CN207379725U - A kind of crawler dozer load all-around test stand - Google Patents

A kind of crawler dozer load all-around test stand Download PDF

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Publication number
CN207379725U
CN207379725U CN201721329388.5U CN201721329388U CN207379725U CN 207379725 U CN207379725 U CN 207379725U CN 201721329388 U CN201721329388 U CN 201721329388U CN 207379725 U CN207379725 U CN 207379725U
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dozer
bull
tested
crawler
loading
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CN201721329388.5U
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张成梁
王永福
李蕾
周军
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University of Jinan
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University of Jinan
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Abstract

The utility model discloses a kind of crawler dozer load all-around test stands, including test section and loading drive area, the loading crawler belt of bilateral independence is provided in loading drive area, it is individually contacted with the crawler belt of tested bull-dozer both sides, and with the driving wheel Synchronous Transmission of tested bull-dozer both sides;Two independent electric A.C. dynamometers being connected with the transmission shaft of tested bull-dozer both sides are provided in test section, and then are respectively that corresponding loading crawler belt provides loading brake force;Floating is additionally provided in test section and prevents device, its one end is in contact with the perching knife forepart of tested bull-dozer, and the other end is respectively connected with guiding axis and backup rolls;The other end of backup rolls is fixed;The other end of guiding axis is stretched in a slideway, to float sliding back and forth for device is prevented to provide guiding and support.Its complete bull-dozer Road test experiment it is quick, efficient, accurately measure.

