A device for cleaning inner wall of water conservancy pipeline

Abstract

The invention discloses a device for cleaning the inner wall of a water conservancy pipeline, comprising a first connecting plate, on which a rotating shaft is rotatably connected; a connecting sleeve assembly is arranged on the rotating shaft, and the connecting sleeve assembly comprises: a plurality of hollow sleeves; a plurality of gear rings, which are arranged on corresponding hollow sleeve shafts; a gear assembly is also arranged on the first connecting plate, and the gear unit drives the corresponding hollow sleeve shaft to rotate through the corresponding gear rings, and two adjacent hollow sleeve shafts rotate in opposite directions; the gear unit comprises: a transmission shaft, a first gear, and a second gear; a third gear is fixed on the rotating shaft; a scraping assembly is also included; and a motor for driving the rotating shaft to rotate. The cleaning device can offset the axial force on the rotating shaft by the opposite rotation of each scraping assembly, so that the rotating shaft rotates more stably.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline cleaning, and in particular relates to a device for cleaning the inner wall of a water conservancy pipeline. Background Art

[0002] After long-term use, silt tends to accumulate on the inner wall of water conservancy pipes, so pipe cleaning is required.

[0003] A Chinese patent application with publication number CN115193842A discloses a pipe cleaning device. In the prior art, two groups of telescopic components are fixed on the circumferential wall of a fixed shaft, each group of telescopic components is composed of a plurality of telescopic rods, the two groups of telescopic components are arranged at intervals along the axial direction of the fixed shaft, and the telescopic rods in the same group of telescopic components are arranged in a circular array around the axis of the fixed shaft. The right end of the telescopic rod away from the fixed shaft is a scraper, and the fixed shaft is also fixedly connected to the output shaft of a motor, and the motor drives all the scrapers to rotate in the same direction.

[0004] The defects of this prior art are:

[0005] Because all the scrapers rotate in one direction, when removing the sludge from a certain accumulation point, the scrapers always brush the sludge in one direction, resulting in insignificant sludge removal effect.

[0006] Because all the scrapers rotate in one direction, the axial force on the fixed shaft cannot be offset, which can easily cause the fixed shaft to vibrate and affect the stability of the working process. Summary of the invention

[0007] The purpose of the present invention is to provide a water conservancy pipeline inner wall cleaning device to solve the technical problem that all scrapers of the pipeline cleaning device in the prior art turn in the same direction, causing the device to shake.

[0008] In order to solve the above technical problems, the present invention adopts the following solutions:

[0009] A water conservancy pipeline inner wall cleaning device comprises a first connecting plate, a rotating shaft is rotatably connected to the first connecting plate, and the axis of the rotating shaft is arranged along the X direction;

[0010] A connecting sleeve assembly is provided on the rotating shaft, and the connecting sleeve assembly includes:

[0011] A plurality of hollow sleeve shafts, each having a different diameter, are sleeved in sequence; the axes of all hollow sleeve shafts coincide; there are N hollow sleeve shafts in total, which are recorded as the first hollow sleeve shaft, the second hollow sleeve shaft, the third hollow sleeve shaft, ..., the Nth hollow sleeve shaft from the inside to the outside; the outer hollow sleeve shaft is connected to the inner adjacent hollow sleeve shaft by means of a bearing, and the outer hollow sleeve shaft can rotate relative to the inner adjacent hollow sleeve shaft by means of the bearing; the first hollow sleeve shaft coincides with the axis of the rotating shaft, the first hollow sleeve shaft is connected to the rotating shaft by means of a bearing, and the first hollow sleeve shaft can rotate relative to the rotating shaft by means of the bearing;

[0012] A plurality of gear rings are arranged corresponding to the hollow sleeve shafts one by one and are opened on the corresponding hollow sleeve shafts;

[0013] The first connecting plate is also provided with a gear assembly, which is composed of N gear units. The N gear units drive the corresponding hollow sleeve shafts to rotate through the corresponding gear rings, and the two adjacent hollow sleeve shafts rotate in opposite directions.

[0014] The gear unit consists of:

[0015] A transmission shaft, rotatably connected to the first connecting plate, with the axis of the transmission shaft along the X direction;

[0016] A first gear is fixed to one end of the transmission shaft and coincides with the axis of the transmission shaft, and the first gear is meshed with a gear ring on the corresponding hollow sleeve shaft;

[0017] The second gear is fixed to the other end of the transmission shaft and coincides with the axis of the transmission shaft;

[0018] Assume that the gear unit meshing with the first hollow sleeve gear ring is the first gear unit, the gear unit meshing with the second hollow sleeve gear ring is the second gear unit, and so on...

