Noise reduction device for shot blasting machine

Abstract

The utility model relates to the technical field of shot blasting machines, in particular to a noise reduction device for a shot blasting machine, which comprises a shot blasting machine main body and a noise reduction mechanism for reducing noise, the noise reduction mechanism comprises a rotating shaft, a half gear is fixedly installed on the rotating shaft, the half gear is meshed with a spur rack, the spur rack is fixedly installed on a movable frame, the movable frame is fixedly installed on a piston rod, the piston rod is slidably installed in a fixed cylinder, the fixed cylinder is communicated with the bag body, and the bag body is fixedly installed on the piston rod. The bag body is fixedly connected with a mounting plate, and the mounting plate is fixedly connected with an elastic belt. According to the utility model, the shots are buffered through the elastic belts, the elastic belts can guide the shots, and when the two elastic belts are separated, the shots can fall into the circulating device, so that the purposes of reducing vibration and reducing noise are achieved.

Description

Technical Field

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

[0002] Shot blasting machine is a casting equipment that uses high-speed shot to clean or strengthen the surface of castings. It can simultaneously remove sand, cores and clean castings. Compared with other surface treatment technologies, it is faster and more efficient, and can be used for casting processes that have been partially retained or stamped. However, the noise generated by shot blasting machine during operation can affect the surrounding environment and the health of workers.

[0003] Existing technologies, such as the utility model disclosed in patent publication number CN221891709U, disclose a shot blasting machine with shock absorption and noise reduction functions. This machine includes a support plate, with the top of the support plate fixedly connected to the shot blasting machine body. A dust suction pipe is fixedly connected to the front of the shot blasting machine body, and a processing box is fixedly connected to the output end of the dust suction pipe. Multiple filters are installed inside the processing box. This utility model, by setting up a buffer and shock absorption mechanism, causes the connecting rod on the hinge plate surface to press down due to the vibration generated by the shot blasting machine body. This causes the damping sleeve to slide on the slide rod surface, compressing the spring. Simultaneously, the piston rod extends and retracts, pushing the damping plate to slide inside the buffer box, allowing hydraulic oil to flow inside the holes, thereby achieving a buffering effect, reducing the swaying amplitude of the shot blasting machine body, and improving the processing effect of parts.

[0004] This device can reduce the shaking amplitude of the shot blasting machine body, thereby reducing the noise generated when the shot blasting machine is working. However, it will also generate noise when the shot comes into contact with the inner wall of the shot blasting machine after it is sprayed out, which will affect the health of the workers.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of this utility model is to provide a noise reduction device for shot blasting machines that can effectively solve the above-mentioned technical problems.

[0007] To achieve the purpose of this utility model, the following technical solution is adopted: a noise reduction device for a shot blasting machine, comprising: a shot blasting machine body and a noise reduction mechanism for reducing noise;

[0008] The noise reduction mechanism includes: a rotating shaft, on which a half gear is fixedly mounted, the half gear meshing with a spur rack, the spur rack being fixedly mounted on a movable frame, the movable frame being fixedly mounted on a piston rod, the piston rod being slidably mounted in a fixed cylinder, the fixed cylinder being connected to a bladder body, a mounting plate being fixedly connected to the bladder body, and an elastic band being fixedly connected to the mounting plate.

[0009] Furthermore, the two spur racks are located on both sides of the half gear, and the teeth on the half gear are concentrated on one-quarter of the side surface of the half gear.

[0010] Furthermore, a transmission belt is movably mounted on the rotating shaft, and the transmission belt is driven by the central shaft.

[0011] Furthermore, the two half-gears mesh with the spur racks on different sides at the same time.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a noise reduction device for a shot blasting machine, which uses an elastic band to buffer the shot and guide the shot. When the two elastic bands separate, the shot can fall into the circulation device, thereby reducing vibration and noise. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] Figure 1 This is a structural schematic diagram of a noise reduction device for a shot blasting machine according to the present invention.

[0015] Figure 2 This is a cross-sectional structural diagram of a noise reduction device for a shot blasting machine according to the present invention.

[0016] Figure 3 This is a structural schematic diagram of the sound insulation component in this utility model.

[0017] Figure 4 This is a schematic diagram of the noise reduction mechanism in this utility model.

[0018] In the diagram: 1. Shot blasting machine body; 2. Door; 3. Track; 4. Sound insulation component; 5. Circulation device; 6. Feeding device; 7. Shot blasting device; 8. Noise reduction mechanism; 9. Transmission belt; 10. Central shaft; 41. Housing; 42. Airbag; 43. Connecting pipe; 81. Elastic belt; 82. Fixing plate; 83. Mounting plate; 84. Bag body; 85. Fixing cylinder; 86. Piston rod; 87. Moving frame; 88. Half gear; 89. Rotating shaft. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0020] In the description of this utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. When a mechanism is referred to as being "fixed to" another mechanism, it can be directly on the other mechanism or there may be an intervening mechanism. When a mechanism is considered to be "connected" to another mechanism, it can be directly connected to the other mechanism or there may be an intervening mechanism at the same time. When a mechanism is considered to be "set on" another mechanism, it can be directly set on the other mechanism or there may be an intervening mechanism at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0021] like Figures 1 to 4 As shown, the present invention provides a noise reduction device for a shot blasting machine, comprising: a shot blasting machine body 1, and a noise reduction mechanism 8 for reducing noise.

[0022] A box door 2 is rotatably installed on the main body 1 of the shot blasting machine, and the box door 2 is aligned with the track 3. The track 3 is located in the shot blasting chamber inside the main body 1 of the shot blasting machine. A circulation device 5 is installed at the bottom of the main body 1 of the shot blasting machine. The circulation device 5 is connected to the feeding device 6, and the feeding device 6 is connected to the shot blasting device 7. Sound insulation components 4 are installed on both sides of the shot blasting chamber.

