CN211694005U - Wheel type tensioning assembly and pipeline robot with same - Google Patents

Abstract

The utility model relates to a wheel type tensioning assembly and a pipeline robot with the same, wherein the tensioning wheel is fixedly arranged on a side plate of a robot body and is arranged above a synchronous pulley; the synchronous belt wheel is arranged on the inner side of the wheel and is movably connected with the wheel; the synchronous belt wheel is connected with the synchronous belt in a sliding way, the synchronous belt wheel is rotationally connected with the wheel shaft, and all the synchronous belt wheels are connected through the synchronous belt; the guide wheel seat is arranged on the inner side of a side plate of the robot vehicle body, the plurality of tensioning wheels are symmetrically arranged on the guide wheel seat, and the tensioning wheels are respectively arranged between any two synchronous belt wheels and are in sliding connection with the synchronous belts. In the process that the synchronous belt rotates along with the synchronous belt wheel, the height of the guide wheel seat can be adjusted through adjusting, the purpose of adjusting the tightness of the synchronous belt is achieved, and the synchronous belt can keep certain initial tension.

Description

Wheel type tensioning assembly and pipeline robot with same

Technical Field

The utility model relates to a pipeline robot technical field especially relates to a wheeled tensioning subassembly and have pipeline robot of this subassembly.

Background

The belt transmission is widely applied to machinery, has elasticity, can alleviate impact and vibration load, runs stably, has no noise, can be used for transmission with larger distance between the centers of two shafts, and can prevent other parts from being damaged because the belt slips on a wheel when overloaded; however, after the driving belt works for a period of time, the driving belt is permanently deformed and loosened, which affects the working capacity of belt transmission, so that a certain initial tension needs to be ensured by taking a tensioning measure.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a remedy prior art not enough, provide a wheeled tensioning assembly and have pipeline robot of this subassembly.

In order to solve the technical problems, the following technical scheme is adopted:

a wheeled tensioning assembly which characterized in that: the tension wheel is fixedly arranged on a side plate of the robot car body and is arranged above the synchronous belt wheel; synchronous pulley sets up in the curb plate and keeps away from one side of wheel, and with wheel swing joint.

Further, synchronous pulley and take-up pulley all are equipped with two sets ofly.

Furthermore, a synchronous belt is arranged on the synchronous belt wheel, the synchronous belt wheel is rotationally connected with the wheel shaft, and the synchronous belt wheels are connected through the synchronous belt.

Furthermore, the tensioning wheels are symmetrically arranged on the guide wheel seat, the guide wheel seat is arranged on the inner side of the middle of a side plate of the robot vehicle body, and each tensioning wheel is arranged between any two synchronous belt wheels and is in sliding connection with the synchronous belt.

Further, the guide wheel seat can move along the length direction perpendicular to the side plates.

A pipeline robot comprises a robot vehicle body, wherein the robot vehicle body comprises the wheel type tensioning assembly.

By adopting the technical scheme, the method has the following beneficial effects:

the utility model relates to a pipeline robot's wheeled straining structure, synchronous belt along with synchronous pulley pivoted in-process, the height of guide pulley seat is adjusted to the accessible, reaches the purpose of adjusting the elasticity of synchronous belt, makes the synchronous belt can keep certain initial pulling force, avoids the synchronous belt after work a period, can produce permanent deformation and relax, influences the operational capability of synchronous belt.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and it is also obvious for a person skilled in the art to obtain other drawings based on these drawings.

