A pipeline rust removal spraying device

Abstract

The present application relates to a pipeline rust removal spraying device, which includes a body, an outer wall rust removal mechanism and an outer wall painting mechanism, the outer wall rust removal mechanism and the outer wall painting mechanism are installed on the body, and the body includes a transmission device; it also includes an inner wall rust removal mechanism, the inner wall rust removal mechanism includes a base ring, a rotating ring and a driving member for driving the rotating ring to rotate, the rotating ring is sleeved outside the base ring and is coaxially connected to the base ring for rotation, and a brush head is provided on the outer wall of the rotating ring; a support member for supporting the base ring is also provided, the length of the support member is greater than the length of the pipeline, the support member is connected and installed with the body, and the base ring is sleeved on the support member. The present application has the effects of good rust removal effect, stable structure and sufficient painting.

Description

Technical Field

[0001] The present application relates to the field of pipeline processing devices, and in particular to a pipeline rust removal spraying device. Background Art

[0002] In modern life, the use of pipelines is particularly important. Pipeline engineering plays an extremely important role in many industries of the national economy, such as petrochemical, natural gas, nuclear engineering, drainage, pipeline transportation and other industries. Pipelines are good conductors of electricity. During storage and use, they will produce local electrochemical reactions due to chemical and electrochemical effects. The surface is very easy to rust, which often pollutes the transported medium. Therefore, the inner wall of the pipeline needs to be derusted.

[0003] A general rust removal machine includes a chassis, an outer wall rust removal mechanism and an outer wall painting mechanism. A transmission mechanism is arranged inside the chassis to drive the pipeline to move horizontally along the axial direction. When the pipeline moves, the outer wall rust removal mechanism removes rust from the outside of the pipeline, and then the outer wall painting mechanism paints the pipeline after rust removal.

[0004] With respect to the above-mentioned related technologies, the inventors found that the inner wall of the pipeline is also prone to rust, but the above-mentioned related technologies are not easy to remove the rust from the inner wall of the pipeline. Summary of the invention

[0005] In order to facilitate rust removal on the inner wall of a pipeline, the present application provides a pipeline rust removal spraying device.

[0006] The present application provides a pipeline rust removal spraying device adopts the following technical solution:

[0007] A pipeline rust removal spraying device comprises a body, an outer wall rust removal mechanism and an outer wall paint spraying mechanism, wherein the outer wall rust removal mechanism and the outer wall paint spraying mechanism are mounted on the body, and the body comprises a transmission device; the device also comprises an inner wall rust removal mechanism, wherein the inner wall rust removal mechanism comprises a base ring, a rotating ring and a driving member for driving the rotating ring to rotate, wherein the rotating ring is sleeved on the outside of the base ring and is coaxially rotatably connected with the base ring, and a brush head is arranged on the outer wall of the rotating ring; a support member for supporting the base ring is also arranged, wherein the length of the support member is greater than the length of the pipeline, the support member is connected and mounted to the body, and the base ring is sleeved on the support member.

[0008] By adopting the above technical scheme, the pipeline is transported by the transmission device and passes through the outer wall painting mechanism, the outer wall rust removal mechanism and the inner wall rust removal mechanism in sequence; the outer wall rust removal mechanism and the inner wall rust removal mechanism first remove rust from the inner and outer walls of the pipeline, and the transmission device then performs reverse transfer, and when passing through the outer wall painting mechanism, the outer wall of the pipeline is sprayed with paint.

[0009] Optionally, it also includes an inner wall painting mechanism, which includes a support tube and a paint spraying tube connected to the output end of the support tube, and a nozzle is arranged on the paint spraying tube.

[0010] By adopting the above technical scheme, the pipeline is transported by the transmission device and passes through the outer wall painting mechanism and the inner wall painting mechanism, as well as the outer wall rust removal mechanism and the inner wall rust removal mechanism in sequence; the outer wall rust removal mechanism and the inner wall rust removal mechanism first remove rust from the inner and outer walls of the pipeline, and the transmission device then reverses the transport and sprays paint when passing through the outer wall painting mechanism and the inner wall painting mechanism.

[0011] Optionally, the support member is a support tube, and the base ring is sleeved on the support tube.

