471 results about "Auto regulation" patented technology

The invention relates to the technical field of numerical control machine tool control, and provides an automatic precision adjustment control method and system for a numerical control machine tool, and the method comprises the steps: continuously judging the influence degree of a non-uniform mechanical wear error and a thermal deformation error on the current machining precision according to a non-uniform mechanical wear error feature and a thermal deformation error feature; according to the non-uniform mechanical wear error characteristics, calculating the mechanical wear compensation amount related to the motion axis position and the motion direction; according to the thermal deformation error characteristics, calculating a thermal deformation compensation amount related to the machining time length; according to the influence degree, the combination mode of the mechanical wear compensation amount and the thermal deformation compensation amount is adjusted, the mechanical wear compensation amount and the thermal deformation compensation amount are fused based on the combination mode, and a motion instruction compensation value is generated; and continuously superposing the motion instruction compensation value into an original motion instruction of the numerical control system so as to realize automatic precision adjustment and control. The method has the effect of improving the machining precision, stability and production efficiency of the numerical control machine tool.

The utility model relates to the technical field of brightness adjustment, and discloses a control circuit capable of automatically adjusting brightness gears, the control circuit is high in reliability and stable, the control circuit comprises an MCU control circuit (130) used for outputting PWM signals and enable signals, an LED drive circuit (141) and a current detection circuit (142), the signal feedback end of the LED drive circuit (141) is connected with the output end of the current detection circuit (142), and the output end of the current detection circuit (142) is connected with the output end of the MCU control circuit (130). And the control module is used for receiving the level signal and controlling the working current of the LED module according to the level signal so as to adjust the brightness of the LED module.

The utility model discloses a sliding type base for electromechanical installation. The sliding type base comprises a sliding type base body, a first guide rail, an installation block, a supporting mechanism and an adjusting mechanism. The adjusting mechanism is arranged at the end, away from the sliding type base body, of the mounting block and comprises a driving part and an adjusting part, the adjusting part is hinged to the supporting mechanism and used for adjusting the height of the supporting mechanism, and the driving part is in threaded sleeving connection with the adjusting part and used for driving the adjusting part to move; the adjusting mechanism is arranged at the top of the base and drives the first driving motor, the first driving motor drives the first threaded rod to rotate, the first threaded rod drives the moving block to move, the moving block and the mounting blocks move, and the first rotating rod and the second rotating rod rotate through movement of the moving block; the height of the supporting frame can be automatically adjusted according to the installation requirement of the electromechanical equipment, and the flexibility is improved.

The invention relates to a method for automatically adapting (1) the safety distance between a motor vehicle and a vehicle being followed. The adaptation method (1) is implemented by a control unit and comprises a verification step (11), based on data from at least one sensor of the motor vehicle, to detect whether at least one passenger of said motor vehicle is not complying with at least one carrying condition. If it is detected that at least one carrying condition is not being met by at least some of the passengers, the method comprises a safety step (12) for the motor vehicle. The safety step (12) includes an adjustment step (13) for the safety distance separating the vehicle being followed and the motor vehicle so as to allow less forceful braking of the motor vehicle compared to a situation in which the carrying conditions are met for all passengers. Figure to be published with the abstract: Fig. 3

The application relates to the technical field of general control or regulation systems, and discloses an automatic regulation method for a plug taking pump operation, which comprises the following steps: synchronously acquiring a voltage vector and a current vector of a controlled execution unit; calculating a transient active power by calculating a scalar product of the voltage vector and the current vector; removing a steady power consumption component in the transient active power to extract an energy recoil pulse; generating a micro-elastic recoil energy product representing load yield information by integration; monitoring a differential gradient of the micro-elastic recoil energy product; and determining an output negative gradient duty cycle signal at a collapse moment to regulate a power slope. The application uses a vector power analysis mechanism to capture a load fragmentation signal, eliminates hydraulic hysteresis of a control loop, ensures that a negative pressure release rate of a pipeline matches a load displacement increment, and improves regulation accuracy under a load impedance step working condition.

