CN210104948U - Pipeline dredging vehicle with adjustable threaded wheels - Google Patents
Pipeline dredging vehicle with adjustable threaded wheels Download PDFInfo
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- CN210104948U CN210104948U CN201920472848.2U CN201920472848U CN210104948U CN 210104948 U CN210104948 U CN 210104948U CN 201920472848 U CN201920472848 U CN 201920472848U CN 210104948 U CN210104948 U CN 210104948U
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Abstract
The utility model discloses a pipeline desilting car with adjustable screw thread wheel, include: the thread wheels are symmetrically arranged and each thread wheel comprises a first thread wheel positioned at the front section, a second thread wheel positioned at the middle section and a third thread wheel positioned at the tail section, the three thread wheels are coaxially connected, and the thread line of the first thread wheel is a conical thread line; the supporting frame comprises four pairs of supporting plates, two first connecting rods and a telescopic rod, wherein two pairs of supporting plates are arranged between the first section of threaded wheel and the second section of threaded wheel, and the other two pairs of supporting plates are arranged between the second threaded wheel and the third threaded wheel; the two first connecting rods are respectively connected with all the supporting plates positioned on the same side, and the telescopic rods are connected with the two first connecting rods; a mud suction cover connected to the support frame; and a screw wheel drive motor. During normal walking and dredging, the screw wheel rotates to generate forward thrust between the screw thread and the ground, and the sediment is stirred and crushed in the rotating process of the screw thread and is conveyed to a sludge suction port at the tail part of the screw wheel.
Description
Technical Field
The utility model relates to a pipeline desilting equipment, concretely relates to pipeline desilting car with adjustable screw thread wheel.
Background
Pipeline dredging is a difficult problem for municipal pipe networks, and the sludge in the pipeline is usually cleaned out of the pipeline by adopting a high-pressure cleaning vehicle for washing or adopting methods such as manual traction, push-pull and the like. The modes are only suitable for dredging projects of pipe networks with light siltation degree and short distance, and construction difficulty and labor intensity can be obviously increased for pipelines with long distance and serious blockage.
For example, chinese patent application publication No. CN 109440915a discloses a dredging robot for sewer pipes, where the protection level of the entire vehicle reaches IP 68. The dredging robot for the sewer pipeline comprises a crushing device, a vehicle body main structure, a top wheel device, an electric control integrated system, a driving device, a swing arm rotating device, an observation mirror and a control box. The robot is provided with auxiliary tools such as a crushing device at the forefront end, a required tool system is configured according to the field operation environment, and the tool system adopts electric power as a power source, so that the operation reliability is improved.
Chinese patent application publication No. CN 106351326a discloses a pipeline dredging apparatus, comprising: the wheel of pipeline desilting equipment adopts the athey wheel, and the wheel is collapsible to be less than the pipe diameter, and it is slightly greater than the pipe diameter to expand to have certain elasticity, and the push pedal in desilting equipment the place ahead is semi-circular, is made by the rubber material, and desilting equipment power is provided by the battery, respectively one along installation electric light and camera in the push pedal, and the waterproofing measure is done to the complete machine.
In order to improve dredging efficiency and reduce operation risk, a small robot is adopted to replace manual operation of going into a well, however, the internal environment of the pipeline is complex, and the commonly adopted wheel type and crawler type dredging robots often have the problems of weak obstacle avoidance capability and insufficient traction force, and cannot play a full role in the pipeline with serious siltation.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pipeline desilting car with adjustable two screw thread wheels. During normal walking and dredging, the screw wheel rotates to generate forward thrust between the screw thread and the ground, and the sediment is stirred and crushed in the rotating process of the screw thread and is conveyed to a sludge suction port at the tail part of the screw wheel.