[0023] The noise reduction mechanism 8 includes: a rotating shaft 89, which is rotatably mounted on the shot blasting machine body 1; a transmission belt 9 is movably mounted on the rotating shaft 89; the transmission belt 9 is driven by a central shaft 10; the central shaft 10 is a component of the circulation device 5; the central shaft 10 rotates during the operation of the circulation device 5; a half gear 88 is fixedly mounted on the rotating shaft 89; the half gear 88 meshes with a spur rack; the spur rack is fixedly mounted on a movable frame 87, and the two spur racks are symmetrically located on the movable frame 87, with the two spur racks located on both sides of the half gear 88; and the teeth of the half gear 88 are concentrated on one-quarter of the side surface of the half gear 88, so that the half gear 88... During rotation, the movable frame 87 can be driven to reciprocate. The movable frame 87 is fixedly installed on the piston rod 86, and the piston rod 86 is slidably installed in the fixed cylinder 85. The fixed cylinder 85 is fixedly installed on the inner wall of the shot blasting chamber. The fixed cylinder 85 is connected to the bladder 84. When the piston rod 86 slides into the fixed cylinder 85, it can force the air in the fixed cylinder 85 into the bladder 84, causing the bladder 84 to stretch. The bladder 84 is fixedly connected to the mounting plate 83, and the mounting plate 83 is slidably installed on the inner wall of the shot blasting chamber. An elastic band 81 is fixedly connected to the mounting plate 83, and the other end of the elastic band 81 is fixedly connected to the fixed plate 82, which is fixedly installed on the inner wall of the shot blasting chamber.

[0024] The elastic band 81 is made of rubber.

[0025] Furthermore, the two half gears 88 mesh with the spur racks on different sides at the same time. During the rotation of the two half gears 88 in the same direction, the spur racks on both sides of the half gears 88 move in opposite directions, causing the two moving frames 87 to move towards or away from each other.

[0026] The elastic bands 81 buffer the projectiles, and the two elastic bands 81 can guide the projectiles. When the two elastic bands 81 separate, the projectiles can fall into the circulation device 5, thereby reducing vibration and noise. When the circulation device 5 is working, the central shaft 10 rotates and drives the transmission belt 9 to run. The transmission belt 9 drives the rotating shaft 89 to rotate. The two rotating shafts 89 rotate in the same direction and drive the moving frame 87 to move towards or away from each other. The moving frame 87 drives the piston rod 86 to slide in the fixed cylinder 85, causing the airbag 42 to stretch and contract intermittently. This allows the airbag 42 to drive the mounting plate 83 to move. The mounting plate 83 intermittently pulls the elastic bands 81. When the two mounting plates 83 contact each other, the two elastic bands 81 can seal the inlet on the circulation device 5. When the elastic bands 81 separate, the projectiles are guided by the elastic bands 81 and roll into the circulation device 5.

[0027] The sound insulation component 4 consists of a housing 41, an airbag 42 mounted on the housing 41, and a connecting pipe 43 fixedly mounted on the housing 41. The housing 41 is fixedly mounted in the openings on both sides of the shot peening chamber. The connecting pipe 43 is connected to the airbag 42, and the connecting pipe 43 is connected to an external air pump. The air pump inflates the airbag 42, causing the airbag 42 to expand and seal the openings on both sides of the shot peening chamber.

[0028] Working principle:

[0029] Open the box door 2 and place the casting on the track 3. Start the shot blasting machine to polish the casting. The shot is thrown out from above the track 3 to polish the casting. Then, it falls onto the elastic belt 81 through the through hole on the track 3. The elastic belt 81 buffers the shot and absorbs the energy of the shot falling, causing the shot to roll down along the elastic belt 81. The rotation of the central shaft 10 drives the transmission belt 9 to run. The transmission belt 9 drives the rotating shaft 89 to rotate. The rotating shaft 89 drives the half gear 88 to rotate. The half gear 88 drives the rack to move. The rack drives the moving frame 87 to move. The two moving frames 87 move in opposite directions. The moving frame 87 drives the piston rod 86 to slide in the fixed cylinder 85, causing the airbag 42 to stretch and contract intermittently. This allows the airbag 42 to drive the mounting plate 83 to move. The mounting plate 83 intermittently pulls the elastic belt 81. When the two elastic belts 81 separate, the shot is guided by the elastic belt 81 to roll down into the circulation device 5, thereby reducing vibration and noise and improving the practicality of the device.

[0030] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A noise reduction device for a shot blasting machine, characterized in that, Include: Shot blasting machine main body, the noise reduction mechanism of reducing noise; The noise reduction mechanism includes: rotating shaft, the half gear is fixedly installed on the rotating shaft, the half gear is engaged with the straight rack, the straight rack is fixedly installed on the moving frame, the moving frame is fixedly installed on the piston rod, the piston rod is slidingly installed in the fixed cylinder, the fixed cylinder is communicated with the capsule, the capsule is fixedly connected with the mounting plate, and the mounting plate is fixedly connected with the elastic belt.

2. The noise reduction device for a shot blasting machine according to claim 1, characterized in that Two straight racks are located on both sides of the half gear, and the teeth on the half gear are concentratedly distributed on one fourth side surface of the half gear.

3. The noise reduction device for a shot blasting machine according to claim 1, characterized in that, The transmission belt is movably installed on the rotating shaft, and the transmission belt is driven to run by the center shaft.

4. The noise reduction device for a shot blasting machine according to claim 2, characterized in that Two half gears are engaged with straight racks on different sides at the same time.

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