CN114147018A - Oil storage tank mechanical cleaning device with large deformability - Google Patents
Oil storage tank mechanical cleaning device with large deformability Download PDFInfo
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- CN114147018A CN114147018A CN202111318616.XA CN202111318616A CN114147018A CN 114147018 A CN114147018 A CN 114147018A CN 202111318616 A CN202111318616 A CN 202111318616A CN 114147018 A CN114147018 A CN 114147018A
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- cleaning device
- oil storage
- storage tank
- mechanical cleaning
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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
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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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
- B08B9/08—Cleaning containers, e.g. tanks
Abstract
A mechanical cleaning device with large deformation capacity for an oil storage tank comprises a vehicle body module (10), a crawler belt module (20), a jacking module (30), a deformation module (40) and a driving mechanism (50), wherein the crawler belt module (20) is symmetrically arranged at two sides of the vehicle body module (10) along a traveling centerline (o-o) direction in a rotatable driving manner; the jacking module (30) is hinged to the vehicle body module (10); the deformation module (40) is simultaneously coupled with the track module (20) and the jacking module (30), the deformation module (40) is connected with the driving mechanism (50), and the cleaning device is switched between a contraction state and an expansion state through the action of the driving mechanism (50); the oil storage tank mechanical cleaning device with large deformation capacity has the advantages that the structure is simple, the crawler belt module, the jacking module and the crawler belt module are switched between the contraction form and the expansion form, and the oil storage tank mechanical cleaning device has larger deformation capacity compared with a plane link mechanism.
Description
Technical Field
The invention relates to the technical field of machinery of gas stations, in particular to a mechanical cleaning device for an oil storage tank with high deformability.
Background
The oil storage tank is a container for storing oil products and ranges from dozens of cubic meters to 20000m3And forming a series specification. Cylindrical shapes, generally vertical or horizontal, are most widely used. The structure of the tank is provided with a vault tank and a floating roof tank. The finished oil is stored in the oil tank for a long time, impurities such as moisture, sand, soil, rust, heavy metal salts and the like in the oil product can be gradually deposited at the bottom of the tank to form viscous black gelatinous oil sludge which can influence the quality of the oil product, corrode the tank body and accessories and reduce the oil storage tankThe oil storage tank must be periodically cleaned because of the volume and electrostatic accident. The oil tank cleaning operation environment has the following characteristics: the tank field is explosive hazardous gas environment, and the operating space is narrow complicated, and the metal tank body can shield communication signal. Therefore, the explosion-proof water jet mechanical cleaning is used for replacing the manual cleaning.
The water jet method cleaning is that clean water is firstly filtered by a filter to remove particles and impurities, then the clean water is pressurized to 0.5-35M Pa by a high-pressure pump, a pump man rotates a spray head to drive the spray head to rotate in a spherical surface of 360 degrees, the whole inner wall of a buried storage tank is cleaned by water pressure, a vacuum pump is started simultaneously, sewage and waste liquid at the bottom of the storage tank is pumped out to a sewage tank to be collected, and after cleaning is finished, the oil tank is swept by a ventilator until the whole inner wall of the tank is dry, and the oil-gas concentration in the tank is monitored by an oil-gas concentration detector in real time, so that the safety and the environmental protection of the whole process are ensured.
The prior art has the following technical problems:
(1) the corner of the vertical oil tank can not be cleaned completely
Although 360-degree water jet is adopted, the adhered oil sludge at the corner of the wall is adhered to the vertical wall and the bottom wall at the same time, and the adhered oil sludge at the corner of the wall is difficult to clean. French hydroglide discloses a tank cleaning device (publication No. FR2963746a1, published as 2012.2.17) in which a cleaning cart 10 is pulled into a horizontal tank by a suction pipe 12, the suction pipe 12 sucks a cleaning liquid through a suction port abutting against the bottom surface, and the cleaning cart 10 sprays a water jet 15 through a rotary nozzle 13 fixed to the end of a lifting arm 13 to clean the tank. However, the cleaning of the sludge between the two ends and the bottom wall of the horizontal oil tank is relatively difficult, and unclean parts can occur.
