CN111215405A - Automatic scale scraping equipment for large-diameter tubular structure - Google Patents
Automatic scale scraping equipment for large-diameter tubular structure Download PDFInfo
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- CN111215405A CN111215405A CN202010091628.2A CN202010091628A CN111215405A CN 111215405 A CN111215405 A CN 111215405A CN 202010091628 A CN202010091628 A CN 202010091628A CN 111215405 A CN111215405 A CN 111215405A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/049—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes, i.e. self-propelled
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Abstract
The invention relates to the field of pipeline descaling, in particular to an automatic descaling device for a large-caliber tubular structure, which comprises: the wall scraping mechanism is used for scraping dirt on the inner wall of the tubular structure; running gear is connected with scraping wall mechanism for the drive is scraped wall mechanism walking and is accomplished and strike off the action, running gear includes: a housing having a cylindrical structure; the fixed shaft is arranged in the shell and positioned on the axis of the shell, and two ends of the fixed shaft are fixed on two ends of the shell; the first roller assembly is arranged at one end of the fixed shaft and comprises a plurality of first rollers, the first rollers are arranged on the same circumference at equal angles relative to the axis of the fixed shaft, and the distance between the first rollers and the axis of the fixed shaft is adjustable; and the second roller assembly is arranged at the other end of the fixed shaft and comprises a plurality of second rollers, the plurality of second rollers are arranged on the same circumference at equal angles relative to the axis of the fixed shaft, the distance between the second rollers and the axis of the fixed shaft is adjustable, and the first rollers and the second rollers enable the travelling mechanism to travel along the direction of the axis of the fixed shaft. The automatic scale scraping device can automatically scrape dirt in tubular structures with different diameters.
Description
Technical Field
The invention relates to the field of pipeline descaling, in particular to automatic scale scraping equipment for a large-caliber tubular structure.
Background
Piping refers to a device for transporting a gas, liquid or fluid with solid particles connected by pipes, pipe couplings, valves, etc. Generally, a fluid is pressurized by a blower, a compressor, a pump, a boiler, etc., and then flows from a high pressure portion to a low pressure portion of a pipe, or is transported by the pressure or gravity of the fluid itself. The use of pipelines is very widespread, mainly in water supply, drainage, heating, gas supply, long-distance oil and gas delivery, agricultural irrigation, hydraulic engineering and various industrial installations. Various pipes are cleaned before use, and some pipes are cleaned regularly. For cleaning convenience, a filter or a purge hole is provided on the pipe. In the pipeline for long distance petroleum and natural gas transportation, the cleaner is used to clean the dirt accumulated in the pipeline regularly, and a special device for sending and receiving the cleaner is provided for this purpose. In the process of cleaning large water pipes or other pipelines which are put into practical use for a long time, the large water pipes or other pipelines are mostly cleaned in a high-pressure water flushing mode, and dirt attached to the pipe walls cannot be flushed completely by the spray heads.
Disclosure of Invention
The invention aims to provide automatic scale scraping equipment for a large-diameter tubular structure, which can scrape off dirt on the tubular structure and can achieve a better cleaning effect compared with simple washing.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automatic descaling device for large-caliber tubular structures, comprising:
the wall scraping mechanism is used for scraping dirt on the inner wall of the tubular structure;
running gear is connected with scraping wall mechanism for the drive is scraped wall mechanism walking and is accomplished and strike off the action, running gear includes:
a housing having a cylindrical structure;
the fixed shaft is arranged in the shell and positioned on the axis of the shell, and two ends of the fixed shaft are fixed on two ends of the shell;
the first roller assembly is arranged at one end of the fixed shaft and comprises a plurality of first rollers, the first rollers are arranged on the same circumference at equal angles relative to the axis of the fixed shaft, and the distance between the first rollers and the axis of the fixed shaft is adjustable;
and the second roller assembly is arranged at the other end of the fixed shaft and comprises a plurality of second rollers, the plurality of second rollers are arranged on the same circumference at equal angles relative to the axis of the fixed shaft, the distance between the second rollers and the axis of the fixed shaft is adjustable, and the first rollers and the second rollers enable the travelling mechanism to travel along the direction of the axis of the fixed shaft.
