69results about "Vehicle endless-track testing" patented technology

The invention belongs to the technical field of strength detection, and relates to a track strength detection device and method. The device comprises a detection frame, a torsion stretching part arranged on the detection frame, a soaking box, a stretching roller, a positioning roller, a hammering assembly, a driving part and the like. Static stretching detection, dynamic stretching detection, torsion stretching detection, impact working condition detection, rotation load detection and muddy water soaking load detection of the track body can be realized, and on the basis of the static stretching detection or the dynamic stretching detection, the detection precision is improved. Combined detection is carried out in combination with one to four of four detection modes of torsion stretching detection, impact working condition detection, rotation load detection and muddy water soaking load detection, working conditions of the crawler belt in different working scenes can be simulated, and fatigue performance of the crawler belt under various complex stress conditions can be comprehensively detected. And the reliability of the track in actual use is ensured.

The invention relates to a dynamic rotary shear testing device and a dynamic rotary shear testing method for evaluating a crawler-soil shear effect of a deep-sea mining crawler. Comprising a four-state environmental control system which is composed of different-state soil and an annular structure and simulates the surface characteristics of deep-sea soft soil in transition from a flow state to a plastic shape along with depth increase; the soil stress simulation system is composed of an air bag and a sand cushion layer and accurately reproduces the stress state of the crawler teeth in the deep sea environment; the soil body loading system is composed of a sand cushion layer, an air bag and a high-pressure air cylinder and is used for simulating deep sea soil environments with different burial depths; the track tooth dynamic rotary shear test system is composed of a blade, a torsion bar and a variable frequency motor, and simulates the influence of multiple types of track teeth on the shear strength of deep sea soil; and the data acquisition system consists of a pressure sensor and a dynamic torque sensor. According to the invention, the shear failure process of multiple types of crawler teeth to soil under different deep-sea working conditions is simulated with high precision, the device is simple and easy to operate, and technical support is provided for design optimization of a deep-sea crawler and a crawler-soil action mechanism.

A method, a device, and a system for contactlessly measuring wear of one or more components of an undercarriage assembly of a work machine are disclosed. For example, a method includes identifying a component to be measured for wear by a wear measuring device comprising a first sensor and a second sensor; based on the component, selecting component information associated with the component for the wear measuring device; simultaneously measuring: by the first sensor configured based on the component information, a first wear distance from the first sensor to a first measurement surface of the component, and by the second sensor configured based on the component information, a second wear distance from the second sensor to a second measurement surface of the component, and determines a wear level of the component based at least in part on the first wear distance and the second wear distance.

A system for monitoring a tension in a track of a work machine includes one or more sensors coupled to the work machine. A sensor, of the one or more sensors, is configured to obtain a distance information related to a distance between the sensor and the track of the work machine. The sensor includes a pulse Radio Detection and Ranging (RADAR) sensor. The system includes a controller including at least one memory and at least one processor. The memory is configured to store an expected distance between the sensor and the track of the work machine. The processor is configured to determine an actual distance between the sensor and the track of the work machine, based on the distance information obtained from the sensor and determine, based on the actual distance being greater than the expected distance, that the tension in the track is below a tension threshold.

Device for online diagnosis of faults in drive train components of a mobile working machine, comprising: o an anomaly detection unit (101) designed to detect an atypical behavior of at least one operating parameter (OP) of the powertrain components; a first test unit (102) connected to the anomaly detection unit (101), which is configured to check whether the detected atypical behavior can be attributed to a known fault behavior; characterized by a second test unit (104) connected to the first test unit (102), which, if the fault behavior is classified as unknown, is configured to check in a fault database whether data on this unknown fault exists; and o a recording and storage unit (106) connected to the second test unit (104), which is designed to store the course of the anomalous operating size (BG) in the fault database if no data is yet available for the unknown fault.