(2) The function of access through the manhole limits the miniaturisation of the working conditions of the cleaning machine
Typically the cleaning machine enters the tank through a tank wall manhole, typically 25 inches in diameter (i.e. 25x25.4 ═ 635mm), in a reduced radial dimension. Such a reduced radial dimension is usually achieved by means of a deformable linkage arrangement, for example, US LANDRY SERVICE CO INC discloses a tank cleaning system (publication No. US5640982A, published as 1997.6.24), the two walking tracks 26, 27 are connected by a parallelogram 29, the walking tracks 26, 27 are fixedly connected to the long parallel side of the parallelogram 29, the piston rod 34 of the cylinder 28 is hinged to a short parallel side of the parallelogram 29, the piston rod 34 of the cylinder extends out, the width of the parallelogram 29 becomes thicker, and the walking tracks 26, 27 are driven by the long parallel side to the open position. When the piston rod 34 of the cylinder is retracted, the width of the parallelogram 29 is narrowed, and the traveling crawler belts 26 and 27 are moved to the closed position by the long parallel sides in a staggered manner. In the closed position, the cleaning machine may enter the tank through a manhole. The disadvantages of the above-mentioned washing machines are: the parallelogram mechanism prevents the dimensional change in the two positions from being too great, resulting in a limited width of the running gear and a small footprint. The walking mechanism is carried with the water pipe and the suction pipe, and the small landing area affects the load capacity of the walking mechanism.
In conclusion, a cleaning machine with large deformation capacity is explored, the cleaning machine can easily pass through a manhole in a first state, has large floor area in a second state, has excellent load capacity, and is a key problem to be solved urgently in mechanical cleaning in the oil tank oil storage and gas station industry.
Disclosure of Invention
In view of the above-mentioned drawbacks in the prior art, an object of the present invention is to provide a mechanical cleaning device with large deformation capability, which solves the technical problems of "easily passing through a manhole in a first state, having a large landing area in a second state, and having excellent load capacity".
The invention aims to realize the purpose, and the mechanical cleaning device with large deformation capacity for the oil storage tank is characterized by comprising
A body module having a line of travel midpoint along a length direction at a midpoint of a width thereof, the body module for carrying a functional unit including a jet and a suction;
the crawler belt modules are symmetrically arranged on two sides of the vehicle body module in a rotary driving manner along the direction of the advancing median line and are used for bearing the vehicle body module;
the lifting module is hinged to the vehicle body module and used for bearing the jet flow functional unit;
the cleaning device comprises a deformation module and a driving mechanism, wherein the deformation module is simultaneously coupled and connected with a jacking module, the deformation module is connected with the driving mechanism, and the cleaning device is switched between a contraction form and an expansion form through the action of the driving mechanism;
in the contraction state, the crawler belt module and the jack module are simultaneously positioned at the contraction position, so that the cleaning device is positioned in an outline circle with the diameter phi of 600mm along the cross section perpendicular to the advancing median line; in the unfolding and lifting state, the crawler belt modules and the lifting modules are simultaneously positioned at unfolding and lifting positions, and the maximum distance between the two crawler belt modules is equal to 1.0-1.5 times of the lifting height of the lifting modules.
Further, the deformation module comprises a left slider structure and a right slider structure, the left slider structure is fixedly connected with the left crawler belt module perpendicular to the moving centerline, the right slider structure is fixedly connected with the right crawler belt module perpendicular to the moving centerline, and the left slider structure and the right slider structure are coupled and connected with the driving mechanism, so that the left slider structure and the right slider structure are relatively and simultaneously far away from or approach to each other.
Further, the jacking module comprises a jacking rotary table, the follow-up rotary seat is coaxially, rotatably and slidably matched with the jacking rotary table, the jacking rotary table is coaxially, rotatably and drivingly provided with a rotating worm, a follow-up worm wheel is fixed on the follow-up rotary seat, and the follow-up worm wheel is meshed and matched with the rotating worm through worm wheel teeth; the top surface of the follow-up swivel base is fixedly connected with a lifting rod, the rotating worm is coupled with a driving mechanism and used as power input, and the follow-up worm wheel drives the follow-up swivel base to be meshed with the rotating worm to rotate by a certain angle, so that the lifting rod is switched between a contraction position and a lifting position.