A pipeline dredging vehicle with adjustable double-threaded wheels, comprising:
the thread wheels are symmetrically arranged and each thread wheel comprises a first thread wheel positioned at the front section, a second thread wheel positioned at the middle section and a third thread wheel positioned at the tail section, the three sections of thread wheels are coaxially connected, and the thread line of the first thread wheel is a conical thread line;
the supporting frame comprises four pairs of supporting plates, at least two first connecting rods and a telescopic rod, wherein two pairs of supporting plates are arranged between a first section of threaded wheel and a second section of threaded wheel, the other two pairs of supporting plates are arranged between a second threaded wheel and a third threaded wheel, the two supporting plates in each pair of supporting plates are symmetrically arranged, the tops of the two supporting plates are hinged with each other, the bottoms of the two supporting plates penetrate through rotating shafts of the corresponding threaded wheels respectively, the first connecting rods are connected with all the supporting plates on the same side respectively, the telescopic rod is arranged between two cross rods in the same horizontal plane, and the two ends of the telescopic rod are connected with the corresponding connecting rods respectively;
the mud suction cover is positioned behind the third threads along the advancing direction and is connected to a pair of supporting plates of the supporting frame, which are close to one side of the mud suction cover, through a second connecting rod, a mud suction port of the mud suction cover is opposite to the space between the two third threads, and a mud outlet is connected with a mud suction pipe;
and the screw wheel driving motor is arranged on the supporting frame and drives the pair of screw wheels to rotate oppositely in the running process.
The utility model discloses a screw thread wheel traction force is strong when being as advancing mechanism, is applicable to various complicated pipeline internal environment, in particular the utility model discloses a screw thread wheel when being advancing mechanism, as broken mechanism of mud and mud transport mechanism, the toper screw thread wheel of front end can carry out fine breakage to the sediment, the interlude mainly used advances, stirs silt simultaneously, it becomes loose to make silt become, also play certain transport effect simultaneously, the back end screw thread section also has the same effect, but the predominant use is to inhaling mud cover mouth transport mud. The rear two sections of threaded wheels rotate in opposite directions in the process of passing, so that sludge is conveyed backwards and better enters a sludge suction port.
The flexible interval between two adjustable screw thread wheels of telescopic link, the intraductal silt of better clearance, the desilting of adaptable different pipe diameters simultaneously, perhaps clean the area through adjusting the expansion of screw thread wheel interval.
Preferably, the taper flare angle range of the first threaded wheel is 5-10 degrees, the spiral thread pitch is 1-10 cm, and the maximum diameter of the thread is smaller than or equal to the diameter of the second threaded wheel. The second helical wheel and the third helical wheel are both common helical wheels, and the diameter ratio of the thread diameter to the rotating shaft is 1.1-2.
Further preferably, in order to better exert the conveying function of the third-stage screw thread, the third screw thread wheel has a smaller diameter than the second screw thread wheel and keeps a certain distance from the wall surface (the distance is determined by the diameter of the third screw thread wheel), and sludge is conveyed to the sludge suction hood opening.
Preferably, each pair of support plates are connected at the top ends through connecting pieces, and the connecting pieces are hinged with the corresponding support plates; the four connecting sheets are connected through a third connecting rod penetrating through the centers of all the connecting sheets, and the third connecting rod is fixedly connected with the corresponding connecting sheet.
Further preferably, the four pairs of support plates are a first pair of support plates, a second pair of support plates, a third pair of support plates and a fourth pair of support plates in sequence from the third threaded wheel to the first threaded wheel; and a pair of pin shafts which are parallel to each other and are respectively positioned at two sides of the third connecting rod are respectively arranged between the connecting sheets of the first pair of supporting plates and the connecting sheets of the second pair of supporting plates and between the connecting sheets of the third pair of supporting plates and the connecting sheets of the fourth pair of supporting plates, two ends of each pin shaft are fixedly connected with the corresponding connecting sheets, and the corresponding supporting plates are hinged with the connecting sheets through the pin shafts.
Preferably, the four pairs of support plates have the same outer contour and are all irregular shapes, wherein one long side is a straight side, the other long side opposite to the straight side is an arc side, the top end of the long side is provided with a section of sharp corner gradually reduced towards the arc side, the bottom end of the long side is provided with a section of connecting part gradually reduced towards the arc side, and when the four pairs of support plates are installed, the straight side faces inwards, the arc side faces outwards and are in A-shaped symmetry.
