An adjustable blasting machine

Abstract

This utility model relates to the field of shot blasting machine technology and discloses an adjustable shot blasting machine, including a machine body for shot blasting. The bottom of the machine body is equipped with a foot pad structure for adjusting the angle of the machine body relative to the ground. The foot pad structure includes a high foot pad structure located at the front end of the machine body and a low foot pad structure located at the rear end of the machine body. This utility model uses the high and low foot pad structures to create a 0.65-degree upward tilt angle on the machine body. Then, the anode steel claw is inserted into the machine body for shot blasting and rust removal. Because the machine body is tilted backward, even with a hook for hoisting, the anode steel claw, fixed inside the machine body, maintains a vertically downward angle under gravity. At this time, the machine body is tilted upward at 0.65°, and the corresponding angle of the internal nozzle also changes. This allows for shot blasting and rust removal of the dead corners at the edges of the anode steel claw, achieving the beneficial effect of adjusting the shot blasting surface to comprehensively remove rust from irregularly shaped components.

Description

Technical Field

[0001] This utility model relates to the field of shot blasting machine technology, specifically to a shot blasting machine with adjustable spray surface. Background Technology

[0002] Shot blasting machines are devices that use high-speed shot blasting equipment to clean or strengthen the surface of workpieces. They are widely used for removing sand, oxide scale, burrs, and rust from workpiece surfaces, as well as for surface strengthening. Hook-type shot blasting machines are a type of shot blasting machine. Existing hook-type shot blasting machines include a shot blasting chamber, a shot blasting equipment, and a hook. The shot blasting equipment is located on the side wall of the shot blasting chamber, and a notch is provided on the top of the shot blasting chamber for the hook to pass through. The hook lifts the workpiece and enters the shot blasting chamber through the notch. For example, the hook-type shot blasting machine with model number Q3740 uses the above-mentioned feeding method.

[0003] Using a hook for feeding is very convenient for large workpieces. For example, a hook-type shot blasting machine with the prior art publication number CN106625289B adopts a structure with two sets of hooks supporting each other and a sealing baffle structure, which can completely cover the gap above the shot blasting chamber, with good sealing effect, no pollution to the workshop environment, and can realize automated loading and unloading of workpieces. However, because there is a hook structure inside the shot blasting machine for lifting workpieces, the workpieces that need to be rusted must be kept in a vertical state under the action of gravity for shot blasting. For some irregularly shaped workpieces, such as structural anode steel claws, the multiple rolled round steels at the bottom and the rolled crossbeams at the top of the structural anode steel claws are combined into a claw-shaped structure. This means that when the shot blasting machine is shot blasting the structural anode steel claws, the corners at the intersection of the rolled round steels and the rolled crossbeams cannot be covered. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an adjustable shot blasting machine, which has the advantage of being able to adjust the shot blasting surface to comprehensively remove rust from irregularly shaped components, thus solving the aforementioned technical problems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: an adjustable shot blasting machine, comprising a machine body for shot blasting, a hook assembly located at the top of the machine body, and a foot pad structure installed at the bottom of the machine body for adjusting the angle of the machine body relative to the ground;

[0008] The foot pad structure includes a high foot pad structure located at the front of the aircraft body and a low foot pad structure located at the rear of the aircraft body. The height of the low foot pad structure is 40%-45% of the height of the high foot pad structure. The difference in height between the two structures creates an upward tilt angle of 0.6-0.7 degrees relative to the ground, with the front of the aircraft body being higher than the rear.

[0009] Preferably, the high-foot structure is a block structure with a height of 10 centimeters, and the low-foot structure is a block structure with a height of 4 centimeters.

[0010] Preferably, when the height of the high foot structure is 10 centimeters and the height of the low foot structure is 4 centimeters, the difference in height between the two results in a 5.71-degree drop angle between the machine body and the ground.