The utility model discloses an automatic adjustment type power overhead cable windproof fixer, which relates to the technical field of power transmission and comprises a mechanism column, a fixing mechanism is movably mounted on the lower side of the mechanism column, a fastening mechanism is movably sleeved on the inner side of the mechanism column, and a supporting mechanism is rotatably connected to the front side of the mechanism column close to the upper side of the mechanism column. The front side and the rear side of the mechanism column are fixedly connected with tensioning mechanisms, and the supporting mechanism comprises a first gear and a fixed pulley. According to the automatic adjusting type electric power overhead cable windproof fixing device, the first gear is rotated to enable the first traction rope to erect a cable, and the motor drives the tensioning wheel to move left and right, so that the tensioning degree on the first traction rope is controlled; by means of an automatic adjusting mode, the first pulling rope can fix the cable more stably, response is fast, operation is convenient and fast, and the situation that the cable fixing effect is affected by too large or too small tensioning degree is avoided.

The utility model relates to the field of production line conveying, and discloses an automatic assembly production line conveying device which comprises a supporting frame, a conveying belt support is fixedly installed in the supporting frame, the left end of the conveying belt support is rotationally connected with a driving wheel, and the right end of the conveying belt support is rotationally connected with a driven wheel. The outer surface of the driving wheel and the outer surface of the driven wheel are each sleeved with a conveying belt, the driving motor drives the small gear to rotate, due to meshing connection between the small gear and the rack, the rack enables the two special-shaped connecting rods to move in the direction away from or close to each other, and due to the movement, the distance between the two limiting plates can be conveniently adjusted through the supporting adjusting rod; according to the device, the limiting plates are arranged to adapt to parts of different sizes and prevent the parts from deviating greatly, the device can automatically adjust the distance between the limiting plates to achieve effective limiting of the parts, meanwhile, the ceramic layers are installed on one sides of the limiting plates, friction force between the limiting plates and the parts can be reduced, and normal conveying of the parts is guaranteed.

The utility model discloses an automatic flow adjusting and pressure stabilizing device for a submersible pump, and relates to the technical field of submersible pumps. The automatic flow adjusting and pressure stabilizing device for the submersible pump comprises the ground, the submersible pump and a control box. The supporting assembly comprises a fixing cylinder, two connecting rings are fixedly connected to the surface of the fixing cylinder, and fixing rods are fixedly connected to the opposite faces of the two connecting rings. The surface of the fixed rod is fixedly connected with a first fixed cylinder, the surface of the fixed rod is slidably connected with a movable cylinder, the surface of the movable cylinder is fixedly connected with a limiting ring, the surface of the fixed rod is sleeved with a reset spring, the surface of the movable cylinder is hinged to a connecting rod, the surface of the connecting rod is hinged to a connecting frame, and the surface of the connecting frame is rotatably connected with two rolling wheels. And through the arrangement of the connecting rod, the connecting frame and the rolling wheels, the outer side of the submersible pump can be conveniently supported and protected, the friction resistance is reduced, the risk of equipment damage caused by collision is reduced, and the operation safety is improved.

This invention relates to the field of prime mover calibration, specifically to a control method for a turbine-type hydraulic dynamometer, comprising the following steps: obtaining the optimal opening degree of the inlet valve for all speed segments through segmented speed trial adjustment; obtaining the specific operating condition speed value, speed adjustment range, and automatic adjustment closing value of the drain valve for each operating condition; performing weighted judgment based on the speed monitoring sequence; calculating the linear fitting degree as a correction coefficient, and obtaining the speed deviation and valve position correction amount. This invention matches a dedicated speed adjustment range and initial adjustment value of the drain valve for each preset operating condition, eliminating the need for blind trial and error in the gradient adjustment of the drain valve, enabling rapid adaptation to the operating condition switching requirements of the prime mover, shortening the convergence time of speed control, and improving the dynamometer's response speed to operating condition switching.

The utility model discloses a rubber covered roller pressure self-adaptive mechanism which comprises a wall plate, a rubber covered roller movably installed on the wall plate and a bearing installed at the end of the rubber covered roller. The pressure adjusting piece is used for driving the rubber roller to automatically adjust the height position according to the thickness of the processed object and comprises a pressure adjusting plate and at least one connecting pressure adjusting plate and the wall plate; the pressure adjusting plate is movably connected to the wall plate and is in bearing contact with the end part of the rubber roller; and the tension spring is used for applying downward acting force to the pressure adjusting plate to drive the rubber roller to move downwards. Through the arrangement of the device, the height position of the rubber roller can be automatically adjusted according to the thickness of a processed object in the using process of the rubber roller, so that the rubber roller can be suitable for the processed objects with different thicknesses, meanwhile, the rubber roller can be automatically adjusted, manual control is not needed, the application range is wide, and the automation degree is high.