[0019] The second gears of the first gear unit, the second gear unit, ..., and the Nth gear unit are meshed in sequence;

[0020] A third gear is fixed on the rotating shaft, the third gear coincides with the axis of the rotating shaft, and the third gear is meshed with the second gear of the first gear unit;

[0021] The lengths of the rotating shaft, the first hollow sleeve shaft, the second hollow sleeve shaft, ..., the Nth hollow sleeve shaft along the X direction decrease in sequence; the circumferential side wall of the rotating shaft exposed outside the first hollow sleeve shaft is assumed to be the first connection area, the circumferential side wall of the first hollow sleeve shaft exposed outside the second hollow sleeve shaft is assumed to be the second connection area, and so on...

[0022] The first connection area, the second connection area, ..., the Nth connection area and the circumferential side wall of the Nth hollow sleeve shaft are all equipped with scraping components;

[0023] Also included is a motor for driving the rotating shaft to rotate.

[0024] By setting up a connecting sleeve assembly and a corresponding gear unit, the directions of the various hollow sleeve shafts in the connecting sleeve assembly are different, so that the axial forces generated by all hollow sleeve shafts on the rotating shaft offset each other. After the axial forces are offset, the jitter of the rotating shaft is reduced, making the entire device more stable.

[0025] Furthermore, the scraping assembly comprises:

[0026] The first mounting plate is sleeved on the corresponding connection area or the circumferential side wall of the Nth hollow sleeve shaft and connected to the corresponding connection area or the hollow sleeve shaft;

[0027] The second mounting plate is sleeved on the corresponding connection area or the circumferential side wall of the Nth hollow sleeve shaft and does not contact the corresponding first mounting plate;

[0028] A plurality of slide rails are fixed on the surface of the first mounting plate facing the second mounting plate, each slide rail is arranged in a circular array along the axis of the rotating shaft, and the length direction of the slide rail is along the radial direction of the rotating shaft;

[0029] A plurality of sliders are arranged corresponding to the slide rails one by one, and the movable clamps are arranged on the corresponding slide rails and can move along the length direction of the slide rails;

[0030] A plurality of support plates are arranged corresponding to the sliders one by one and fixed on the corresponding sliders;

[0031] A plurality of scrapers are arranged corresponding to the support plates and fixed on the corresponding support plates;

[0032] A plurality of connecting rods are arranged corresponding to the support plates one by one, one end of the connecting rods is hinged to the corresponding second mounting plate, and the other end is hinged to the corresponding support plate;

[0033] A second limiting nut is threadedly connected to the corresponding connection area or the circumferential side wall of the Nth hollow sleeve shaft; the second limiting nut is located on a side of the second mounting plate away from the first mounting plate;

[0034] The first spring is sleeved on the corresponding connection area or the circumferential side wall of the Nth hollow sleeve shaft; it is located between the second mounting plate and the second limiting nut; the two ends of the first spring are respectively in contact with the second limiting nut and the second mounting plate, and the first spring is in a compressed state.

[0035] Under the action of the centrifugal force generated by the rotation of the first spring and the rotating shaft, the second mounting plate will be moved closer to the corresponding first mounting plate, so that the scraper can be as close to the inner wall of the pipe as possible. The elastic force of the first spring alone is not enough to make the scraper close to the inner wall of the pipe due to the friction resistance of the slider on the slide rail, and the centrifugal force of the rotating shaft is also required. Therefore, when the device is withdrawn from the pipe, the rotating shaft must be stopped. After stopping, the centrifugal force is lost, and the elastic force of the first spring will not be able to ensure that the scraper is close to the inner wall of the pipe.

[0036] Furthermore, the scraping assembly also includes:

[0037] Two first limiting nuts are threadedly connected to the corresponding connection area or the circumferential side wall of the Nth hollow sleeve shaft; the first limiting nuts are respectively located on both sides of the first mounting plate along the X direction, and the two first limiting nuts are respectively in contact with the first mounting plate, and are used to connect the first mounting plate to the corresponding connection area or the circumferential side wall of the Nth hollow sleeve shaft;

[0038] The second spring is sleeved on the corresponding connection area or the circumferential side wall of the Nth hollow sleeve shaft; one end abuts against the side surface of the second mounting plate close to the first mounting plate, and the other end abuts against the corresponding first limiting nut, and the second spring is in a compressed state.

