Wear-resistant impeller head for shot blasting machine

Abstract

The utility model discloses a wear-resistant impeller head for a shot blasting machine, and relates to the technical field of shot blasting machines. The wear-resistant impeller head for the shot blasting machine comprises a shot feeding pipe, a shot blasting mechanism is arranged at the bottom end of the shot feeding pipe, the supporting assembly comprises a feeding plate fixedly installed at the bottom end of the shot feeding pipe, a top cover is fixedly installed at the top of the feeding plate, a back plate is fixedly installed at the bottom end of the top cover, side plates are fixedly installed on the two sides of the feeding plate and the two sides of the back plate, and the shot blasting mechanism is fixedly installed on the side plates. Limiting columns are installed on one side of the feeding plate, one side of the back plate and one side of the side plate in a penetrating mode, springs are installed on the outer sides of the limiting columns in a penetrating mode, the moving direction of the protection plate is limited through the limiting columns, meanwhile, the springs on the outer sides of the limiting columns can limit the position of the protection plate, and when steel shots impact the protection plate, the protection plate can move within a certain range and extrude the springs; kinetic energy of the steel shots is converted into internal energy of the springs, so that damage to the protection plate when the steel shots impact the protection plate is reduced, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of shot blasting machine technology, specifically to a wear-resistant shot blasting device for shot blasting machines. Background Technology

[0002] Shot blasting impellers are generally driven by a motor. The motor drives the impeller shaft to rotate at high speed. Inside the impeller is a shot distribution wheel. Under the action of centrifugal force, the shot is accelerated and thrown out along the tangential direction of the shot distribution wheel. The shot thrown out from the shot distribution wheel will be thrown onto the high-speed rotating blades. The blades rotate at high speed with the impeller. Their linear velocity can usually reach tens of meters per second or even higher. Driven by the blades, the shot gains huge kinetic energy and flies outward at extremely high speed along the length of the blades.

[0003] The existing Chinese utility model patent with publication number CN204772125U discloses a shot blasting device for a sandblasting machine, comprising a shot chute made entirely of chromium-molybdenum alloy, a distributor, a control cage, blades, and protective plates. The ends of the shot chute, the distributor, and the control cage are located on the same axis. There are at least two protective plates, respectively disposed on both sides of the shot blasting device. This utility model uses high-chromium-molybdenum alloy materials throughout, featuring exquisite casting technology, clear outlines, a non-porous surface, uniform weight control of each wear-resistant component, and small weight difference between blades. This significantly reduces noise during machine operation, extends the life of easily worn parts, reduces the time spent on manual replacement of parts, and improves production efficiency.

[0004] In existing shot blasting machines, after the steel shot is discharged from the shot distribution wheel at the center of the impeller, it cannot rotate with the impeller's rotation axis as the reference. The impeller will impact the steel shot at a certain speed, causing the impeller blades to wear during the impact, affecting the impeller's service life. Furthermore, when the impeller rotates and throws out the steel shot, some of the steel shot will impact the outer shell, affecting the service life of the outer shell. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a wear-resistant shot blasting device for shot blasting machines, which solves the problems of short impeller blade life and steel shot impacting the outer shell.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A wear-resistant shot blasting device for a shot blasting machine includes a shot inlet pipe, and a shot blasting mechanism is provided at the bottom end of the shot inlet pipe.

[0007] The support assembly includes a feed plate fixedly installed at the bottom end of the shot inlet pipe, a top cover fixedly installed on the top of the feed plate, a back plate fixedly installed at the bottom end of the top cover, side plates fixedly installed on both sides of the feed plate and the back plate, a limit post inserted through one side of the feed plate, the back plate and the side plates, a spring inserted through the outside of the limit post, a protective plate fixedly installed at one end of the limit post, and a spring sheet fixedly installed inside the top cover;

[0008] The drive component, located at the center of the support component, is used to drive the steel shot to rotate and throw the steel shot out through centrifugal force.

[0009] Preferably, the feed plate has a pipe structure at its center, and the feed plate is fixedly connected to the back plate through the top cover. The side plates are mirror-symmetrically installed on the left and right sides of the feed plate and the back plate. The protective plate has three models, which correspond to the dimensions of the back plate, side plates and top cover respectively.

[0010] Preferably, the protective plate is slidably connected to the back plate, feed plate, and side plate via a limiting post. The protective plate is also fitted inside the top cover and is slidably connected to the top cover. The top of the protective plate inside the top cover is fixedly connected to the arc-shaped bottom of the spring.