Preferably, the second roller assembly further comprises a second sleeve ring fixed on the fixed shaft, a plurality of telescopic rods fixed on the second sleeve ring and extending along the radial direction of the fixed shaft, and a wheel carrier arranged at one end of each telescopic rod far away from the second sleeve ring, the second roller is rotatably arranged on the wheel carrier, the plane where each second roller is located passes through the axis of the fixed shaft, the rotation axis of each second roller is perpendicular to the axis of the fixed shaft, a second spring always in a compressed state is sleeved on each telescopic rod, and the telescopic rods always have an extension tendency by the second spring.
Preferably, the first roller assembly includes a plurality of first synchronizing wheels and a plurality of second synchronizing wheels having the same number as the first synchronizing wheels, the first synchronizing wheels are connected to the corresponding second synchronizing wheels through support rods, the first synchronizing wheels and the corresponding second synchronizing wheels are rotatable relative to the support rods, the first synchronizing wheels and the corresponding second synchronizing wheels are driven through synchronous belts, the first rollers are disposed on the second synchronizing wheels, the first rollers and the corresponding second synchronizing wheels are coaxially disposed and parallel to the corresponding second rollers, the first synchronizing wheels are rotatably fixed on the inner wall of the housing, a plane on which the first synchronizing wheels are disposed passes through an axis of the fixed shaft, a rotation axis of the first synchronizing wheels is perpendicular to the axis of the fixed shaft, and a rotation axis of the second synchronizing wheels is parallel to a rotation axis of the corresponding first synchronizing wheels.
Preferably, first wheel components still includes that slidable ground overlaps establishes on the fixed axle and be located the first lantern ring between second lantern ring and the first gyro wheel, every bracing piece with be provided with the head rod between the first lantern ring, head rod one end is articulated with the first lantern ring that corresponds, and the other end is articulated with the bracing piece that corresponds to on the fixed axle and be located the cover between first lantern ring and the second lantern ring and be equipped with first spring, first spring is in the state of compressed all the time.
Preferably, a first end face gear is rotatably disposed at a position of the fixed shaft close to the first roller assembly, a second end face gear is disposed at one side of the first synchronizing wheel, a bracket is fixed at one end of the fixed shaft close to the first roller assembly, the fixed shaft is fixed at one end of the housing through the bracket, shaft seats are disposed at positions of the bracket corresponding to each first roller, a transmission shaft is disposed on each shaft seat, transmission gears are disposed at two ends of the transmission shaft, and the transmission gears at two ends of the transmission shaft are respectively engaged with the first end face gear and the second end face gear.
Preferably, the traveling mechanism further comprises a driving motor arranged in the housing, a driving gear is arranged on an output shaft of the driving motor, a tooth of the first face gear deviates from the second roller assembly, a driven gear is arranged on one side of the first face gear facing the first roller assembly, and the driving gear is meshed with the driven gear.
Preferably, the wall scraping mechanism comprises a circular ring which is rotatably arranged at the outer side of one end of the shell close to the first roller assembly and is coaxially arranged with the fixed shaft, and a plurality of wall scraping connecting rods of which the ends are hinged on the circular ring, the plurality of wall scraping connecting rods are arranged at equal angles relative to the circular ring, and one ends far away from the circular ring of the wall scraping connecting rods can be contacted with the inner wall of the tubular structure.
Preferably, the wall scraping connecting rod comprises a second connecting rod, a scraping rod and a torsion spring, one end of the second connecting rod is hinged to the circular ring, the scraping rod is hinged to the other end of the second connecting rod, the torsion spring is arranged at the hinged position of the second connecting rod and the scraping rod, an included angle formed by the second connecting rod and the axis of the fixed shaft and deviating from one side of the first roller assembly is smaller than 90 degrees, and the torsion spring always has the tendency that the scraping rod rotates towards the direction far away from the axis of the fixed shaft.
Preferably, a central gear is coaxially and concentrically arranged in the circular ring, a plurality of pinion gears are arranged between the central gear and the circular ring, a ring of teeth is arranged on the inner wall of the circular ring, the pinion gears are respectively meshed with the central gear and the circular ring, and the plurality of pinion gears are rotatably arranged on one end of the shell.
Preferably, the wall scraping mechanism further comprises a linkage ring, each second connecting rod is connected with the linkage ring through a third connecting rod, one end of each third connecting rod is hinged with the corresponding second connecting rod, the other end of each third connecting rod is hinged with the linkage ring, and the linkage ring can move back and forth along the axis of the fixed shaft.