Description

A kind of crawler dozer load all-around test stand
Technical field
The utility model belongs to bull-dozer cutting load testing field more particularly to a kind of crawler dozer load compbined test Platform.
Background technology
Bull-dozer is a kind of engineering truck.Front is equipped with large-scale metal dozer blade, and when use puts down dozer blade, to front shovel It cuts and pushes mud, sand and stone etc., soil-shifting cutter position and angle can adjust, and can individually complete to cut the earth, muck haulage and unload geotechnological work. Bull-dozer has the characteristics that operation is flexible, rotation is convenient, required working face is small, travel speed is fast.It is primarily adapted for use in one to three The short fortune of shallow cut of class soil, such as site clearing or smooth, the little foundation pit of cutting depth and backfill push away and build the little roadbed of height Deng.
Bull-dozer can be divided into two kinds of crawler type and rubber-tyred.Crawler dozer attachment tractive force is big, and grounding pressure is small (0.04~0.13MPa), climbing capacity is strong.Wheeled dozer travel speed is high, and maneuverability, cycle time for working is short, fortune Defeated convenient transfer, but tractive force is small, suitable for need to often convert the situation of building site and field work.
It is to examine its performance that experiment is carried out to the bull-dozer not dispatched from the factory, observes indices, if reach what is dispatched from the factory It is required that have very important significance to preventing failure, the tool that prolongs the service life after sale.At present, loaded before the dispatching from the factory of bull-dozer Experiment is to carry out the walking dozing of long-time, big distance in spacious place, it is impossible to use complex detection equipment, test knot Fruit can only not detect data accumulation by the observation of the driving experience and field instrument of driver, and it is accurately fixed to carry out Amount analysis, it is impossible to timely feedback problem points.In addition, post-job bull-dozer needs to re-start cleaning and spray painting work, waste Substantial amounts of human and material resources.
Therefore, at present there is an urgent need for it is a kind of need not walk on a large scale, being capable of bull-dozer under the various operating modes of fast automatic detecting The test platform of performance parameter is horizontal to improve engineering machinery synthesis quality inspection.
Utility model content
In order to solve the deficiencies in the prior art, the utility model provides a kind of crawler dozer load compbined test Platform, the crawler dozer that can be directed under different operating modes carry out quickly and accurately compbined test.
A kind of crawler dozer load all-around test stand of the utility model including test section and loads drive area, The loading crawler belt of bilateral independence is provided in loading drive area, is individually contacted with the crawler belt of tested bull-dozer both sides, and With the driving wheel Synchronous Transmission of tested bull-dozer both sides;It is provided with what is be connected with the transmission shaft of tested bull-dozer both sides in test section Two independent electric A.C. dynamometers, and then be respectively that corresponding loading crawler belt provides loading brake force;
Floating is additionally provided in test section and prevents device, its one end is in contact with the perching knife forepart of tested bull-dozer, another End is respectively connected with guiding axis and backup rolls;The other end of backup rolls is fixed;The other end of guiding axis stretches to a slideway It is interior, to float sliding back and forth for device is prevented to provide guiding and support.
Wherein, double crawler belts design that independent loads control can be implemented as tested bull-dozer both sides contact track and provide respectively Brake force, in addition to basic walking working condition measurement is completed, it is important to can be carried out to the power and rotating speed of bull-dozer unilateral side crawler belt Independent measurement, and then the load test under steering situation, walking linearity test etc. can be completed.
Further, damping isolation strip is additionally provided between test section and loading drive area, for reducing test section and adding Carry the mutual vibration effect of drive area.
Further, backup rolls be fixed on it is fixed prevent on device, slideway also prevents the one lateral in it of device from fixed Portion extends.
Wherein, it is fixed that device is prevented on the one hand to be used for fixing backup rolls, realize the tested bull-dozer of accurate measurement braking, The pressure of front pump, rear pump and slippage pump etc.;On the other hand set slideway, for float prevent device slide back and forth provide guiding and Support.
Further, the crawler dozer load all-around test stand further includes tested protecting device of dozer, uses To prevent tested bull-dozer ablation experiment platform.
Specifically, tested protecting device of dozer can be steel wire rope, be respectively arranged at tested bull-dozer front end and Rear end.
It should be noted that tested protecting device of dozer can also be other protective devices, such as steel plate fence.
Further, the crawler dozer load all-around test stand, further includes information Perception unit and control pipe Manage unit;
Information Perception unit includes the sensor for being arranged at the different test positions of tested bull-dozer, for detecting default work Running state data during the different test events of bull-dozer is tested under condition, and is sent to control administrative unit.
Further, described information perceives is in communication with each other between unit and control administrative unit by CAN bus.
Compared with prior art, the beneficial effects of the utility model are:
The crawler dozer load all-around test stand of the utility model, need not walk on a large scale, can quickly from The test platform of the performance parameter of bull-dozer under the dynamic various operating modes of detection, it is horizontal to improve engineering machinery synthesis quality inspection.
Description of the drawings
The accompanying drawings which form a part of this application are used for providing further understanding of the present application, and the application's shows Meaning property embodiment and its explanation do not form the improper restriction to the application for explaining the application.
Fig. 1 is a kind of crawler dozer load all-around test stand structure diagram of the utility model.
Wherein, 1 it is, fixed to prevent device, 2, pressure sensor, 3, guiding axis, 4, backup rolls, 5, floating prevents device, 6, Perching knife, 7, bull-dozer, 8, rear steel wire rope, 9, driven wheel, 10, support column, 11, the crawler belt of tested bull-dozer, 12 loading crawler belts, 13rd, carrying roller, 14, driving wheel, 15, transmission shaft, 16, damping isolation strip, 17, infinitely variable transmission, 18, preceding steel wire rope, 19, torque Speed probe, 20, electric A.C. dynamometer.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.It is unless another It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " bag Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