Fig. 1 is a schematic external structural view of a pipeline robot according to the present invention;

FIG. 2 is a schematic view of the internal structure of the robot car body of the present invention;

fig. 3 is a schematic side view of the robot body of the present invention;

fig. 4 is a schematic view of the cross-sectional structure of fig. 3 in the direction of a;

fig. 5 is a schematic structural diagram of the present invention at I in fig. 4;

fig. 6 is a schematic structural view of the robot vehicle body of fig. 2 of the present invention;

fig. 7 is a schematic structural view of the middle wheel type driving structure of the present invention;

fig. 8 is a schematic side view of the middle wheel type driving structure of the present invention;

fig. 9 is a schematic structural view of the direction B in fig. 8 according to the present invention;

fig. 10 is a schematic structural view of the middle wheel assembly of the present invention;

fig. 11 is a schematic structural view of the sealing assembly of the present invention;

FIG. 12 is a schematic structural view of the middle paddy field wheel assembly of the present invention mounted on the pipeline robot;

FIG. 13 is a front view of the wheel assembly of the reclaimed water field of the present invention mounted on the pipeline robot;

FIG. 14 is a schematic structural view of a paddy field wheel of the present invention;

fig. 15 is a schematic structural view of the detection structure of the lifting platform of the present invention;

fig. 16 is a schematic view of the structure of the lifting platform of the present invention;

fig. 17 is a schematic top view of the detection structure of the lifting platform of the present invention;

fig. 18 is a control diagram of a pipeline robot according to the present invention;

fig. 19 is a schematic structural diagram of the middle power module of the present invention.

In the figure: 1-a robot car body; 2-a wheel drive configuration; 3-a power supply module; 4-lifting cradle head detection structure; 5-a sensing detection module;

21-a wheel drive assembly; 22-a wheeled belt assembly; 23-a wheel tensioning assembly; 24-a wheel assembly; 25-a seal assembly;

211-a motor; 212-a speed reducer; 213-a coupling; 214-a motor base;

221-driving shaft; 222-a driven shaft; 223-a guide shaft; 224-driving synchronous pulley; 225-driven timing pulley; 226-leading timing pulley; 227-synchronous belt; 228-bearing holders.

231-a guide wheel seat; 232-a tension wheel; 233-mounting groove; 234-set screw;

241-driving wheels; 242-driven wheels; 243-guide wheels;

251-front big wheel; 252-rear large wheel; 253-front big wheel connecting shaft; 254-rear big wheel connecting shaft; 255-large wheel hub; 256-tyre;

261-front paddy field wheel; 262-rear paddy field wheel; 263-front paddy field wheel connecting shaft; 264-a rear paddy field wheel connecting shaft; 265-paddy wheel hub; 266-a geared portion;

271-a first seal ring; 272-a second seal ring; 273-sealing ring fasteners; 274-axle seals; 275-bearing end caps; 276-circular mounting groove; 277-annular projection;

41-lifting support; 42-a lifting assembly; 43-a lift drive assembly; 44-a pan-tilt base;

411-lifting upper support; 412-lifting the lower support; 413-card slot;

421-scissor rod; 422-a guide push rod;

431-a push rod motor; 432-motor cover; 433-a motor fixing seat;

51-detection of sonar; 52-navigation sonar; 53-an IMU inertial navigation unit;

61-front counterweight cabin; 62-rear counterweight cabin; 63-a first fixing hole; 64-second fixing hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail through the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1 to 19, a pipeline robot comprises a robot body 1, wherein the robot body 1 is provided with a wheel type driving structure 2, a motion control and communication module, a power module 3, a lifting platform detection structure 4 and a sensing detection module 5, the wheel type driving structure 2, the motion control and communication module and the power module 3 are arranged in the robot body 1, the lifting tripod head detection structure 4 and the sensing detection module 5 are arranged at the upper part of the robot car body 1, the wheel type driving structure 2 is connected with the motion control and communication module, the motion control and communication module is connected with the sensing detection module 5, the sensing detection module 5 is connected with the lifting tripod head detection structure 4, and the wheel type driving structure 2, the motion control and communication module, the lifting tripod head detection structure 4 and the sensing detection module 5 are all connected with the power module 3. Robot automobile body 1 is through to wheeled drive structure 2, motion control and communication module, power module 3, lift cloud platform detects structure 4 and sensing detection module 5 and carries out reasonable overall arrangement, wheeled drive structure 2 is provided with 2 groups, 2 wheels at pipeline robot both ends are controlled respectively to group's wheeled drive structure 2, 2 groups of wheeled drive structure 2 are the symmetry setting, be formed with the vacant space at middle part, be used for placing power module 3, make the overall arrangement of 1 inside of whole robot automobile body more have rationalization. In addition, the lifting cradle head detection structure 4 and the sensing detection module 5 can be used for more conveniently carrying out detection work.