The invention has the beneficial effects that: the automatic scale scraping equipment can scrape off the dirt on the tubular structure, and compared with simple washing, the automatic scale scraping equipment can scrape off the dirt which is more firmly adhered to the tubular structure; the maximum diameter of the equipment with the travelling mechanism and the wall scraping mechanism can be adjusted, so that the equipment can be suitable for tubular structures with different diameters.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an exploded perspective view of the present invention;
FIG. 3 is a partial perspective view of the present invention;
FIG. 4 is a first schematic view of the internal three-dimensional structure of the walking device;
FIG. 5 is a schematic view of the internal three-dimensional structure of the walking device;
FIG. 6 is a first perspective view of the wall scraping apparatus;
FIG. 7 is an enlarged schematic view taken at A in FIG. 6;
fig. 8 is a schematic perspective view of the wall scraping device.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
As shown in fig. 1 to 8, an automatic scraping device for a large-caliber tubular structure comprises a wall scraping mechanism for scraping dirt on the inner wall of the tubular structure and a traveling mechanism for driving the wall scraping mechanism to travel and complete a scraping action.
The walking mechanism comprises a fixing shaft 2, a first roller assembly and a second roller assembly, wherein the first roller assembly is arranged at one end of the fixing shaft 2, the second roller assembly is arranged at the other end of the fixing shaft 2, the first roller assembly and the second roller assembly are used for supporting the fixing shaft 2, the first roller assembly is provided with a plurality of first rollers 3, the second roller assembly is provided with a plurality of second rollers 4 with the same number as the first rollers 3, the plurality of first rollers 3 and the plurality of second rollers 4 are respectively arranged in an equiangular mode relative to the axis of the fixing shaft 2, and when the axis of the fixing shaft 2 is observed, the first rollers 3 are aligned with the second rollers 4 one by one. And, the first roller 3 and the second roller 4 are adjustable from the axis of the fixed shaft 2 to be able to adapt to tubular structures of different diameter sizes. The first roller 3 and the second roller 4 each have at least three.
The second roller assembly further comprises a second collar 22 fixed on the fixed shaft 2, a plurality of telescopic rods 23 fixed on the second collar 22 and extending along the radial direction of the fixed shaft 2, and a wheel frame 24 arranged at one end of each telescopic rod 23 far away from the second collar 22, the second rollers 4 are rotatably arranged on the wheel frame 24, the plane of each second roller 4 passes through the axis of the fixed shaft 2, and the rotation axis of each second roller 4 is perpendicular to the axis of the fixed shaft 2. Each telescopic rod 23 is sleeved with a second spring 41 which is always in a compressed state, and the second spring 41 enables the telescopic rod 23 to be always in an extended state so as to enable the second roller 4 to be always abutted against the inner wall of the tubular structure.
The first roller assembly comprises a plurality of first synchronizing wheels 17 and second synchronizing wheels 18 with the same number as the first synchronizing wheels 17, the first synchronizing wheels 17 are connected with the second synchronizing wheels 18 through supporting rods 14, the first synchronizing wheels 17 and the second synchronizing wheels 18 can rotate relative to the supporting rods 14, the first synchronizing wheels 17 and the second synchronizing wheels 18 are driven through synchronous belts 15, the first rollers 3 are arranged on the second synchronizing wheels 18, and the first rollers 3 and the corresponding second synchronizing wheels 18 are coaxially arranged and are parallel to the corresponding second rollers 4.
The travelling mechanism further comprises a shell 1 in a cylindrical structure, and the fixed shaft 2 is fixed in the shell 1. Avoidance holes 16 are formed in the positions, corresponding to the first roller 3 and the second roller 4, of the shell 1, and the first roller 3 and the second roller 4 penetrate out of the corresponding avoidance holes 16. Preferably, the first synchronizing wheel 17 is rotatably fixed to the inner wall of the housing 1. The plane of the first synchronous wheel 17 passes through the axis of the fixed shaft 2, the rotation axis of the first synchronous wheel 17 is perpendicular to the axis of the fixed shaft 2, and the rotation axis of the second synchronous wheel 18 is parallel to the rotation axis of the corresponding first synchronous wheel 17.