Fig. 1 is a kind of crawler dozer load all-around test stand structure diagram of the utility model.
As shown in Figure 1, a kind of crawler dozer load all-around test stand of the utility model, including test section and adds Drive area is carried, loads and loading crawler belt 12 is provided in drive area, individually contacted with the crawler belt 11 of tested bull-dozer, and with being tested 14 Synchronous Transmission of driving wheel of bull-dozer 7;The AC power being connected with the transmission shaft 15 of tested bull-dozer 7 is provided in test section Dynamometer machine 20, and then provide loading brake force for loading crawler belt 12;
It is additionally provided with floating in test section to prevent to fill 5 and put, its one end is in contact with 6 forepart of perching knife of tested bull-dozer 7, separately One end is respectively connected with guiding axis 3 and backup rolls 4;The other end of backup rolls 4 is fixed;The other end of guiding axis 3 stretches to In one slideway, to float sliding back and forth for device 5 is prevented to provide guiding and support.
In specific implementation, floating prevents device 5 that the bumping post of block structure baffle or column construction can be used to realize.
As shown in Figure 1, the internal layer of loading crawler belt 12 realized using steel tracks chain it is synchronous with driving wheel 14 and driven wheel 9 Transmission, loading crawler belt outer layer use hard pattern rubber to increase the attachment coefficient between bull-dozer crawler belt.
Electric A.C. dynamometer 20 passes sequentially through torque speed sensor 19, infinitely variable transmission 17, transmission shaft 15 and driving Wheel 14 provides loading brake force for loading crawler belt 12.
Driven wheel 9, carrying roller 13 and support column 10 provide necessary supporting role for entire detection platform.
Wherein, damping isolation strip 16 is additionally provided between test section and loading drive area, for reducing test section and loading The mutual vibration effect of drive area.
Backup rolls 4 are fixed on fixed prevention device 1, and slideway is also from fixed its lateral internal stretch for preventing device 1.
Wherein, it is fixed that device is prevented on the one hand to be used for fixing backup rolls, realize the tested bull-dozer of accurate measurement braking, The pressure of front pump, rear pump and slippage pump etc.;On the other hand set slideway, for float prevent device slide back and forth provide guiding and Support.
It is fixed to prevent device 1 be to fix stereo block, and be fixed in test section.
It should be noted that fixed prevent device 1 or fixed stereoscopic column, and it is fixed in test section.
The jacking force of bull-dozer prevents device 5 and backup rolls 4 from being ultimately applied to the fixed pressure prevented on device 1 by floating Force snesor 2.
The crawler dozer load all-around test stand, further includes tested protecting device of dozer, for prevent by Survey bull-dozer ablation experiment platform.
Specifically, tested protecting device of dozer can be steel wire rope, be respectively arranged at tested bull-dozer front end and Rear end.
Such as:After bull-dozer drives into the test position on loading crawler belt 12, forepart and afterbody fasten preceding steel wire rope 18 respectively Safeguard protection is provided with rear steel wire rope 8.
It should be noted that tested protecting device of dozer can also be other protective devices, such as steel plate fence.
In specific implementation, the crawler dozer load all-around test stand further includes information Perception unit, bag The sensor for the different test positions for being arranged at tested bull-dozer is included, for detecting the different surveys that bull-dozer is tested under default operating mode Running state data during examination project;And
Administrative unit is controlled, receive information perceives the running state data detected by unit, and then according to default Crawler dozer load compbined test evaluation model, obtains integrated testability evaluation index.
Bull-dozer compbined test needs to carry out the detection of multiple projects, and a variety of biographies are used by the different designs of detection type Sensor.Specifically, information Perception unit includes:
Onboard diagnostic system is used to detect engine speed, handle voltage, handle electric current, foot throttle voltage, left and right horse Up to rotating speed and pressure etc.;
Pressure sensor is used to detect the pressure of braking, front pump, rear pump and slippage pump etc.;
Temperature sensor is used to detect the temperature change of left and right transmission terminal;Noise and acceleration transducer are right respectively The vibration of key position point and abnormal sound are detected;
Cleannes detector is used to carry out cleannes detection to the hydraulic system of crucial pipeline;Industrial camera passes through bat Take the photograph the detection that fluoroscopic image completes grease leakage scenarios;
Electric A.C. dynamometer is used to obtain the torque of loading system, torque, rotating speed, electric current, voltage, frequency, power Factor etc..
Each sensor in information Perception unit is separately mounted to the corresponding test position of bull-dozer.
In specific implementation, industrial personal computer can be used to realize in control administrative unit.
Described information perceives to be in communication with each other between unit and control administrative unit by CAN bus.
In another embodiment, information Perception unit also carries out data biography with control administrative unit by data acquisition list It is defeated.
Specifically, the mode at data acquisition unit use site movable operation station, Multichannel data acquisition module have been responsible for Into the data sampling of high-speed, high precision, number adopts module and serial server by the multi-signals shape such as 4-20mA, RS232 of sensor Formula passes to control administrative unit by standard ICP/IP protocol from Industrial Ethernet.
The crawler dozer load all-around test stand of the utility model, need not walk on a large scale, can quickly from The test platform of the performance parameter of bull-dozer under the dynamic various operating modes of detection, it is horizontal to improve engineering machinery synthesis quality inspection.
It is above-mentioned although specific embodiments of the present invention are described with reference to the accompanying drawings, but not to this practicality newly The limitation of type protection domain, those skilled in the art should understand that, on the basis of the technical solution of the utility model, ability Field technique personnel need not make the creative labor the various modifications or changes that can be made still in the protection model of the utility model Within enclosing.