In this embodiment, the sensing and detecting module 5 includes an underwater vision device, a detecting sonar 51, a navigation sonar 52, and a positioning receiver, the underwater vision device, the detecting sonar 51, the navigation sonar 52, and the positioning receiver are all installed on the base of the pan/tilt head,

the underwater vision device: the underwater visual equipment position and pose adjusting device is used for adjusting the position and pose of the underwater visual equipment through the lifting cradle head detection structure 4 and collecting and transmitting underwater patrol inspection information;

the detection sonar 51: the system is used for adjusting the position and the pose of the detection sonar 51 through the lifting cradle head detection structure 4 and is responsible for detecting the pipeline section information;

the navigation sonar 52: the system is used for adjusting the position and the pose of the navigation sonar 52 through the lifting cradle head detection structure 4, and performing route navigation;

the acoustic positioning receiver: the system is used for adjusting the position and the pose of the acoustic positioning receiver through the lifting cradle head detection structure 4, and carrying out sonar positioning.

Specifically, an IMU inertial navigation unit 53 is arranged in the robot body 1, the IMU inertial navigation unit 53 is combined with underwater vision equipment, a detection sonar 51, a navigation sonar 52 and a sound positioning receiver, the IMU inertial navigation unit 53 has the advantages of high data measurement frequency, comprehensive data and the like, can provide information such as the posture, position, speed, acceleration and the like of the pipeline robot in real time, does not need external equipment, is an automatic positioning system, and can be well applied to pipeline detection in a closed environment; the motion state of the pipeline robot can be rapidly obtained through the acceleration values and the angular velocity values of the pipeline robot detected by the IMU inertial navigation unit 53.

In this embodiment, the power module 3 includes a dc power source, a power source assembly and a measurement and control source assembly, where the power source assembly includes a motor, a driver and a light source, the dc power source is connected to the driver, the driver is connected to the motor, and the dc power source is connected to the light source; the measurement and control source component comprises a power conversion board and a power conversion chip, the power conversion board comprises a first power conversion board, a second power conversion board and a third power conversion board, the first power conversion board is connected with the main control board and the sonar, the second power conversion board is connected with the network switch, the vision and the camera, and the third power conversion board is connected with the IMU inertial navigation unit and the direct current carrier board through the power conversion chip. The power supply module of the power module 3 is divided into a power source and a measurement and control source, and the circuits of the power source and the measurement and control source are respectively arranged.

In the embodiment, the dc power supply adopts a dc power supply of 48V, and for the power source component, the dc power supply of 48V directly supplies power to the motor, the driver and the light source, wherein the motor here includes two motors of the wheel type driving structure 2 and the push rod motor of the lifting and lowering platform detection structure 4, and the driver has two motors due to the two motors of the wheel type driving structure 2.

For the measurement and control source component, a corresponding power conversion board is needed to be used to convert the high-voltage dc 48V power supply into a low-voltage dc power supply, for example, the dc 48V power supply is converted into a dc 24V dc power supply through a first power conversion board to supply power to the main control board and a sonar, where the sonar includes a sonar, a navigation sonar 52 and a sound positioning receiver. For example, a second power conversion board converts a dc power supply of 48V dc into a dc power supply of 12V dc, which supplies power to the network switch, the vision and the camera. For example, a dc 48V dc power supply is converted into a dc 5V dc power supply through the third power conversion board and the power conversion chip, and the IMU inertial navigation unit 53 and the dc carrier plate are supplied with power.