Further, the first roller assembly further comprises a first collar 20 slidably sleeved on the fixing shaft 2 and located between a second collar 22 and the first roller 3, a first connecting rod 21 is arranged between each supporting rod 14 and the first collar 20, one end of each first connecting rod 21 is hinged to the corresponding first collar 20, the other end of each first connecting rod is hinged to the corresponding supporting rod 14, a first spring 19 is sleeved on the fixing shaft 1 and located between the first collar 20 and the second collar 22, and the first spring 19 is always in a compressed state so that the first collar 20 always has a force pushing the first roller 3 to abut against the inner wall of the tubular structure. Of course, in order to ensure that the first collar 20 moves within a certain range in a direction away from the second collar 22, a stop (not shown) may be provided on the stationary shaft 2 on a side of the first collar 20 facing away from the second collar 22, and when the first collar 20 moves to abut against the stop, the first collar cannot move further in a direction away from the second collar 22. Preferably, the maximum angle of the support bar 14 to the axis of the fixed shaft 2 towards the first connecting bar 21 is less than 90 °. The limiting block can be a screw or a pin. Because the first collar 20 can slide, the axes of the first roller 3 and the fixed shaft 2 can be adjusted, and thus the pipe diameter structure with different diameters can be suitable.
Further, a first face gear 7 is rotatably provided at a position of the fixed shaft 2 adjacent to the first roller assembly, and a second face gear 13 is provided at one side of the first synchronizing wheel 17. A bracket 8 is fixed at one end of the fixed shaft 2 close to the first roller assembly, and the fixed shaft 2 is fixed at one end of the shell 1 through the bracket 8. The position of the support 8 corresponding to each first roller 3 is provided with a shaft seat 11, each shaft seat 11 is provided with a transmission shaft, two ends of each transmission shaft are respectively provided with a transmission gear 12, the transmission gears 12 at the two ends of each transmission shaft are respectively meshed with the first end face gear 7 and the second end face gear 13, and when the first end face gear 7 rotates, all the first rollers 3 can be driven to rotate simultaneously. Preferably, the first face gear 7, the second face gear 13 and the transmission gear 12 are all conical teeth.
The teeth of the first end face gear 7 are away from the second roller assembly, and a driven gear 9 is arranged on one side of the first end face gear 7 facing the first roller assembly. The traveling mechanism further comprises a driving motor 6 arranged in the shell 1, a driving gear 10 is arranged on an output shaft of the driving motor 6, the driving gear 10 is meshed with the driven gear 9, the rotation of the driving motor 6 is controlled to control the rotation of the first roller 3, and the second roller 4 is a driven wheel and can move back and forth under the driving of the first roller 3.
The wall scraping mechanism comprises a circular ring 27 which is rotatably arranged at the outer side of one end of the shell 1 close to the first roller assembly and is coaxially arranged with the fixed shaft 2, and a plurality of wall scraping connecting rods 5 of which the end parts are hinged on the circular ring 27, wherein the wall scraping connecting rods 5 are arranged at equal angles relative to the circular ring 27, one end of each wall scraping connecting rod 5 far away from the circular ring 27 can be in contact with the inner wall of the tubular structure, and then dirt on the inner wall of the tubular structure can be removed when the wall scraping connecting rods 5 rotate.
Preferably, the wall scraping connecting rod 5 comprises a second connecting rod 32 with one end hinged with the circular ring 27, a scraping rod 33 hinged with the other end of the second connecting rod 32 and a torsion spring 34 arranged at the hinged position of the second connecting rod 32 and the scraping rod 33, and the included angle between the second connecting rod 32 and the side of the axis of the fixed shaft 2, which is far away from the first roller assembly, is less than 90 degrees. Preferably, said torsion spring 34 always has a tendency to rotate the scraping bar 33 in a direction away from the axis of the fixed shaft 2, which enables the scraping bar 33 to always abut against the inner wall of the tubular structure to scrape off the dirt on the inner wall of the tubular structure when the scraping bar 33 rotates around the rotation axis of the fixed shaft 2. Meanwhile, a limit structure may be provided at the hinge joint of the first link 32 and the scraping bar 33 to ensure that the torsion spring 34 rotates the scraping bar 33 with respect to the first link 32 within a certain range, and preferably, the limit structure rotates the maximum position of the scraping bar 33 to be parallel to the first link 32.
