Shot blasting machine convenient to clean
By designing an easily detachable shot distribution wheel and blade structure, combined with a guide assembly, the problems of inconvenient cleaning and high operating costs of shot blasting machines are solved. This enables rapid cleaning of the shot distribution wheel and individual replacement of the blades, improving the flexibility and efficiency of shot blasting machines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-03
AI Technical Summary
Existing shot blasting machines are inconvenient to clean, the shot distribution wheel is prone to jamming steel balls and the blades are severely worn, resulting in high operating costs and an inability to flexibly adjust the direction of the steel balls being thrown.
The design incorporates an easily detachable shot distribution wheel and blade structure, combined with a guide assembly including a guide plate and an electric telescopic rod, enabling rapid cleaning of the shot distribution wheel and individual replacement of the blades. The direction of the steel ball ejection is adjusted via a motor drive.
It enables convenient cleaning of the shot distribution wheel and individual maintenance of the blades, reduces operating costs, and improves the flexibility and efficiency of shot blasting machines.
Smart Images

Figure CN224074127U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shot blasting machine technology, and in particular to a shot blasting machine that is easy to clean. Background Technology
[0002] A shot blasting machine is a mechanical device that uses high-speed projectiles (such as steel shot, ceramic shot, etc.) to clean, strengthen, or shape the surface of a workpiece. Its core principle is to use centrifugal force or airflow to propel the projectiles at high speed onto the workpiece surface, effectively removing impurities such as oxide scale, rust, and burrs, while simultaneously enhancing the fatigue resistance and wear resistance of the workpiece surface and improving its mechanical properties.
[0003] The core component of a shot blasting machine is the shot blaster, which consists of an impeller, a shot distributor, a directional sleeve, and blades. It utilizes centrifugal force to propel shot at high speed. After entering the casing through the sand inlet pipe, the steel shot enters the chamber of the shot distributor, where it is thrown out by centrifugal force and then accelerated outward by the blades. However, with use, some steel shot can become stuck inside the shot distributor, requiring cleaning. Existing shot blasting machines are not convenient for cleaning, and when the blades wear out significantly, the entire shot distributor and blades must be replaced, increasing operating costs. Furthermore, existing shot blasting machines cannot adjust the direction of the shot ejected from the bottom, making them inflexible in operation. Therefore, further improvements are needed. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a shot blasting machine that is easy to clean.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a shot blasting machine that is easy to clean, comprising a housing, side plates, and a top plate. The side plates are fixed to one side of the housing by bolts, and the top plate is fixed to the top of the housing by bolts. A drive shaft is rotatably connected to the middle of the side of the housing away from the side plates via a bearing. A shot distribution wheel is slidably sleeved on the surface of the drive shaft, and a plurality of grooves are evenly spaced on the surface of the shot distribution wheel. A slot is provided on the outer wall of the shot distribution wheel between two adjacent grooves. A detachable blade is inserted into each slot. A sand inlet pipe is fixed on the side plate near the shot distribution wheel. A guide assembly is installed at the bottom of the inner side wall of the housing.
[0006] Furthermore, a motor is fixed to the side of the housing away from the side plate, and the drive shaft is fixedly connected to the output end of the motor.
[0007] Furthermore, a convex key is fixed on the surface of the drive shaft, and a keyway is provided on the inner sidewall of the ball-distributing wheel, with the convex key engaging inside the keyway.
[0008] Furthermore, a connecting plate is fixed to the outer wall of the ball-distributing wheel near the slot. The connecting plate and the blade both have connecting holes at the same position, and short bolts are connected inside the connecting holes on the connecting plate and the blade.
[0009] Furthermore, the guiding assembly includes a guide plate and an electric telescopic rod. The outer shells of both the guide plate and the electric telescopic rod are hinged to the inner wall of the bottom end of the housing, and the electric telescopic rod is located below the guide plate. The telescopic end of the electric telescopic rod is hinged to the lower surface of the guide plate.
