Three-gun cleaning machine

Abstract

The utility model discloses a three-gun cleaning machine, which belongs to the field of cleaning devices and is characterized in that the tail end of the cleaning machine is provided with a protection device for protecting a cleaning hose, the front end of a machine body is provided with a front straight guide pipe for guiding the cleaning hose, the machine body is internally provided with a driving device and a pressing device, and the pressing device is positioned right above the driving device; the cleaning hose is clamped between the driving device and the pressing device and is driven by the driving device to move front and back. According to the three-hose cleaning machine, an automatic structure is arranged, the driving device driven by the motor is used for providing driving force, the three cleaning hoses are pressed on the driving belt of the driving device through the pressing wheel set on the pressing device in cooperation with the pneumatically-controlled pressing device, and then the three cleaning hoses are cleaned. The cleaning hoses are driven to move front and back to extend into the heat exchange tube to be cleaned by utilizing friction force generated by rotation of the driving belt, and the three cleaning hoses synchronously act for cleaning in cooperation with the protection and guide functions of the protection device and the front straight guide tube, so that the cleaning efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of cleaning devices, in particular to a three-gun cleaning machine. Background Art

[0002] The heat exchange tubes in the heat exchanger are used for a long time, and the impurities in the fluid are deposited on the tube wall, which will affect the heat transfer efficiency. Therefore, they need to be cleaned regularly. Due to the slender structure of the heat exchange tubes, it is difficult to clean the center of the tube by ordinary cleaning, resulting in poor cleaning effect. Although high-pressure gas flushing has a good cleaning effect, the gas pipe is frequently inserted into the heat exchange tube and then pulled out, and this is repeated, which not only has a large workload but also has low efficiency. Moreover, when encountering some large heat exchangers, the cleaning workload is large, and it relies on cleaning one tube at a time, which has high labor intensity and does not meet the actual production work needs. Utility Model Content

[0003] The main purpose of the utility model is to provide a three-gun cleaning machine, which can effectively solve the problems mentioned in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The three-gun cleaning machine includes a body, a protective device for protecting a cleaning hose is installed at the rear end of the body, a front straight guide tube for guiding the cleaning hose is installed at the front end of the body, a driving device and a clamping device are installed inside the body, the clamping device is located directly above the driving device, the cleaning hose is clamped between the driving device and the clamping device, and is driven by the driving device to move forward and backward.

[0006] Preferably, three pipe inlet holes are horizontally opened on the protection device and connected to the interior of the machine body.

[0007] Preferably, a pipe rack is fixedly installed at the front end of the machine body, three front straight guide pipes are provided and installed on the pipe rack through two groups of fixing blocks, and the front straight guide pipes are connected to the machine body and correspond one-to-one with the pipe inlet holes.

[0008] Preferably, the driving device mainly includes a driving wheel, a driven wheel and a driving belt. The driving wheel and the driven wheel are installed on the middle partition inside the machine body, and the driving wheel is also connected to a motor. The driving belt is mounted on the driving wheel and the driven wheel for rotation.

[0009] Preferably, the driving device also includes a base plate, on which a tensioning wheel and a row of supporting wheels are installed, and the supporting wheel is located above the tensioning wheel, the tensioning wheel tensions the inner ring of the driving belt from below, and the supporting wheels are arranged horizontally in a row to support the inner ring of the driving belt from above.

[0010] Preferably, the clamping device mainly includes a cylinder, a bracket and a clamping wheel group. The cylinder is fixedly mounted on the inner wall of the top cover of the machine body by screws, and the output end of the cylinder is vertically downward and fixedly connected to the bracket. Several rows of clamping wheel groups are installed below the bracket through wheel axles, and each row of clamping wheel groups includes three evenly arranged concave wheels.

[0011] Preferably, an air inlet is provided on the rear end surface of the body for connecting the cylinder to an air source, and a tensioning switch for controlling the cylinder is also installed on the top surface of the body.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the utility model, an automated structure is provided, a driving device driven by a motor is used to provide driving force, a pneumatically controlled pressing device is coordinated, and a pressing wheel group on the pressing device is used to press three cleaning hoses onto a driving belt of the driving device. The friction force of the driving belt rotation is used to drive the cleaning hose to move back and forth and extend into the heat exchange tube to be cleaned. With the protection and guiding function of the protective device and the front straight guide tube, the three cleaning hoses are cleaned synchronously, thereby greatly improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the driving device of the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the clamping device of the utility model.

[0018] In the figure: 1. machine body; 2. protective device; 3. pipe inlet hole; 4. pipe rack; 5. front straight guide pipe; 6. fixing block; 7. tensioning switch; 8. driving device; 9. clamping device; 10. air inlet; 11. driving wheel; 12. driven wheel; 13. driving belt; 14. tensioning wheel; 15. supporting wheel; 16. bottom plate; 17. cylinder; 18. bracket; 19. concave wheel; 20. wheel axle; 21. clamping wheel assembly. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; for ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] like Figure 1-Figure 2 As shown, a protective device 2 for protecting the cleaning hose is installed at the rear end of the body 1 of the three-gun cleaning machine to prevent the fresh hose from being bent and tangled and then pulled into the body 1 to cause damage to the hose. Three pipe inlet holes 3 are horizontally opened on the protective device 2 and connected to the inside of the body 1; a pipe rack 4 is fixedly installed at the front end of the body 1, and three front straight guide tubes 5 are arranged and installed on the pipe rack 4 through two groups of fixing blocks 6. The front straight guide tubes 5 are connected to the body 1 and correspond to the pipe inlet holes 3 one by one, so that the cleaning hose can move smoothly back and forth in the body 1, and move smoothly in the heat exchange tube through the alignment and guidance of the front straight guide tubes 5.