Further, a central gear 26 is coaxially and concentrically arranged in the circular ring 27, a plurality of pinion gears 28 are arranged between the central gear 26 and the circular ring 27, a ring of teeth are arranged on the inner wall of the circular ring 27, the pinion gears 28 are respectively meshed with the central gear 26 and the circular ring 27, and the circular ring 27 can be driven to rotate by rotating the central gear 26, so that the scraping rod 33 can be driven to rotate. A plurality of pinion gears 28 are rotatably provided on one end of the housing 1, the sun gear 26 rotating the pinion gears 28, and the pinion gears 28 rotating the ring 27. A rotating shaft 29 is provided at a position of the housing 1 corresponding to the pinion 28, and the pinion 28 is rotatably provided on the corresponding rotating shaft 29. The diameter of the pinion 28 is smaller than that of the sun gear 26 to provide a speed increasing effect.
The wall scraping mechanism further comprises a linkage ring 37, each second connecting rod 32 is connected with the linkage ring 37 through a third connecting rod 40, one end of each third connecting rod 40 is hinged to the corresponding second connecting rod 32, the other end of each third connecting rod is hinged to the linkage ring 37, the linkage ring 37 can move back and forth along the axis of the fixed shaft 2, the opening angle of the second connecting rods 32 can be adjusted, the second connecting rods 32 can be adjusted according to different tubular structures, the linkage ring 37 cannot move during operation, and therefore the second connecting rods 32 cannot contract automatically when the scraping rod 33 works, and sufficient and stable acting force is guaranteed.
Further, the wall scraping mechanism further comprises a circular end cover 30, the circular end cover 30 is fixed on one side of the circular ring 27, which faces away from the shell 1, so as to cover the sun gear 26 and the pinion gear 28, and the circular end cover 30 is fixed on the circular ring 27 and rotates together with the circular ring 27. The threaded rod 36 is connected to the axis of the circular end cover 30 through threads, one end of the threaded rod 36 is connected with the circular end cover 30 through a bearing, the other end of the threaded rod 36 is connected with the linkage ring 37 through threads, when the threaded rod 36 rotates relative to the linkage ring 37, the threaded rod 36 can move back and forth along the axis of the linkage ring 37 to further pull the linkage ring 37 to move back and forth, and when the linkage ring 37 moves back and forth, the distance between one end, far away from the circular ring 27, of the second connecting rod 32 and the axis of the fixed shaft 2 can be changed, so that the tubular structures with different diameters can be suitable for.
The circular end cap 30 is bolted to the end of the housing 1 adjacent the first roller assembly, the circular end cap 30 being non-rotatable relative to the housing 1, the circular end cap 30 pressing the ring 27 against the end of the housing 1. And, the outer fringe of circular end cover 30 and the outer fringe of casing 1 form the annular groove that is used for placing ring 27, ring 27 is slidable in the annular groove and then can realize the rotation of ring 27.
Since the link ring 37 needs to rotate during operation and the threaded rod 36 needs to rotate along with the link ring 37, in order to avoid that the threaded rod 36 rotates along with the link ring 37 during operation, nuts can be arranged on the threaded rod 36 and on both sides of the link ring 37, and after the angle of the second connecting rod 32 is adjusted, the threaded rod can be screwed down by the nuts to abut on both sides of the threaded rod 36.
Further, a connecting cylinder 261 is arranged on the axis of one side, facing the fixed shaft 2, of the central gear 26, one end, far away from the central gear 26, of the connecting cylinder 261 is in transmission connection with the first end face gear 7, and then the first roller 3 and the scraping rod 33 can be driven to rotate simultaneously through the first end face gear 7, so that the effect that dirt on the inner wall of the tubular structure can be scraped while advancing along the axis of the tubular structure can be achieved. When mounting, one end of the fixing shaft 2 is inserted into the connecting cylinder 261, and a bearing may be provided between the fixing shaft 2 and the connecting cylinder 261 to ensure smooth rotation of the connecting cylinder 261. The connecting cylinder 261 penetrates through the bracket 8, a bearing can be arranged between the connecting cylinder 261 and the bracket 8, and the bracket 8 is arranged on the shell 1, namely the bracket 8 supports the connecting cylinder 261 and one end of the fixed shaft 2 and does not influence the rotation of the connecting cylinder 261.