Systems, apparatuses, computer program products, and methods can determine a distance between a pair of markers (300) removably coupled to a pair of non-adjacent joints (117) on a track assembly (116) of a track-type machine (110) using imaging captured by a camera (212) of a mobile electronic device (114). The determined distance between a pair of markers (300) can be representative of a track pitch extension, which can be used to determine wear of the track assembly (116).

In one instance, disclosed herein is a computer-implemented method for monitoring an undercarriage of a track-type machine (100), the computer-implemented method comprising: accessing a reduced order model (ROM) (300) corresponding to the track-type machine (100); receiving an estimated wear level of at least one undercarriage (112) component of the track-type machine (100) and machine signal data generated by the track-type machine (100); generating an updated estimated wear level of the at least one undercarriage (112) component using the estimated wear level, the machine signal data, and the ROM (300); and comparing the updated estimated wear level of the at least one undercarriage (112) component to a wear level threshold.

This invention discloses a performance testing method for engineering rubber tracks. Using the rubber track—a walking component of engineering machinery—as the test object, the rubber track is installed on the engineering machinery device. Various walking routes, operations, and driving habits are simulated on working surfaces with different terrains, slopes, and hardness levels to test the rubber track. Under the same outdoor testing conditions, two rubber tracks on the same engineering machinery are compared to characterize the influence factors of different product designs, different formula designs, different working conditions, or different driving habits on the service life of engineering machinery rubber tracks, providing strong data support for the development of high-performance rubber track products.

A method of measuring a track is provided that has a code spaced from a worn tread surface in a thickness direction. Visual data is obtained from the track and the code, and from this visual data a length of the code is determined. The code is located between the worn tread surface and a point, and a length of a position of the code extends from the point to the code. A worn tread surface to code length is determined using the visual data. A worn thickness is calculated by adding the length of the position of the code to the worn tread surface to code length.

The invention discloses a track shoe-deep sea substrate multi-degree-of-freedom interaction experimental device which comprises a simulation soil tank, a vertical rod, a vertical sliding block, a telescopic module, a vertical module, a pressure sensor and a track shoe. The simulation soil tank is of a cylindrical structure, the simulation soil tank is filled with a simulation substrate formed by mixing bentonite and water, the upper layer of the simulation substrate is fluid, and an underwater environment is simulated; the simulation soil tank is of a cylindrical structure, the simulation soil tank is filled with a simulation substrate formed by mixing bentonite and water, the upper layer of the simulation substrate is fluid, and an underwater environment is simulated; the side surface of the vertical rod has a slide rail function, and the vertical module can move up and down through the slide rail surface, so that flexible contact with a soil interface of a simulated substrate is facilitated; the telescopic module can relatively rotate around the vertical rod to realize different radius lengths, so that the interaction between the track shoe with different rotating radiuses and the simulated substrate is realized, and meanwhile, the direct shear motion can be realized; the vertical module can move up and down in the hole of the telescopic module to simulate the pressing movement of the track shoe.

The system, apparatus, computer program product, and method can use imagery captured by a camera (212) of a mobile electronic device (114) to determine the distance between a pair of markers (300) removably coupled to a pair of non-adjacent joints (117) on a track assembly (116) of a track-type machine (110). The determined distance between the pair of markers (300) can represent a track pitch extension that can be used to determine wear on the track assembly (116).

A vehicle with a track system including a track for traction of the vehicle on a ground can be monitored (e.g., during operation of the vehicle) to obtain information regarding the vehicle, including information regarding the track system, such as a temperature and / or another characteristic of a wheel of the track system sensed by a sensor associated with that wheel, which can be used to inform a user (e.g., an operator of the vehicle) and / or control the vehicle (e.g., a speed of the vehicle), for properly aligning the track and / or other purposes. This may be useful, for example, to help prevent rapid wear or other deterioration of the track and / or for various other reasons.