Specifically, be equipped with motion control and communication module on the main control board, network switch and first power line carrier communication module, motion control and communication module are connected with the network switch, the network switch is connected with first power line carrier communication module, motion control and communication module, network switch and first power line carrier communication module all are connected power module 3. The remote communication between the pipeline robot at the wet end and the upper computer at the dry end is realized by utilizing a power carrier communication technology, and based on the communication mode, the development of a robot controller is completed by adopting an embedded system, so that the motion control of the amphibious robot under different water conditions and sludge environments is realized. Meanwhile, based on the communication mode, the vision and sonar detection results are uploaded to an upper computer.

Furthermore, what has been introduced above is the part of pipeline robot, and this part belongs to wet end, and wet end means the lower part of direct contact pipeline robot, and wherein wet end is through having communication cable connection dry end of receive and release function concurrently, dry end includes jack, accumulator, operating handle and host computer.

The retraction mechanism comprises a retraction guide wheel, a retraction driving wheel, a retraction driven wheel and a force measurement and length measurement device, the effective retraction of the communication cable is guaranteed through the actions of the retraction guide wheel, the retraction driving wheel and the retraction driven wheel, and the distance between the pipeline robot and the upper dry end and the driving force of the currently retracted communication cable can be effectively monitored through the force measurement and length measurement device. The wire storage device is used for storing and collecting the communication cable.

The operating handle is connected to the host computer, the host computer is a computer equipment, is equipped with DC power supply on the host computer, is equipped with wireless communication mouth or wired communication mouth on the host computer, wireless communication mouth or wired communication mouth pass through serial ports communication connection voiced location generator, the vocal location receiver of wet end is connected to the voiced location generator. The upper computer communication port is connected with a wireless communication port or a wired communication port near the wire storage device, the wireless communication port or the wired communication port is connected with a second power carrier communication module, and the second power carrier communication module is connected with the communication cable.

In this embodiment, the wheel type driving structure 2 includes two wheel type driving assemblies 21, two wheel type transmission belt assemblies 22, two wheel type tensioning assemblies 23, two wheel type assemblies 24, and a sealing assembly 25, the wheel type driving structure 2 is provided with two sets, the two sets of wheel type driving structures 2 are symmetrically arranged with the robot body 1, the wheel type driving assembly 21 is connected with the wheel type transmission belt assemblies 22, the wheel type transmission belt assemblies 24 are connected to the outside of the wheel type transmission belt assemblies 22, the wheel type tensioning assemblies 23 are provided on the wheel type transmission belt assemblies 22, and the sealing assembly 25 is provided between the wheel type assemblies 24 and the robot body 1.

In this embodiment, wheel drive assembly 21 includes motor 211, speed reducer 212, shaft coupling 213 and motor cabinet 214, motor cabinet 214 fixed mounting in robot automobile body 1, install motor 211 on the motor cabinet 214, the output shaft of motor 211 is connected with speed reducer 212, the output shaft of speed reducer 212 is connected with shaft coupling 213, shaft coupling 213 connects wheel drive belt assembly 22. The wheel type driving assembly 21 drives the speed reducer 212 to rotate at a high speed through the motor 211, the motor 211 can be a stepping motor 211 or a servo motor 211, the speed reducer 212 is a gear speed reducer 212 or a worm gear speed reducer 212, the output torque of an output shaft of the speed reducer 212 is increased under the action of the speed reducer 212, and then the wheel type transmission belt assembly 22 is driven to move through the coupling action of the coupling 213.