Claims (6)

1. a kind of crawler dozer load all-around test stand, which is characterized in that including test section and loading drive area, loading The loading crawler belt of bilateral independence is provided in drive area, is individually contacted with the crawler belt of tested bull-dozer both sides, and with quilt Survey the driving wheel Synchronous Transmission of bull-dozer both sides;Two to be connected with the transmission shaft of tested bull-dozer both sides are provided in test section Independent electric A.C. dynamometer, and then be respectively that corresponding loading crawler belt provides loading brake force;
Floating is additionally provided in test section and prevents device, its one end is in contact with the perching knife forepart of tested bull-dozer, the other end and Guiding axis and backup rolls are respectively connected with;The other end of backup rolls is fixed;The other end of guiding axis is stretched in a slideway, is It floats and the offer that slides back and forth of device is prevented to be oriented to and support.
2. a kind of crawler dozer load all-around test stand as described in claim 1, which is characterized in that test section and plus Load is additionally provided with damping isolation strip between drive area, for reducing test section and loading the mutual vibration effect of drive area.
3. a kind of crawler dozer load all-around test stand as described in claim 1, which is characterized in that backup rolls are fixed It is prevented in fixed on device, slideway is also from fixed its lateral internal stretch for preventing device.
A kind of 4. crawler dozer load all-around test stand as described in claim 1, which is characterized in that the crawler type Bull-dozer load all-around test stand, further includes tested protecting device of dozer, for preventing tested bull-dozer ablation experiment from putting down Platform.
A kind of 5. crawler dozer load all-around test stand as described in claim 1, which is characterized in that the crawler type Bull-dozer load all-around test stand further includes information Perception unit and control administrative unit;
Information Perception unit includes the sensor for being arranged at the different test positions of tested bull-dozer, for detecting under default operating mode Running state data during the different test events of tested bull-dozer, and it is sent to control administrative unit.
A kind of 6. crawler dozer load all-around test stand as claimed in claim 5, which is characterized in that described information sense Know and be in communication with each other between unit and control administrative unit by CAN bus.
CN201721329388.5U 2017-10-16 2017-10-16 A kind of crawler dozer load all-around test stand Active CN207379725U (en)

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Application Number Priority Date Filing Date Title
CN201721329388.5U CN207379725U (en) 2017-10-16 2017-10-16 A kind of crawler dozer load all-around test stand

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Application Number Priority Date Filing Date Title
CN201721329388.5U CN207379725U (en) 2017-10-16 2017-10-16 A kind of crawler dozer load all-around test stand

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107505145A (en) * 2017-10-16 2017-12-22 济南大学 A kind of crawler dozer load all-around test stand and its method
CN110470491A (en) * 2019-09-05 2019-11-19 湖南沃工智电科技有限公司 A kind of crawler tractor production crawler belt antiskid device for detecting performance

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107505145A (en) * 2017-10-16 2017-12-22 济南大学 A kind of crawler dozer load all-around test stand and its method
CN107505145B (en) * 2017-10-16 2023-08-25 济南大学 Comprehensive load test platform and method for crawler dozer
CN110470491A (en) * 2019-09-05 2019-11-19 湖南沃工智电科技有限公司 A kind of crawler tractor production crawler belt antiskid device for detecting performance
CN110470491B (en) * 2019-09-05 2020-12-29 湖南沃工智电科技有限公司 Track anti-skid property detection device for production of track tractor

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