The application provides a control method and device, electronic equipment and storage medium, and relates to the technical field of human-computer interaction. The method comprises the following steps: firstly, in response to a temperature demand instruction input by a user, a high-voltage heater and a compressor are started in sequence; then, an in-cabin temperature, a warm air core inlet temperature and an ambient temperature collected by a sensor are acquired, and a PID control power of the high-voltage heater and a PID control rotating speed of the compressor are determined according to an air conditioner target temperature, the in-cabin temperature and the warm air core inlet temperature; finally, the operating power of the high-voltage heater is increased from an initial operating power to the PID control power, and the operating rotating speed of the compressor is increased from an initial operating rotating speed to the PID control rotating speed. In the application, the operating power control of the high-voltage heater and the rotating speed control of the compressor are automatically adjusted in real time by starting the high-voltage heater and the compressor in sequence, so that the vehicle-mounted heat pump air conditioning system can consider both the temperature control timeliness and the energy saving during operation.

The invention discloses a hydraulic pressure maintaining system for an electric pile of a high-pressure water electrolyser and a control method, and belongs to the technical field of new energy and high-efficiency energy conservation. The system comprises a water electrolyser galvanic pile, a hydraulic system, a sensing unit and a control unit. The hydraulic system is used for applying adjustable clamping force to the electric pile of the water electrolyser; the sensing unit acquires a contact resistance signal and a back pressure signal of the electric pile in real time; the control unit receives the signals, adjusts the output pressure of the hydraulic system, and maintains the effective contact pressure of the galvanic pile. The hydraulic system comprises a structural assembly and a hydraulic driving assembly, wherein the hydraulic driving assembly comprises a hydraulic cylinder, a hydraulic pump, an oil tank, an electromagnetic valve and the like. The control method comprises the three steps of collecting parameters in real time, calculating a target pressure value and controlling the hydraulic system to apply corresponding clamping force, and pressure adjustment is divided into a pressure increasing stage, a pressure maintaining stage and a pressure reducing stage. The clamping force can be automatically adjusted according to the running state of the galvanic pile, and the problem that the sealing performance and contact resistance of the galvanic pile change in the high-pressure water electrolysis process is effectively solved.

The invention relates to the technical field of electric energy meter wiring auxiliary equipment, and discloses a novel electric energy meter combined junction box, which comprises a junction box main body, guide raised lines arranged on the inner wall of the junction box main body and metal connecting pieces arranged between compression screws in a sliding manner, the metal connecting pieces are divided into a transverse metal connecting piece and a longitudinal metal connecting piece, and the transverse metal connecting piece and the longitudinal metal connecting piece are arranged at intervals in a staggered manner; by arranging the control mechanism and the driving mechanism, the manual and automatic dual control mode of the metal connecting piece is achieved, an operator can manually adjust the position of the metal connecting piece by rotating a button, and the metal connecting piece can be automatically controlled by rotating the button; the metal connecting piece can be automatically adjusted through a micro motor and a micro electric cylinder, operation is convenient and fast, applicability is high, and meanwhile through cooperation of multiple transmission modes such as gear transmission and bevel gear transmission, the precision and stability of metal connecting piece adjustment are improved.

This application belongs to the field of stove control technology and discloses a cooking control method and system for a gas stove. When controlling the cooking of a gas stove with intelligent automatic cooking, the system determines a first power level based on the cooking steps in the recipe; controls the opening of the flow regulating device to correspond to the first power level and acquires the first gas pressure collected by the pressure detection device; determines a second power level based on the first gas pressure and the first power level, and controls the opening of the flow regulating device to correspond to the second power level. By installing a pressure detection device on the output pipe of the flow regulating device, the gas pressure on the output pipe is collected in real time, and the power level is automatically adjusted according to the gas pressure during the cooking process to ensure that the output power of the gas stove is not affected, thereby guaranteeing the cooking effect.