It should be understood that the above-described embodiments are merely preferred embodiments of the invention and the technical principles applied thereto. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, such variations are within the scope of the invention as long as they do not depart from the spirit of the invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.
Claims (10)
1. An automatic descaling device for large-caliber tubular structures, comprising:
the wall scraping mechanism is used for scraping dirt on the inner wall of the tubular structure;
running gear is connected with scraping wall mechanism for the drive is scraped wall mechanism walking and is accomplished and strike off the action, running gear includes:
a housing having a cylindrical structure;
the fixed shaft is arranged in the shell and positioned on the axis of the shell, and two ends of the fixed shaft are fixed on two ends of the shell;
the first roller assembly is arranged at one end of the fixed shaft and comprises a plurality of first rollers, the first rollers are arranged on the same circumference at equal angles relative to the axis of the fixed shaft, and the distance between the first rollers and the axis of the fixed shaft is adjustable;
and the second roller assembly is arranged at the other end of the fixed shaft and comprises a plurality of second rollers, the plurality of second rollers are arranged on the same circumference at equal angles relative to the axis of the fixed shaft, the distance between the second rollers and the axis of the fixed shaft is adjustable, and the first rollers and the second rollers enable the travelling mechanism to travel along the direction of the axis of the fixed shaft.
2. The automatic scale scraping device for the large-caliber tubular structure as claimed in claim 1, wherein the second roller assembly further comprises a second sleeve ring fixed on the fixed shaft, a plurality of telescopic rods fixed on the second sleeve ring and extending along the radial direction of the fixed shaft, and a wheel frame arranged at one end of each telescopic rod far away from the second sleeve ring, the second rollers are rotatably arranged on the wheel frame, the plane of each second roller passes through the axis of the fixed shaft, the rotation axis of each second roller is perpendicular to the axis of the fixed shaft, a second spring in a compressed state is sleeved on each telescopic rod, and the second spring enables the telescopic rods to have a tendency to stretch all the time.
3. An automatic scale scraping apparatus for a large-caliber tubular structure according to claim 1, wherein the first roller assembly comprises a plurality of first synchronizing wheels and a second synchronizing wheel having the same number as the first synchronizing wheels, the first synchronizing wheels are connected with the corresponding second synchronizing wheels through support rods and are rotatable relative to the support rods, the first synchronizing wheels and the corresponding second synchronizing wheels are driven through synchronous belts, the first rollers are disposed on the second synchronizing wheels, the first rollers are disposed coaxially with the corresponding second synchronizing wheels and are parallel to the corresponding second rollers, the first synchronizing wheels are rotatably fixed on the inner wall of the housing, the first synchronizing wheels are disposed on a plane passing through the axis of the fixed shaft and the rotation axis of the first synchronizing wheels is perpendicular to the axis of the fixed shaft, the axis of rotation of the second synchronizing wheel is parallel to the axis of rotation of the corresponding first synchronizing wheel.
4. The automatic scale scraping device for the large-caliber tubular structure as claimed in claim 3, wherein the first roller assembly further comprises a first sleeve ring slidably sleeved on the fixed shaft and located between the second sleeve ring and the first roller, a first connecting rod is arranged between each supporting rod and the first sleeve ring, one end of each first connecting rod is hinged to the corresponding first sleeve ring, the other end of each first connecting rod is hinged to the corresponding supporting rod, and a first spring is sleeved on the fixed shaft and located between the first sleeve ring and the second sleeve ring and always in a compressed state.
5. The automatic scale scraping device for the large-caliber tubular structure as claimed in claim 4, wherein a first face gear is rotatably disposed at a position of the fixed shaft close to the first roller assembly, a second face gear is disposed at one side of the first synchronous wheel, a bracket is fixed at one end of the fixed shaft close to the first roller assembly, the fixed shaft is fixed at one end of the housing through the bracket, a shaft seat is disposed at a position of the bracket corresponding to each first roller, a transmission shaft is disposed on each shaft seat, a transmission gear is disposed at each end of the transmission shaft, and the transmission gears at each end of the transmission shaft are respectively engaged with the first face gear and the second face gear.
6. The automatic scale scraping device for the large-caliber tubular structure as claimed in claim 5, wherein the walking mechanism further comprises a driving motor arranged in the housing, an output shaft of the driving motor is provided with a driving gear, a tooth of the first face gear is away from the second roller assembly, a side of the first face gear facing the first roller assembly is provided with a driven gear, and the driving gear is meshed with the driven gear.