[0039] The benefit of providing the second spring is that when the device is withdrawn from the pipeline, if the second mounting plate moves away from the first mounting plate, it can help overcome the elastic force of the first spring. If the device enters the pipeline and the scraper hits an obstacle, the second mounting plate will move away from the first mounting plate, thereby compressing the first spring, and the first spring can thus play a buffering role.

[0040] Furthermore, a plurality of support rods are fixed to a side of the first connecting plate away from the connecting sleeve assembly, and a second connecting plate is commonly fixed to a side of each support rod away from the first connecting plate. The non-rotating shaft end of the motor is fixed to the second connecting plate, and the rotating shaft of the motor passes through the second connecting plate. A hole is provided on the second connecting plate for the rotating shaft of the power supply motor to pass through, and the rotating shaft of the motor is connected to the rotating shaft through a coupling.

[0041] The second mounting plate can provide a location for mounting the motor, and can also be connected to the first mounting plate as a whole through a plurality of support rods.

[0042] Furthermore, the diameters of the second gears of the gear units are the same, and the diameters of the first gears of the first gear unit, the second gear unit, ..., the Nth gear unit gradually increase, for use when the rotation speed of the transmission shaft is the same.

[0043] The scraping components have the same rotation speed and the adjacent scraping components rotate in opposite directions. The advantage of this arrangement is that at the same cleaning position, the same rotation speed of the scraping components is conducive to uniform cleaning effect. In addition, the scraping components rotate in opposite directions, and two forces in opposite directions are generated for the same cleaning position, which is conducive to thorough cleaning. Because when scraping in the same direction, if the dirt follows the texture in that direction, stubborn dirt may not be easily scraped off. At this time, the opposite force is used to scrape, and the dirt cannot follow the texture in the opposite direction and is naturally easy to scrape off.

[0044] Furthermore, the gear assembly is provided in two groups.

[0045] The hollow shaft is driven more stably. Each hollow shaft is driven by two gear units.

[0046] Furthermore, the number of the hollow sleeve shafts is 3.

[0047] Assume that two of the three hollow sleeves rotate clockwise and one rotates counterclockwise; then the rotation direction of the rotating shaft must be counterclockwise, which just offsets the axial force of the rotating shaft. If the number of hollow sleeves is even, there may be an additional hollow sleeve rotating clockwise or counterclockwise, making it impossible to exactly offset the axial force of the rotating shaft.

[0048] Compared with the prior art, the present invention has the following beneficial effects: the present invention designs a connecting sleeve assembly, and each hollow sleeve shaft in the connecting sleeve assembly rotates in opposite directions and has the same rotation speed, which can effectively offset the axial force of the rotating shaft when the device is running, solve the problem of the shaking of the rotating shaft, and improve the stability of the working process of the device. In addition, the opposite rotation of the hollow sleeve shaft is conducive to cleaning dirt. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 is a cross-sectional view of the entire device;

[0050] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0051] Figure 3 yes Figure 1 The enlarged view of point B in the middle;

[0052] Figure 4 yes Figure 1 Enlarged view of point C in FIG.

[0053] 1. First connecting plate; 2. Support rod; 3. Second connecting plate; 4. Motor; 5. Rotating shaft; 6. Coupling; 7. First hollow sleeve shaft; 8. Second hollow sleeve shaft; 9. Third hollow sleeve shaft; 10. Ring gear; 11. Transmission shaft; 12. First gear; 13. Second gear; 14. Third gear; 15. First mounting plate; 16. Second mounting plate; 17. First spring; 18. Second spring; 19. Slide rail; 20. Slider; 21. Support plate; 22. Scraper; 23. Connecting rod; 24. First limiting nut; 25. Second limiting nut; 26. Bearing. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] See Figure 1 A water conservancy pipeline inner wall cleaning device includes a first connecting plate 1. In this embodiment, the first connecting plate 1 is a circular plate. Assume that the axis of the first connecting plate 1 is along Figure 1 In the X direction; Figure 1 The left side along the X direction in the viewing angle is the left direction of this embodiment. Figure 1 The right side along the X direction in the viewing angle is the right direction of this embodiment.