Provided is a performance measuring and diagnosing device that can more appropriately diagnose the state of a machine based on a frequency analysis result acquired from the state information of the machine. A performance measuring and diagnosing device for a machine according to the present invention includes an information acquisition section, an information preprocessing section, a frequency feature distinguishing section, a frequency feature estimating section, a performance measuring and diagnosing section, and a display section. The information acquisition section acquires state information of the machine. The information preprocessing section preprocesses the state information acquired by the information acquisition section. The frequency feature distinguishing section executes frequency analysis on the data after preprocessing by the information preprocessing section to distinguish between a state frequency feature candidate and a frequency feature indicating noise. The state frequency feature candidate is a candidate for a frequency feature indicating a state of the machine. The frequency feature estimating section estimates the frequency feature corresponding to the state of the machine from among the state frequency feature candidates based on the state frequency feature candidate and the frequency feature indicating noise. The performance measuring and diagnosing section identifies a feature based on a number and a position relationship of the frequency features estimated by the frequency feature estimating section and diagnoses the state of the machine. The display section displays the diagnosed state of the machine on a screen.

A control device (4) for this dynamometer system comprises: a feedback controller (50) that generates a feedback input signal on the basis of a torque detection signal and a feedback command signal; a natural vibration suppression circuit (52) that generates a correction signal so that natural vibration of a vibration element is suppressed; an inverter input generation unit (53) that generates an inverter input signal on the basis of the feedback input signal and the correction signal; and a command generation unit (7) that generates the feedback command signal on the basis of the torque detection signal and a speed detection signal. The command generation unit (7) generates the feedback input signal from a signal generated on the basis of the speed detection signal and the torque detection signal through band stop processing that attenuates a component within a stop band.

In some implementations, one or more devices (178, 180) may determine whether an electrical circuit is closed or open, the electrical circuit including electrodes (330) of the sensor device (180), the electrical circuit being closed based on the electrodes (330) being immersed in a lubricant in a cavity of a component of a track assembly (170, 172, 174, 176, 178) of the machine (100), the electrical circuit being open based on the electrodes (330) not being immersed in the lubricant in the cavity. The one or more devices (178, 180) may generate sensor data based on determining that the electrical circuit is open, the sensor data indicating that a level, of the lubricant in the cavity, does not satisfy a level threshold. The one or more devices (178, 180) may cause the machine (100) to perform an action based on the sensor data indicating that the level does not satisfy the level threshold.

A track system of a vehicle can be monitored (e.g., during operation of the vehicle) to obtain information about the track system which can be used for various purposes, such as, for example, to convey the information about the track system to a user (e.g., an operator of the vehicle) and / or to control the vehicle, for instance, by controlling a speed of the vehicle depending on a state (e.g., a temperature and / or one or more other physical characteristics) of the track system. This may be useful, for example, to gain knowledge about a track of the track system, to help prevent rapid wear or other deterioration of the track of the track system (e.g., blowout), and / or to adapt how fast or slow the vehicle moves in order to protect the track of the track system while permitting the speed of the vehicle to be greater over short periods (e.g., when travelling on or crossing roads or other particular areas).

To enable tire testing to be performed with particularly high reliability, a support unit for a tire testing stand is provided. [Solution] The support unit (3) comprises a support unit (21) and a coating unit (23). The support unit comprises an inlet portion (25) defining an inlet opening (27) and a number of outlet portions. Each outlet opening (31) is connected to the inlet opening such that when pressurized gaseous fluid flows into the inlet opening, the pressurized gaseous fluid flows out from each outlet opening. The coating unit comprises a number of passage portions. Each passage portion (33) defines a passage opening (35). When pressurized gaseous fluid flows out of an outlet opening, the outlet openings and the passage openings assigned to the outlet openings are arranged relative to each outlet opening such that the gaseous fluid flowing out of the outlet opening passes through the passage openings assigned to the outlet openings.

