A rotary shot blasting device

Abstract

This utility model discloses a rotary shot blasting device, belonging to the technical field of shot blasting equipment, which solves the problem of jamming during rotation of the hanger in existing shot blasting equipment. It includes a housing, and the hanger includes a connecting plate, a bearing seat, a hook, and a large gear. The top of the connecting plate is connected to a steel wire rope via a connecting lug. The bearing seat is fixed to the bottom of the connecting plate. The top of the hook is rotatably connected to the bearing seat via a bearing. The large gear is fixed to the hook below the bearing seat. A groove extending along the guide rail direction is formed on the top front of the housing. The width of the groove is greater than the diameter of the hook. A drive motor is located on the top of the housing on one side of the bottom of the groove. The output end of the drive motor is connected to a small gear. An electromagnet is mounted on a support frame above the small gear via a bracket. This shot blasting device places the positioning and drive structure of the hanger outside the housing, avoiding the impact of powder on its operation and effectively extending the service life of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of shot blasting equipment technology, and more specifically, to a rotary shot blasting device. Background Technology

[0002] Shot blasting is a mechanical surface treatment process. The principle of shot blasting is to use an electric motor to drive an impeller to rotate and use centrifugal force to throw shot with a diameter of about 0.2 to 3.0 mm onto the surface of the workpiece, so that the surface of the workpiece reaches a certain roughness, making the workpiece more aesthetically pleasing, changing the welding tensile stress of the workpiece to compressive stress, and improving the service life of the workpiece. It is widely used in the processing of engine parts.

[0003] Most shot blasting devices currently on the market are rotary shot blasting structures. For example, patent technology with authorization announcement number CN222874264U discloses an improved hook-type shot blasting device. A hook groove is provided at the top of the housing, and a hook is slidably connected within the hook groove. The top of the hook is rotatably connected to an overhead electric hoist. The hook is connected to a hanging frame assembly, and a central column is vertically connected downwards on the hanging frame assembly. The bottom of the central column is a square column, and a rotating shaft is rotatably connected to the bottom of the housing. A square groove matching the square column is provided on the rotating shaft, and the rotating shaft is connected to a rotary drive assembly. The beneficial effects of this utility model are: Based on the traditional hook-type shot blasting machine, this utility model designs a rotating shaft device at the bottom of the hanging frame that can drive the machine to rotate. Simultaneously, a worm gear power system is matched to the rotating shaft, allowing the hanging frame to rotate during shot blasting operations. This not only improves the shot blasting effect but also increases the number of workpieces that can be shot blasted in a single operation, making it worthy of widespread promotion and use.

[0004] In the existing rotary shot blasting device, after the bracket is moved into the housing, it needs to be lowered into a square groove with a guide angle. This is not only cumbersome to operate, but also causes the powder generated during shot blasting to accumulate in the square groove, resulting in blockage. It needs to be cleaned frequently to continue to be used, which increases the workload.

[0005] Therefore, a new type of rotary shot blasting device needs to be designed to solve the above-mentioned technical problems. Utility Model Content

[0006] The technical problem to be solved by this utility model is to address the above-mentioned shortcomings of the prior art. Its purpose is to provide a rotary shot blasting device that places the positioning and driving structure of the hanger outside the box, so as to avoid the powder affecting its operation and effectively extend the service life of the equipment.

[0007] The technical solution of this utility model is as follows: A rotary shot blasting device includes a housing, a door mounted on the front of the housing via a hinge, a support frame mounted on the top of the housing, a guide rail extending to the front of the housing mounted on the support frame, a crane slidably mounted on the guide rail, a hanger connected to the steel wire rope of the crane, the hanger including a connecting plate, a bearing seat, a hook and a large gear, the top of the connecting plate being connected to the steel wire rope via a connecting lug, the bearing seat being fixed to the bottom of the connecting plate, the top of the hook being rotatably connected to the bearing seat via a bearing, and the large gear being fixed to the hook below the bearing seat. A groove extending along the guide rail direction is provided on the top of the front of the housing, the width of the groove being greater than the diameter of the hook, and a drive motor is provided on the top of the housing on one side of the bottom of the groove, the output end of the drive motor being connected to a small gear, an electromagnet being mounted on the support frame above the small gear via a bracket, when the crane drives the large gear to move to contact the small gear, the electromagnet is in contact with the connecting plate.

[0008] As a further improvement, the inner wall of the groove is provided with a soft brush.

[0009] Furthermore, the output end of the drive motor is connected to a pinion via a reducer.

[0010] Furthermore, the end of the slide near the front of the housing has a trumpet-shaped structure.

[0011] Furthermore, the contact surface between the connecting plate and the electromagnet is a rectangular surface.