Further, the driving mechanism is arranged on the vehicle body module; the driving mechanism comprises a sun gear and 4 planetary gears, and the 4 planetary gears are fixed on the vehicle body module in a full circle and centrosymmetric manner; the left sliding block structure and the right sliding block structure are respectively provided with a rack, and the sun gear is fixedly connected with an output shaft of the hydraulic motor; the deformation module is connected with the driving mechanism and is realized as follows: two planetary gears at the upper and lower positions on the left side are respectively meshed with a middle gear, and the middle gear is meshed with a rack of a left sliding block structure; two planetary gears at the upper and lower positions on the right side are directly meshed with the rack of the right sliding block structure so as to drive the left sliding block structure and the right sliding block structure to be relatively and simultaneously far away or approach.
Further, the deformation module is coupled with the lifting module to realize that: the deformation module further comprises a first bevel gear fixedly arranged on the rotating worm, a second planetary gear meshed with the periphery of the sun gear is arranged on the median line, a second bevel gear is coaxially arranged on the second planetary gear, the first bevel gear is meshed with the second bevel gear, and the first bevel gear and the second bevel gear are equal in tooth number.
Furthermore, the middle gear, the second middle gear, the rack of the left sliding block structure and the rack of the right sliding block structure, the first bevel gear and the second bevel gear are all equal in tooth number and modulus.
Further, the maximum stroke of the sliding blocks of the left sliding block structure and the right sliding block structure and the rotation angle of the lifting rod are used for determining the number of teeth and the modulus of the rotary worm and the follower worm wheel.
Further, the crawler belt module comprises a parallelogram frame, the parallelogram frame comprises a lower long rod, a right short rod, an upper long rod and a left short rod which are connected in an end-to-end hinged mode, a telescopic oil cylinder is connected between the lower long rod and the upper long rod in a hinged mode, a piston rod of the telescopic oil cylinder extends out of the retraction position to the extension position, and therefore the crawler belt module is switched between the retraction position and the extension position.
Furthermore, the crawler belt module comprises a driving wheel and a driven wheel, the driving wheel is rotatably arranged at two ends of the lower long rod of the parallelogram frame, the driven wheel is rotatably arranged at two ends of the upper long rod, and the outer peripheral surfaces of the driving wheel and the driven wheel are respectively meshed with a closed-loop crawler belt.
Furthermore, a rotating included angle is formed between the right short rod and the lower long rod of the parallelogram frame, the corresponding rotating included angle of the contraction position of the crawler belt module is zero, and the corresponding rotating included angle of the expansion position is larger than 0 degree and smaller than or equal to any angle value between 60 degrees.
The oil storage tank mechanical cleaning device with large deformation capacity has the advantages that the structure is simple, the crawler belt module, the jack-up module and the crawler belt module are switched between the contraction form and the expansion form, the deformation capacity is higher compared with a plane link mechanism, the space width of the crawler belt is larger when the cleaning device works, and the landing load capacity is increased by at least one time.
Drawings
Fig. 1 is a plan view of a mechanical cleaning device for an oil storage tank according to an embodiment of the present invention in a contracted state.
Fig. 2 is a sectional view a-a of fig. 1 showing a mechanical cleaning apparatus for an oil storage tank having a large deformability according to a first embodiment of the present invention.
Fig. 3 is a left sectional view of fig. 1 of a mechanical cleaning device for an oil storage tank having a large deformation capability according to a first embodiment of the present invention.
Fig. 4 is a top view of a mechanical cleaning device for a storage tank with a large deformation capacity according to an embodiment of the present invention in an expanded state.
Fig. 5 is a sectional view a-a of fig. 4 showing a mechanical cleaning apparatus for an oil storage tank having a large deformability according to a first embodiment of the present invention.
Fig. 6 is a left sectional view of fig. 4 of a first embodiment of the mechanical cleaning device for an oil storage tank with large deformability of the present invention.
Reference numerals in the above figures:
10 body module, 11 body frame part, 12 left slideway and 13 right slideway
20 track module, 21 drive wheel, 22 driven wheel, 23 closed loop track, 24 hydraulic motor
30 lifting modules, 31 lifting turntables, 32 follow-up rotary bases, 33 lifting rods, 34 lifting positioning blocks and 35 platform plates
40 deformation module, 41 left slide block structure, 42 right slide block structure, 43 rotating worm, 44 follower worm wheel, 45 parallelogram frame, 46 hinge pin, 47 telescopic oil cylinder, 48 first bevel gear, 49 second bevel gear
451 lower long rod, 452 upper long rod, 453 left short rod, 454 right short rod, alpha rotation included angle, theta platform included angle
50 driving mechanism, 51 sun gear, 52 planetary gear, 53 intermediate gear, 54 hydraulic motor, 55 second planetary gear, 56 second intermediate gear and 57 travel switch
Detailed Description
The following detailed description of the embodiments of the present invention is provided in connection with the accompanying drawings, but is not intended to limit the scope of the invention.