[0056] A plurality of support rods 2 are fixed on the right side surface of the first connecting plate 1, the axis of the support rods 2 is parallel to the X direction, and one end of each support rod 2 away from the first connecting plate 1 is fixedly connected to the second connecting plate 3, and the first connecting plate 1 and the second connecting plate 3 are connected as a whole through the plurality of support rods 2. In this embodiment, the second connecting plate 3 is a circular plate, the axis of the second connecting plate 3 coincides with the axis of the first connecting plate 1, the second connecting plate 3 does not contact the first connecting plate 1, and a cavity is left between the two.

[0057] A motor 4 is provided on the right side of the second connecting plate 3. The non-rotating shaft end of the motor 4 is fixed on the right side surface of the second connecting plate 3. The rotating shaft of the motor 4 passes through the second connecting plate 3. A hole for the rotating shaft of the power supply machine 4 to pass through is provided on the second connecting plate 3. In this embodiment, the rotating shaft axis of the motor 4 coincides with the axis of the second connecting plate 3.

[0058] The first connecting plate 1 is rotatably connected with a rotating shaft 5. In this embodiment, the axis of the rotating shaft 5 coincides with the axis of the first connecting plate 1. The rotating shaft of the motor 4 is fixedly connected to the right end of the rotating shaft 5 through a coupling 6. The motor 4 can rotate the rotating shaft 5 around its axis through the coupling 6. The coupling 6 is located in the aforementioned cavity.

[0059] A connecting sleeve assembly is provided on the rotating shaft 5, and the connecting sleeve assembly is located on the left side of the first connecting plate 1. The connecting sleeve assembly includes:

[0060] Several hollow sleeves, in this embodiment, the hollow sleeves are in the shape of a circular tube, the diameters of the hollow sleeves are not equal, the hollow sleeves are arranged in sequence, and the axes of all the hollow sleeves coincide. Assume that there are N hollow sleeves in total, and the whole formed by all the hollow sleeves being arranged in sequence is a whole K. Starting from the axis of the whole K, along the radial direction of the whole K from inside to outside, the hollow sleeves are sequentially recorded as the first hollow sleeve 7, the second hollow sleeve 8, the third hollow sleeve 9, ..., the Nth hollow sleeve.

[0061] Any outer hollow sleeve shaft is connected to the adjacent inner hollow sleeve shaft by means of bearing 26, so any outer hollow sleeve shaft can rotate around its axis relative to the adjacent inner hollow sleeve shaft. In this embodiment, N=3, and there are three hollow sleeve shafts in total.

[0062] The first hollow sleeve 7 is sleeved on the rotating shaft 5 , the axis of the first hollow sleeve 7 coincides with the axis of the rotating shaft 5 , the first hollow sleeve 7 is connected to the rotating shaft 5 via a bearing 26 , and the first hollow sleeve 7 can rotate relative to the rotating shaft 5 around its axis.

[0063] The lengths of the first hollow sleeve 7, the second hollow sleeve 8, the third hollow sleeve 9, ..., and the Nth hollow sleeve along the X direction gradually decrease. In this embodiment, the right ends of the first hollow sleeve 7, the second hollow sleeve 8, the third hollow sleeve 9, ..., and the Nth hollow sleeve are located in the same plane, so the left end of the first hollow sleeve 7 protrudes from the second hollow sleeve 8, the left end of the second hollow sleeve 8 protrudes from the third hollow sleeve 9, and so on ... In addition, the left end of the rotating shaft 5 protrudes from the first hollow sleeve 7.

[0064] The circumferential side of the rotating shaft 5 exposed outside the first hollow sleeve shaft 7 is the first connection area; the circumferential side of the first hollow sleeve shaft 7 exposed outside the second hollow sleeve shaft 8 is the second connection area; the circumferential side of the second hollow sleeve shaft 8 exposed outside the third hollow sleeve shaft 9 is the third connection area, and so on...

[0065] See Figure 2 The connecting sleeve assembly also includes: a plurality of gear rings 10; a plurality of gear rings 10 are arranged in one-to-one correspondence with the hollow sleeve shaft; the gear rings 10 are opened on the inner wall of the corresponding hollow sleeve shaft, and the axes of all gear rings 10 coincide with the axis of the rotating shaft 5.