[0012] Furthermore, the outer wall of the bearing housing is also fitted with a connecting sleeve via the bearing rotation, and the outer wall of the connecting sleeve is connected to the large gear via multiple connecting rods.

[0013] Furthermore, a sealing ring is provided between the box door and the box body.

[0014] Beneficial effects

[0015] Compared with the prior art, this utility model has the following advantages:

[0016] This shot blasting device, through the installation of a drive motor and a small gear on the top of the outer wall of the housing, and the use of an electromagnet for positioning, allows for the following operation: During operation, the workpiece is suspended on a hook, and then a crane lifts the workpiece so that the upper part of the hook is directly in front of the slide groove. The crane then slides the hook along the guide rail into the slide groove until the large gear and small gear contact. Next, the electromagnet is activated, attracting and fixing the connecting plate, keeping the large and small gears meshed. The housing door is closed, and the drive motor is started, using the small gear to drive the large gear to rotate, thus rotating the workpiece for shot blasting. This shot blasting device places the positioning and drive structure of the hanger outside the housing, preventing powder from affecting its operation and effectively extending the equipment's service life. Furthermore, the use of an electromagnet for positioning the hanger prevents the large and small gears from separating, ensuring continuous operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0020] Figure 4 This is a side view of the structure of the hanging device removed from the box body in this utility model;

[0021] Figure 5 This is a top view of the box structure in this utility model.

[0022] The components are as follows: 1. Housing; 2. Door; 3. Support frame; 4. Guide rail; 5. Overhead crane; 6. Wire rope; 7. Hanger; 8. Slide rail; 9. Drive motor; 10. Pinion; 11. Bracket; 12. Electromagnet; 13. Soft brush; 14. Reducer; 71. Connecting plate; 72. Bearing seat; 73. Hook; 74. Large gear; 75. Connecting ear; 76. Connecting sleeve; 77. Connecting rod. Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.

[0024] See Figure 1-5This utility model discloses a rotary shot blasting device, comprising a housing 1. A door 2 is installed on the front of the housing 1 via a hinge. The housing 1 is a product of the prior art. The housing 1 has a shot blasting mechanism, and its shot blasting principle is the same as that of the prior art, which will not be described in detail here. A support frame 3 is installed on the top of the housing 1. The support frame 3 is a rectangular hollow bracket. A guide rail 4 extending to the front of the housing 1 is installed on the support frame 3. The guide rail 4 is located at the center of the support frame 3. A crane 5 is slidably installed on the guide rail 4. The crane 5 is also a product of the prior art and can lift the workpiece and move it along the guide rail 4. Its working principle is the same as that of the crane in the prior art, which will not be described in detail here. A bracket 7 is connected to the wire rope 6 of the overhead crane 5. The bracket 7 includes a connecting plate 71, a bearing seat 72, a hook 73, and a large gear 74. The top of the connecting plate 71 is connected to the wire rope 6 via a connecting lug 75. The bearing seat 72 is fixed to the bottom of the connecting plate 71. The top of the hook 73 is rotatably connected to the bearing seat 72 via a bearing. The large gear 74 is fixed to the hook 73 below the bearing seat 72, allowing the large gear 74 to rotate relative to the bearing seat 72 and the connecting plate 71. A groove 8 extending along the guide rail 4 is provided on the top front of the housing 1. The groove 8 is located on the top of the overhead crane 5. Directly below the car 5, the width of the slide 8 is greater than the diameter of the hook 73, ensuring that the hook 73 can slide into the slide 8. The top of the box 1 on one side of the bottom of the slide 8 is equipped with a drive motor 9. The output end of the drive motor 9 is connected to a small gear 10. The small gear 10 is long and narrow, which allows the large gear 74 to better engage with the small gear 10. An electromagnet 12 is installed on the support frame 3 above the small gear 10 through a bracket 11. When the car 5 moves the large gear 74 to contact the small gear 10, the electromagnet 12 fits against the connecting plate 71, thus attracting and fixing the connecting plate 71.

[0025] This shot blasting device, by setting a drive motor 9 and a pinion 10 on the top of the outer wall of the housing 1, and setting an electromagnet 12 for positioning, allows the workpiece to be suspended on a hook 73 during operation. A crane 5 then lifts the workpiece so that the upper part of the hook 73 is directly in front of the slide groove 8. The crane 5 then slides the hook along the guide rail 4 into the slide groove 8 until the large gear 74 contacts the pinion 10. Next, the electromagnet 12 is activated, attracting and fixing the connecting plate 71, keeping the large gear 74 and pinion 10 engaged. The housing door 2 is closed, and the drive motor 9 is started. The pinion 10 drives the large gear 74 to rotate, thus rotating the workpiece for shot blasting. This shot blasting device places the positioning and drive structure of the hanger outside the housing, preventing powder from affecting its operation and effectively extending the equipment's service life. Furthermore, the electromagnet positions the hanger, preventing the large and small gears from separating and ensuring continuous operation. It should be noted that in this embodiment, the overhead crane 5, drive motor 9, and electromagnet 12 are all controlled by a remote control handle, and can be manually controlled by pressing the corresponding buttons on the three.

