Bend deformation structure of pipe cleaner

Abstract

The invention discloses a pipeline cleaner bend deformation structure and relates to the technical field of pipeline dredging. A low-speed shaft of the speed reducer is fixedly connected with a propeller, a high-speed shaft of the speed reducer is fixedly connected with a universal joint, the other end of the universal joint is fixedly connected with a steering shaft, and scrapers are fixedly connected to the steering shaft and evenly distributed along the radial circumference of the steering shaft. The scraper has the beneficial effects that a steering arm and pilot arm structure capable of lagging steering is arranged at the front end of the scraper (the pilot arm firstly enters the bent pipeline, and the scraper is started to steer when the scraper enters the bent pipeline), so that the scraper completely advances in the bent pipeline according to the bending radius of the pipeline; the accidents that the scraper is broken and clamped in the bent pipeline are avoided, the bent pipeline is cleaned completely and thoroughly, and no dead angle is left.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline dredging, and in particular to a pipe cleaning device bend deformation structure. Background Art

[0002] In order to ensure the quality and transportation safety of the fluid transported by the pipeline, a pipe cleaner is used to clean the pipeline and perform regular maintenance, which can keep the pipeline in a new state and ensure efficient and safe operation of the pipeline. However, it is time-consuming and labor-intensive. Currently, the more commonly used method is to use the kinetic energy of the liquid flow to drive the propeller, and the propeller drives the scraper to scrape the inner wall of the pipeline, such as the pipe cleaner published in the announcement number CN 110434129B. However, when the pipe cleaner passes through a curved pipeline, such as an elbow, the axis of the scraper cannot be actively turned, and the scraper can only passively scrape the outer curved section of the elbow to enter the elbow, resulting in a scraper breakage accident, and in severe cases, it is stuck at the elbow. Summary of the invention

[0003] In order to solve the deficiencies of the prior art, the present invention provides a pipe cleaning device bend deformation structure.

[0004] The technical solution provided by the present invention is: a pipe cleaner bending deformation structure, including a reducer, the reducer is a coaxial mechanical reduction mechanism, two groups of support components are fixedly connected along the axis of the reducer housing, each group of support components is evenly distributed on three circumferences, the low-speed shaft of the reducer is fixedly connected to the propeller, the high-speed shaft of the reducer is fixedly connected to the universal joint, the other end of the universal joint is fixedly connected to the steering shaft, the steering shaft is fixedly connected to the scraper, and the scraper is evenly distributed along the radial circumference of the steering shaft; The steering shaft is connected to the support sleeve through a needle bearing, a shaft retaining ring and a hole retaining ring. The support sleeve and the steering shaft can rotate with each other and position axially at the same time. The outer circle of the support sleeve is fixedly connected to four steering arms. The four steering arms are evenly arranged around the circumference, and each steering arm is provided with a guide arm. The steering arm comprises a fixed arm, the fixed arm is fixedly connected to the support sleeve, a hole is opened in the fixed arm, a telescopic arm is inserted into the hole of the fixed arm, the telescopic arm is guided and slidably connected with the fixed arm, a support is arranged on the outside of the telescopic arm, a compression spring B is arranged between the support and the fixed arm, and a permanent magnet block is fixedly connected to the outside of the support; The pilot arm includes a pilot wheel, which is rotatably connected to two side plates via shaft A, and the two side plates are rotatably connected to the fixed arm via shaft B. A tension spring is provided outside shaft B between the fixed arm and the side plates; An opening rod is fixedly connected transversely between the two side plates, and a step is extended from the fixed arm below the axis B, and the step is located below the opening rod.

[0005] When the steering shaft is coaxial with the reducer, there is a distance between the opening lever and the step. When the scraper is located at the joint position of the pipe and the elbow, the guide arm located outside the elbow swings inward and the opening lever rests on the step.

[0006] An adjusting pad is connected to the step via countersunk bolts.

[0007] The support assembly includes a column, the column is fixedly connected to the reducer, a compression spring A is welded on the outer end surface of the column, a wheel frame is welded on the outer end surface of the compression spring A, and the outer side of the wheel frame is rotatably connected to the support wheel.