[0066] Two sets of gear assemblies are arranged on the first connecting plate 1. Figure 1From the perspective of rotation, let the straight line where the axis of the rotating shaft 5 is located be line L, and the two sets of gear assemblies are symmetrically arranged along line L, and the two sets of gear assemblies do not contact each other. From the perspective of a set of gear assemblies, a set of gear assemblies is composed of N gear units, each of which is meshed with the corresponding gear ring 10, and is used to drive the corresponding hollow sleeve shaft to rotate through the corresponding gear ring 10. The gear unit includes:

[0067] The transmission shaft 11 is rotatably connected to the first connecting plate 1 , and the axis of the transmission shaft 11 is along the X direction; the right end of the transmission shaft 11 is located in the cavity, and the left end of the transmission shaft 11 is located in the corresponding hollow sleeve shaft.

[0068] The first gear 12 is fixed to the left end of the transmission shaft 11 and coincides with the axis of the transmission shaft 11. The first gear 12 of each gear unit meshes with the gear ring 10 on the corresponding hollow sleeve shaft; the gear unit meshing with the gear ring 10 on the first hollow sleeve shaft 7 is the first gear unit, the gear unit meshing with the gear ring 10 on the second hollow sleeve shaft 8 is the second gear unit, and so on...

[0069] The second gear 13 is fixed to the right end of the transmission shaft 11, is in the cavity, and coincides with the axis of the transmission shaft 11. The second gears 13 of all gear units are of the same shape and size, ensuring that all transmission shafts 11 rotate at the same speed. The second gear 13 of the first gear unit meshes with the second gear 13 of the second gear unit, the second gear 13 of the second gear unit meshes with the second gear 13 of the third gear unit, and so on... The diameter of the first gear 12 on each gear unit is different, and the diameters of the first gear 12 of the first gear unit, the second gear unit, ..., and the Nth gear unit increase successively, ensuring that when the second gear 13 has the same size, the transmission ratio is improved, so that the rotation speeds of all hollow sleeve shafts are close to the same.

[0070] A third gear 14 is fixed to the right end of the rotating shaft 5. The third gear 14 is located in the cavity. The axis of the third gear 14 coincides with the axis of the rotating shaft 5. The diameter of the third gear 14 is greater than the diameter of the second gear 13, which plays a role in increasing the transmission ratio. The third gear 14 is simultaneously meshed with the second gears 13 of the two first gear units. So far, from a gear assembly, since the third gear 14 is meshed with the second gear 13 of the first gear unit, the power of the third gear 14 is transmitted to the entire first gear unit through the second gear 13 of the first gear unit, and the first gear 12 of the first gear unit transmits the power to the first hollow sleeve shaft 7 through the corresponding gear ring 10; since the second gear 13 of the first gear unit is meshed with the second gear 13 of the second gear unit, the power of the first gear unit is transmitted to the entire second gear unit through the second gear 13 of the second gear unit, and the second gear unit is transmitted to the second hollow sleeve shaft 8 through the corresponding gear ring 10; and so on... the power is gradually transmitted to all gear units, and each gear unit rotates the corresponding hollow sleeve shaft.

[0071] It can be known from the meshing transmission relationship of the gears that if the third gear 14 and the rotating shaft 5 rotate clockwise as a whole under the force of the motor 4, the first hollow sleeve shaft 7 rotates counterclockwise under the joint action of the two first gear units, and the second hollow sleeve shaft 8 rotates clockwise under the joint action of the two second gear units, and so on... The directions of rotation of the two adjacent hollow sleeve shafts are opposite, and the rotating shaft 5 and the first hollow sleeve shaft 7 are opposite. Since the directions of rotation of each hollow sleeve shaft are opposite, the axial forces of each hollow sleeve shaft on the rotating shaft 5 can offset each other, making the rotation of the rotating shaft 5 more stable.

[0072] See Figure 3 and Figure 4 A scraping assembly is installed on each of the first connection area, the second connection area, ..., the Nth connection area and the circumferential side wall of the Nth hollow sleeve shaft, for a total of N+1 scraping assemblies, and the scraping assemblies include:

[0073] The first mounting plate 15 is fixedly sleeved on the corresponding connection area or the circumferential side wall of the Nth hollow sleeve shaft; in this embodiment, the first mounting plate 15 is a circular plate, and the axis of the first mounting plate 15 coincides with the axis of the rotating shaft 5. Two first limiting nuts 24 are threadedly connected on the corresponding connection area or the circumferential side wall of the Nth hollow sleeve shaft, and the two first limiting nuts 24 are respectively located on the left and right sides of the first mounting plate 15. Figure 3 Only one first limiting nut 24 is shown in the figure, and two first limiting nuts 24 clamp the first mounting plate 15 to ensure that the first mounting plate 15 is connected to the corresponding connecting area or the circumferential side wall of the Nth hollow sleeve shaft as a whole.