[0012] By adopting the above technical scheme, the support tube can not only transmit anti-rust paint to the paint spraying tube, but also support and install the inner wall rust removal mechanism as its installation basis; at the same time, when the inner wall rust removal mechanism is removing rust, the brush head can also reinforce and support the support tube by the reaction force of the inner wall of the pipe, and the two complement each other to achieve stabilization; thereby, rust removal and painting of the inner wall can be achieved, and cost can be saved and the structure can be stabilized.

[0013] Optionally, the outer wall rust removal mechanism includes a mounting ring arranged on the machine body, a rust removal ring arranged coaxially with the mounting ring, and a driving member for driving the rust removal ring to rotate, and a rust removal brush is arranged on the inner wall of the rust removal ring; the rust removal ring is rotatably connected to the inner wall of the mounting ring and can rotate coaxially relative to the mounting ring; the base ring and the mounting ring are coaxially arranged and have corresponding positions in the axial direction.

[0014] By adopting the above technical solution, the brush head for inner wall rust removal and the rust removal brush for outer wall rust removal indirectly support each other at relative positions through the mutual force of the pipeline, so that the structural stability of the outer wall rust removal mechanism and the inner wall rust removal mechanism is improved.

[0015] Optionally, the rust removing ring and the rotating ring rotate in opposite directions during rust removing.

[0016] By adopting the above technical solution, the pipeline is not easy to rotate relatively when subjected to friction during rust removal, so that the rust removal efficiency is not easy to be lost due to the opposite rotation of the pipeline, and the pipeline is more stably transported.

[0017] Optionally, it also includes a cleaning mechanism, which includes an annular outer cleaning brush and an inner cleaning brush, both of which are coaxially arranged with the base ring; the bristles of the outer cleaning brush are inward, and the bristles of the inner cleaning brush are outward, and the inner cleaning brush sleeve is installed on the support.

[0018] By adopting the above technical scheme, after the pipeline is derusted by the outer wall rust removal mechanism and the inner wall rust removal mechanism, the residue attached to the outer wall of the pipeline is cleaned by the outer cleaning brush, and the residue remaining in the pipeline is cleaned by the inner cleaning brush. After the pipeline passes through the cleaning mechanism forward, the residue is preliminarily cleaned, and when the pipeline moves backward, the cleaning mechanism can also perform a second cleaning, so that the inner and outer walls of the pipeline are relatively clean during subsequent painting, so that the painting effect is better.

[0019] Optionally, it also includes an external support wheel group, which includes a plurality of concave wheels whose axes are perpendicular to the axis of the pipeline, and the concave wheels are installed around the outside of the pipeline.

[0020] By adopting the above technical solution, the outer wall of the pipeline is supported by the external support wheel group, so that the pipeline can move more stably along the axis during transportation and reduce deviation.

[0021] Optionally, it also includes an internal reinforcement wheel set, which includes a plurality of cams whose axes are perpendicular to the pipeline axis, and the cams are mounted around the outside of the support.

[0022] By adopting the above technical solution, the inner wall of the pipeline is supported by the internal reinforcement wheel group, which can make the pipeline move more stably along the axis during transportation and reduce deviation; the external support wheel group also exerts force on the inner reinforcement wheel group through the pipeline, so that the support is subjected to stable support force, thereby improving the support stability of the support pipe and reinforcing the rust removal mechanism installed on the inner wall of the support pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a side view of the pipeline rust removal spraying device in Example 1;

[0024] Figure 2 is a top view of the pipeline rust removal spraying device in Example 1;

[0025] Figure 3 is a cross-sectional view showing the outer wall rust removal mechanism and the inner wall rust removal mechanism in Example 1;

[0026] Figure 4 is a side view of the pipeline rust removal spraying device in Example 2;

[0027] Figure 5 is a cross-sectional view showing the support and reinforcement mechanism in Example 2;

[0028] Figure 6 It is a schematic diagram showing the cleaning mechanism in Example 2.

[0029] Explanation of the accompanying drawings: 1. body; 11. transmission device; 2. outer wall rust removal mechanism; 21. mounting ring; 22. rust removal ring; 221. rust removal brush; 222. gear ring; 23. external motor; 231. transmission gear; 3. inner wall rust removal mechanism; 31. base ring; 311. mounting ear plate; 32. rotating ring; 321. brush head; 322. teeth; 33. internal motor; 331. driving gear; 4. outer wall painting mechanism; 41. outer wall transmission pipe; 42. annular pipe; 421. nozzle; 5. inner wall painting mechanism; 51. support pipe; 52. paint spraying pipe; 521. nozzle; 522. connecting pipe; 6. support and reinforcement mechanism; 61. outer support wheel group; 62. internal reinforcement wheel group; 7. cleaning mechanism; 71. outer cleaning brush; 72. inner cleaning brush. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-5 This application is described in further detail.