Example 1
As shown in figures 1 and 2, the mechanical cleaning device for the oil storage tank with large deformation capacity comprises a vehicle body module 10, a crawler belt module 20 and a jacking module 30, wherein the vehicle body module 10 is provided with a line of travel middle o-o at the position of the width middle point along the length direction and is used for bearing a functional unit for jet flow and suction, and the maximum outline dimension of the vehicle body module 10 along the direction perpendicular to the line of travel middle o-o is smaller than the manhole diameter of the oil storage tank. The crawler belt modules 20 are symmetrically arranged on two sides of the vehicle body module 10 in a rotatable driving manner along the direction of the line o-o of the center of travel, and are used for bearing the vehicle body module 10. The top surface of the vehicle body module 10 is rotatably provided with an elevating module 30, the elevating module 30 is used for bearing a jet flow module, and the jet flow module is connected with a high-pressure fluid source and used for cleaning.
The body module 10 includes a frame portion 11, and to increase the stability of the cleaning device, the weight of the frame portion 11 is itself a weight block. The rear part in the frame part 11 is provided with a pipeline distribution block made of light materials, and the pipeline distribution block is connected with all hydraulic pipelines and power cables in a centralized manner. The body module 10 is connected to a grounding chain to prevent static buildup. The frame portion 11 is provided with a left slide rail 12 and a right slide rail 13 for guiding the deformation module 40, and the left slide rail 12 and the right slide rail 13 are arranged in a staggered manner in the front-rear direction in the center line direction.
The crawler belt module 20 comprises a parallelogram frame 45, two hinged end points of a first diagonal line of the parallelogram frame 45 are respectively and rotatably provided with a driving wheel 21, two hinged end points of a second diagonal line are respectively and rotatably provided with a driven wheel 22, and the peripheral surfaces of the driving wheel 21 and the driven wheel 22 are respectively meshed with a closed-loop crawler belt 23. Two hinge pins 46 are respectively arranged between the lower long rod 451 and the upper long rod 452 of the parallelogram frame 45, a telescopic oil cylinder 47 is hinged between the two hinge pins 46, and a rotary included angle alpha is formed between the right short rod 454 of the parallelogram frame 45 and the lower long rod 451. The extension of the piston rods of the telescopic cylinders 47 from the retracted position to the extended position causes the included angle of rotation a to vary between 0 deg. -60 deg., thereby causing the overall height of the track module 20 to vary from H0Is raised to H1。H0＝DDriving device+2S，DDriving deviceIs the diameter of the driving wheel in mm, and S is the thickness of the crawler in mm. And H1＝HRack+DDriving device+2S, wherein, HRackIs the height of the parallelogram in mm. The track module 20 is switched between a retracted position and an extended position, the height of the track module 20 being from H0Is raised to H1. In the contraction position, the gravity center of the cleaning device is lowered, so that the cleaning device can conveniently pass through a manhole; in the deployed and lifted position, the cleaning device is enhanced through obstacle capability, and the cleaning device can be cleaned conveniently. One of the driving wheels 21 is fixedly connected to a hydraulic motor 24. The drive wheel 21 transmits the torque of the hydraulic motor 24 to the closed loop track 23 to provide power for advancing the cleaning apparatus. The closed-loop track 23 of the track module 20 is coated with a rubber material to prevent sparks from being generated due to metal collision.
The lifting module 30 includes a lifting turntable 31, the lifting turntable 31 has a lifting rotation axis u-u, the lifting turntable 31 is fixed to the body module 10 with the lifting rotation axis u-u perpendicular to the traveling centerline o-o, and the lifting turntable 31 is provided with a rotating worm 43. The follow-up rotary seat 32 is rotatably arranged on the jacking rotary table 31. The follow-up rotation seat 32 is fixedly connected with the lifting rod 33, the follow-up rotation seat 32 is fixedly connected with a follow-up worm wheel 44, the outer surface of the follow-up worm wheel 44 is provided with worm wheel teeth, and the follow-up worm wheel 44 is matched with the rotating worm 43. The rotating worm 43 is used as power input, and the follower worm wheel 44 meshed with the rotating worm 43 drives the follower rotation seat 32 to rotate within a certain angle range, so that the lifting rod 33 is switched between the contraction position and the expansion position.