[0074] The second mounting plate 16 is movably mounted on the corresponding connection area or the circumferential side wall of the Nth hollow sleeve shaft, and is located on the left side of the corresponding first mounting plate 15. The first mounting plate 15 and the second mounting plate 16 are not in contact. In this embodiment, the second mounting plate 16 is a circular plate, and the axis of the second mounting plate 16 coincides with the axis of the rotating shaft 5.

[0075] The second limiting nut 25 is threadedly connected to the corresponding connection area or the circumferential side wall of the Nth hollow sleeve shaft, is located on the left side of the corresponding second mounting plate 16 , and does not contact the corresponding second mounting plate 16 .

[0076] Two springs are sleeved on the corresponding connection area or the circumferential side wall of the Nth hollow sleeve shaft; the axis of the spring coincides with the second mounting plate 16. The two springs are respectively located on the left and right sides of the corresponding second mounting plate 16, and the spring located on the left side of the second mounting plate 16 is the first spring 17, and the spring located on the right side of the second mounting plate 16 is the second spring 18. The left end of the first spring 17 abuts against the right end surface of the second limiting nut 25, and the right end of the first spring 17 abuts against the left end surface of the second mounting plate 16. The left end of the second spring 18 abuts against the right end surface of the second mounting plate 16, and the right end of the second spring 18 abuts against the left end surface of the corresponding first limiting nut 24. The first spring 17 and the second spring 18 are always in a compressed state. When the scraping assembly moves axially along the rotating shaft 5 in the pipeline and contacts the hard protrusion, the second spring 18 of the scraping assembly will be further compressed, and can rely on the second spring 18 to provide a small amount of buffer in the axial direction.

[0077] A plurality of slide rails 19 are fixed on the left side surface of the first mounting plate 15 , and each slide rail 19 is arranged in an array along the circumference of the axis of the first mounting plate 15 . The length direction of the slide rail 19 is along the radial direction of the first mounting plate 15 .

[0078] A plurality of sliders 20 are arranged corresponding to the slide rails 19 one by one, and are movably mounted on the corresponding slide rails 19 and can move along the length direction of the slide rails 19 .

[0079] A plurality of support plates 21 are arranged one by one corresponding to the sliders 20 , fixed on the corresponding sliders 20 , and move along with the sliders 20 .

[0080] A plurality of scrapers 22 are arranged one by one corresponding to the support plates 21 and fixed on the corresponding support plates 21. The support plates 21, the sliders 20 and the scrapers 22 move as a whole. In order to keep the distances between the scrapers 22 and the axis of the rotating shaft 5 small when there is no external force between the first spring 17 and the second spring 18, the outer diameters of the second mounting plates 16 of all scraper assemblies are almost the same; the outer diameters of the first mounting plates 15 of all scraper assemblies are almost the same.

[0081] A plurality of connecting rods 23 are arranged corresponding to the support plates 21 one by one, with one end hinged to the corresponding second mounting plate 16 and the other end hinged to the corresponding support plate 21 .

[0082] The use of this device:

[0083] First, the non-rotating shaft end of the motor 4 of the device is installed on the pipeline robot, and the pipeline robot carries the device to move, and the two work together to complete the pipeline cleaning work.

[0084] After the motor 4 of the device is turned on, the motor 4 rotates the rotating shaft 5 and the third gear 14 as a whole through the coupling 6; the third gear 14 meshes with the second gear 13 of the first gear unit, so the first gear unit rotates, and the first gear unit meshes with the first hollow sleeve shaft 7, so the first hollow sleeve shaft 7 rotates; the second gear 13 of the first gear unit meshes with the second gear 13 of the second gear unit, so the first gear unit drives the second gear unit to rotate, and the second gear unit drives the second hollow sleeve shaft 8 to rotate, and so on...all hollow sleeve shafts rotate. The directions of the two adjacent hollow sleeve shafts are opposite, and the direction of the first hollow sleeve shaft 7 is opposite to that of the rotating shaft 5.