[0031] The present application embodiment discloses a pipeline rust removal spraying device. Figure 1 , Figure 2 The pipeline rust removal spraying device includes a fuselage 1, an outer wall rust removal mechanism 2, an inner wall rust removal mechanism 3, an outer wall paint spraying mechanism 4 and an inner wall paint spraying mechanism 5; wherein the outer wall rust removal mechanism 2, the inner wall rust removal mechanism 3, the outer wall paint spraying mechanism 4 and the inner wall paint spraying mechanism 5 are all installed on the fuselage 1.

[0032] The body 1 includes a transmission device 11, through which the pipeline is horizontally transmitted, and passes through the outer wall painting mechanism 4 and the inner wall painting mechanism 5, as well as the outer wall rust removal mechanism 2 and the inner wall rust removal mechanism 3 in sequence; the outer wall rust removal mechanism 2 and the inner wall rust removal mechanism 3 first perform rust removal on the inner and outer walls of the pipeline, and the transmission device 11 then performs reverse transfer, and when passing through the outer wall painting mechanism 4 and the inner wall painting mechanism 5, the pipeline is sprayed with paint.

[0033] Reference Figure 1 , Figure 3 The outer wall rust removal mechanism 2 includes a mounting ring 21 fixedly mounted on the body 1, a rust removal ring 22 coaxially mounted with the mounting ring 21, and a driving member for driving the rust removal ring 22 to rotate; in this embodiment, the driving member is an external motor 23.

[0034] The rust removing ring 22 is rotatably connected to the inner wall of the mounting ring 21 via a bearing, and can rotate coaxially relative to the mounting ring 21; a rust removing brush 221 is fixedly mounted on the inner wall of the rust removing ring 22; preferably, a plurality of rust removing brushes 221 are provided, and in the present embodiment, six rust removing brushes 221 are provided; the bristles of the rust removing brush 221 are all facing the axis of the rust removing ring 22.

[0035] In order to drive the rust removal ring 22 to rotate, a gear ring 222 is axially extended to the rust removal ring 22, and the gears on the gear ring 222 are arranged outwardly. A driving gear is installed on the driving end of the external motor 23, and the driving gear is meshed with the gear of the gear ring 222. The rotation of the driving gear of the external motor 23 drives the rust removal ring 22 to rotate, so that the rust removal brush 221 removes rust from the outer wall of the pipeline.

[0036] The inner wall rust removal mechanism 3 includes a base ring 31, a rotating ring 32 and a driving member for driving the rotating ring 32 to rotate. The base ring 31 and the rotating ring 32 are both coaxially arranged with the mounting ring 21; in the present embodiment, the driving member is an inner motor 33; the rotating ring 32 is coaxially sleeved on the outside of the base ring 31, and is rotatably connected to the base ring 31 through a bearing; a brush head 321 is arranged on the outer wall of the rotating ring 32; preferably, a plurality of brush heads 321 are arranged, and in the present embodiment, 6 brush heads 321 are arranged, and the directions of the brush heads 321 are all arranged away from the axial direction of the rotating ring 32; a support member for supporting the base ring 31 is also provided, the length of the support member is greater than the length of the pipe, the support member is connected and installed with the fuselage 1, and the base ring 31 is sleeved on the support member.

[0037] In order to drive the rotating ring 32 to rotate, a circle of teeth 322 is provided on the inner wall of the rotating ring 32, and a driving gear is installed on the driving end of the inner motor 33, and the driving gear is meshed with the teeth 322. The driving gear of the inner motor 33 rotates to drive the rotating ring 32 to rotate through the teeth 322, so that the brush head 321 removes rust from the inner wall of the pipe.

[0038] The outer wall painting mechanism 4 includes an outer wall transmission pipe 41 and an annular pipe 42; a paint storage box is arranged in the fuselage 1, one end of the outer wall transmission pipe 41 is connected to the paint storage box, and is provided with a delivery pump, and the other end is fixedly connected to the annular pipe 42. The outer wall transmission pipe 41 and the annular pipe 42 are both made of hard materials, so that the outer wall transmission pipe 41 can not only transport but also support the annular pipe 42; a plurality of nozzles 421 are evenly arranged along the circumference of the annular pipe 42. In the present embodiment, 6 nozzles 421 are arranged, and the nozzles perform atomized paint spraying on the pipe in the middle of the annular pipe 42.