The utility model discloses an automatic adjusting device for the fork tooth space of an AGV forklift and an intelligent AGV forklift, the automatic adjusting device for the fork tooth space comprises a fork tooth space adjusting unit, a fork tooth space detecting unit and a control unit which are arranged on the AGV forklift, the signal output end of the fork tooth space detecting unit is connected with the first signal input end of the control unit, and the signal output end of the fork tooth space detecting unit is connected with the second signal input end of the control unit. The signal output end of the control unit is connected with the signal input end of the prong space adjusting unit, the control unit controls the prong space adjusting unit to adjust the space between prongs of the AGV forklift, in the adjusting process, the prong space detecting unit detects a signal of the space between the prongs of the AGV forklift and feeds back the signal to the control unit, and the control unit controls the prong space adjusting unit to adjust the space between the prongs of the AGV forklift. And the control unit controls the fork tooth distance adjusting unit to stop working when the distance between the fork teeth of the AGV forklift is adjusted to the target distance. According to the utility model, the distance between the prongs of the AGV forklift is automatically adjusted, and the working efficiency of the AGV forklift is effectively improved.

The utility model discloses an automatic tension adjusting device for a safety belt braid. The automatic tension adjusting device comprises a rack, a pulling assembly, a machining platen, a furling frame and an anti-disengaging assembly. A transverse reinforcing plate is mounted at the bottom of the rack, a lithium ion battery storage box is mounted on one side of the upper surface of the transverse reinforcing plate, a pulling assembly is mounted on the other side of the upper surface of the transverse reinforcing plate, a machining table plate is mounted at the top of the rack through a rotating seat, and an anti-disengaging assembly is mounted on one side of the lower surface of the machining table plate. A first adjusting frame and a second adjusting frame are installed on the upper surface of the machining table plate, a limiting guide frame is fixed to the upper surface of the machining table plate and located between the first adjusting frame and the second adjusting frame, and a furling frame is fixed to the upper surface of the machining table plate. An operator can easily adjust the tension of the safety belt body to meet different machining requirements, so that the machining flexibility is improved, and the stability of the product quality is ensured.

The invention relates to the technical field of sewing machines, in particular to a multi-thread-trapper thread tension adjusting device which is characterized in that a driving motor drives a rotating shaft to rotate; the plurality of adjusting mechanisms are arranged in one-to-one correspondence with the adjusting nuts of the plurality of wire trappers; the adjusting mechanism comprises a friction wheel arranged opposite to the adjusting nut, a transmission piece connected with the rotating shaft and the friction wheel so as to drive the friction wheel to rotate, and a clutch piece connected with the friction wheel and driving the friction wheel and the adjusting nut to be pressed or not pressed. The invention further relates to a multi-yarn-trapper yarn tension adjusting method which adopts the device and comprises automatic adjustment and manual adjustment. The automatic adjustment is that the adjusting nuts of all the wire trappers or one or more of the wire trappers are compressed with the friction wheel, the driving motor drives the friction wheel to rotate through the rotating shaft and the transmission piece, and the friction wheel compressed with the adjusting nuts drives the adjusting nuts to rotate; the manual adjustment is that the adjusting nut of the wire clamp and the friction wheel are not tightly pressed, and the adjusting nut is manually rotated. Automatic synchronous or independent adjustment of the tension of the multi-thread-trapper thread can be achieved.

An automatic adjusting device for a coal conveyor belt comprises a drive roller, a trailing roller, and a conveyor belt, wherein the conveyor belt interacts with the drive roller at one end in a rolling manner, while the conveyor belt interacts with the trailing roller at another end in a rolling manner, wherein the conveyor belt is provided on its underside with an adjusting device, the adjusting device comprising an adjusting roller, a transverse adjusting device, and a longitudinal adjusting device, wherein the adjusting roller interacts with the conveyor belt in a rolling manner, the transverse adjusting device being used for a transverse movement of the adjusting roller, while the longitudinal adjusting device being used for a longitudinal movement of the adjusting roller, wherein one end of a central shaft of the adjusting roller interacts universally with a fastening element via a spherical connecting element, the underside of the fastening element being attached to the longitudinal adjusting device.wherein the other end of the central shaft is connected to the lateral adjustment device, the lateral adjustment device comprising a sector rail, a transmission rod, a rack and a toothed screen, the central shaft passing through the sector rail and then being attached to the transmission rod, a lower side wall of the transmission rod being attached to an upper side wall of the toothed screen. The present invention can, by means of the adjustment device, both tension the belt and correct the deviation of the belt.