The included angle part at the top of each supporting plate is provided with a through hole, the corresponding positions at the two ends of each connecting sheet are provided with through holes, the two ends of the pin shaft respectively penetrate through the corresponding supporting plates and the through holes on the connecting sheets, and the pin shaft is fixedly connected with the supporting sheets and is hinged with the supporting plates. The connection mode between the first pair of support plates and the second pair of support plates and the connection mode between the third pair of support plates and the fourth pair of support plates are the same. The two ends of the third connecting rod respectively penetrate through the centers of the corresponding connecting sheets and are fixedly connected, and the pin shafts are symmetrically positioned on the two sides of the third connecting rod and are parallel to the third connecting rod.
All set up the through-hole on the connecting portion of backup pad bottom for pass corresponding screw thread wheel pivot, all backup pads all can rotate around corresponding screw thread wheel pivot.
Preferably, the sludge suction cover is gradually reduced from one end of the sludge suction port to one end of the sludge outlet, and the bottom of the sludge suction cover is in an arc shape attached to the pipe wall; the sludge suction port is connected with a sludge pipe, and the sludge pipe is connected with a sludge pump.
The mud sucking cover is in a square or arch shape, the height and the width or the radius of the mud sucking cover are made according to the size of a used pipeline, but the width of the mud sucking cover is not less than the maximum width of the spiral advancing mechanism in a combined state. Generally, an arch shape of 1/8 to 1/4 with a diameter of 100mm to 800mm and a height of the diameter is preferred. The shape can be well attached to the inner wall of a round pipeline, and if the pipeline is a square pipeline, the inlet is preferably a mud suction cover with a rectangular cross section. The outlet at the rear end of the sludge suction cover is connected with a sludge pipe flange.
Preferably, a pair of supporting plates close to one side of the mud suction cover are provided with arc-shaped slotted holes extending horizontally; the connecting rod fastener is in sliding fit with the two arc-shaped slotted holes and comprises a cross rod and sliding rings arranged at two ends of the cross rod, and the sliding rings are in sliding fit connection with the corresponding arc-shaped slotted holes; one end of the second connecting rod is sleeved on the cross rod of the connecting fastener in a penetrating way and can rotate around the cross rod. The sliding ring of the connecting rod fastener is matched with the slotted hole of the width adjusting mechanism, and the sliding ring can move in the slotted hole but cannot be separated from the slotted hole. The arc-shaped slotted hole is used for the sliding ring of the connecting rod fastener to slide along the slotted hole, and the arc-shaped slotted hole moves by taking the through hole at the top of the supporting plate as the center and the slotted hole center as the radius.
When the telescopic rod extends, the distance between the threaded wheels is increased, the height of the support frame is reduced, the sliding ring of the connecting rod fastener slides along the slotted hole to adapt to the changed height, at the moment, the mud suction cover is pushed to move backwards in an adaptive manner under the action of the second connecting rod, and otherwise, the mud suction cover is pulled to move forwards in an adaptive manner. After the height is fixed, the sludge suction cover is supported in the sludge pipe by the bottom of the sludge suction cover and is dragged to move forwards by the support frame.
Preferably, the bottom of the mud suction cover is an arc surface attached to the inner wall of the pipeline; the other end of the second connecting rod is fixedly connected with the top surface of the mud suction cover.
Further preferably, inhale the top of mud cover and set up two fixed blocks, the both ends of a pivot with correspond to rotate between the fixed block and be connected, the axis perpendicular to screw thread wheel's of pivot center pin sets up, the pivot driving motor is passed through the shaft coupling to one of them end of pivot, the cover is worn to overlap and fixed connection in this pivot by the second connecting rod. The range of the acute angle included angle formed by the second connecting rod and the horizontal plane is adjustable within 15-45 degrees.
