Crawler-type surface polishing machine

Abstract

The utility model provides a crawler-type surface blasting machine, which comprises a shot blasting machine body, and a pretreatment structure is fixedly arranged at a feed port of the shot blasting machine body, the crawler-type surface blasting machine relates to the technical field of shot blasting machines, and is characterized in that the pretreatment structure is arranged at the feed port of the shot blasting machine; effective pretreatment of materials before the materials enter the shot blasting process is achieved, damage of large impurities and burrs to key components such as a shot blasting device and a crawler belt is reduced, the service life of equipment is prolonged, abrasion of abrasive materials is reduced, the multiple buffering inclined plates which are alternately and symmetrically arranged left and right are contained in the pretreatment structure, the materials can slowly fall, and the service life of the equipment is prolonged. And damage caused by direct impact is avoided. In the falling process, high-pressure air blown out by the cleaning unit accurately acts on the surfaces of the materials, large impurities and burrs are effectively blown off, in addition, the driving unit drives the air injection box to slightly rotate in a reciprocating mode, the air blowing area is further increased, and it is ensured that the materials are comprehensively pretreated before entering the shot blasting process.

Description

Technical Field

[0001] This utility model relates to the field of shot blasting machine technology, and in particular to a tracked shot blasting machine. Background Technology

[0002] Tracked shot blasting machine, as a high-efficiency surface treatment equipment, works by using a high-speed rotating shot blaster to propel abrasive materials (such as steel shot and steel grit) onto the surface of the workpiece at extremely high speed. Through the impact and friction of the abrasive materials, it effectively removes impurities such as rust, oxide scale, and burrs from the workpiece surface, thereby achieving the purpose of cleaning and strengthening the surface.

[0003] However, existing tracked shot blasting machines face a problem during the feeding process: the material itself may carry large impurities and burrs. These impurities, upon entering the machine, not only significantly increase the cleaning burden inside the equipment but may also cause direct mechanical damage to critical internal structures such as the shot blaster and tracks, leading to equipment failure and a significant increase in maintenance costs. Furthermore, the abrasive gradually wears down during the cleaning process, and large impurities on the workpiece surface significantly accelerate this wear process, shortening the abrasive's lifespan, reducing cleaning efficiency, and further increasing the equipment's operating costs. Summary of the Invention

[0004] The purpose of this invention is to provide a tracked shot blasting machine that can solve the problem of large impurities and burrs that may be carried by the materials themselves. When these impurities enter the cleaning machine, they not only significantly increase the cleaning burden inside the equipment, but may also cause direct mechanical damage to key internal structures such as the shot blaster and track, thereby leading to equipment failure and significantly increasing maintenance costs.

[0005] This utility model provides a tracked surface blasting machine, including a shot blasting machine body. A pretreatment structure is fixedly installed at the feed inlet of the shot blasting machine body. The pretreatment structure includes a pretreatment box, multiple buffer ramps, a cleaning unit, and a drive unit. The pretreatment box is fixedly installed on the top of the shot blasting machine body. A feed inlet is fixedly installed on the top of the pretreatment box, and a discharge port is fixedly installed on the bottom of the pretreatment box. The discharge port is connected to the feed inlet of the pretreatment box. Multiple buffer ramps are fixedly installed on the left and right sides of the pretreatment box from top to bottom in an alternating left-right symmetrical manner. A cleaning unit is connected to the bottom of the left buffer ramp, and a drive unit is connected to the cleaning unit.

[0006] Preferably, the cleaning unit includes a support box, an air inlet pipe, a distribution pipe, two sets of bearing seats, two first conveying pipes, two second conveying pipes, and two jet boxes. The support box is fixedly installed on the left side outside the pretreatment box. The air inlet pipe is fixedly inserted through the left side of the support box. The distribution pipe is fixedly connected to one end of the air inlet pipe. The two sets of bearing seats are respectively fixedly installed at the bottom of two corresponding buffer inclined plates. The two first conveying pipes and the two second conveying pipes are respectively rotatably connected to the two sets of bearing seats. The two first conveying pipes are rotatably connected to the left side of the pretreatment box. One end of the two first conveying pipes is rotatably connected to the distribution pipe. The two jet boxes are respectively fixedly installed between the two first conveying pipes and the two second conveying pipes. Each jet box has evenly spaced jet holes at its bottom. The drive unit is connected to the two first conveying pipes.

[0007] Preferably, the drive unit includes a motor, a first sprocket, a second sprocket, and a chain. The motor is fixedly installed on the left side outside the pretreatment box. The first sprocket is fixedly installed on the drive end of the motor. The two second sprockets are respectively fixedly installed on the outer walls of the two first conveying pipes. The first sprocket and the two second sprockets are connected by a chain.