[0008] The beneficial effects of the present invention are as follows: a steering arm and a guide arm structure with delayed steering are arranged at the front end of the scraper (the guide arm first enters the curved pipe, and when the scraper enters the curved pipe, the scraper steering is started), so that the scraper moves in the curved pipe completely according to the bending radius of the pipe, avoiding accidents such as the scraper breaking or getting stuck in the curved pipe, and the curved pipe is cleaned completely and thoroughly without leaving any dead corners. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Attached Figure 1 It is a schematic diagram of the structure of the present invention; Attached Figure 2 Yes Figure 1 A magnified image of point A; Attached Figure 3 Yes Figure 1 A magnified view of point B; Attached Figure 4 It is a structural schematic diagram of the guide arm in the present invention; Attached Figure 5 It is a structural schematic diagram of the steering arm in the present invention; Attached Figure 6 It is a structural schematic diagram of the support assembly in the present invention; Attached Figure 7 This is a demonstration diagram of the scraper of the present invention just entering the elbow; Attached Figure 8 It is a demonstration diagram of the scraper entering the elbow in the present invention.

[0010] In the figure, 1-reducer, 2-propeller, 3-support assembly, 31-support wheel, 32-wheel frame, 33-compression spring A, 34-pillar, 4-universal joint, 5-scraper, 6-steering shaft, 7-steering arm, 71-step, 711-adjusting pad, 72-fixed arm, 73-telescopic arm, 74-support, 75-permanent magnet block, 76-compression spring B, 8-pilot arm, 81-opening lever, 82-side plate, 83-shaft A, 84-pilot wheel, 9-tension spring, 10-shaft B, 11-support sleeve, 12-hole retaining ring, 13-needle bearing, 14-shaft retaining ring. DETAILED DESCRIPTION

[0011] like Figures 1 to 8As shown, a pipe cleaner bending deformation structure includes a reducer 1, which is a coaxial mechanical reduction mechanism. Two groups of support components 3 are fixedly connected to the reducer 1 shell along the axis front and back, and each group of support components 3 is evenly distributed on three circumferences. The low-speed shaft of the reducer 1 is fixedly connected to the propeller 2, and the high-speed shaft of the reducer 1 is fixedly connected to the universal joint 4. The other end of the universal joint 4 is fixedly connected to the steering shaft 6. The steering shaft 6 is fixedly connected to a scraper 5, and the scraper 5 is evenly distributed along the radial circumference of the steering shaft 6. The steering shaft 6 is connected to the support sleeve 11 through a needle bearing 13, a shaft retaining ring 14 and a hole retaining ring 12. The support sleeve 11 and the steering shaft 6 can rotate with each other and be axially positioned at the same time. The outer circle of the support sleeve 11 is fixedly connected to four steering arms 7. The four steering arms 7 are evenly arranged around the circumference, and each steering arm 7 is provided with a guide arm 8. The steering arm 7 includes a fixed arm 72, the fixed arm 72 is fixedly connected to the support sleeve 11, a hole is opened in the fixed arm 72, a telescopic arm 73 is inserted into the hole of the fixed arm 72, the telescopic arm 73 is connected with the fixed arm 72 in a guiding and sliding manner, a support 74 is arranged on the outer side of the telescopic arm 73, a compression spring B76 is arranged between the support 74 and the fixed arm 72, and a permanent magnet block 75 is fixedly connected to the outer side of the support 74; The steering arm 7, the support sleeve 11 and the steering shaft 6 form an axial rigid component. The steering arm 7 plays the role of centering the pipe with the support sleeve 11 and the steering shaft 6, and at the same time makes the steering arm 7 and the support sleeve 11 not rotate in the pipe. The guide arm 8 guides the direction of forward movement in a straight line. At the same time, the permanent magnet block 75 is magnetically attracted to the inner wall of the pipe to reduce the speed, so that a speed difference is generated between the propeller 2 and the flow rate of the fluid. Otherwise, the propeller 2 moves with the fluid and will not play the role of utilizing the kinetic energy of the fluid.

[0012] The guide arm 8 includes a guide wheel 84, which is rotatably connected to two side plates 82 via an axis A83, and the two side plates 82 are rotatably connected to the fixed arm 72 via an axis B10. A tension spring 9 is provided between the fixed arm 72 and the side plates 82 outside the axis B10; The opening rod 81 is transversely fixedly connected between the two side plates 82 , and the fixed arm 72 extends a step 71 below the axis B10 , and the step 71 is located below the opening rod 81 .

[0013] When the steering shaft 6 is coaxial with the reducer 1, there is a distance between the opening lever 81 and the step 71. When the scraper 5 is located at the joint position between the pipe and the elbow, the guide arm 8 located on the outside of the elbow swings inward and the opening lever 81 rests on the step 71. From then on, when the scraper 5 continues to move into the elbow, the outer guide arm 8 continues to move along the inner wall of the outer arc of the elbow. The guide arm 8 swings inward under the pressure of the curved arc surface of the elbow, and the opening lever 81 presses the step 71 downward, so that the axis formed by the steering arm 7, the support sleeve 11 and the steering shaft 6 is bent accordingly, that is, the scraper 5 rotates along the bending radius of the elbow.