The lifting rod 33 is provided with a platform plate 35, and the platform plate 35 and the lifting rod 33 form a platform included angle theta. In the deployed and lifted state, the lifting included angle α of the lifting rod 33 relative to the car body module 10 is equal to 180- θ, so that the platform plate 34 is positioned in a certain horizontal plane; and in the contracted form, the lifting rod 33 is in the contracted form, and the lifting rod lies on the top surface of the car body module.
The outer surface of the follower worm wheel 44 is engaged with the rotary worm 43 to have self-locking capability. As long as the rotary worm 43 does not rotate, the follower worm wheel 44 does not rotate because the follower worm wheel 44 cannot drive the rotary worm 43 to rotate, the worm can drive the worm wheel, and the worm wheel cannot drive the worm instead. The lifting bar 33 is provided with a deployment and lifting locating block 34, which positioning block 34 abuts against the body module 10 when the lifting bar 33 is in the deployed and lifting position. The lifting rod 33 and the positioning block 34 of the lifting module 30 are both coated with rubber materials to prevent sparks generated by metal collision.
A deformation module 40 is also included, the deformation module 40 being capable of switching the cleaning apparatus between a retracted configuration and an extended configuration. In the retracted configuration, track modules 20 and jack modules 30 are simultaneously in the retracted position, so that the cleaning device lies within a contour circle of diameter Φ 635mm along a cross section perpendicular to the line of travel o-o; in the deployed and raised configuration, the track modules 20 and the jack modules 30 are simultaneously in the deployed and raised position with the maximum separation W between the track modules 201Equal to 1.0-1.5 times of the jack height H, and optimally 1.2-1.5 times, so as to ensure the lateral stability of the cleaning device.
The deformation module 40 comprises a left slider structure 41, a right slider structure 42, said left slider structure 41 being fixedly connected on its side to the left-hand track module 20 perpendicular to the mid-travel line o-o, and said right slider structure 42 being fixedly connected on its side to the right-hand track module 20 perpendicular to the mid-travel line o-o. The left slider structure 41 and the right slider structure 42 are coupled with the driving mechanism 50, so that the left slider structure 41 and the right slider structure 42 are relatively far away from or approach to each other at the same time, at the far away limit position, the left slider structure 41 and the right slider structure reach the maximum stroke L (as shown in fig. 4), the cleaning device is in the unfolding and lifting state, and the maximum distance W between the crawler belt modules 20 at the two sides1Greater than or equal to 800mm, the maximum spacing W between two track modules 201Equal to 1.0-1.5 times of the lifting height H of the lifting module 30, and the excellent load capacity of the cleaning device is measured by the torque allowance of the longitudinal stability and the transverse stability of the cleaning device; at the approximate limit, the cleaning device is in a retracted configuration with the track modules 20 on either side hidden beneath the body modules 10 and the minimum spacing W between the track modules 20 on either side0Less than 600mm, the left section cross section of the cleaning device is positioned in the contour circle with the diameter phi 635mm, and is preferably positioned in the contour circle with the diameter phi 400 and 600 mm.
The driving mechanism 50 includes a sun gear 51 and 4 planetary gears 52 engaged with the sun gear 51, the 4 planetary gears 52 are fixed on the frame part 11 in a full circle 360 ° centrosymmetric manner, and the driving mechanism 50 is provided on the body module 10. The 4 planetary gears 52 are only driven to rotate and output, and the sun gear 51 is used as a driving rotation input. The two planetary gears 52 at the left upper and lower positions are rotated in opposite directions to the two planetary gears 52 at the right side by meshing with the intermediate gear 53. The two left upper and lower planet gears 52 are respectively engaged with the left slider structure 41 through the intermediate gear 53, and the two right upper and lower planet gears 52 are directly engaged with the right slider structure 42.
The left slider structure 41 and the right slider structure 42 are arranged in the front and the rear guide sliding cylinders of the frame part 11 in parallel along the direction vertical to the crawler belt module 20, the left slider structure 41 comprises two left sliders 411 matched in the front and the rear guide sliding cylinders, and the two left sliders 411 are respectively and fixedly connected with the upper long rod 211 of the left crawler belt module 20 through connecting rods; the two right sliding blocks 421 respectively fitted in the front and rear two guiding cylinders are respectively fixedly connected to the upper long rod 211 of the right crawler module 20 through a connecting rod, so that the left sliding block structure 41 and the right sliding block structure 42 drive the crawler module 20 to relatively move away from or approach to each other.