The top of the mud suction cover is provided with a fixed block and a rotating shaft driving motor, and the rotating shaft penetrates through the fixed block and is connected with a shaft of the driving motor. The fixed block top is for can opening the formula design for the pivot with inhale the dismantlement of mud cover guiding mechanism. The rotating shaft driving motor is used for finely adjusting the angle of a mud suction port of the mud suction cover, so that the mud suction port is parallel to the vertical plane or forms a certain angle with the vertical plane, and the height of the mud suction port is changed.
Preferably, the first threaded wheel and the second threaded wheel and the third threaded wheel of each threaded wheel are connected through a coupler; the number of the threaded wheel driving motors is 4, the threaded wheel driving motors are respectively installed on the supporting plate and close to the positions corresponding to the couplers, and the threaded wheel driving motors are in gear transmission with the corresponding couplers.
The lower ends of the first pair of supporting plates are connected with the central shaft of the third section of threads, the lower ends of the second pair of supporting plates and the third section of supporting plates are respectively connected with the central shafts at two ends of the second section of threads, and the lower ends of the fourth pair of supporting plates are connected with the central shaft of the first section of threaded wheel. Gaps are reserved between the first pair of supporting plates and the second pair of supporting plates and between the third pair of supporting plates and the fourth pair of supporting plates and used for installing a threaded wheel driving motor, and the couplers are located between the adjacent supporting plates.
Preferably, the telescopic rod is an electric push rod. Further preferably, the electric push rod is installed at the midpoint of the two first connecting rods.
The distance between the thread wheels is adjusted by stretching and retracting the support plates through the electric push rod, and the maximum adjustable range of the included angle between two symmetrical support plates in each pair of support plates is 90 degrees. The straight edge between the two supporting plates is closed at 0 °
In order to facilitate the adjustment of the included angles between the supporting plates, preferably, all the supporting plates are irregular plates, one long side is a straight side, the other long side opposite to the straight side is an arc side, the arc sides of each pair of supporting plates are installed outwards, and the straight sides face inwards, so that the supporting plates are completely folded after being symmetrical.
Preferably, cameras are respectively arranged on the first pair of supporting plates and the fourth pair of supporting plates. The staff of being convenient for observes the desilting car and advances various situations in the pipeline.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the spiral running gear with adjustable width utilizes electric telescopic handle, adjusts the distance between two parallel helical wheels, adapts to the desilting of different pipe diameters, enlarges and cleans the area.
(2) The front end is provided with a conical helical wheel which can destroy the sludge.
(3) The dredging mechanism adopting the spiral structure has strong traction force and is suitable for various complex pipeline internal environments.
(4) The mud suction port has an arched section or a rectangular section, the bottom of the mud suction port is well attached to the pipe wall, and mud suction is more thorough.
(5) The lifting mechanism has the structure that the height adjustment of the sludge suction port does not conflict with the opening and closing of the spiral wheel.
Drawings
Fig. 1 and 2 are perspective views from different angles of the present invention.
Fig. 3 is a front view of the present invention.
Fig. 4 is a left side view of the present invention.
Fig. 5 is a plan view of the present invention.
Fig. 6 is a structural view of the mud suction cover of the utility model.
FIG. 7 is a schematic illustration of a support plate configuration for a first pair of support plates.
FIG. 8 is a schematic view of the structure of the second to fourth pairs of supporting plates
Fig. 9 is a structural schematic view of a support plate attachment piece.
Fig. 10 is a schematic view of the structure of the first helical wheel.
Fig. 11 is a schematic view of the structure of the second helical wheel.
The reference numerals shown in the figures are as follows:
1-mud suction cover 2-mud suction cover adjusting mechanism 3-support frame
4-screw advancing mechanism
11-rotating shaft 12-fixed block 13-rotating shaft driving motor
21-second link 22-link fastener
31-third connecting rod 32-first connecting rod 33-telescopic rod
34-backing plate connection piece 35-first pair of backing plates 36-second pair of backing plates
37-third pair of support plates 38-fourth pair of support plates 39-pin
341 pin shaft fixing hole 342 link rod passing hole
351-first circular aperture 352-second circular aperture 353-third circular aperture
354-arc slotted hole
361-fourth bore 362-fifth bore 363-sixth bore
41-first screw wheel 42-second screw wheel 43-third screw wheel
44-screw wheel driving motor
Detailed Description
As shown in figures 1-11, the small-sized pipeline dredging vehicle comprises a mud suction cover 1, a mud suction cover adjusting mechanism 2, a support frame 3 and a spiral advancing mechanism 4.