[0014] A steering arm 7 and a guide arm 8 structure with delayed steering are arranged at the front end of the scraper 5 (the guide arm 8 enters the curved pipe first, and the scraper 5 is turned only when the scraper 5 enters the curved pipe), so that the scraper 5 moves in the curved pipe completely according to the bending radius of the pipe, avoiding accidents such as the scraper 5 breaking or getting stuck in the curved pipe, and the curved pipe is cleaned completely and thoroughly without leaving any dead corners.

[0015] An adjusting pad 711 is connected to the step 71 via a countersunk bolt. By changing the rearward angle of the adjusting pad 711, the distance between the step 71 and the opening lever 81 can be changed to adapt to curved pipes with different bending radii.

[0016] The support assembly 3 includes a column 34, which is fixedly connected to the reducer 1. A compression spring A33 is welded to the outer end face of the column 34. The outer end face of the compression spring A33 is welded to a wheel frame 32. The outer side of the wheel frame 32 is rotatably connected to the support wheel 31. The support assembly 3 plays a role in centering the reducer 1 and the propeller 2 to the pipeline. At the same time, the support assembly 3 provides resistance in the circumferential direction, so that the reducer 1 does not rotate or rotates slowly, so that the propeller 2 can use the kinetic energy of the fluid to rotate and drive the scraper 5 to rotate at high speed.

Claims

1. A pipe cleaner bend deformation structure, comprising a reducer (1), characterized in that: The reducer (1) is a coaxial mechanical reduction mechanism. Two groups of support assemblies (3) are fixedly connected to the reducer (1) housing along the axis line. Each group of support assemblies (3) is evenly distributed on three circumferences. The low-speed shaft of the reducer (1) is fixedly connected to the propeller (2). The high-speed shaft of the reducer (1) is fixedly connected to the universal joint (4). The other end of the universal joint (4) is fixedly connected to the steering shaft (6). The steering shaft (6) is fixedly connected to a scraper (5). The scraper (5) is evenly distributed along the radial circumference of the steering shaft (6). The steering shaft (6) is connected to a support sleeve (11) via a needle bearing (13), a shaft retaining ring (14) and a hole retaining ring (12); the support sleeve (11) and the steering shaft (6) can rotate relative to each other and be axially positioned at the same time; the outer circle of the support sleeve (11) is fixedly connected to four steering arms (7); the four steering arms (7) are evenly arranged around the circumference, and each steering arm (7) is provided with a guide arm (8); The steering arm (7) comprises a fixed arm (72), the fixed arm (72) is fixedly connected to the support sleeve (11), a hole is opened in the fixed arm (72), a telescopic arm (73) is inserted into the hole of the fixed arm (72), the telescopic arm (73) is connected to the fixed arm (72) in a guiding sliding manner, a support (74) is arranged on the outside of the telescopic arm (73), a compression spring B (76) is arranged between the support (74) and the fixed arm (72), and a permanent magnet block (75) is fixedly connected to the outside of the support (74); The guide arm (8) comprises a guide wheel (84), the guide wheel (84) is rotatably connected to two side plates (82) via an axis A (83), the two side plates (82) are rotatably connected to the fixed arm (72) via an axis B (10), and a tension spring (9) is provided between the fixed arm (72) and the side plates (82) outside the axis B (10); An opening rod (81) is transversely fixedly connected between the two side plates (82), and a step (71) is extended from the fixed arm (72) below the axis B (10), and the step (71) is located below the opening rod (81).

2. A pig bend deformation structure according to claim 1, characterized in that: When the steering shaft (6) and the reducer (1) are coaxial, there is a distance between the opening lever (81) and the step (71). When the scraper (5) is located at the joint position between the pipeline and the elbow, the guide arm (8) located outside the elbow swings inwards and the opening lever (81) abuts against the step (71).

3. A pig bend deformation structure according to claim 1, characterized in that: An adjusting pad (711) is connected to the step (71) via a countersunk bolt.

4. A pig bend deformation structure according to claim 1, characterized in that: The support assembly (3) comprises a column (34), the column (34) is fixedly connected to the reducer (1), a compression spring A (33) is welded to the outer end surface of the column (34), a wheel frame (32) is welded to the outer end surface of the compression spring A (33), and the outer side of the wheel frame (32) is rotatably connected to the support wheel (31).

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