[0085] The scraping assembly installed on the corresponding hollow sleeve shaft or the rotating shaft 5 also rotates with the rotation of the rotating shaft 5 or the corresponding hollow sleeve shaft.

[0086] Take a scraping assembly as an example. The slider 20, the support plate 21 and the scraper 22 on a certain slide rail 19 in the scraping assembly are subjected to the centrifugal force as a whole, and will move along the slide rail 19 in the direction away from the axis of the rotating shaft 5. As a result, the whole pulls the second mounting plate 16 toward the first mounting plate 15 through the connecting rod 23, and the second spring 18 is further compressed. After the whole moves away from the rotating shaft 5 along the slide rail 19, the speed of the motor 4 is adjusted, and under the action of centrifugal force, the whole can be as close to the inner wall of the pipe as possible. After getting close to the inner wall of the pipe, the scraping assembly rotates at the same time, so the sludge on the inner wall of the pipe is scraped off. As the robot moves forward, the sludge in the pipe is continuously scraped off.

[0087] Because the scraping components rotate in opposite directions, the axial forces generated by the scraping components on the rotating shaft 5 cancel each other out, reducing the shaking of the rotating shaft 5. Also because the scraping components rotate in opposite directions, the first scraping component on the rotating shaft 5 scrapes the sludge clockwise, and the second scraping component on the first hollow sleeve shaft 7 scrapes the sludge counterclockwise, and the directions of destruction of the sludge are opposite, which is more conducive to the scraping of the sludge.