Fault prediction of components of a track assembly by a direct oil contact sensor device In some embodiments, one or more devices (178, 180) can determine whether an electrical circuit is closed or open, the electrical circuit includes an electrode (330) of a sensor device (180), the electrical circuit is closed based on the electrode (330) being immersed in a lubricant within a cavity of a component of a track assembly (170, 172, 174, 176, 178) of the machine, and the electrical circuit is open based on the electrode (330) not being immersed in the lubricant within the cavity. One or more devices (178, 180) may generate sensor data indicating that the level of lubricant within the cavity does not meet a level threshold based on determining that the electrical circuit is open. One or more devices (178, 180) may cause the machine (100) to perform an action based on the sensor data indicating that the level does not meet the level threshold.

A system for monitoring at least one physical characteristic of an endless track includes a sensor removably received within the endless track and at least one probe received within the endless track. The sensor is adapted for wireless communication with a receiver. The at least one probe is adapted for operative communication with the sensor, and for detecting the at least one physical characteristic of the endless track and conveying the at least one physical characteristic to be sensed by the sensor. An endless track having a housing embedded in one inner lug is also provided. The housing includes a receptacle received in the inner lug and a lid removably connected to the receptacle for selectively providing access to an interior of the receptacle. The sensor is receivable in the housing. A method for assessing a secondary physical characteristic of an endless track is also provided.

The present application relates to the technical field of deep-sea mining, in particular to a track-type ore collecting vehicle walking performance test method based on intelligent carving of seabed topography. The track-type ore collecting vehicle walking performance test method based on intelligent carving of seabed topography has the following steps: (1) drilling and sampling in-situ on the seabed of deep sea, analyzing mineral composition and determining particle size distribution, and determining basic physical and mechanical properties by in-situ test; (2) preparing seabed soil sample similar materials for laboratory simulation test; (3) making model test box and scaled ore collecting vehicle; (4) designing various experimental simulation terrains; (5) using intelligent robot to control intelligent paving mechanical arm and intelligent carving mechanical arm to carry out additive paving and subtractive cutting; additive paving is mainly used for automatic paving of seabed soil sample similar materials, and subtractive cutting is mainly used for cutting and machining of special hard rock terrain.

The system may include a first device and a second device. The first device may be configured to be associated with a component of the machine. The second device may be configured to provide one or more interrogating magnetic signals to the first device and determine whether a responsive magnetic signal is received from the first device based on providing the one or more interrogating magnetic signals. The second device may selectively provide first wear information indicative of a first amount of wear on the component or second wear information indicative of a second amount of wear on the component. The first information may be provided if a responsive magnetic signal is received from the first device. The second wear information may be provided if a responsive magnetic signal is not received from the first device. The second wear amount may exceed the first wear amount.

The invention relates to the field of engineering machinery and the technical field of automatic driving test, and discloses a portable automatic driving test platform of a crawler-type engineering van, which comprises a main frame, a chassis assembly is assembled at the bottom of one end of the main frame, and a front scraper knife assembly is fixedly arranged at the front part of the chassis assembly. Two sets of electric push rods are fixedly assembled on the two sides of the front scraper knife assembly, connecting and fixing supports are connected to the two sides of the rear portion of the front scraper knife assembly, a battery support is installed at the bottom of the main frame, and five different electric appliance installation plates are assembled in the middle of the main frame. The driving wheel drives the crawler belt to rotate through power output by the servo motor and the speed reducer, so that a vehicle runs, the riding wheel and the tensioning wheel are used for keeping the tensioning degree and stability of the crawler belt, and it is ensured that friction force between the crawler belt and the ground can be normally transmitted and play a role. The problems that in an existing engineering vehicle, a driving system is mainly driven by an engine, so that the engineering vehicle is large in size, large in weight and not environmentally friendly, a controller interface is not opened, an automatic driving control sensor is inconvenient to install, and technical research and development tests of automatic driving of the engineering vehicle are not facilitated are solved.