In this embodiment, the wheel transmission belt assembly 22 includes a wheel shaft, a driving timing pulley 224, a driven timing pulley 225, a guiding timing pulley 226 and a timing belt 227, the wheel shaft includes a driving shaft 221, a driven shaft 222 and a guiding shaft 223, the driving shaft 221 is located at the front of a side plate of the robot body 1, the driven shaft 222 is located at the rear of the side plate of the robot body 1, the guiding shaft 223 is located at the middle of the side plate of the robot body 1, the inner end of the driving shaft 221 is connected to the coupling 213, the outer end of the driving shaft 221 is connected to the wheel assembly 24, the middle of the driving shaft 221 is mounted with the driving timing pulley 224, the inner end of the driven shaft 222 is connected to the bearing fixing seat 228, the outer end of the driven shaft 222 is connected to the wheel assembly 24, the middle of the driven shaft 222 is mounted with the driven timing pulley 225, the outer end of the guide shaft 223 is connected with a wheel assembly 24, the middle part of the driven shaft 222 is provided with a guide synchronous pulley 226, the driving synchronous pulley 224, the driven synchronous pulley 225 and the guide synchronous pulley 226 are provided with a synchronous belt 227, and the synchronous belt 227 is connected with the wheel type tensioning assembly 23. The wheel type transmission belt assembly 22 is a transmission mode of a synchronous belt 227, the wheel type driving assembly 21 drives a driving synchronous belt wheel 224 to move, so that a driving wheel is driven to move, under the action of a driven synchronous belt wheel 225, the synchronous belt 227 and the driven synchronous belt wheel 225, the driven wheel is driven to move, and a guide wheel is driven to move through the action of a guide synchronous belt wheel 226 and a guide shaft 223, so that three wheels synchronously rotate.

In this embodiment, the wheel type tensioning assembly 23 includes a guide wheel seat 231 and a plurality of tensioning wheels 232, the guide wheel seat 231 is disposed inside a middle portion of a side plate of the robot body 1, the plurality of tensioning wheels 232 are symmetrically disposed on the guide wheel seat 231, each tensioning wheel 232 is disposed between any two synchronous belts 227 and slidably connected to the synchronous belts 227, two sides of the guide wheel seat 231 are provided with mounting grooves 233 vertically disposed, and the mounting grooves 233 are provided with positioning screws 234 or positioning pins therein. In-process at hold-in range 227 along with hold-in range 227 wheel rotation, the accessible is adjusted the height of guide pulley seat 231, reaches the purpose of adjusting the elasticity of hold-in range 227, makes hold-in range 227 can keep certain initial tension, avoids hold-in range 227 after work a period, can produce permanent deformation and relax, influences hold-in range 227's working ability.

In this embodiment, the wheel assembly 24 includes a driving wheel 241, a driven wheel 242, a guiding wheel 243 and a wheel replacing assembly, wherein the driving wheel 241 is fixedly installed at the outer end of the driving shaft 221, the driven wheel 242 is fixedly installed at the outer end of the driven shaft 222, the guiding wheel 243 is fixedly installed at the outer end of the guiding shaft 223, and the wheel replacing assembly is arranged at the outer side of the driving wheel 241 and the driven wheel 242.

In this embodiment, the wheel replacing assembly is a large wheel assembly, the large wheel assembly includes a front large wheel 251, a rear large wheel 252, a front large wheel connecting shaft 253 and a rear large wheel connecting shaft 254, the front large wheel 251 is mounted on the front large wheel connecting shaft 253, the front large wheel connecting shaft 253 is mounted on the driving shaft 221 through a wheel flange, the rear large wheel 252 is mounted on the rear large wheel connecting shaft 254, the rear large wheel connecting shaft 254 is mounted on the driven shaft 222 through a wheel flange, the front large wheel 251 and the rear large wheel 252 both include a large wheel hub 255 and a tire 256, the middle of the large wheel hub 255 is matched with the front large wheel connecting shaft 253 and the rear large wheel connecting shaft 254, and the tire 256 is disposed outside the large wheel hub 255.

In this embodiment, the wheel exchange assembly is a paddy wheel assembly including front paddy wheels 261, rear paddy wheels 262, a front paddy wheel connecting shaft 263 and a rear paddy wheel connecting shaft 264, the front paddy field wheel 261 is mounted on the front paddy field wheel connecting shaft 263, the front paddy field wheel connecting shaft 263 is mounted on the driving shaft 221 through a wheel flange plate, the rear paddy field wheel 262 is mounted on the rear paddy field wheel connecting shaft 264, the rear paddy field wheel connecting shaft 264 is mounted on the driven shaft 222 through a wheel flange plate, the front side paddy wheel 261 and the rear side paddy wheel 262 each include a paddy wheel hub 265 and a cogwheel portion 266, the middle part of the paddy field wheel hub 265 is matched with the front side paddy field wheel connecting shaft 263 and the rear side paddy field wheel connecting shaft 264, and the outer side of the paddy field wheel hub 265 is provided with the embedded gear part 266.