[0088] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A water conservancy pipeline inner wall cleaning device, characterized in that: It comprises a first connecting plate (1), to which a rotating shaft (5) is rotatably connected, and the axis of the rotating shaft (5) is arranged along the X direction; A connecting sleeve assembly is provided on the rotating shaft (5), and the connecting sleeve assembly comprises: A plurality of hollow sleeve shafts, each having a different diameter, are sleeved in sequence; the axes of all the hollow sleeve shafts coincide; there are N hollow sleeve shafts in total, which are recorded as a first hollow sleeve shaft (7), a second hollow sleeve shaft (8), a third hollow sleeve shaft (9), ..., an Nth hollow sleeve shaft from the inside to the outside; the outer hollow sleeve shaft is connected to the inner adjacent hollow sleeve shaft by means of a bearing (26), and the outer hollow sleeve shaft can rotate relative to the inner adjacent hollow sleeve shaft by means of the bearing (26); the axis of the first hollow sleeve shaft (7) coincides with the axis of the rotating shaft (5), the first hollow sleeve shaft (7) is connected to the rotating shaft (5) by means of the bearing (26), and the first hollow sleeve shaft (7) can rotate relative to the rotating shaft (5) by means of the bearing (26); A plurality of gear rings (10) are arranged in one-to-one correspondence with the hollow sleeve shafts and are opened on the inner wall of the corresponding hollow sleeve shafts; The first connecting plate (1) is also provided with a gear assembly, which is composed of N gear units. The N gear units drive corresponding hollow sleeve shafts to rotate through corresponding gear rings (10), and two adjacent hollow sleeve shafts rotate in opposite directions. The gear unit consists of: A transmission shaft (11) is rotatably connected to the first connecting plate (1), and the axis of the transmission shaft (11) is along the X direction; A first gear (12) is fixed to one end of the transmission shaft (11) and coincides with the axis of the transmission shaft (11). The first gear (12) meshes with a gear ring (10) on a corresponding hollow sleeve shaft; A second gear (13) is fixed to the other end of the transmission shaft (11) and coincides with the axis of the transmission shaft (11); It is assumed that the gear unit meshing with the gear ring (10) of the first hollow sleeve shaft (7) is the first gear unit, the gear unit meshing with the gear ring (10) of the second hollow sleeve shaft (8) is the second gear unit, and so on... The first gear unit, the second gear unit, ..., and the second gear (13) of the Nth gear unit are meshed in sequence; A third gear (14) is fixed on the rotating shaft (5), the third gear (14) coincides with the axis of the rotating shaft (5), and the third gear (14) meshes with the second gear (13) of the first gear unit; The lengths of the rotating shaft (5), the first hollow sleeve shaft (7), the second hollow sleeve shaft (8), ..., and the Nth hollow sleeve shaft along the X direction decrease in sequence; the circumferential side wall of the rotating shaft (5) exposed outside the first hollow sleeve shaft (7) is assumed to be the first connection area, the circumferential side wall of the first hollow sleeve shaft (7) exposed outside the second hollow sleeve shaft (8) is assumed to be the second connection area, and so on... The first connection area, the second connection area, ..., the Nth connection area and the circumferential side wall of the Nth hollow sleeve shaft are all equipped with scraping components; It also includes a motor (4) for driving the rotating shaft (5) to rotate; Wherein, the scraping component comprises: A first mounting plate (15) is sleeved on the corresponding connection area or the circumferential side wall of the Nth hollow sleeve shaft and is connected to the corresponding connection area or the hollow sleeve shaft; The second mounting plate (16) is sleeved on the corresponding connection area or the circumferential side wall of the Nth hollow sleeve shaft and does not contact the corresponding first mounting plate (15); A plurality of slide rails (19) are fixed on the surface of the first mounting plate (15) facing the second mounting plate (16), the slide rails (19) being arranged in an array along the circumference of the axis of the rotating shaft (5), and the length direction of the slide rails (19) being along the radial direction of the rotating shaft (5); A plurality of sliders (20) are arranged one by one corresponding to the slide rails (19), and are movably mounted on the corresponding slide rails (19) and can move along the length direction of the slide rails (19); A plurality of support plates (21) are arranged in one-to-one correspondence with the sliders (20) and fixed on the corresponding sliders (20); A plurality of scrapers (22) are arranged one by one corresponding to the support plates (21) and fixed on the corresponding support plates (21); A plurality of connecting rods (23) are arranged one-to-one corresponding to the support plates (21), one end of which is hinged on the corresponding second mounting plate (16), and the other end of which is hinged on the corresponding support plate (21); A second limiting nut (25) is threadedly connected to the corresponding connection area or the circumferential side wall of the Nth hollow sleeve shaft; the second limiting nut (25) is located on a side of the second mounting plate (16) away from the first mounting plate (15); The first spring (17) is sleeved on the corresponding connection area or the circumferential side wall of the Nth hollow sleeve shaft; it is located between the second mounting plate (16) and the second limiting nut (25); the two ends of the first spring (17) are respectively in contact with the second limiting nut (25) and the second mounting plate (16), and the first spring (17) is in a compressed state; The scraping assembly also includes: Two first limiting nuts (24) are threadedly connected to the corresponding connection area or the circumferential side wall of the Nth hollow sleeve shaft; the first limiting nuts (24) are respectively located on both sides of the first mounting plate (15) along the X direction, and the two first limiting nuts (24) are respectively in contact with the first mounting plate (15) and are used to connect the first mounting plate (15) to the corresponding connection area or the circumferential side wall of the Nth hollow sleeve shaft; The second spring (18) is sleeved on the corresponding connection area or the circumferential side wall of the Nth hollow sleeve shaft; one end of the second spring abuts against a surface of one side of the second mounting plate (16) close to the first mounting plate (15), and the other end abuts against the corresponding first limiting nut (24), and the second spring (18) is in a compressed state.

2. A water conservancy pipeline inner wall cleaning device according to claim 1, characterized in that: A plurality of support rods (2) are fixed to the side of the first connecting plate (1) away from the connecting sleeve assembly, and a second connecting plate (3) is commonly fixed to the side of each support rod (2) away from the first connecting plate (1). The non-rotating shaft end of the motor (4) is fixed to the second connecting plate (3), and the rotating shaft of the motor (4) passes through the second connecting plate (3). The second connecting plate (3) is provided with a hole through which the rotating shaft of the power supply machine (4) passes, and the rotating shaft of the motor (4) is connected to the rotating shaft (5) via a coupling (6).

3. A water conservancy pipeline inner wall cleaning device according to claim 1, characterized in that: The diameters of the second gears (13) of the gear units are the same, and the diameters of the first gears (12) of the first gear unit, the second gear unit, ..., and the Nth gear unit gradually increase.

4. A water conservancy pipeline inner wall cleaning device according to claim 1, characterized in that: The gear assembly is provided in two groups.

5. A water conservancy pipeline inner wall cleaning device according to claim 1, characterized in that: The number of the hollow sleeve shafts is 3.

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