[0026] Preferably, a soft brush 13 is provided on the inner wall of the chute 8. The soft brush 13 can reduce the amount of dust overflow during shot blasting, making production more environmentally friendly, and at the same time, it can also meet the requirement of the hook 73 sliding into the chute 8.

[0027] Preferably, the output end of the drive motor 9 is connected to the pinion 10 through the reducer 14. Specifically, the output end of the drive motor 9 is connected to the input end of the reducer 14, and the pinion 10 is fixed at the output end of the reducer 14 to reduce speed.

[0028] Preferably, the end of the slide groove 8 near the front of the housing 1 has a flared structure, which allows the hook 73 to slide into the slide groove 8 more easily.

[0029] Preferably, the contact surface between the connecting plate 71 and the electromagnet 12 is rectangular. Specifically, both the connecting plate 71 and the electromagnet 12 are rectangular. Such a contact surface can increase the adsorption area and better position the hook 73.

[0030] Preferably, a connecting sleeve 76 is also rotatably mounted on the outer wall of the bearing housing 72 via a bearing. The outer wall of the connecting sleeve 76 is connected to the large gear 74 via multiple connecting rods 77. Since the hook 73 suspends engine parts, the bearing between the bearing housing 72 and the hook 73 can easily be damaged for heavy parts. Therefore, by adding a shaft, connecting sleeve 76, connecting rods 73 and large gear 74 to the outer wall of the bearing housing 72 for secondary connection, the hook 73 can be reinforced to prevent it from loosening. At the same time, it can also ensure that the hook 73 can rotate. Furthermore, the bearing housing 72 is stressed on both the inner and outer walls, resulting in better stress distribution, avoiding stress concentration, and extending service life.

[0031] Preferably, a sealing ring is provided between the door 2 and the body 1. This sealing ring can be installed on the front of the body 1 to reduce the amount of dust overflowing during shot blasting.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.

Claims

1. A rotary shot blasting device, comprising a housing (1), wherein a door (2) is hinged to the front of the housing (1), characterized in that, A support frame (3) is installed on the top of the housing (1). A guide rail (4) extending to the front of the housing (1) is installed on the support frame (3). A crane (5) is slidably installed on the guide rail (4). A hanger (7) is connected to the wire rope (6) of the crane (5). The hanger (7) includes a connecting plate (71), a bearing seat (72), a hook (73), and a large gear (74). The top of the connecting plate (71) is connected to the wire rope (6) through a connecting lug (75). The bearing seat (72) is fixed to the bottom of the connecting plate (71). The top of the hook (73) is rotatably connected to the bearing seat (72) through a bearing. The large gear... (74) A hook (73) is fixed below the bearing seat (72). A groove (8) extending along the direction of the guide rail (4) is provided on the top front of the box (1). The width of the groove (8) is greater than the diameter of the hook (73). A drive motor (9) is provided on the top of the box (1) on one side of the bottom of the groove (8). A small gear (10) is connected to the output end of the drive motor (9). An electromagnet (12) is installed on the support frame (3) above the small gear (10) through a bracket (11). When the crane (5) drives the large gear (74) to move to contact the small gear (10), the electromagnet (12) is in contact with the connecting plate (71).

2. The rotary shot blasting device according to claim 1, characterized in that, The inner wall of the groove (8) is provided with a soft brush (13).

3. The rotary shot blasting device according to claim 1, characterized in that, The output end of the drive motor (9) is connected to the pinion (10) through a reducer (14).

4. The rotary shot blasting device according to claim 1, characterized in that, The end of the slide (8) near the front of the box (1) has a trumpet-shaped structure.

5. A rotary shot blasting device according to claim 1, characterized in that, The contact surface between the connecting plate (71) and the electromagnet (12) is a rectangular surface.

6. A rotary shot blasting device according to any one of claims 1-5, characterized in that, The outer wall of the bearing housing (72) is also fitted with a connecting sleeve (76) via the bearing rotation. The outer wall of the connecting sleeve (76) is connected to the large gear (74) via multiple connecting rods (77).

7. A rotary shot blasting device according to claim 6, characterized in that, A sealing ring is provided between the box door (2) and the box body (1).

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