[0010] Furthermore, two mounting plates are fixed to the bottom of the outer side wall of the housing, and mounting holes are provided on the mounting plates.
[0011] The beneficial effects of this utility model are:
[0012] 1. In use, this utility model provides an easy-to-clean shot blasting machine, which includes a housing, side plates, a top plate, a drive shaft, a shot distribution wheel, blades, a motor, and a sand inlet pipe. The top plate and side covers can be removed from the housing, and the shot distribution wheel can be directly removed from the surface of the drive shaft, which facilitates the cleaning of steel balls stuck on the shot distribution wheel. Secondly, each blade can be individually disassembled from the shot distribution wheel, which makes it easy to replace or repair each blade individually, reducing the cost of use.
[0013] 2. When in use, this utility model provides a shot blasting machine that is easy to clean. The guide assembly includes a guide plate and an electric telescopic rod. The electric telescopic rod can drive the guide plate to rotate, thereby guiding the thrown steel balls and changing the range of the thrown steel balls, making the shot blasting machine more flexible to use. Attached Figure Description
[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 : Overall perspective view of this utility model;
[0016] Figure 2 : Overall side sectional view of this utility model;
[0017] Figure 3 : Overall main sectional view of this utility model;
[0018] Figure 4 The present utility model Figure 3 Enlarged view of point A in the middle;
[0019] Figure 5 The present utility model Figure 3 Enlarged view of section B in the middle.
[0020] The attached figures are labeled as follows:
[0021] 1. Housing; 2. Side plate; 3. Top plate; 4. Drive shaft; 41. Raised key; 5. Shot wheel; 51. Groove; 52. Keyway; 53. Slot; 54. Connecting plate; 55. Short bolt; 6. Blade; 7. Motor; 8. Sand inlet pipe; 9. Guide assembly; 91. Guide plate; 92. Electric telescopic rod; 10. Mounting plate. Detailed Implementation
[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] like Figures 1-5 As shown, a shot blasting machine that is easy to clean is disclosed, comprising a housing 1, a side plate 2, and a top plate 3. The side plate 2 is fixed to one side of the housing 1 by bolts, and the top plate 3 is fixed to the top of the housing 1 by bolts. A drive shaft 4 is rotatably connected to the middle of the side of the housing 1 away from the side plate 2 via a bearing. A shot distribution wheel 5 is slidably sleeved on the surface of the drive shaft 4, and a plurality of grooves 51 are evenly spaced on the surface of the shot distribution wheel 5. A slot 53 is provided on the outer wall of the shot distribution wheel 5 between two adjacent grooves 51. A detachable blade 6 is inserted into each slot 53. A sand inlet pipe 8 is fixed on the side plate 2 near the shot distribution wheel 5. A guide assembly 9 is installed at the bottom of the inner side wall of the housing 1.
[0024] A motor 7 is fixed on the side of the housing 1 away from the side plate 2, and the drive shaft 4 is fixedly connected to the output end of the motor 7.
[0025] The motor 7 can directly drive the drive shaft 4 to rotate.
[0026] A key 41 is fixed on the surface of the drive shaft 4, and a keyway 52 is provided on the inner side wall of the ball distribution wheel 5. The key 41 is engaged inside the keyway 52.
[0027] In this embodiment, when installing the shot distribution wheel 5, the keyway 52 on the shot distribution wheel 5 is aligned with the protruding key 41 on the drive shaft 4, and then the shot distribution wheel 5 is directly fitted onto the surface of the drive shaft 4. The protruding key 41 and the keyway 52 play the role of transmitting torque, so that the drive shaft 4 can drive the shot distribution wheel 5 to rotate, thereby driving the blades 6 on the surface of the shot distribution wheel 5 to rotate.
[0028] A connecting plate 54 is fixed on the outer wall of the ball-splitting wheel 5 near the slot 53. The connecting plate 54 and the blade 6 are both provided with connecting holes at the same position. Short bolts 55 are connected to the connecting holes on the connecting plate 54 and the blade 6.