[0011] Preferably, the high-foot structure includes a trapezoidal groove formed on the bottom surface of the machine body. The trapezoidal groove is lower at the front and higher at the back, and a trapezoidal block is slidably connected to its inner side. The top of the trapezoidal block is inclined and fits into the trapezoidal groove. A grounding block is connected to the bottom of the trapezoidal block. When the trapezoidal block is located at the rear end of the trapezoidal groove, the grounding block and the low-foot structure are on the same horizontal line. When the trapezoidal block is located at the front end of the trapezoidal groove, the grounding block and the low-foot structure form a drop angle of 5.71 degrees relative to the ground.

[0012] Preferably, the rear wall of the trapezoidal block is also connected to a hydraulic cylinder, the output end of the hydraulic cylinder is fixed to the rear wall of the trapezoidal block with bolts, and the hydraulic cylinder itself is hinged to the bottom surface of the machine body through a rotating shaft.

[0013] Preferably, the hook assembly further includes a following structure, which includes arc-shaped grooves formed on both sides of the machine body, with rollers slidingly connected inside the arc-shaped grooves, and a vertical rod fixedly connected to the axis of the rollers. The vertical rods are vertically and upwardly fixed to the two sides of the hook assembly.

[0014] Compared with the prior art, this utility model provides a shot blasting machine with an adjustable spray surface, which has the following beneficial effects:

[0015] 1. This utility model uses a high-foot structure and a low-foot structure to create an upward tilt angle of 0.65 degrees for the machine body, as shown in the instruction manual. Figure 2 As shown, the hook assembly is not directly connected to the machine body. Instead, the hook is aligned with the machine body's hatch using a track alignment method. Then, the anode steel claw is sent into the machine body for shot blasting. Since the machine body is tilted backward, even though the anode steel claw is hoisted by the hook, it still maintains a vertical downward angle under the action of gravity. At this time, the machine body is tilted upward at 0.65°, and the corresponding internal nozzles also undergo a relative angle change. This allows for shot blasting to remove rust from the dead corners of the anode steel claw's edges, achieving the beneficial effect of adjusting the shot blasting surface to comprehensively remove rust from irregularly shaped components.

[0016] 2. This utility model adds a high-foot structure and a low-foot structure between the machine body and the foundation, which is equivalent to adding a "spring" to the rigid connection. This greatly reduces the stiffness of the entire support system. The excitation frequency generated by the shot blasting machine inside the machine body no longer matches the new, lower system natural frequency, thus effectively avoiding the resonance zone and fundamentally eliminating resonance, achieving the beneficial effect of reducing the resonance generated by the shot blasting machine during operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the anode steel claw described in the background art of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0019] Figure 3 This is a schematic diagram of the normal structure of the body in Embodiment 2 of this utility model;

[0020] Figure 4 This is a schematic diagram of the upper view of the body structure in Embodiment 2 of this utility model;

[0021] Figure 5 This is a schematic diagram of the bottom surface of the body structure in Embodiment 2 of this utility model.

[0022] The components are: 1. machine body; 2. high-foot structure; 3. low-foot structure; 4. trapezoidal groove; 401. trapezoidal block; 5. grounding block; 6. hydraulic cylinder; 7. arc groove; 701. roller; 8. vertical rod. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5 An adjustable shot blasting machine includes a body 1 for shot blasting, a hook assembly located at the top of the body 1, and a foot pad structure installed at the bottom of the body 1 for adjusting the angle of the body 1 relative to the ground.

[0025] The foot pad structure includes a high foot pad structure 2 located at the front of the body 1 and a low foot pad structure 3 located at the rear of the body 1. The height of the low foot pad structure 3 is 40%-45% of the height of the high foot pad structure 2. The difference in height between the two causes the body 1 to have a front-high and rear-low elevation difference angle of 0.6-0.7 degrees relative to the ground.