The application provides a fan and an automatic speed regulation circuit and method thereof, and belongs to the technical field of fans, and comprises an alternating voltage positive circuit, a direct current conditioning circuit and a signal comparison output circuit; the alternating voltage positive circuit is used for positive processing of an alternating input signal and outputting an alternating reference signal; the direct current conditioning circuit is used for conditioning a direct current signal corresponding to a device direct current bus and outputting a direct current conditioning signal; the signal comparison output circuit is used for voltage comparison of the alternating reference signal and the direct current conditioning signal and outputting a PWM speed regulation signal; and the PWM speed regulation signal is output to a fan control end so as to automatically adjust the fan rotating speed according to the device operating power change. The application can directly generate the PWM speed regulation signal without the participation of an additional microcontroller or software algorithm in control, can realize the automatic speed regulation of the fan, and reduces the system control complexity and operating energy consumption.

The invention relates to the field of agricultural product processing equipment, in particular to a phase adjusting structure and an automatic adjusting tea frying machine based on the phase adjusting structure, the phase adjusting structure comprises a driving part and a transmission assembly, the transmission assembly comprises a transmission shaft, a connecting rod group and a swing rod, and the phase adjusting structure further comprises an eccentric wheel, the screw rod and screw sleeve adjusting mechanism is used for adjusting the distance between the fulcrum of the swing rod and the eccentric wheel, so that the initial angle and the swing amplitude of the frying plate are adjusted. The machine further comprises a rack, a controller and a frying plate; the synchronous belt transmission part is connected with the movable part; and the manual driving part and the automatic driving part are connected with the synchronous belt transmission part. The whole rigidity is effectively improved, vibration in the operation process is restrained, the repeated precision of the motion trail of the frying plate is guaranteed, the service life of the structure is prolonged, complexity and control redundancy of the mechanical structure are avoided, automatic adjustment is achieved, the machining efficiency is higher, and safety is higher.

The invention relates to the technical field of sewing machines, in particular to a thread tension adjusting device for multiple thread trappers, a driving motor drives a transmission mechanism to drive an adjusting motor to linearly move along the arrangement direction of the multiple thread trappers, the adjusting motor drives a friction wheel to rotate, and a clutch drives the friction wheel to be compressed or not compressed with adjusting nuts of the thread trappers. The invention further relates to a thread tension adjusting method of the multi-thread trapper, and the thread tension adjusting method adopts the device and comprises automatic adjustment and manual adjustment. The automatic adjustment is that an adjusting motor is opposite to a certain wire clamp, a friction wheel and an adjusting nut of the friction wheel are pressed tightly, and the adjusting motor drives the friction wheel to drive the adjusting nut to rotate; the manual adjustment means that the adjusting motor is not opposite to the wire trapper to be manually adjusted, or the friction wheel is not tightly pressed with an adjusting nut of the wire trapper to be manually adjusted, and the adjusting nut is manually rotated. And automatic and high-precision adjustment of the tension of the threads of the multiple thread trappers can be realized.

The utility model relates to the related technical field of ribbon looms, in particular to an active warp let-off device of a ribbon loom capable of dynamically adjusting tension, which comprises a frame and a mounting plate detachably connected with the frame. The connecting shaft is rotationally mounted on the mounting plate and is connected with the yarn roller through a gear set; the driving end of a speed reduction driving piece installed on the installation plate is connected with the connecting shaft through a chain wheel assembly. A weighing mechanism is further mounted on the mounting plate; a control system used for receiving a pressure signal sent by the weighing mechanism and controlling the driving speed of the speed reduction driving piece according to the pressure signal is further arranged on the mounting plate, and the driving speed of the speed reduction driving piece is controlled when the weighing mechanism detects that the weight of the yarn exceeds or is lower than a preset value of the system. Under transmission of the chain wheel assembly, tension adjustment of the yarn is buffered, force is prevented from directly acting on the yarn roller, and automatic adjustment of the tension degree of the yarn is achieved.

The invention discloses a self-adaptive intelligent regulation and control lip sealing device based on a slide valve mechanism. The device comprises a sealing ring body, an air spring, a rigid framework, a main air channel, the slide valve mechanism, an auxiliary lip O-shaped ring, an auxiliary lip air channel, a spoke type radial air channel and a pressure sensor. A slide valve mechanism responds to pressure fluctuation monitored by a pressure sensor, and dynamically controls gas to flow among a main gas channel, a radial gas channel and an auxiliary lip gas channel, so that self-adaptive adjustment of the holding force of a main lip part is realized: when overpressure is caused by vibration, gas is exhausted to an auxiliary lip to enhance sealing and active chip removal; and when low pressure is caused by abrasion, the holding force is recovered through air supplementation. The working mode comprises a normal cut-off state and automatic adjustment circulation, and the slide valve mechanism automatically resets after pressure balance. Control units are evenly arranged in the circumferential direction of the device, non-uniform pressure is monitored and coped independently, the exhaust-sealing-self-cleaning synergistic effect is formed, the sealing reliability and dynamic stability are remarkably improved, and the service life is remarkably prolonged.