The large wheel assembly and the paddy field wheel assembly are arranged to form two driving modes, the large wheel assembly is spirally propelled, the paddy field wheel assembly is driven in a crawling mode, the research and development of the amphibious robot in the pipe facing the operation and maintenance of the rain and sewage drainage pipeline are developed, the capabilities of moving, positioning, posture stabilizing and the like under different water conditions and sludge conditions in the pipe are given, and the design capability of the mechanical body of the amphibious robot is realized on the basis of completing the kinematics and dynamics modeling simulation under different water conditions and sludge conditions in the pipe; on the basis of researching and developing a robot measurement and control module, the running state of the robot in pipes under different water conditions is monitored by using machine vision and sonar, and remote motion control of the robot is completed.

In this embodiment, the seal assembly 25 includes a first seal ring 271, a second seal ring 272, a seal ring fastener 273, an axle seal 274, and a bearing cover 275, the inner shaft holes of the axle seal 274 and the bearing cover 275 are matched with the wheel shaft, the outer end faces of the axle seal 274 and the bearing cover 275 are matched with the robot body 1, the axle seal 274 is located outside the robot body 1, the bearing cover 275 is located inside the robot body 1, the first seal ring 271 is provided outside the axle seal 274, the first seal ring 271 is matched with the robot body 1, the second seal ring 272 is provided inside the axle seal 274, and the seal ring fastener 273 is provided outside the second seal ring 272.

Specifically, a circular mounting groove 276 is formed in the middle of the outer side of the axle sealing element 274, a second sealing ring 272 is arranged in the first circular mounting groove 276, and the second sealing ring 272 seals the axle through a sealing ring fastening element 273 and a screw.

Specifically, the second seal 272 is a dynamic seal, is sealed with the axle by the axle seal 274, belongs to dynamic seal, and prevents water from entering the robot body 1 from a gap between the axle and the axle seal 274.

Specifically, the inner side outer edge of the axle sealing element 274 is provided with an annular protrusion 277, the outer side wall of the robot body 1 is provided with an annular mounting groove matched with the annular protrusion 277, a first sealing ring 271 is arranged in the annular mounting groove, the robot body 1 and the axle sealing element 274 are tightly fixed through screws, and the robot body 1 is sealed through the first sealing ring 271 and the axle sealing element 274.

Specifically, the first seal 271 is a static seal and is sealed with the robot body 1 by the axle seal 274, so that water is prevented from entering the robot body 1 through a gap between the robot body 1 and the axle seal 274.

In the present embodiment, the lifting/lowering platform detecting structure 4 includes a lifting support 41, a lifting assembly 42, a lifting/lowering driving assembly 43 and a platform base 44; the lifting support 41 comprises a lifting upper support 411 and a lifting lower support 412, the lifting assembly 42 is arranged between the lifting upper support 411 and the lifting lower support 412, the lifting support 41 is provided with a clamping groove 413 along the length direction of the lifting support, the lifting assembly 42 is connected with the clamping groove 413 in a sliding manner, the lifting upper support 411 is fixedly connected with the holder base 44, and the lower part of the lifting lower support 412 is connected with the robot body 1; the lifting driving component 43 is fixedly arranged at the bottom end of the holder base 44 and connected with the lifting component 42, and the holder base 44 is provided with the sensing detection module 5. The sensing detection module 5 is gathered the signal in the pipeline, and the motion control of pipeline robot handles the analysis back with the signal of communication module to gathering, and the work of control push rod motor 211 is through the concertina movement of the telescopic link in the push rod motor 211 to adjustment lifting unit 42's lift can make the sensing detection module 5 reach the best height that detects.