[0011] Preferably, the drive assembly includes a bearing fitted inside the feed plate, a shot distribution tube fixedly installed inside the bearing, a limiting plate fixedly installed on the outside of the shot distribution tube, a blade fitted on one side of the limiting plate, a rubber plate fixedly installed on one side of the blade, and a drive motor fixedly installed on one side of the back plate.

[0012] Preferably, the surface of the pelletizing tube is provided with a ring-shaped perforation structure, the limiting disk is installed symmetrically at the front and rear ends of the perforation structure of the pelletizing tube, and a sliding groove structure is provided on one side of the limiting disk. There are a total of eight blades, which are installed in a ring on the outside of the pelletizing tube with the center of the pelletizing tube as the reference.

[0013] Preferably, the thickness of the inner end of the blade is less than the thickness of the outer end, the inner end of the blade is fitted with the outer surface of the shot-dividing tube, the rubber plate is fixedly installed above the working surface of the blade, and the inner end of the rubber plate has an arc surface structure. The end of the arc surface structure of the rubber plate is flush with one side of the opening structure of the shot-dividing tube, and the shaft of the drive motor is fixedly connected to one end of the shot-dividing tube.

[0014] Beneficial effects

[0015] This utility model provides a wear-resistant shot blasting device for shot blasting machines. Compared with the prior art, it has the following advantages:

[0016] Beneficial effects:

[0017] (1) The shot blasting machine uses a wear-resistant shot blaster. The protective plate is made of cast iron and has high hardness. The protective plate, which is matched with the feed plate and side plate in size, protects the feed plate, back plate and side plate. The movement direction of the protective plate is restricted by the limit post. At the same time, the spring on the outside of the limit post can restrict the position of the protective plate. When the steel shot hits the protective plate, the protective plate can move within a certain range and squeeze the spring, so that the kinetic energy of the steel shot is converted into the internal energy of the spring, thereby reducing the damage to the protective plate when the steel shot hits the protective plate and improving its service life.

[0018] (2) The shot blasting machine uses a wear-resistant shot blaster. Through the setting of the shot distribution tube, the surface of the shot distribution tube is provided with a strip-shaped opening structure distributed in a ring. The thickness of the inner end of the blade is less than that of the outer end. The inner end of the blade is fitted with the outer side of the shot distribution tube. The rubber plate is fixedly installed above the working surface of the blade. The inner end of the rubber plate is an arc structure. The end of the rubber plate protective structure is flush with one side of the opening structure of the shot distribution tube. The shot distribution tube can facilitate the restriction of steel shot entering the space between the blades. Some steel shot can maintain contact with the rubber plate to reduce the wear caused by the blade impacting the steel shot. In addition, the rubber plate is made of EPDM rubber, which has a fast deformation recovery speed. When the steel shot impacts the surface of the rubber plate, the rubber plate can deform to reduce the impact force of the steel shot and recover quickly, which protects the blade and improves the service life of the blade. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the feed plate of this utility model;

[0021] Figure 3 This is a schematic diagram of the installation structure of the protective plate of this utility model;

[0022] Figure 4 This is a schematic diagram of the blade mounting structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the cross-sectional structure of the pellet tube of this utility model;

[0024] In the diagram: 1. Shot inlet pipe; 2. Shot blasting mechanism; 21. Support assembly; 211. Feed plate; 212. Top cover; 213. Back plate; 214. Side plate; 215. Limiting post; 216. Spring; 217. Protective plate; 218. Spring leaf; 22. Drive assembly; 221. Bearing; 222. Shot distribution pipe; 223. Limiting disc; 224. Blade; 225. Rubber plate; 226. Drive motor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 This utility model provides a technical solution: a wear-resistant shot blasting device for a shot blasting machine includes a shot inlet pipe 1, and a shot blasting mechanism 2 is provided at the bottom end of the shot inlet pipe 1.