The bottom of the mud suction cover 1 is arc-shaped and is attached to the wall of the pipeline, one end of the mud suction opening is gradually reduced towards one end of the mud discharge opening, the mud discharge opening is connected with a mud pipe through a flange, the mud pipe is connected with a ground mud suction pump, and the surface of the mud suction opening, which is attached to the pipe wall, of the mud suction cover is perpendicular to the wall of the pipeline.
Inhale mud cover adjustment mechanism 2 and include two second connecting rods 21 that are parallel to each other and the connecting rod fastener 22 of being connected with the support frame, connecting rod fastener 22 includes the horizontal pole and is located the sliding ring at horizontal pole both ends, the one end of second connecting rod with inhale mud cover top surface fixed connection, the other end wears to overlap on the horizontal pole of connecting rod fastener and can rotate around the horizontal pole.
But second connecting rod one end snap-on is at inhaling mud cover top surface, and for the convenience to inhaling the regulation of mud mouth angle, inhales mud cover top and sets up two fixed blocks 12, and the both ends of pivot 11 are installed respectively on the fixed block that corresponds, and the axis of installation pole is on a parallel with inhales mud mouth place plane. One end of the second connecting rod connected with the mud suction cover is penetrated on the rotating shaft and is fixedly connected with the rotating shaft.
The spiral advancing mechanism 4 comprises a pair of parallel threaded wheels, each threaded wheel comprises a first threaded wheel 41 positioned at the front end, a second threaded wheel 42 positioned at the middle section and a third threaded wheel 43 positioned at the tail section, and the three threaded wheels are coaxially arranged; the second helical wheel and the third helical wheel are both common helical wheels, and the diameter ratio of the thread diameter to the diameter of the rotating shaft of the threaded wheel is 1.1-2. The diameter of the third thread wheel can also be set to be smaller than that of the second thread wheel, and a certain clearance is kept between the third thread wheel and the wall surface. The mud suction port of the mud suction cover is opposite to the space between the two third threaded wheels.
The support frame 3 comprises four pairs of support plates, two first connecting rods 32, a third connecting rod 31 and a telescopic rod 33, each pair of support plates comprises two support plates which are symmetrically arranged in an A shape, two pairs of support plates are arranged between a third threaded wheel and a second threaded wheel, the other two pairs of support plates are arranged between the second threaded wheel and the first threaded wheel, the third threaded wheel sequentially comprises a first pair of support plates 35, a second pair of support plates 36, a third pair of support plates 37 and a fourth pair of support plates 38 towards the first threaded wheel, the four pairs of support plates are identical in outline and are in irregular shapes, one long edge is a straight edge, the other opposite long edge is an arc edge, the top end of the support plate is provided with a section of sharp corner gradually reduced towards the arc edge, the bottom end of the support plate is provided with a section of connecting part which is also gradually reduced towards the arc edge, and during installation, the straight edge side faces inwards, the arc edge side.
The supporting plate structure forming the first pair of supporting plates 35 is shown in the figure, a first round hole 351 is arranged at the included angle of the top part, a second round hole 352 is arranged on the plate surface of the middle lower part, a third round hole 353 is arranged on the connecting part of the bottom part, and an arc-shaped slotted hole 354 which takes the first round hole as the center of a circle and the distance between the center of the arc-shaped slotted hole and the first round hole as the radius is arranged below the first round hole; the second, third and fourth pairs of supporting plates have the same structure, and the supporting plate structure of the second pair of supporting plates 36 is taken as an example for explanation, and the structure is as shown in fig. 8, wherein a top sharp corner is provided with a fourth round hole 361, a middle lower plate surface is provided with a fifth round hole 362, and a bottom connecting part is provided with a sixth round hole 363.