7. An automatic scraping device for large-caliber tubular structures as claimed in claim 6, wherein the wall scraping mechanism comprises a circular ring which is rotatably arranged at the outer side of one end of the shell close to the first roller assembly and is coaxially arranged with the fixed shaft, and a plurality of wall scraping connecting rods of which the ends are hinged on the circular ring, the plurality of wall scraping connecting rods are equiangularly arranged relative to the circular ring, and one ends of the wall scraping connecting rods far away from the circular ring can be contacted with the inner wall of the tubular structure.
8. The automatic scale scraping device for the large-caliber tubular structure as claimed in claim 7, wherein the wall scraping connecting rod comprises a second connecting rod with one end hinged with the circular ring, a scraping rod hinged with the other end of the second connecting rod and a torsion spring arranged at the hinged position of the second connecting rod and the scraping rod, the included angle between the axis of the second connecting rod and the fixed shaft and the side of the axis of the first roller assembly are smaller than 90 degrees, and the torsion spring always has the tendency that the scraping rod rotates towards the direction far away from the axis of the fixed shaft.
9. An automatic scale scraping apparatus for a large diameter tubular structure according to claim 7, wherein a central gear is coaxially and concentrically arranged within the ring, a plurality of pinion gears are arranged between the central gear and the ring, a ring of teeth is arranged on the inner wall of the ring, the pinion gears are respectively engaged with the central gear and the ring, and the plurality of pinion gears are rotatably arranged on one end of the housing.
10. An automatic scraping apparatus for large caliber tubular structures as claimed in claim 8, wherein the scraping mechanism further comprises a link ring, each second link is connected with the link ring through a third link, and one end of the third link is hinged with the corresponding second link, and the other end is hinged with the link ring, the link ring can move back and forth along the axis of the fixed shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010091628.2A CN111215405A (en) | 2020-02-13 | 2020-02-13 | Automatic scale scraping equipment for large-diameter tubular structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010091628.2A CN111215405A (en) | 2020-02-13 | 2020-02-13 | Automatic scale scraping equipment for large-diameter tubular structure |
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| CN111215405A true CN111215405A (en) | 2020-06-02 |
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| CN202010091628.2A Withdrawn CN111215405A (en) | 2020-02-13 | 2020-02-13 | Automatic scale scraping equipment for large-diameter tubular structure |
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| CN118253546A (en) * | 2024-05-30 | 2024-06-28 | 合肥市紫蓬园林工程有限公司 | Drainage pipeline dredging device for garden irrigation |
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| CN111821939A (en) * | 2020-08-18 | 2020-10-27 | 衡阳市九州建材有限公司 | Reation kettle that polycarboxylate water reducing agent preparation was used |
| CN112095702A (en) * | 2020-09-03 | 2020-12-18 | 刘哲 | Dredging device for farmland irrigation water culvert |
| CN112264404A (en) * | 2020-10-23 | 2021-01-26 | 韩沛成 | Pipeline cleaning robot |
| CN112747486A (en) * | 2021-03-01 | 2021-05-04 | 杨启 | Solar water heater thermal-collecting tube cleaning device |
| CN113374985A (en) * | 2021-06-02 | 2021-09-10 | 厦门吾桑贸易有限公司 | Pipeline exploration vehicle |
| CN115255958A (en) * | 2022-08-09 | 2022-11-01 | 宁波东大恒丰汽车零部件有限公司 | Car stabilizer bar apparatus for producing |
| CN116274207A (en) * | 2023-04-03 | 2023-06-23 | 郯城县鹏程印务有限公司 | Printing is with sewage bucket inner wall cleaning device |
| CN116960828A (en) * | 2023-09-20 | 2023-10-27 | 济南展兴信息技术有限公司 | High-altitude net twine laying equipment |
| CN116960828B (en) * | 2023-09-20 | 2023-11-24 | 济南展兴信息技术有限公司 | High-altitude net twine laying equipment |
| CN118253546A (en) * | 2024-05-30 | 2024-06-28 | 合肥市紫蓬园林工程有限公司 | Drainage pipeline dredging device for garden irrigation |
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Application publication date: 20200602 |