[0026] Example 1

[0027] Traditional hook-type shot blasting machines require docking of the hook assembly, so they are generally fixed at all four corners to ensure the centering effect of the hook assembly during material feeding. However, because the anode steel claws are irregularly shaped, gaps exist at the junctions of these irregular structures, as shown in the instruction manual. Figure 1 As shown, even with multiple nozzles, a conventional shot blasting machine cannot reach the dead corners of the crevices. By fixing the high foot structure 2 to the front end of the machine body 1 and the low foot structure 3 to the rear end of the machine body 1, where the high foot structure 2 is 10cm and the low foot structure 3 is 4cm, the difference in height between the two is calculated using the tangent value of the trigonometric function:

[0028] Given that the height of the padding in front of the shot blasting machine is 10cm and the height of the padding behind it is 4cm, the height difference between the front and rear is (Δh=10-4=6cm);

[0029] Let the horizontal distance between the front and rear of the shot blasting machine be (L). The external dimensions of the existing Q3740 shot blasting machine are 530x530x500, then L=530;

[0030] According to the definition of trigonometric functions, in a right triangle, the tangent (tanθ) is equal to the ratio of the opposite side to the adjacent side. In the inclined plane formed by a shot blasting machine, the height difference (Δh) is the opposite side, and the horizontal distance (L) is the adjacent side. Therefore, the tangent of the inclination angle (θ) is...

[0031] To find the tilt angle (θ), we need to... Take the arctangent on both sides, that is

[0032] The horizontal distance between the front and back of the shot blasting machine (L=530cm) is then The calculator yields (θ = arctan(0.01132) ≈ 0.65°);

[0033] In summary, the angle of change of the shot blasting machine relative to the horizontal plane is: Where (L) is the horizontal distance before and after the shot blasting machine.

[0034] By using the high-foot structure 2 and the low-foot structure 3, the body 1 is tilted upwards at a 0.65-degree angle, as shown in the instruction manual. Figure 2As shown, the hook assembly is not directly connected to the machine body 1. Instead, the hook is aligned with the hatch of the machine body 1 using a track alignment method. Then, the anode steel claw is sent into the inside of the machine body 1 for shot blasting. Since the machine body is tilted backward, even though the anode steel claw is hoisted by the hook, it still maintains a vertical downward angle under the action of gravity. At this time, the machine body 1 is tilted upward at 0.65°. Correspondingly, the internal nozzle also undergoes a relative angle change, which enables shot blasting to remove rust from the dead corners of the edge of the anode steel claw.

[0035] Example 2

[0036] Furthermore, since 0.65 degrees is the angle at which the anode steel claw performs shot blasting and rust removal within the body 1 of the shot blasting machine, and other irregularly shaped workpieces have different sizes and different dead angles, in order to enable other irregularly shaped workpieces to also undergo comprehensive shot blasting and rust removal, instead of spending huge sums of money to improve the nozzles inside the shot blasting machine, a further improvement is proposed here. The original block-shaped high-foot structure 2 is removed, and a trapezoidal groove 4 is opened in its original area. Since the trapezoidal groove 4 is a groove that is lower in the front and higher in the back, the more the trapezoidal block 401 moves forward in the groove, the more of itself is exposed outside the trapezoidal groove 4, and the height of the trapezoidal block 401 increases until it reaches the front end of the trapezoidal groove 4. At this time, the height of the trapezoidal block 401 reaches its maximum value, forming a greater drop than in the first embodiment. Similarly, the upward tilt angle of the body 1 is greater, thereby changing the angle of other irregularly shaped workpieces and the nozzles inside the body 1.

[0037] Furthermore, since there are currently shot blasting machines on the market that integrate the hook assembly and the machine body 1, in order to prevent the integrated shot blasting machine from damaging the hook assembly when tilting upwards, arc-shaped grooves 7 are opened on both sides of the machine body 1. The curvature of the arc-shaped grooves 7 corresponds to the angle of tilting the machine body 1 upwards. Whenever the high foot structure 2 is lifted, the corresponding roller 701 rolls inside the arc-shaped groove 7 under the action of gravity to maintain its own balance. The corresponding vertical rod 8 can always remain vertically upwards connected to the hook assembly, thereby stabilizing the hook assembly.