The utility model relates to the technical field of municipal greening, in particular to a municipal greening watering and irrigation device which comprises a base, a water injection assembly, a moving assembly, a water storage tank, a spray head, a driving gear, a driven gear, a water conveying pipeline, an adjusting assembly, an irrigation assembly and an electric telescopic rod. A water injection assembly is arranged at the top of the water storage tank; a driving gear is arranged on the inner side of the top of the water storage tank; a driven gear is arranged on one side of the driving gear; a first water conveying pipeline is arranged on the inner side of the driven gear; an irrigation assembly is arranged at one end of the first water conveying pipeline, a nozzle is arranged at one end of the irrigation assembly, and an electric telescopic rod is arranged above the water storage tank; by means of an automatic adjusting mode, the angle and position of the spray head are flexibly adjusted according to green plant irrigation requirements, the watering position is accurately positioned, manual operation steps are simplified, the use flexibility of the device is improved, and therefore the practical value of the device is enhanced.

The invention belongs to the field of gas circuit breakers, and discloses a gas switch with an arcing air pressure automatic adjusting function, which comprises a switch body with a switching-on and switching-off direction and a piston rod capable of moving along the switching-on and switching-off direction; one end of the piston rod extends in the opening and closing direction, a piston rod inner cavity is formed in the piston rod, and a piston rod exhaust hole is formed in the side wall of the piston rod; the piston rod inner cavity extends in the extending direction of the piston rod and is open at one end of the piston rod, and a piston rod exhaust hole is formed in the open position. An elastic component is movably inserted into the end part of the piston rod, the elastic moving direction is matched with the opening and closing direction, and one end part of the elastic component corresponds to the inner cavity of the piston rod. Through the elastic assembly arranged on the inner cavity of the piston rod, the exhaust flow can be automatically adjusted according to the air pressure of arc hot gas, so that the air pressure of an arc combustion area is adjusted, the air pressure of arc blowing of the arc extinguish chamber is influenced, and self-adaption of the arc extinguish chamber to breaking current within a certain current range is achieved.

The utility model discloses a rubberizing mechanism and rubberizing equipment. The rubberizing mechanism comprises a rubberizing assembly, a detecting assembly and a punching assembly, the position information of adhesive tapes on the front and back sides of a pole piece is monitored in real time through a first visual detection unit and a second visual detection unit of the detection assembly, and when adhesive tape pasting position deviation is detected, the adhesive tapes are rapidly cut off through the punching assembly, the feeding speed is automatically adjusted, shutdown adjustment is not needed, and accurate alignment of the adhesive tape pasting positions on the two sides is ensured; and the problem of low production efficiency caused by shutdown adjustment due to position deviation in traditional equipment is avoided. And the whole rubberizing process is intelligently controlled by adopting the control assembly, the working procedures of detection, cutting, speed regulation and the like are automatically completed in a closed-loop control mode, manual intervention is remarkably reduced, and the defect that traditional equipment is low in intelligent degree is overcome.

The invention provides a variable-aperture deep-hole part contour dimension detection robot, and relates to the technical field of deep-hole part measurement. Comprising a front side wheel type driving structure, a hollow rotary table scanning mechanism, a rear side wheel type driving structure and the like. The front side wheel type driving structure is connected with the hollow rotary table scanning mechanism through a front side fixing flange, the rear side wheel type driving structure and the front side wheel type driving structure are completely the same, and only the connection directions of all parts are opposite. When the robot moves in the axial direction of the deep hole part with the variable inner diameter, the front side wheel type driving structure and the rear side wheel type driving structure are matched with each other to achieve radial automatic adjustment and inner wall supporting, and the hollow rotary table scanning mechanism drives a mounting wheel frame through a rotary table driving motor, so that four distance measuring sensors evenly distributed in the circumferential direction obtain contour point information. According to the invention, the problems that the detection precision and efficiency of the inner contour of the existing deep hole part are low, the measured aperture cannot be changed, the hole depth range is small, and the detection requirements of related industries on variable-diameter deep hole parts cannot be met can be solved.