[0022] like Figure 2 , Figure 3 As shown, the driving device 8 mainly includes a driving wheel 11, a driven wheel 12 and a driving belt 13. The driving wheel 11 and the driven wheel 12 are both installed on the middle partition inside the body 1, and the driving wheel 11 is also connected to a motor. The driving belt 13 is mounted on the driving wheel 11 and the driven wheel 12 for rotation; the driving device 8 also includes a base plate 16, on which a tensioning wheel 14 and a row of supporting wheels 15 are installed, and the supporting wheel 15 is located above the tensioning wheel 14, and the tensioning wheel 14 tensions the inner ring of the driving belt 13 from below, and the supporting wheels 15 are horizontally arranged in a row to support the inner ring of the driving belt 13 from above, so that the surface of the driving belt 13 that contacts the cleaning hose remains in a horizontal plane after being pressed down by the clamping device 9, thereby providing sufficient friction to drive the cleaning hose to move forward and backward.

[0023] like Figure 2 , Figure 4As shown, the clamping device 9 mainly includes a cylinder 17, a bracket 18 and a clamping wheel group 21. The cylinder 17 is fixedly mounted on the inner wall of the top cover of the body 1 by screws. The output end of the cylinder 17 is vertically downward and fixedly connected to the bracket 18. A plurality of rows of clamping wheel groups 21 are installed below the bracket 18 through a wheel axle 20. Each row of clamping wheel groups 21 includes three evenly arranged concave wheels 19. The groove of each concave wheel 19 just clamps the cleaning hose, which has the function of limiting and guiding, thereby ensuring that the cleaning hoses move in parallel without interfering with each other.

[0024] In actual use, first, turn on the tension switch 7 to raise the clamping device 9, then insert the heads of the three cleaning hoses from the pipe inlet hole 3 into the machine body 1 in turn, and then extend them from the front straight guide tube 5 corresponding to the straight line; straighten the three cleaning hoses to keep them parallel to each other, then turn on the tension switch 7 to control the cylinder 17 to press down the bracket 18 and the clamping wheel group 21, and check through the observation hole on the side of the machine body 1 whether each cleaning hose is just stuck by the corresponding concave wheel 19. If deflection is found, the side cover of the machine body 1 should be opened, and the cylinder 17 should be raised again and pressed down after adjusting the position to ensure that each cleaning hose is parallel to each other and is stuck under the concave wheel 19 in the same row. Then start the motor of the drive device 8, control the drive device 8 to rotate forward and reverse, and observe whether the cleaning hose is stretched out and retracted normally. After the test machine is normal, the high-pressure gas source of the cleaning hose can be connected, and the position of the machine body 1 is fixed to perform high-pressure cleaning on the heat exchange tube.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A three-gun cleaning machine, comprising a machine body (1), characterized in that: A protective device (2) for protecting a cleaning hose is installed at the rear end of the machine body (1), a front straight guide tube (5) for guiding the cleaning hose is installed at the front end of the machine body (1), a driving device (8) and a clamping device (9) are installed inside the machine body (1), the clamping device (9) is located directly above the driving device (8), the cleaning hose is clamped between the driving device (8) and the clamping device (9), and is driven by the driving device (8) to move forward and backward.

2. The three-gun cleaning machine according to claim 1, characterized in that: The protective device (2) is horizontally provided with three pipe inlet holes (3) which are connected to the interior of the machine body (1).

3. The three-gun cleaning machine according to claim 2, characterized in that: A pipe rack (4) is fixedly mounted at the front end of the machine body (1); three front straight guide pipes (5) are provided and mounted on the pipe rack (4) via two sets of fixing blocks (6); the front straight guide pipes (5) are connected to the machine body (1) and correspond one to one with the pipe inlet holes (3).

4. The three-gun cleaning machine according to claim 1, characterized in that: The driving device (8) mainly comprises a driving wheel (11), a driven wheel (12) and a driving belt (13); the driving wheel (11) and the driven wheel (12) are both mounted on a middle partition inside the machine body (1); the driving wheel (11) is also connected to a motor; and the driving belt (13) is mounted on the driving wheel (11) and the driven wheel (12) for rotation.

5. The three-gun cleaning machine according to claim 4, characterized in that: The driving device (8) further comprises a base plate (16), on which a tensioning wheel (14) and a row of supporting wheels (15) are mounted, wherein the supporting wheel (15) is located above the tensioning wheel (14), the tensioning wheel (14) tensions the inner ring of the driving belt (13) from below, and the supporting wheels (15) are arranged horizontally in a row to support the inner ring of the driving belt (13) from above.

6. The three-gun cleaning machine according to claim 5, characterized in that: The clamping device (9) mainly comprises a cylinder (17), a bracket (18) and a clamping wheel group (21); the cylinder (17) is fixedly mounted on the inner wall of the top cover of the machine body (1) by means of screws; the output end of the cylinder (17) is vertically downward and fixedly connected to the bracket (18); a plurality of rows of clamping wheel groups (21) are mounted below the bracket (18) via a wheel axle (20); each row of clamping wheel groups (21) comprises three evenly arranged concave wheels (19).

7. The three-gun cleaning machine according to claim 6, characterized in that: An air inlet (10) is provided on the rear end surface of the machine body (1) for connecting the cylinder (17) to an air source, and a tension switch (7) for controlling the cylinder (17) is also installed on the top surface of the machine body (1).

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