[0038] Furthermore, when the machine body 1 is working, the internal shot blaster, with its high-speed rotating impeller, is a powerful vibration source that generates a periodic, fixed-frequency excitation force. When the excitation frequency generated by the shot blaster is very close to or equal to the natural frequency of the shot blasting machine and its foundation, resonance will occur. Existing shot blasting machines are directly and rigidly connected to the concrete foundation via anchor bolts. In this case, the natural frequency of the entire system is very high because the concrete foundation has extremely high rigidity. By adding a high-foot structure 2 and a low-foot structure 3 between the machine body 1 and the foundation, it is equivalent to adding a "spring" to the rigid connection. This greatly reduces the rigidity of the entire support system, and the excitation frequency generated by the shot blaster inside the machine body 1 no longer matches the new, lower natural frequency of the system, thereby effectively avoiding the resonance zone and fundamentally eliminating resonance. Regarding the internal structure of the shot blasting machine body 1, the background section of this application has already disclosed in detail that it is a hook-type shot blasting machine of model Q3740. Therefore, this application will not elaborate further on the internal structure and operating principle of the shot blasting machine and the hook assembly.

[0039] During use, by using the high-foot structure 2 and the low-foot structure 3, the body 1 is tilted upwards at a 0.65-degree angle, as shown in the instruction manual. Figure 2 As shown, the hook assembly is not directly connected to the machine body 1. Instead, the hook is aligned with the hatch of the machine body 1 using a track alignment method. Then, the anode steel claw is sent into the inside of the machine body 1 for shot blasting. Since the machine body is tilted backward, even though the anode steel claw is hoisted by the hook, it still maintains a vertical downward angle under the action of gravity. At this time, the machine body 1 is tilted upward at 0.65°. Correspondingly, the internal nozzle also undergoes a relative angle change, which enables shot blasting to remove rust from the dead corners of the edge of the anode steel claw.

[0040] 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. An adjustable shot blasting machine, comprising a body (1) for shot blasting, and a hook assembly located at the top of the body (1), characterized in that: The bottom of the body (1) is equipped with a foot pad structure for adjusting the angle of the body (1) relative to the ground; The foot pad structure includes a high foot pad structure (2) set at the front end of the body (1) and a low foot pad structure (3) set at the rear end of the body (1). The height of the low foot pad structure (3) is 40%-45% of the height of the high foot pad structure (2). The difference in height between the two makes the body (1) higher in the front and lower in the back, forming an upward tilt angle of 0.6 degrees-0.7 degrees relative to the ground.

2. The shot blasting machine with adjustable spray surface according to claim 1, characterized in that: The high-foot structure (2) is a block structure with a height of 10 centimeters, and the low-foot structure (3) is a block structure with a height of 4 centimeters.

3. The shot blasting machine with adjustable spray surface according to claim 2, characterized in that: When the height of the high foot structure (2) is 10 cm and the height of the low foot structure (3) is 4 cm, the difference in height between the two causes the body (1) to have a drop angle of 5.71 degrees relative to the ground.

4. The shot blasting machine with adjustable spray surface according to claim 1, characterized in that: The high-foot structure includes a trapezoidal groove (4) on the bottom surface of the body (1). The trapezoidal groove (4) is lower in the front and higher in the back, and a trapezoidal block (401) is slidably connected to the inner side. The top of the trapezoidal block (401) is inclined and fits into the trapezoidal groove (4). The bottom of the trapezoidal block (401) is connected to a grounding block (5). When the trapezoidal block (401) is located at the rear end of the trapezoidal groove (4), the grounding block (5) and the low-foot structure (3) are on the same horizontal line. When the trapezoidal block (401) is located at the front end of the trapezoidal groove (4), the grounding block (5) and the low-foot structure (3) form a drop angle of 5.71 degrees relative to the ground.

5. The shot blasting machine with adjustable spray surface according to claim 4, characterized in that: The rear wall of the trapezoidal block (401) is also connected to a hydraulic cylinder (6). The output end of the hydraulic cylinder (6) is fixed to the rear wall of the trapezoidal block (401) with bolts, and the hydraulic cylinder (6) itself is hinged to the bottom surface of the machine body (1) through a rotating shaft.

6. The shot blasting machine with adjustable spray surface according to claim 5, characterized in that: The hook assembly also includes a following structure, which includes arc-shaped grooves (7) formed on both sides of the body (1), with rollers (701) sliding inside the arc-shaped grooves (7), and vertical rods (8) fixedly connected to the axis of the rollers (701). The vertical rods (8) are vertically and upwardly fixed to the two sides of the hook assembly.

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