The utility model relates to the technical field of track abrasion testing, and discloses a track abrasion testing device which comprises an operation table, one end of the top of the operation table is fixedly connected with a fixed installation block, a servo motor is arranged on the rear surface of the fixed installation block, and the output rear end of the servo motor penetrates through the interior of the fixed installation block. The surface of the fixed mounting block is movably connected with a driven wheel through a T-shaped positioning rod, and the outer side of the surface of the driving wheel and the outer side of the surface of the driven wheel are sleeved with a connecting belt. According to the crawler belt, a single-section crawler belt can be installed through the arranged connecting and installing mechanism and the arranged connecting and adjusting mechanism, and meanwhile the connecting and adjusting mechanism can adjust the height of the friction block, so that the crawler belt body can make contact with the friction block when running along with the connecting belt and the connecting and installing mechanism; the crawler belt abrasion testing device is simple in structure and convenient to operate.

The present invention belongs to the technical field of strength detection, and relates to a crawler strength detection device and method. The present invention includes a detection frame, a torsional stretching component, an immersion tank, stretching rollers, positioning rollers, a hammering component, a driving component, etc. provided on the detection frame. It can realize static stretching detection, dynamic stretching detection, torsional stretching detection, impact condition detection, rotational load detection and muddy water immersion load detection of the crawler body. Moreover, on the basis of static stretching detection or dynamic stretching detection, it can combine one to four of the four detection methods of torsional stretching detection, impact condition detection, rotational load detection and muddy water immersion load detection for combined detection, which can simulate the working conditions of the crawler under different working scenarios, comprehensively detect the fatigue performance of the crawler under various complex stress conditions, and ensure the reliability of the crawler in actual use.

The machine (100) and the method utilize a tracked undercarriage (101) comprising a frame (201) comprising a central body (202), a front transverse assembly (203a) and a rear transverse assembly (203b) connected to the central body (202) and extending on two opposite sides. There are also a pair of lateral tracks (204, 205), each one of said tracks being connected, at the front and at the rear, to the ends of the transverse assemblies (203a, 203b). It is envisaged that the base machine (102) comprises excavation equipment (103, 104, 105, 06) adapted to take different working positions or configurations. The tracked undercarriage (101) further comprises a pair of front load cells (208), one mounted between a lateral track (204) and the front transverse assembly (203a), and the other mounted between the other lateral track (205) and the front transverse assembly (203a). There are also a pair of rear load cells (208), one mounted between a lateral track (204) and the rear transverse assembly (203b), and the other mounted between the other lateral track (205) and the rear transverse assembly (203b). Each one of the load cells (208) is configured for detecting force data ( Fantdx, Fantsx, Fpostdx, Fpostsx) indicative of the reaction force exerted between the associated lateral track (204, 205) and the respective transverse assembly (203a, 203b). The machine further comprises a control system (CPU) configured for computing a barycentre planar position (XG, ZG) of the machine (100) situated substantially at the level of a reference plane (X- Z). The barycentre planar position (XG, ZG) is computed as a function of the force data ( Fantdx, Fantsx, Fpostdx, Fpostsx).

To provide a performance measurement diagnostic device which can more properly diagnose a state of a machine on the basis of a frequency analysis result obtained from state information of the machine.SOLUTION: A performance measurement diagnostic device for measuring and diagnosing a performance of a machine comprises: an information acquisition unit which acquires state information of the machine; an information pre-processing unit which performs pre-processing of the state information acquired by the information acquisition unit; a frequency feature discrimination unit which discriminates a state frequency feature candidate being a candidate of a frequency feature indicating a state of the machine and a frequency feature indicating noise by performing frequency analysis of data after pre-processing by the information pre-processing unit; a frequency feature estimation unit which estimates a frequency feature corresponding to the state of the machine from the state frequency feature candidates on the basis of the state frequency feature candidates and the frequency feature indicating the noise; a performance measurement diagnostic unit which specifies a feature on the basis of the number of frequency features estimated by the frequency feature estimation unit and the positional relation, and diagnoses the state of the machine; and a display unit which displays the diagnosed state of the machine on a screen.SELECTED DRAWING: Figure 7