Each pair of supporting plates are connected at the top sharp corner through a supporting plate connecting sheet 34, the supporting plate connecting sheets are square sheets, pin shaft fixing holes 341 are formed in the two top corners, and connecting rods are arranged at the positions, close to the lower portion of the center, of the two top corners to penetrate through the holes 342.
Articulated connection between backup pad connection piece and the backup pad that corresponds, connect through third connecting rod 31 between the connection piece of four pairs of backup pads, the one end of third connecting rod runs through the connection piece of second pair of backup pads and the connecting rod of the connection piece of first pair of backup pad in proper order and passes hole and fixed connection, the other end passes the connection piece of third pair of backup pad and the connecting rod of the connection piece of fourth pair of backup pad in proper order and passes hole and fixed connection. A pair of pin shafts 9 are arranged between the connecting pieces of the first pair of supporting plates and the connecting pieces of the second pair of supporting plates, the pin shafts are respectively positioned on two sides of the third connecting rod and are parallel to the third connecting rod, both ends of each pin shaft are fixedly connected with the corresponding connecting pieces, and the round holes at the sharp corners of the corresponding supporting plates penetrate through the pin shafts and can rotate around the pin shafts. The connecting pieces of the third pair of supporting plates and the connecting pieces of the fourth pair of supporting plates are connected in the same way. The supporting plate connecting sheet is fixedly connected with the pin shaft, the supporting plate is rotatably connected with the pin shaft, and the supporting plate can rotate around the pin shaft.
A third round hole 353 in the bottom of the first pair of support plates penetrates through a central shaft at one end where the two third-section threaded wheels are connected with the coupler; the sixth round holes 363 at the bottoms of the second pair of support plates and the third pair of support plates are penetrated on the central shafts at the two ends of the second section of the threaded wheel; and the round holes at the bottoms of the fourth pair of threaded wheels penetrate through the central shaft at one end of the first section of threaded wheel connecting coupler. The coupling is located in front of the adjacent support plate. Two threaded wheel driving motors 44 are respectively arranged between the first pair of supporting plates and the second pair of supporting plates and between the third pair of supporting plates and the fourth pair of supporting plates, the threaded wheel driving motors are arranged close to the corresponding couplers and fixed on the corresponding supporting plates, and the threaded wheel driving motors and the corresponding couplers drive the corresponding threaded wheels to rotate through gear transmission.
One end of one of the first connecting rod 32 sequentially penetrates through the supporting plates on one side of the second pair of supporting plates and the first pair of supporting plates and is fixedly connected with the penetrating position, and the other end of the one of the first connecting rod 32 sequentially penetrates through the supporting plates on the corresponding sides of the third pair of supporting plates and the fourth pair of supporting plates and is fixedly connected with the penetrating position; one end of the other first connecting rod penetrates through the supporting plates on one side of the second pair of supporting plates and the first pair of supporting plates in sequence and is fixedly connected with the penetrating position, and the other end of the other first connecting rod penetrates through the supporting plates on the corresponding sides of the third pair of supporting plates and the fourth pair of supporting plates in sequence and is fixedly connected with the penetrating position. The two first connecting rods are positioned in a uniform horizontal plane, the two second connecting rods are connected through a telescopic rod 33, and two ends of the telescopic rod are respectively connected with the middle points of the corresponding first connecting rods.
The telescopic rod can adopt a hydraulic rod or an electric push rod, for example, in the embodiment, a one-way electric push rod CLA-100mm (https:// www.51pla.com/Html/SellInfo/253/25305927.htm) can be selected, and the bottom end of the push rod is fixedly butted to realize outward two-side extension. A limit switch is arranged in the electric push rod, and automatic locking after stretching can be achieved.