In this embodiment, the lifting assembly 42 is a scissor-type lifting structure, and includes scissor rods 421 arranged in a cross-hinged manner and a push guide rod 422 disposed between the scissor rods 421; one end of the scissor rod 421 is hinged to the lifting support 41, the other end of the scissor rod 421 is provided with a guide push rod 422, the guide push rod 422 is slidably connected with the clamping groove 413, and the guide push rod 422 close to the lifting upper support 411 is fixedly connected with the lifting driving assembly 43.

In this embodiment, the scissor rods 421 include two sets, one end of the first set of scissor rods 421 is hinged to the upper lifting support 411, and the other end is provided with a push guiding rod 422; one end of the second group of scissors rod 421 is hinged with the lifting lower support 412, and the other end is provided with a guide push rod 422; guide wheels are arranged at two ends of the guide push rod 422 and are in sliding connection with the clamping grooves 413.

In this embodiment, the lifting driving assembly 43 includes a push rod motor 431, a motor cover 432 and a motor fixing base 433, the motor fixing base 433 is fixedly connected to the bottom end of the holder base 44, the push rod motor 431 is disposed in the motor fixing base 433, a telescopic rod of the push rod motor 431 is fixedly connected to the guide rod 422 close to the lifting upper support 411, and the motor cover 432 is fixedly disposed at an end of the push rod motor 431.

In this embodiment, the front side of robot automobile body 1 is equipped with preceding counter weight cabin 61 of detachable, be equipped with preceding balancing weight in the preceding counter weight cabin 61, the rear side of robot automobile body 1 is equipped with detachable back balancing weight cabin 62, be equipped with the back balancing weight in the back balancing weight cabin 62. The front counterweight cabin 61 and the rear counterweight cabin 62 are detachable components, and corresponding counterweight blocks are matched in the front counterweight cabin 61 and the rear front counterweight cabin 61 according to the water flow condition in the pipeline.

Specifically, the front counterweight cabin 61 is designed to be of a diversion type, so that the movement under the water environment is convenient. Both sides of the front counterweight cabin 61 are provided with a row of first fixing holes 63, fixing screws are arranged in the first fixing holes 63, and the front counterweight cabin 61 is installed on the front side of the robot vehicle body 1 through the fixing screws.

Specifically, the rear weight compartment 62 is designed to be rectangular to match the overall shape of the robot car body 1. Both sides of the rear counterweight cabin 62 are provided with a row of second fixing holes 64, fixing screws are arranged in the second fixing holes 64, and the rear counterweight cabin 62 is installed on the front side of the robot car body 1 through the fixing screws.

Specifically, the top of the front weight compartment 61 and the rear weight compartment 62 is provided with an upper ceiling plate that fixedly seals the upper portion of the entire robot car body 1.

The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present invention to solve the same technical problems and achieve the same technical effects are all covered by the protection scope of the present invention.

Claims (6)

1. A wheeled tensioning assembly which characterized in that: the tension wheel is fixedly arranged on a side plate of the robot car body and is arranged above the synchronous belt wheel; synchronous pulley sets up in the curb plate and keeps away from one side of wheel, and with wheel swing joint.

2. A wheeled tensioning assembly as claimed in claim 1, wherein: and the synchronous belt wheels and the tensioning wheels are provided with two groups.

3. A wheel tensioner assembly as claimed in claim 2, wherein: the synchronous belt pulley is provided with a synchronous belt, the synchronous belt pulley is rotationally connected with the wheel shaft, and the synchronous belt pulleys are connected through the synchronous belt.

4. A wheel tensioner assembly as claimed in claim 2, wherein: the tensioning wheels are symmetrically arranged on the guide wheel seat, the guide wheel seat is arranged on the inner side of the middle of a side plate of the robot vehicle body, and each tensioning wheel is arranged between any two synchronous belt wheels and is in sliding connection with the synchronous belt.

5. A wheel tensioner assembly as claimed in claim 4, wherein: the guide wheel seat can move along the length direction vertical to the side plates.

6. The utility model provides a pipeline robot, includes the robot automobile body, its characterized in that: the robotic vehicle body comprising the wheeled tensioning assembly of claims 1-5.

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