[0027] The support assembly 21 includes a feed plate 211 fixedly installed at the bottom end of the shot inlet pipe 1. A top cover 212 is fixedly installed on the top of the feed plate 211, and a back plate 213 is fixedly installed at the bottom end of the top cover 212. Side plates 214 are fixedly installed on both sides of the feed plate 211 and the back plate 213. A limit post 215 is inserted through one side of the feed plate 211, the back plate 213, and the side plate 214. A spring 216 is inserted through the outside of the limit post 215. A protective plate 217 is fixedly installed at one end of the limit post 215. A spring 218 is fixedly installed inside the top cover 212. A pipe structure is provided at the center of the feed plate 211 for feeding. Plate 211 is fixedly connected to back plate 213 via top cover 212. Side plate 214 is mirror-symmetrically installed on the left and right sides of feed plate 211 and back plate 213. There are three models of protective plate 217, which correspond to the size of back plate 213, side plate 214 and top cover 212 respectively. Protective plate 217 is slidably connected to back plate 213, feed plate 211 and side plate 214 via limiting post 215. Protective plate 217 is also fitted inside top cover 212 and is slidably connected to top cover 212. The top of protective plate 217 inside top cover 212 is fixedly connected to the arc-shaped bottom of spring 218.

[0028] Specifically, the shot inlet pipe 1 has a 90-degree bend structure, which facilitates the entry of steel shot into the shot distribution pipe 222. The top cover 212 restricts the position of the back plate 213 between the back plate 213 and the feed plate 211. A spring 218 inside the top cover 212 restricts the position of the protective plate 217 inside the top cover 212. A limiting post 215 restricts the position of the protective plate 217. The protective plate 217 is made of cast iron and has high hardness. The protective plate 217, whose dimensions match those of the feed plate 211 and the side plate 214, ensures... The feed plate 211, back plate 213, and side plate 214 are protected. The movement direction of the protective plate 217 is restricted by the limiting post 215. At the same time, the spring 216 on the outside of the limiting post 215 can restrict the position of the protective plate 217. When the steel shot hits the protective plate 217, the protective plate 217 can move within a certain range and squeeze the spring 216, so that the kinetic energy of the steel shot is converted into the internal energy of the spring 216, thereby reducing the damage to the protective plate 217 when the steel shot hits the protective plate 217.

[0029] The drive assembly 22, located at the center of the support assembly 21, is used to drive the steel shot to rotate and throw the steel shot out by centrifugal force. The drive assembly 22 includes a bearing 221 fitted inside the feed plate 211. A shot distribution tube 222 is fixedly installed inside the bearing 221. A limiting plate 223 is fixedly installed on the outside of the shot distribution tube 222. A blade 224 is fitted on one side of the limiting plate 223. A rubber plate 225 is fixedly installed on one side of the blade 224. The drive assembly 22 also includes a drive motor 226 fixedly installed on one side of the back plate 213. The surface of the shot distribution tube 222 is provided with a ring-shaped strip-shaped opening structure. The limiting plate 223 is mirror-image from the front and back. The blades 224 are symmetrically installed at both ends of the opening structure of the shot distribution tube 222, and a sliding groove structure is provided on one side of the limiting plate 223. There are eight blades in total, which are installed in a ring on the outside of the shot distribution tube 222 with the center of the shot distribution tube 222 as the reference. The thickness of the inner end of the blade 224 is less than the thickness of the outer end. The inner end of the blade 224 is fitted with the outer side of the shot distribution tube 222. The rubber plate 225 is fixedly installed above the working surface of the blade 224, and the inner end of the rubber plate 225 is an arc surface structure. The end of the arc surface structure of the rubber plate 225 is flush with one side of the opening structure of the shot distribution tube 222. The shaft of the drive motor 226 is fixedly connected to one end of the shot distribution tube 222.

[0030] Specifically, the bearing 221 facilitates the rotation of the shot distribution tube 222, which in turn allows some of the steel shot to remain in contact with the rubber plate 225 when entering the space between the blades 224. The limiting plate 223 restricts the relative position between the blades 224 and the shot distribution tube 222, and drives the blades 224 to rotate under the drive of the shot distribution tube 222. The blades 224 drive the steel shot to rotate around the axis of the shot distribution tube 222, and the centrifugal force of the steel shot during rotation throws the steel shot out. The rubber plate 225 protects the blades 224. The drive motor 226 is model 60TM-01330F5-C, and the drive motor 226 drives the shot distribution tube 222 to rotate. All contents not described in detail in this specification are prior art known to those skilled in the art.