The drive mechanism 50 is fixedly connected to an output shaft of a hydraulic motor 54 via a sun gear 51. The deformation module 40 is driven by the hydraulic motor 54, and the left slider structure 41 and the right slider structure 42 respectively move between the far limit position and the approaching limit position in the guide sliding hole 43 at the same time. When the left and right slider structures 41 and 42 are respectively located far away from the limit positions, the maximum distance W between the track modules 20 on both sides1More than or equal to 800mm, the cleaning device is in a spread and lifted state. When the left slider structure 41 and the right slider structure 42 are respectively located at the approaching limit positions, the cleaning device is in a contracted state. Travel switches 57 are provided in the left and right slideways 12, 13, and when the travel switches are activated, the drive of the hydraulic motor 54 is stopped.
The driving mechanism 50 is coupled to the lifter module 30. Specifically, a first bevel gear 48 is fixed on a rotary worm 43 of the lift module 30, a sun gear 51 of the driving mechanism 50 is provided with a second planetary gear 55 meshed with the periphery on a median line, the second planetary gear 55 is meshed with at least one second intermediate gear 56, a second bevel gear 49 is coaxially and fixedly arranged on the second intermediate gear 56, the second planetary gear 55 drives the second intermediate gear 56 and the second bevel gear 49 to rotate, the second bevel gear 49 drives the first bevel gear 48 and the rotary worm 43 to rotate, the rotary worm 43 drives a follower worm gear 44 and a rotary base 34 to rotate, and the rotary base 34 drives the lift rod 36 to switch between a contraction position and a lifting position.
Meanwhile, the middle gear 53, the second middle gear 56, the racks of the left slider structure 41 and the right slider structure 42, the first bevel gear 48 and the second bevel gear 49 have the same number of teeth and module. The maximum slide stroke L of the left and right slide block structures 41 and 42 and the rotation angle of the lifting rod 35 are used to determine the number of teeth and the modulus of the rotary worm 43 and the follower worm gear 44.
The technical points are as follows:
the utility model provides an oil storage tank machinery belt cleaning device with big deformability, includes automobile body module 10, crawler belt module 20 and rises module 30, and crawler belt module 20 and rising module 30 are connected in deformation module 40 coupling simultaneously, and actuating mechanism 50 is connected to deformation module 40, and deformation module 40 passes through actuating mechanism 50 and acts, makes crawler belt module 20 and rising module 30 switch between the form is lifted at shrink form and exhibition simultaneously. Meanwhile, the driving mechanism 50 is a planetary gear mechanism, and the mutual meshing of the gears has self-locking capability.
The mechanical cleaning device with the large deformation capacity for the oil storage tank solves the technical problems that the mechanical cleaning device can easily pass through a manhole in a first state, has large landing area in a second state and has excellent load capacity by the following means:
1. the deformation module 40 cooperates with the driving mechanism 50 to simultaneously complete the contraction and expansion of the two track modules, the jack module and the track module.
The mechanical cleaning device has a contraction shape and an expansion shape, and corresponds to the contraction position and the expansion position of the space between the left crawler module 20 and the right crawler module 20 of the vehicle body, the contraction position and the expansion position of the lifting rod of the lifting module 30, and the contraction position and the expansion position of the crawler module 20.
The deformation module 40 includes left and right slider structures 41 and 42, and the driving mechanism 50 is a planetary gear mechanism or a multi-cavity cylinder 60, and provides power for relatively approaching or separating the left and right slider structures 41 and 42 through coupling connection with the driving mechanism 50.
Secondly, the deformation module 40 further comprises a follow-up worm gear 44 meshed with a rotating worm 43, and the rotating worm 43 is coupled with a gear ring 52 through a first bevel gear so as to utilize a driving mechanism 50 to simultaneously drive the rotation force of the jacking module 30 from the contraction position to the expansion position.
And the deformation module 40 further comprises a parallelogram frame 45 and a telescopic oil cylinder 47, wherein the telescopic oil cylinder 47 drives the crawler module to switch between a contraction position and an expansion position.