[0008] Preferably, the first conveying pipe and the distribution pipe are connected by a sealed bearing, the outer ring of the sealed bearing is fixedly connected to the distribution pipe, and the inner ring of the sealed bearing is interference-fitted with the outer wall of the conveying pipe.

[0009] Preferably, two connecting seats are fixedly provided between the top and bottom of the distribution pipe and the support box.

[0010] Preferably, the inclination angle of the buffer ramp is 30 degrees.

[0011] Preferably, each of the buffer ramps has multiple protrusions fixedly provided on its top.

[0012] Preferably, the diameter of the first sprocket is larger than the diameter of the second sprocket.

[0013] This invention provides an improved tracked surface blasting machine, which, compared with existing technologies, has the following improvements and advantages: By incorporating a pretreatment structure at the feed inlet of the shot blasting machine, this invention achieves effective pretreatment of materials before they enter the shot blasting process. This reduces damage to key components such as the shot blaster and track caused by large impurities and burrs, extending the equipment's service life and reducing abrasive wear. The pretreatment structure includes multiple alternating, symmetrical buffer ramps that allow the material to fall slowly, avoiding damage caused by direct impact. During the fall, the high-pressure air blown by the cleaning unit precisely acts on the material surface, effectively blowing off large impurities and burrs. Furthermore, the drive unit drives the air jet box to rotate slightly back and forth, further increasing the blowing area and improving the cleaning effect, ensuring comprehensive pretreatment of the material before it enters the shot blasting process. The protrusions on the buffer ramps not only cause the material to tumble during fall, increasing the cleaning area, but also generate vibration during tumbling, further promoting the removal of impurities. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of the pretreatment structure of this utility model;

[0017] Figure 3 This is a bottom view of the jet box, first air supply pipe, second air supply pipe, distribution pipe, and first sprocket of this utility model.

[0018] Figure 4 This is a side view of the drive assembly of this utility model.

[0019] Figure 5 This is an isometric structural diagram of the buffer ramp and the protrusion of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Shot blasting machine body; 2. Pretreatment structure; 21. Pretreatment box; 22. Buffer inclined plate; 23. Cleaning unit; 23-1. Support box; 23-2. Air inlet pipe; 23-3. Distribution pipe; 23-4. Bearing seat; 23-5. First conveying pipe; 23-6. Two second conveying pipes; 23-7. Air jet box; 24. Drive unit; 24-1. Motor; 24-2. First sprocket; 24-3. Second sprocket; 24-5. Chain; 25. Connecting seat; 26. Protrusion. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 of this utility model.

[0024] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figure 1-5This utility model provides a technical solution: a tracked surface blasting machine, including a shot blasting machine body 1. A pretreatment structure 2 is fixedly installed at the feed inlet of the shot blasting machine body 1. The pretreatment structure 2 can pre-treat large impurities and burrs that may be carried on the surface of the material to be blasted. The pretreatment structure 2 includes a pretreatment box 21, multiple buffer inclined plates 22, a cleaning unit 23, and a drive unit 24. The pretreatment box 21 is fixedly installed on the top of the shot blasting machine body 1. A feed inlet is fixedly installed on the top of the pretreatment box 21, and a discharge port is fixedly installed on the bottom of the pretreatment box 21. The feed inlet serves as the feed point of the pretreatment box 21 and is connected to the external material. The material conveying equipment is connected, and the material inlet is connected to the inlet of the pretreatment box 21. Multiple buffer ramps 22 are fixedly installed on the left and right sides of the pretreatment box 21 from top to bottom in an alternating left and right symmetrical manner. The buffer ramps 22 are designed to guide the material to fall slowly, reduce the impact of the material on the equipment, and provide sufficient cleaning time for the subsequent cleaning unit 23. The bottom of the left buffer ramp 22 is connected to the cleaning unit 23, which can perform high-pressure air blowing to clean the material on the buffer ramp 22. The cleaning unit 23 is connected to the drive unit 24, which can adjust the blowing angle of the cleaning unit 23.