[0039] Reference Figure 2 , Figure 3 The inner wall painting mechanism 5 includes a support tube 51 and a paint spraying tube 52 connected to the output end of the support tube 51. One end of the support tube 51 is connected to the paint storage box and is equipped with a delivery pump. The other end is fixedly connected to the paint spraying tube 52. Both the support tube 51 and the paint spraying tube 52 are made of hard materials, so that the support tube 51 can not only transport but also support the paint spraying tube 52.

[0040] Reference Figure 1 , Figure 2The support tube 51 first extends outward from the fuselage 1 and then bends vertically to a position parallel to the axis of the paint spraying tube 52, and then extends in the direction opposite to the positive transmission direction until the projection distance from the paint spraying tube 52 is slightly greater than the length of the tube, and then bends in a roundabout way, extends along the same axis of the paint spraying tube 52, and then connects with the paint spraying tube 52; the support member adopts the support tube 51, that is, the base ring 31 is sleeved and installed on the support tube 51;

[0041] The support tube 51 can not only support and transport the paint spray tube 52, but also support the inner wall rust removal mechanism 3 as its installation basis; at the same time, when the inner wall rust removal mechanism 3 is removing rust, the brush head 321 receives the reaction force of the inner wall of the pipe and can also reinforce and support the support tube 51. The two complement each other to achieve stability.

[0042] A plurality of nozzles 521 are provided on the paint spraying tube 52. In the present embodiment, six nozzles 521 are provided and are evenly distributed along the circumference on the outer wall of the paint spraying tube 52, facing the inner wall of the tube, and atomizing and spraying paint on the inner wall of the tube when the tube is conveyed in the reverse direction.

[0043] In order to further improve the rust removal effect, the base ring 31 and the mounting ring 21 are positioned correspondingly in the axial direction, so that the relative stability of the outer wall rust removal mechanism 2 and the inner wall rust removal mechanism 3 is improved during rust removal; the rust removal ring 22 and the rotating ring 32 rotate in opposite directions during rust removal, so that the pipeline is not easy to rotate relative to each other when subjected to friction during rust removal, so that the rust removal efficiency is not easily lost due to the opposite rotation of the pipelines, and the pipeline is more stably transmitted.

[0044] The implementation principle of a pipeline rust removal spraying device in an embodiment of the present application is: the pipeline is horizontally transmitted by a transmission device 11, and passes through an outer wall paint spraying mechanism 4 and an inner wall paint spraying mechanism 5, as well as an outer wall rust removal mechanism 2 and an inner wall rust removal mechanism 3 in sequence; the outer wall rust removal mechanism 2 and the inner wall rust removal mechanism 3 first perform rust removal treatment on the inner and outer walls of the pipeline, and the transmission device 11 then performs reverse transfer, and paint treatment is performed when passing through the outer wall paint spraying mechanism 4 and the inner wall paint spraying mechanism 5.

[0045] Example 2

[0046] Reference Figure 4 , Figure 5 The difference between this embodiment and embodiment 2 is that it also includes a supporting reinforcement mechanism 6 and a cleaning mechanism 7.

[0047] The supporting reinforcement mechanism 6 includes an outer supporting wheel group 61 for supporting the outer wall of the pipe and an inner reinforcing wheel group 62 for supporting the inner wall of the pipe; the outer supporting wheel group 61 and the inner reinforcing wheel group 62 are both located on the side of the outer wall rust removal mechanism 2 away from the outer wall painting mechanism 4, and close to the bending part of the supporting tube 51.

[0048] The outer supporting wheel group 61 includes a plurality of cams whose axes are perpendicular to the axis of the pipeline. The cams are mounted around the outside of the pipeline, and the outer contour of the cams is adapted to the outer wall of the pipeline. In this embodiment, four cams are used. The inner reinforcing wheel group 62 includes a plurality of cams whose axes are perpendicular to the axis of the pipeline. The cams are mounted around the outside of the supporting tube 51, and the outer walls thereof are in contact with the inner wall of the pipeline. In this embodiment, four cams are used.