2. The driving mechanism is matched with the deformation module, so that the contraction form is reduced, and the expansion form is increased.
On one hand, the left and right slide block structures are perpendicular to the advancing median o-o, namely the crawler belt modules 20 perpendicular to the two sides of the vehicle body, the relative approaching or departing distances of the left and right slide block structures are effective distances, and compared with the fact that the rotation of a link mechanism is converted into the approaching or departing vertical distance, the contraction distance of the two crawler belt modules 20 is shortened, and meanwhile, the expanding distance is increased;
on the other hand, the left and right slider structures 41 and 42 can be hidden under the vehicle body module, so that the distance between the two crawler belt modules is further reduced when the vehicle body module contracts. The wider vehicle body module also provides a longer slide way for the left and right slide block structures to slide for the unfolding and lifting form. In this way, track module 20 itself can also be made relatively wider, increasing the footprint area.
3. The driving mechanism 50 is designed to provide power cooperatively and has self-locking function
According to the invention, the planetary gear mechanism is utilized, the sun gear 51 is rotationally input, the four planetary gears 52 are meshed with the sun gear 51 to reversely rotate, and the planetary gears 52 are meshed with the racks of the left and right sliding block structures 41 and 42, so that the opening and closing of the left and right sliding block structures 41 and 42 are skillfully realized. At the same time, the second planetary gear engages the first bevel gear through its coaxially disposed second bevel gear to provide rotational power to the rotating worm 43. The rotating worm 43 drives the following worm gear 44 to rotate, so that the lifting rod of the lifting module 30 is switched between the contraction position and the expansion position.
Moreover, the gear engagement has a mechanical self-locking capability, so long as the sun gear 51 does not rotate, the entire mechanism does not rotate.
The oil storage tank mechanical cleaning device with large deformation capacity has the advantages that the structure is simple, the crawler belt module, the jack-up module and the crawler belt module are switched between the contraction form and the expansion form, the deformation capacity is higher compared with a plane link mechanism, the space width of the crawler belt is larger when the cleaning device works, and the landing load capacity is increased by at least one time.
Claims (10)
1. An oil storage tank mechanical cleaning device with large deformation capacity is characterized by comprising
A body module (10), the body module (10) having a line of travel mid-way (o-o) lengthwise at a midpoint location of its width, the body module (10) for carrying functional units including jets and suction;
the crawler belt modules (20) are symmetrically arranged on two sides of the vehicle body module (10) along the direction of the travel centerline (o-o) in a rotatable driving manner and are used for bearing the vehicle body module (10);
the lifting module (30) is hinged to the vehicle body module (10), and is used for bearing the jet flow functional unit;
the cleaning device comprises a deformation module (40) and a driving mechanism (50), wherein the deformation module (40) is simultaneously coupled and connected with a jacking module (30), the deformation module (40) is connected with the driving mechanism (50), and the cleaning device is switched between a contraction form and an expansion form through the action of the driving mechanism (50);
in the contracted configuration, the crawler module (20) and the jack module (30) are simultaneously in the contracted position, so that the cleaning device is positioned within a profile circle with a diameter phi 600mm along a cross section perpendicular to a line of travel median (o-o); in the deployed and lifted configuration, the track modules (20) and the jack module (30) are simultaneously in the deployed and lifted position with a maximum spacing (W) between the track modules (20)1) Equal to 1.0 to 1.5 times of the lifting height (H) of the lifting module (30).
2. The mechanical cleaning device for the oil storage tank with the large deformation capacity as claimed in claim 1, wherein the deformation module (40) comprises a left slider structure (41) and a right slider structure (42), the left slider structure (41) is fixedly connected with the left track module (20) perpendicular to the middle line of travel (o-o), the right slider structure (42) is fixedly connected with the right track module (20) perpendicular to the middle line of travel (o-o), and the left slider structure (41) and the right slider structure (42) are coupled with a driving mechanism (50) so that the left slider structure (41) and the right slider structure (42) are relatively far away from or approach to each other simultaneously.