The arc slotted holes on the first pair of supporting plates are used for installing the connecting rod fastener 22, the sliding rings at the two ends of the connecting fastener are in sliding fit with the corresponding arc slotted holes and cannot slip, the sliding rings can limit the connecting parts to slip out of the arc slotted holes by nuts at the back of the supporting plates, and one end of the second connecting rod connecting fastener is penetrated on a cross rod of the fastener and can rotate around the cross rod. The electric push rod telescopically adjusts the distance between the threaded wheels, the height of the corresponding support frame changes, the connecting rod fastener slides along the arc-shaped slotted hole to adapt to the width after the change, the second connecting rod is hinged with the connecting rod fastener to adapt to the height after the change, and the mud suction cover is pushed through the second connecting rod to adjust the position of the mud suction cover.
The working mode is as follows:
the robot work and monitoring are realized by the operation of ground personnel. The front and rear support plates are respectively provided with a camera for observing the sludge deposition condition in the pipeline, for the first dredging, the symmetrical support plates are in a combined state, the distance between the thread wheels reaches the minimum distance, and the sludge at the center of the bottom is fully removed. And then, during the second dredging, the distance between the threaded wheels is increased by 2 screw blade diameters, then, the distance between the threads is continuously increased every time of dredging, and in the dredging operation process, the pair of threaded wheels rotate oppositely.
And selecting a proper sludge suction cover according to the size of the pipeline to be desilted. Taking a sewage pipe with the pipe diameter of 600mm as an example, an arched sludge suction cover with the arc radius of 250mm is adopted. The sludge discharge port of the sludge suction cover is connected with the sludge pipeline by a flange. The length of the electric push rod of the dredging vehicle is adjusted to ensure that the opening angle of the symmetrical ring pieces is 0 degree (namely the inner side straight edge is folded). The dredging vehicle is put into the pipeline, and the rotating shaft driving motor on the mud suction cover is adjusted to ensure that the bottom of the mud suction cover is tightly attached to the pipe wall. And starting a screw wheel driving motor to drive a spiral wheel to rotate, advancing and stirring the sludge, and simultaneously starting a mud suction pump on the ground, wherein the sediment at a mud suction port is conveyed backwards on the spiral wheel and is sucked away by a mud suction cover. If there is a large piece of sludge in front, the tip of the first spiral wheel contacts the sludge first, the sediment is broken under the action of thrust and spiral rotation, and the sediment is smoothly sucked out under the stirring and conveying of the second and third spiral wheels. After the first time of dredging, the electric push rod is operated to increase the length of the electric push rod, the opening angle between the supporting plates is increased, and the positions of the second spiral wheel and the third spiral wheel which are in contact with the pipe wall are changed, so that more dredging on the inner wall of the pipe can be performed.
The above description is only the specific embodiments of the present invention, but the technical features of the present invention are not limited thereto, and any person skilled in the relevant art can also make changes or modifications within the scope of the present invention.
Claims (10)
1. The utility model provides a pipeline desilting car with adjustable screw thread wheel which characterized in that includes:
the thread wheels are symmetrically arranged and each thread wheel comprises a first thread wheel positioned at the front section, a second thread wheel positioned at the middle section and a third thread wheel positioned at the tail section, the three sections of thread wheels are coaxially connected, and the thread line of the first thread wheel is a conical thread line;
the supporting frame comprises four pairs of supporting plates, at least two first connecting rods and a telescopic rod, wherein two pairs of supporting plates are arranged between a first section of threaded wheel and a second section of threaded wheel, the other two pairs of supporting plates are arranged between a second threaded wheel and a third threaded wheel, the two supporting plates in each pair of supporting plates are symmetrically arranged, the tops of the two supporting plates are hinged with each other, the bottoms of the two supporting plates penetrate through rotating shafts of the corresponding threaded wheels respectively, the first connecting rods are connected with all the supporting plates on the same side respectively, the telescopic rod is arranged between two cross rods in the same horizontal plane, and the two ends of the telescopic rod are connected with the corresponding connecting rods respectively;
the mud suction cover is positioned behind the third threads along the advancing direction and is connected to a pair of supporting plates of the supporting frame, which are close to one side of the mud suction cover, through a second connecting rod, a mud suction port of the mud suction cover is opposite to the space between the two third threads, and a mud outlet is connected with a mud suction pipe;
and the screw wheel driving motor is arranged on the supporting frame and drives the pair of screw wheels to rotate oppositely in the running process.