[0049] By supporting the inner and outer walls of the pipeline by the outer supporting wheel group 61 and the inner reinforcing wheel group 62, the pipeline can be moved more stably along the axis during transportation and the deviation can be reduced. The outer supporting wheel group 61 also exerts a force on the inner reinforcing wheel group 62 through the pipeline, so that the support tube 51 is subjected to a stable supporting force, thereby improving the supporting stability of the support tube 51 and reinforcing the inner wall rust removal mechanism 3 installed on the support tube 51.

[0050] The cleaning mechanism 7 includes an annular outer cleaning brush 71 and an inner cleaning brush 72, both of which are coaxially arranged with the base ring 31, and both of which are installed on the side of the outer wall rust removal mechanism 2 away from the outer wall painting mechanism 4; the outer cleaning brush 71 is installed and fixed on the fuselage 1, with the bristles of the outer cleaning brush 71 facing inward; the inner cleaning brush 72 is sleeved and installed on the support tube 51, with the bristles of the inner cleaning brush 72 facing outward.

[0051] After the pipeline has passed through the outer wall rust removal mechanism 2 and the inner wall rust removal mechanism 3 for rust removal, the residue attached to the outer wall of the pipeline is cleaned by the outer cleaning brush 71, and the residue remaining in the pipeline is cleaned by the inner cleaning brush 72. After the pipeline passes through the cleaning mechanism 7 forward, the residue is preliminarily cleaned. When the pipeline moves backward, the cleaning mechanism 7 can also perform a second cleaning, so that the inner and outer walls of the pipeline are relatively clean during subsequent painting, so that the painting effect is better.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pipeline rust removal spraying device, comprising a body (1), an outer wall rust removal mechanism (2) and an outer wall painting mechanism (4), wherein the outer wall rust removal mechanism (2) and the outer wall painting mechanism (4) are mounted on the body (1), and the body (1) comprises a transmission device (11), characterized in that: The inner wall rust removal mechanism (3) also includes an inner wall rust removal mechanism (3), the inner wall rust removal mechanism (3) including a base ring (31), a rotating ring (32) and a driving member for driving the rotating ring (32) to rotate, the rotating ring (32) being sleeved on the outside of the base ring (31) and being coaxially rotatably connected to the base ring (31), and a brush head (321) being provided on the outer wall of the rotating ring (32); a support member for supporting the base ring (31) is also provided, the length of the support member being greater than the length of the pipeline, the support member being connected and mounted to the body (1), and the base ring (31) being sleeved on the support member; It also includes an inner wall paint spraying mechanism (5), the inner wall paint spraying mechanism (5) including a support tube (51) and a paint spraying tube (52) connected to the output end of the support tube (51), and a nozzle (521) is provided on the paint spraying tube (52); The support member is a support tube (51), and the base ring (31) is sleeved on the support tube (51); The outer wall rust removal mechanism (2) comprises a mounting ring (21) arranged on the machine body (1), a rust removal ring (22) arranged coaxially with the mounting ring (21), and a driving member for driving the rust removal ring (22) to rotate; the inner wall of the rust removal ring (22) is provided with a rust removal brush (221); the rust removal ring (22) is rotatably connected to the inner wall of the mounting ring (21) and can rotate coaxially relative to the mounting ring (21); the base ring (31) and the mounting ring (21) are coaxially arranged and have corresponding positions in the axial direction; The rust removal ring (22) and the rotating ring (32) rotate in opposite directions when rust removal is performed.

2. The pipeline rust removal spraying device according to claim 1 is characterized in that: The cleaning mechanism (7) further comprises an annular outer cleaning brush (71) and an inner cleaning brush (72), the outer cleaning brush (71) and the inner cleaning brush (72) being coaxially arranged with the base ring (31); the bristles of the outer cleaning brush (71) are facing inwards, and the bristles of the inner cleaning brush (72) are facing outwards, and the inner cleaning brush (72) is sleeved and mounted on a support member.

3. The pipeline rust removal spraying device according to claim 1 is characterized in that: It also includes an outer support wheel set (61), wherein the outer support wheel set (61) includes a plurality of concave wheels whose axes are perpendicular to the axis of the pipeline, and the concave wheels are mounted around the outside of the pipeline.

4. The pipeline rust removal spraying device according to claim 3 is characterized in that: It also includes an internal reinforcement wheel set (62), wherein the internal reinforcement wheel set (62) includes a plurality of cams whose axes are perpendicular to the axis of the pipeline, and the cams are mounted around the outside of the support member.

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