[0029] In this embodiment, when installing the blade 6, after inserting the blade 6 into the slot 53, insert a short bolt 55 into the connecting hole on the connecting plate 54 and the blade 6, and then screw a nut onto the surface of the short bolt 55. Unscrewing the nut and pulling out the short bolt 55 allows the blade 6 to be removed from the slot 53, facilitating the individual replacement of each blade 6.
[0030] The guide assembly 9 includes a guide plate 91 and an electric telescopic rod 92. The outer shells of both the guide plate 91 and the electric telescopic rod 92 are hinged to the inner wall of the bottom end of the housing 1, and the electric telescopic rod 92 is located below the guide plate 91. The telescopic end of the electric telescopic rod 92 is hinged to the lower surface of the guide plate 91.
[0031] The extension and retraction of the electric telescopic rod 92 can drive the guide plate 91 to rotate, so that when the accelerated steel ball hits the surface of the guide plate 91, it can move along the surface of the guide plate 91, thereby changing the direction of the steel ball being thrown.
[0032] Two mounting plates 10 are fixed to the bottom of the outer side wall of the housing 1, and mounting holes are provided on the mounting plates 10. The mounting plates 10 facilitate the installation of the shot blasting machine.
[0033] Working principle: The starting motor 7 drives the drive shaft 4, the shot distribution wheel 5 and the blades 6 to rotate at high speed. After the steel ball enters the housing 1 through the sand inlet pipe 8, the steel ball will fall into the groove 51 on the surface of the shot distribution wheel 5. As the shot distribution wheel 5 rotates at high speed, the steel ball is thrown out from the groove 51. Then, the blades 6 beat the steel ball to accelerate it, causing the steel ball to be thrown downwards. Finally, the steel ball is thrown out along the guide plate 91.
[0034] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A shot blasting machine for facilitating cleaning, comprising a housing (1), a side plate (2) and a top plate (3), characterized in that: The side plate (2) is fixed on one side of the shell (1) by bolts, and the top plate (3) is fixed on the top of the shell (1) by bolts, the middle part of the shell (1) away from the side plate (2) side is rotatably connected with the driving shaft (4) through the bearing, the driving shaft (4) surface is slidably sleeved with the pill dividing wheel (5), and a plurality of grooves (51) are equidistantly arranged on the surface of the pill dividing wheel (5), the outer side wall of the pill dividing wheel (5) and between adjacent two grooves (51) are provided with the insertion groove (53), and the insertion groove (53) is inserted with the detachable blade (6), the side plate (2) is fixed with the sand inlet pipe (8) near the pill dividing wheel (5), and the inner side wall of the shell (1) is provided with the guide assembly (9).
2. A shot blasting machine according to claim 1, characterized in that: The shell (1) is fixed with the motor (7) away from the side plate (2), and the driving shaft (4) is fixedly connected with the output end of the motor (7).
3. The shot blasting machine of easy cleaning according to claim 1, characterized in that: The driving shaft (4) is fixedly connected with the motor (7), and the motor (7) is fixedly connected with the output end of the driving shaft (4).
4. The shot blasting machine of easy cleaning according to claim 1, characterized in that: The driving shaft (4) is fixedly connected with the motor (7), and the motor (7) is fixedly connected with the output end of the driving shaft (4).
5. The shot blasting machine of easy cleaning according to claim 1, characterized in that: The connecting plate (54) and the blade (6) are provided with connecting holes at the same position, and the connecting holes in the connecting plate (54) and the blade (6) are connected with the short bolt (55).
6. The shot blasting machine of easy cleaning according to claim 1, characterized in that: The guide assembly (9) comprises a guide plate (91) and an electric telescopic rod (92), the shells of the guide plate (91) and the electric telescopic rod (92) are hinged to the inner wall of the bottom of the shell (1), and the electric telescopic rod (92) is located below the guide plate (91), and the telescopic end of the electric telescopic rod (92) is hinged to the lower surface of the guide plate (91). The outer side wall of the shell (1) is fixed with two mounting plates (10), and the mounting holes are formed in the mounting plates (10).