[0031] During operation, the protective plate 217 is made of cast iron and has high hardness. The protective plate 217, whose dimensions match those of the feed plate 211 and side plate 214, protects the feed plate 211, back plate 213, and side plate 214. The movement direction of the protective plate 217 is restricted by the limiting post 215, while the spring 216 on the outside of the limiting post 215 restricts the position of the protective plate 217. When steel shot impacts the protective plate 217, the protective plate 217 can move within a certain range and compress the spring 216, converting the kinetic energy of the steel shot into the internal energy of the spring 216. This reduces the damage to the protective plate 217 caused by the steel shot impact, thus extending its service life. The surface of the shot distribution tube 222 is provided with a ring-shaped perforated structure, and the inner end thickness of the blade 224 is less than... The outer end thickness is such that the inner end of the blade 224 is fitted with the outer side of the shot distribution tube 222. The rubber plate 225 is fixedly installed above the working surface of the blade 224, and the inner end of the rubber plate 225 has an arc-shaped structure. The end of the arc-shaped structure of the rubber plate 225 is flush with one side of the opening structure of the shot distribution tube 222. The shot distribution tube 222 can facilitate the restriction that some steel shot can remain in contact with the rubber plate 225 when steel shot enters the space between the blades 224, so as to reduce the wear caused by the blade 224 impacting the steel shot. In addition, the rubber plate 225 is made of EPDM rubber, which has a fast deformation recovery speed. When the steel shot impacts the surface of the rubber plate 225, the rubber plate 225 can deform to reduce the impact force of the steel shot and recover quickly, thus protecting the blade 224 and improving the service life of the blade 224.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant shot blasting device for a shot blasting machine, comprising a shot inlet pipe (1), characterized in that, The bottom end of the shot inlet pipe (1) is provided with a shot blasting mechanism (2): The support assembly (21) includes a feed plate (211) fixedly installed at the bottom end of the shot inlet pipe (1), a top cover (212) fixedly installed on the top of the feed plate (211), a back plate (213) fixedly installed at the bottom end of the top cover (212), side plates (214) fixedly installed on both sides of the feed plate (211) and the back plate (213), a limit post (215) inserted through one side of the feed plate (211), the back plate (213) and the side plate (214), a spring (216) inserted through the outside of the limit post (215), a protective plate (217) fixedly installed at one end of the limit post (215), and a spring sheet (218) fixedly installed inside the top cover (212). The drive assembly (22) is located at the center of the support assembly (21) and is used to drive the steel shot to rotate and throw the steel shot out by centrifugal force.

2. The wear-resistant shot blasting device for a shot blasting machine according to claim 1, characterized in that: The feed plate (211) has a pipe structure in the center. The feed plate (211) is fixedly connected to the back plate (213) through the top cover (212). The side plate (214) is installed symmetrically on the left and right sides of the feed plate (211) and the back plate (213). The protective plate (217) has three models, which correspond to the size of the back plate (213), the side plate (214), and the top cover (212).

3. The wear-resistant shot blasting device for a shot blasting machine according to claim 1, characterized in that: The protective plate (217) is slidably connected to the back plate (213), the feed plate (211), and the side plate (214) through the limiting post (215). The protective plate (217) is also fitted inside the top cover (212) and is slidably connected to the top cover (212). The top of the protective plate (217) inside the top cover (212) is fixedly connected to the arc-shaped bottom of the spring (218).

4. The wear-resistant shot blasting device for a shot blasting machine according to claim 1, characterized in that: The drive assembly (22) includes a bearing (221) fitted inside the feed plate (211), a pellet distribution tube (222) fixedly installed inside the bearing (221), a limiting plate (223) fixedly installed on the outside of the pellet distribution tube (222), a blade (224) fitted on one side of the limiting plate (223), a rubber plate (225) fixedly installed on one side of the blade (224), and a drive motor (226) fixedly installed on one side of the back plate (213).

5. The wear-resistant shot blasting device for a shot blasting machine according to claim 4, characterized in that: The surface of the pellet tube (222) is provided with a strip-shaped opening structure distributed in a ring. The limiting disk (223) is installed symmetrically at the front and rear ends of the opening structure of the pellet tube (222). A sliding groove structure is provided on one side of the limiting disk (223). There are eight blades (224) in total, which are installed in a ring on the outside of the pellet tube (222) with the center of the pellet tube (222) as the reference.

6. The wear-resistant shot blasting device for a shot blasting machine according to claim 4, characterized in that: The inner end of the blade (224) is thinner than the outer end. The inner end of the blade (224) is fitted with the outer side of the pelletizing tube (222). The rubber plate (225) is fixedly installed above the working surface of the blade (224). The inner end of the rubber plate (225) is an arc-shaped structure. The end of the arc-shaped structure of the rubber plate (225) is flush with one side of the opening structure of the pelletizing tube (222). The shaft of the drive motor (226) is fixedly connected to one end of the pelletizing tube (222).

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