary screening hole 1061, the secondary screening hole 1062, the tertiary screening hole 1063 and the quaternary screening hole 1064 in sequence. 3 and the fourth-level screening holes 1064, and the stainless steel shots of the corresponding particle sizes fall through the screening holes of the corresponding suitable apertures in succession, thereby realizing multiple screening work with a single-stage height difference, thereby shortening the screening process line of the stainless steel shots, and discharging the stainless steel shots to be screened to the primary screening holes 1061 on the screening cover 105, and the number of the stainless steel shots discharged to the primary screening holes 1061 at a single time is less than the number of the primary screening holes 1061 on the screening cover 105, and at the same time avoiding overload damage to the telescopic column 10 supporting the screening cover 105 due to excessive single discharge.

[0023] The first cam 2 is arranged on the rotating shaft 102, and the convex point of the first cam 2 is arranged inside the special-shaped groove 4 on the inner wall of the sleeve 3, and the sleeve 3 is fixedly arranged at the center position of the screening cover 105, as shown in the attached Fig. 9As shown, the depth of the special-shaped groove 4 near the secondary screening hole 1062 is shallower than the depth of other parts in the special-shaped groove 4. When the convex point of the first cam 2 rotates to the inner side of the secondary screening hole 1062, the depth of the special-shaped groove 4 gradually becomes shallower, so that the convex point of the first cam 2 contacts the side wall of the special-shaped groove 4, and then the convex point of the first cam 2 compresses the sleeve 3 to push the screening cover 105 connected thereto to move to the left as a whole and squeeze the left group of telescopic columns 10 for support. At this time, the right group of telescopic columns 10 are in an extended state. Similarly, when the convex point of the first cam 2 rotates away from the inner side of the secondary screening hole 1062, that is, when the convex point of the first cam 2 rotates to the inner side of the secondary screening hole 1062, the tertiary screening hole 1063 and the fourth screening hole 1064, the screening cover 105 moves to the right and resets under the pull of the right group of telescopic columns 10, thereby realizing the continuous left and right reciprocating swing of the screening cover 105.

[0024] A second cam 6 is arranged below the first cam 2, and a discharge promoting mechanism 7 is distributed in a circular array on the outer side of the second cam 6. At the same time, the discharge promoting mechanism 7 is arranged below the screening channel 106. The second cam 6 is a telescopic cam, and the second cam 6 includes a main body, a connecting spring group and a magnetic protrusion. The main body is arranged on the rotating shaft 102, and the main body is connected to one side of the magnetic protrusion through the connecting spring group. The discharge promoting mechanism 7 includes a discharge promoting box 701, a telescopic spring group 702, an air bag 703, an external discharge pipe 704 and an arc magnet 705, and the outer wall of the discharge promoting box 701 is connected by the telescopic spring group 702. The airbag 703 is connected to the inner wall of the sound absorbing cover 5, the exhaust box 701 is connected to one end of the external exhaust pipe 704, and the other end of the external exhaust pipe 704 is set on the outside of the sound absorbing cover 5, and the base 11 is set on the top of the base 11, the arc magnet 705 is set inside the exhaust box 701, and the arc magnet 705 is magnetically connected to the magnetic protrusion. When the protrusion moves and squeezes to contact the exhaust box 701, the telescopic spring group 702 and the airbag 703 are compressed, deformed and contracted, and the protrusion of the second cam 6 is in the airbag 703, thereby allowing the gas inside the airbag 703 to be discharged to the reverse through the gas pipeline 108. The inside of the blow pipe net 107, and the airflow discharged by the back-blowing pipe net 107, during the rotation process and under the adsorption of the arc magnet 705, the magnetic protrusion on the second cam 6 stretches the connecting spring group to increase the squeezing of the exhaust box 701 and the air bag 703, so that the air bag 703 and the back-blowing pipe net 107 increase the exhaust volume, and in the process of exhausting gas from bottom to top, the position of the stainless steel pellets stuck in the screening channel 106 is loosened, so that the telescopic baffle 104 can clean and scrape it out during the rotation process. In addition, the exhaust box 701 is connected to the telescopic spring group 702 and the air bag 703. During the deformation process, the position moves and changes synchronously, thereby promoting the rapid and continuous discharge of the stainless steel pellets located outside the arc magnet 705 inside the discharge box 701 through the discharge pipe 704, thereby ensuring the discharge efficiency during the continuous screening process. At the same time, a hole is provided on the side of the discharge box 701 close to the second cam 6, thereby reducing the blocking effect of the side wall on the second cam 6 and the arc magnet 705, which is not shown in the accompanying drawings. In addition, the material of the discharge box 701 is aluminum or other non-ferromagnetic metals, thereby avoiding the mutual influence of two adjacent groups of discharge boxes 701 during the magnetic attraction process.

[0025] The airbag 703 is connected to the other end of the gas pipeline 108, and a one-way air intake valve is provided on the airbag 703, which allows external gas to continuously enter the airbag 703 to replenish the gas volume, thereby ensuring normal exhaust.