2. The pipeline dredging vehicle of claim 1, wherein the taper flare angle of the first threaded wheel ranges from 5 degrees to 10 degrees, the spiral pitch ranges from 1 cm to 10cm, and the maximum diameter of the thread is smaller than or equal to the diameter of the second threaded wheel.
3. The pipeline dredging vehicle of claim 1, wherein each pair of support plates are connected at the top ends by connecting pieces, and the connecting pieces are hinged with the corresponding support plates; the four connecting sheets are connected through a third connecting rod penetrating through the centers of all the connecting sheets, and the third connecting rod is fixedly connected with the corresponding connecting sheet.
4. The pipeline dredging vehicle of claim 3, wherein the four pairs of supporting plates are a first pair of supporting plates, a second pair of supporting plates, a third pair of supporting plates and a fourth pair of supporting plates in sequence from the third threaded wheel to the first threaded wheel; and a pair of pin shafts which are parallel to each other and are respectively positioned at two sides of the third connecting rod are respectively arranged between the connecting sheets of the first pair of supporting plates and the connecting sheets of the second pair of supporting plates and between the connecting sheets of the third pair of supporting plates and the connecting sheets of the fourth pair of supporting plates, two ends of each pin shaft are fixedly connected with the corresponding connecting sheets, and the corresponding supporting plates are hinged with the connecting sheets through the pin shafts.
5. The pipeline dredging vehicle of claim 1, wherein the sludge suction hood is tapered from one end of the sludge suction opening to one end of the sludge outlet, and the bottom of the sludge suction hood is arc-shaped and is attached to the pipe wall; the sludge suction port is connected with a sludge pipe, and the sludge pipe is connected with a sludge pump.
6. The pipeline dredging vehicle of claim 1, wherein a pair of supporting plates near one side of the mud suction cover are provided with arc-shaped slotted holes extending horizontally; the connecting rod fastener is in sliding fit with the two arc-shaped slotted holes and comprises a cross rod and sliding rings arranged at two ends of the cross rod, and the sliding rings are in sliding fit connection with the corresponding arc-shaped slotted holes; one end of the second connecting rod is sleeved on the cross rod of the connecting fastener in a penetrating way and can rotate around the cross rod.
7. The pipeline dredging vehicle of claim 6, wherein the bottom of the mud suction cover is an arc surface attached to the inner wall of the pipeline; the other end of the second connecting rod is fixedly connected with the top surface of the mud suction cover.
8. The pipeline dredging vehicle of claim 6, wherein two fixing blocks are arranged at the top of the mud suction cover, two ends of a rotating shaft are rotatably connected with the corresponding fixing blocks, the axis of the rotating shaft is perpendicular to the central axis of the threaded wheel, one end of the rotating shaft is connected with a rotating shaft driving motor through a coupler, and the second connecting rod is sleeved on the rotating shaft and fixedly connected with the rotating shaft.
9. The pipeline dredging vehicle of claim 1, wherein the first threaded wheel and the second threaded wheel and the third threaded wheel of each threaded wheel are connected through a coupler; the number of the threaded wheel driving motors is 4, the threaded wheel driving motors are respectively installed on the supporting plate and close to the positions corresponding to the couplers, and the threaded wheel driving motors are in gear transmission with the corresponding couplers.
10. The pipeline dredging vehicle of claim 1, wherein the telescopic rod is an electric push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920472848.2U CN210104948U (en) | 2019-04-09 | 2019-04-09 | Pipeline dredging vehicle with adjustable threaded wheels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920472848.2U CN210104948U (en) | 2019-04-09 | 2019-04-09 | Pipeline dredging vehicle with adjustable threaded wheels |
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