[0026] Specifically, the cleaning unit 23 includes a support box 23-1, an air inlet pipe 23-2, a distribution pipe 23-3, two sets of bearing seats 23-4, two first conveying pipes 23-5, two second conveying pipes 23-6, and two jet boxes 23-7. The support box 23-1 is fixedly installed on the left side outside the pretreatment box 21. The support box 23-1 serves as the main support, providing space for the installation of subsequent components. The air inlet pipe 23-2 is fixedly installed through the left side of the support box 23-1. The distribution pipe 23-3 is fixedly connected to one end of the air inlet pipe 23-2, and the other end of the air inlet pipe 23-2 is connected to an external high-pressure blower. The high-pressure blower is an existing device that provides airflow to the air inlet pipe 23-2. The two sets of bearing seats 23-4 are respectively fixedly installed at the bottom of the corresponding two buffer ramps 22. The two first conveying pipes 23-5 and the two second conveying pipes are respectively connected to the two sets of bearing seats. The first conveying pipes 23-4 are rotatably connected, and the two first conveying pipes 23-5 are rotatably connected to the left side of the pretreatment box 21. The two first conveying pipes 23-5 can rotate stably on the left side of the bearing seat 23-4 and the pretreatment box 21. One end of the two first conveying pipes 23-5 is rotatably connected to the distribution pipe 23-3. The distribution pipe 23-3 is used to evenly distribute the airflow to the two first conveying pipes 23-5. The two jet boxes 23-7 are fixedly installed between the two first conveying pipes 23-5 and the two second conveying pipes. The bottom of each jet box 23-7 is evenly provided with jet holes. After the airflow passes through the first conveying pipe 23-5, it will come into the jet box 23-7 and then be ejected through the jet holes. The drive unit 24 is connected to the two first conveying pipes 23-5. The drive unit 24 can adjust the angle of the first conveying pipes 23-5 to increase the blowing area.

[0027] Specifically, the drive unit 24 includes a motor 24-1, a first sprocket 24-2, a second sprocket 24-3, and a chain 24-5. The motor 24-1 is fixedly installed on the left side outside the pretreatment box 21. The first sprocket 24-2 is fixedly installed on the drive end of the motor 24-1. The two second sprockets 24-3 are respectively fixedly installed on the outer walls of the two first conveying pipes 23-5. The two second sprockets 24-3 are located on the upper and lower sides of the first sprocket 24-2. The first sprocket 24-2 and the two second sprockets 24-3 are connected by the chain 24-5. The first sprocket 24-2 and the second sprockets 24-3 are meshed with each other by the chain 24-5.

[0028] Specifically, the first conveying pipe 23-5 and the distribution pipe 23-3 are connected by a sealed bearing. The outer ring of the sealed bearing is fixedly connected to the distribution pipe 23-3, and the inner ring of the sealed bearing is interference-fitted with the outer wall of the conveying pipe. This connection method not only ensures that the first conveying pipe 23-5 and the distribution pipe 23-3 can achieve stable and smooth rotation, effectively transmitting power and motion, but also effectively avoids the problem of gas leakage during rotation through the sealing performance of the sealed bearing, thereby ensuring the airtightness of the entire conveying system.

[0029] Specifically, two connecting seats 25 are fixedly installed between the top and bottom of the distribution pipe 23-3 and the support box 23-1. The connecting seats 25 are used to fix the distribution pipe 23-3.

[0030] Specifically, the buffer ramp 22 has an inclination angle of 30 degrees. This 30-degree inclination angle ensures that the material moves at a relatively gentle speed during its descent, avoiding impact and damage caused by excessively rapid descent. At the same time, this angle also facilitates the even distribution of material on the buffer ramp 22, increasing the contact area with the high-pressure air and improving the blowing effect on impurities and burrs.

[0031] Specifically, each buffer ramp 22 has multiple protrusions 26 fixedly installed on its top. When the material slides down the buffer ramp 22, these protrusions 26 interact with the material surface, causing the material to flip. The flipping of the material not only increases the cleaning area of ​​the cleaning unit 23, but also causes the material to vibrate during the flipping, further promoting the removal of impurities.

[0032] Specifically, the diameter of the first sprocket 24-2 is larger than the diameter of the second sprocket 24-3, which helps to ensure smooth transmission.

[0033] Working Principle: When the material enters the pretreatment structure 2 through the inlet at the top of the pretreatment box 21, it first falls slowly and alternately along the alternately arranged, symmetrically positioned buffer ramps 22 under the action of gravity. The 30-degree inclination angle of the buffer ramps 22 ensures that the material moves at a gentle speed, avoiding the impact and damage to the equipment caused by excessively rapid descent, and also provides sufficient time for the cleaning unit 23 to clean, ensuring complete pretreatment. At the same time, the multiple protrusions 26 on the top of the buffer ramps 22 interact with the material surface, causing the material to flip during its descent. This not only increases the contact area between the material and the high-pressure air, but also generates a certain amount of vibration during the flipping, which helps to initially remove impurities.

[0034] As the material falls, the cleaning unit 23 at the bottom of the left buffer ramp 22 begins to operate. A high-pressure blower provides a stable high-pressure airflow to the distribution pipe 23-3 through the inlet pipe 23-2. The distribution pipe 23-3 evenly distributes the high-pressure airflow to the two first conveying pipes 23-5. The airflow enters the jet box 23-7 through the first conveying pipes 23-5 and is ejected through the jet holes at the bottom of the jet box 23-7. The high-pressure airflow cleans the material on the buffer ramp 22 with high-pressure blowing. The even distribution of the jet holes ensures that the airflow can fully cover the material surface, effectively blowing off large impurities and burrs.