[0026] The drainage mechanism 12 is arranged directly between the drainage mechanism 7 and the sound-absorbing cover 5, and the drainage mechanism 12 includes a drainage tube 1201, a rubber pad 1202 and a support frame 1203. At the same time, the drainage tube 1201 is correspondingly arranged above the drainage box 701, and the rubber pad 1202 is bonded to the inner wall of the drainage tube 1201, and the drainage tube 1201 is fixedly connected to the inner wall of the sound-absorbing cover 5 through the support frame 1203. The top diameter of the drainage tube 1201 is larger than the bottom diameter of the drainage tube 1201, and the bottom of the drainage tube 1201 is located inside the drainage box 701 outside the arc magnet 705. At the same time, the inner bottom of the drainage box 701 is an inclined slope with a high inner side and a low outer side. Then the stainless steel pellets of corresponding sizes will fall below it through the primary screening hole 1061. The stainless steel pellets that do not meet the requirements are pushed to the top of the secondary screening holes 1062, the tertiary screening holes 1063 and the quaternary screening holes 1064 in turn, and the stainless steel pellets of corresponding sizes will fall down accordingly and be discharged to the outside of the arc magnet 705 in different promotion boxes 701 under the drainage action of the drainage tube 1201 below. The rubber pad 1202 inside the drainage tube 1201 prevents the stainless steel pellets from directly contacting the drainage tube 1201, thereby achieving noise reduction at the source.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A screening device for stainless steel shots, comprising a motion screening mechanism, a first cam and a drainage mechanism, characterized in that: The motion screening mechanism includes a motor, a rotating shaft, an adjustable rotating frame, a telescopic baffle, a screening hood, a screening channel, a back-blowing pipe network and a gas pipeline, and the output end of the motor is connected to the bottom end of the rotating shaft through a pad, the side of the rotating shaft is distributed with an adjustable rotating frame in a ring array, and the bottom end of the adjustable rotating frame is provided with a telescopic baffle, the telescopic baffle is arranged inside the screening hood, a screening channel is opened at the bottom of the screening hood, and a back-blowing pipe network is arranged below the screening hood, and the screening channel is used to screen stainless steel pills of different diameters, the back-blowing pipe network is fixedly connected to a side wall of the rotating shaft, and the back-blowing pipe network is connected to one end of the gas pipeline, and a one-way exhaust valve is arranged on the gas pipeline.

2. The stainless steel shot screening device according to claim 1, characterized in that: The motor is installed in the cavity inside the base, and load-bearing steel balls are arranged between the base and the pad. There are two groups of load-bearing steel balls, and both groups of load-bearing steel balls are distributed in a circular array at the bottom of the pad.

3. The stainless steel shot screening device according to claim 1, characterized in that: The adjustable rotating frame and the telescopic baffle are both provided in four groups, and the bottom of the telescopic baffle is in contact with the inner bottom of the screening cover.

4. The stainless steel shot screening device according to claim 1, characterized in that: The screening hood is arranged on the inner side of the sound absorbing hood, and the outer walls on two opposite sides of the screening hood are fixedly connected to the inner wall of the sound absorbing hood through telescopic columns.

5. The stainless steel shot screening device according to claim 1, characterized in that: The screening channel includes primary screening holes, secondary screening holes, tertiary screening holes and quaternary screening holes, and the secondary screening holes, secondary screening holes, tertiary screening holes and quaternary screening holes are arranged at the bottom of the screening cover in a counterclockwise direction, and the apertures of the primary screening holes, secondary screening holes, tertiary screening holes and quaternary screening holes are increasing.

6. The stainless steel shot screening device according to claim 1, characterized in that: The first cam is arranged on the rotating shaft, and the convex point of the first cam is arranged inside the special-shaped groove on the inner wall of the sleeve. At the same time, the sleeve is fixedly arranged at the center position of the screening cover, and the depth of the special-shaped groove close to the secondary screening hole is shallower than the depth of other parts in the special-shaped groove.

7. The stainless steel shot screening device according to claim 1, characterized in that: A second cam is arranged below the first cam, and a discharge promoting mechanism is distributed in a circular array on the outside of the second cam. At the same time, the discharge promoting mechanism is arranged below the screening channel. The second cam is a telescopic cam, and the second cam includes a main body, a connecting spring group and a magnetic protrusion. The main body is arranged on a rotating shaft, and the main body is connected to one side of the magnetic protrusion through a connecting spring group.

8. The stainless steel shot screening device according to claim 7, characterized in that: The exhaust promotion mechanism includes an exhaust promotion box, a telescopic spring group, an air bag, an external exhaust pipe and an arc magnet, and the outer wall of the exhaust promotion box is connected to the air bag and the inner wall of the sound hood through the telescopic spring group, the exhaust promotion box is connected to one end of the external exhaust pipe, and the other end of the external exhaust pipe is arranged on the outside of the sound hood, and the base is arranged on the top of the base, and the arc magnet is arranged inside the exhaust promotion box, and the arc magnet is magnetically connected to the magnetic protrusion.

9. The stainless steel shot screening device according to claim 8, characterized in that: The air bag is connected to the other end of the gas pipeline, and a one-way air inlet valve is arranged on the air bag.

10. The stainless steel shot screening device according to claim 1, characterized in that: The drainage mechanism is arranged directly between the drainage promotion mechanism and the sound absorbing cover, and the drainage mechanism includes a drainage tube, a rubber pad and a support frame. At the same time, the drainage tube is correspondingly arranged above the drainage promotion box. The rubber pad is bonded to the inner wall of the drainage tube, and the drainage tube is fixedly connected to the inner wall of the sound absorbing cover through the support frame. The top diameter of the drainage tube is larger than the bottom diameter of the drainage tube, and the bottom of the drainage tube is located on the outside of the arc magnet. At the same time, the inner bottom of the drainage promotion box is an inclined slope with a higher inner side and a lower outer side.

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