3. The mechanical cleaning device for the oil storage tank with the large deformation capacity as claimed in claim 2, wherein the jacking module (30) comprises a jacking rotary table (31), the follow-up rotary base (32) is coaxially and rotatably matched with the jacking rotary table (31) in a sliding manner, the jacking rotary table (31) is coaxially and rotatably provided with a rotating worm (43) in a driving manner, the follow-up rotary base (32) is fixedly provided with a follow-up worm wheel (44), and the follow-up worm wheel (44) is meshed and matched with the rotating worm (43) through worm wheel teeth; the top surface of the follow-up rotating seat (32) is fixedly connected with a lifting rod (35), the rotating worm (43) is coupled with a driving mechanism (50) to be used as power input, and the follow-up worm wheel (44) drives the follow-up rotating seat (34) to be meshed with the rotating worm (32) to rotate for a certain angle, so that the lifting rod (35) is switched between a contraction position and a stretching position.
4. The mechanical cleaning device for the oil storage tank with large deformation capacity as claimed in claim 3, characterized in that the driving mechanism (50) is provided on the vehicle body module (10); the driving mechanism (50) comprises a sun gear (51) and 4 planetary gears (52), and the 4 planetary gears (52) are fixed on the vehicle body module (10) in a full-circle centrosymmetric manner; the left sliding block structure (41) and the right sliding block structure (42) are respectively provided with a rack, and a sun gear (51) is fixedly connected with an output shaft of a hydraulic motor (54); the deformation module (40) is connected with the driving mechanism (50) and is realized as follows: two planet gears (52) at the upper and lower positions on the left side are respectively meshed with a middle gear (53), and the middle gear (53) is meshed with a rack of the left sliding block structure (41); two planetary gears (52) at the upper and lower positions on the right side directly engage with the rack of the right slider structure (42) so as to drive the left slider structure (41) and the right slider structure (42) to relatively and simultaneously move away from or approach.
5. The mechanical cleaning device for the oil storage tank with large deformation capacity as claimed in claim 4, wherein the deformation module (40) is coupled with the lifting module (30) and is realized as follows: the deformation module (40) further comprises a first bevel gear (48) fixedly arranged on the rotating worm (43), a second planetary gear (55) meshed with the periphery of the sun gear (51) is arranged on the median line, a second bevel gear (49) is coaxially arranged on the second planetary gear (55), the first bevel gear (48) is meshed with the second bevel gear (49), and the number of teeth of the first bevel gear is equal to that of the second bevel gear.
6. The mechanical cleaning device for the oil storage tank with the large deformation capacity of claim 4, wherein the middle gear (53), the second middle gear (56), the rack of the left slider structure (41) and the rack of the right slider structure (42), the first bevel gear (48) and the second bevel gear (49) are equal in tooth number and module.
7. The mechanical cleaning device for the oil storage tank with large deformation capacity as claimed in claim 4, characterized in that the number of teeth and the modulus of the rotating worm (43) and the follower worm wheel (44) are determined by the maximum stroke (L) of the slide blocks of the left slide block structure (41) and the right slide block structure (42) and the rotation angle of the lifting rod (35).
8. A mechanical cleaning device for oil storage tanks with large deformation capacity as claimed in any one of claims 1-7, characterized in that the track module (20) comprises a parallelogram frame (45), the parallelogram frame (45) comprises a lower long rod (451), a right short rod (454), an upper long rod (452) and a left short rod (453) which are hinged end to end, a telescopic cylinder (47) is hinged between the lower long rod (451) and the upper long rod (452), and a piston rod of the telescopic cylinder (47) extends from a retracted position to an extended position, thereby switching the track module (20) between a retracted position and a raised position.
9. A mechanical cleaning device for oil storage tank with large deformation capacity as claimed in claim 8, wherein the track module (20) comprises a driving wheel (21) rotatably installed at both ends of the lower long rod of the parallelogram frame (45) and a driven wheel (22) rotatably installed at both ends of the upper long rod (452), the outer peripheral surfaces of the driving wheel (21) and the driven wheel (22) are respectively engaged with the closed loop track (23).
10. The mechanical cleaning device for the oil storage tank with large deformation capacity as claimed in claim 8, characterized in that a rotation angle (α) is formed between the right short rod (454) and the lower long rod (451) of the parallelogram frame (45), the contraction position of the crawler module (20) corresponds to the rotation angle (α) being zero degree, and the expansion position corresponds to any angle value between the rotation angle (α) being more than 0 ° and less than or equal to 60 °.
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| CN202111318616.XA CN114147018B (en) | 2021-11-09 | 2021-11-09 | Oil storage tank mechanical cleaning device with large deformability |
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