[0035] The drive unit 24, through the combination of motor 24-1, first sprocket 24-2, second sprocket 24-3 and chain 24-5, enables the jet box 23-7 to reciprocate at a small angle when jetting, thereby dynamically adjusting the blowing area and optimizing the cleaning effect.

[0036] Finally, after multiple treatments by the pretreatment structure 2, impurities and burrs on the material surface are effectively removed. The cleaned material enters the shot blasting machine body 1 through the feed port at the bottom of the pretreatment box 21 for subsequent shot blasting. Although the impurities blown off during the pretreatment process will eventually enter the cleaning chamber with the material and reach the shot blasting machine's recovery system, the key is that these impurities are removed in advance during the pretreatment stage. They can directly enter the recovery system, thus avoiding excessive contact with internal components such as the shot blasters and tracks inside the shot blasting machine 1, greatly reducing the possibility of equipment failure and maintenance. At the same time, the pre-removal of impurities effectively prevents excessive wear of the abrasive, extends the service life of the abrasive, and improves the efficiency and quality of shot blasting.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tracked shot blasting machine, comprising a shot blasting machine body (1), characterized in that, A pretreatment structure (2) is fixedly installed at the feed inlet of the shot blasting machine body (1). The pretreatment structure (2) includes a pretreatment box (21), multiple buffer inclined plates (22), a cleaning unit (23), and a drive unit (24). The pretreatment box (21) is fixedly installed on the top of the shot blasting machine body (1). A feed inlet is fixedly installed on the top of the pretreatment box (21), and a material passage is fixedly installed on the bottom of the pretreatment box (21). The material passage is connected to the feed inlet of the pretreatment box (21). Multiple buffer inclined plates (22) are fixedly installed on the left and right sides of the pretreatment box (21) from top to bottom in an alternating left and right symmetrical manner. The bottom of the left buffer inclined plate (22) is connected to the cleaning unit (23), and the drive unit (24) is connected to the cleaning unit (23).

2. The tracked surface polishing machine according to claim 1, characterized in that, The cleaning unit (23) includes a support box (23-1), an air inlet pipe (23-2), a distribution pipe (23-3), two sets of bearing seats (23-4), two first conveying pipes (23-5), two second conveying pipes (23-6), and two jet boxes (23-7). The support box (23-1) is fixedly installed on the left side outside the pretreatment box (21). The air inlet pipe (23-2) is fixedly inserted through the left side of the support box (23-1). The distribution pipe (23-3) is fixedly connected to one end of the air inlet pipe (23-2). The two sets of bearing seats (23-4) are respectively fixedly installed at the bottom of the corresponding two buffer inclined plates (22). The two first conveying pipes (23-5) and the two second conveying pipes are rotatably connected to the two sets of bearing seats (23-4) respectively, and the two first conveying pipes (23-5) are rotatably connected to the left side of the pretreatment box (21). One end of the two first conveying pipes (23-5) is rotatably connected to the distribution pipe (23-3). The two jet boxes (23-7) are fixedly installed between the two first conveying pipes (23-5) and the two second conveying pipes respectively. Each jet box (23-7) has jet holes evenly opened at the bottom. The drive unit (24) is connected to the two first conveying pipes (23-5).

3. The tracked surface polishing machine according to claim 2, characterized in that, The drive unit (24) includes a motor (24-1), a first sprocket (24-2), a second sprocket (24-3), and a chain (24-5). The motor (24-1) is fixedly installed on the left side outside the pretreatment box (21). The first sprocket (24-2) is fixedly installed on the drive end of the motor (24-1). The two second sprockets (24-3) are respectively fixedly installed on the outer walls of the two first conveying pipes (23-5). The first sprocket (24-2) and the two second sprockets (24-3) are connected by the chain (24-5).

4. The tracked surface polishing machine according to claim 2, characterized in that, The first conveying pipe (23-5) and the distribution pipe (23-3) are connected by a sealed bearing. The outer ring of the sealed bearing is fixedly connected to the distribution pipe (23-3), and the inner ring of the sealed bearing is interference-fitted with the outer wall of the conveying pipe.

5. A tracked surface polishing machine according to claim 2, characterized in that, Two connecting seats (25) are fixedly installed between the top and bottom of the distribution pipe (23-3) and the support box (23-1).

6. A tracked surface polishing machine according to claim 2, characterized in that, The inclination angle of the buffer ramp (22) is 30 degrees.

7. A tracked surface polishing machine according to claim 2, characterized in that, Each of the buffer ramps (22) has a plurality of protrusions (26) fixedly provided on its top.

8. A tracked surface polishing machine according to claim 3, characterized in that, The diameter of the first sprocket (24-2) is larger than the diameter of the second sprocket (24-3).

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