CN105004458B - Loading shovel forces testing device and method of testing - Google Patents

Loading shovel forces testing device and method of testing Download PDF

Info

Publication number
CN105004458B
CN105004458B CN201510439006.3A CN201510439006A CN105004458B CN 105004458 B CN105004458 B CN 105004458B CN 201510439006 A CN201510439006 A CN 201510439006A CN 105004458 B CN105004458 B CN 105004458B
Authority
CN
China
Prior art keywords
force sensor
radial force
radial
mounting seat
resistance strain
Prior art date
Application number
CN201510439006.3A
Other languages
Chinese (zh)
Other versions
CN105004458A (en
Inventor
郁录平
向岳山
路宇
张长伟
薛雪
胡羽成
李鹏波
Original Assignee
长安大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 长安大学 filed Critical 长安大学
Priority to CN201510439006.3A priority Critical patent/CN105004458B/en
Publication of CN105004458A publication Critical patent/CN105004458A/en
Application granted granted Critical
Publication of CN105004458B publication Critical patent/CN105004458B/en

Links

Abstract

The present invention discloses a kind of loading shovel forces testing device and method of testing, and described device includes right radial force sensor mounting seat, right radial force sensor, right radial force sensor installation sleeve, right lateral force sensors, left lateral force sensors, left radial force sensor installation sleeve, left radial force sensor, left radial force sensor mounting seat, left lateral force sensors mounting seat, right lateral force sensors mounting seat and some resistance strain gages;The present invention is improved by the structure at the hinge to scraper bowl and swing arm, and is provided with right radial force sensor, right lateral force sensors, left lateral force sensors and left radial force sensor for measuring side force F suffered on the bearing pin at O axlesa, bearing pin at O axles is in Ox planes and Oy planes institute stress FxAnd FySome resistance strain gages;It is capable of the stress of direct measurement loading machine operationally its scraper bowl, measurement accuracy is high, and the data obtained can be used for the research and development of loading machine.

Description

Loading shovel forces testing device and method of testing

【Technical field】

The present invention relates to loading shovel forces testing field, more particularly to a kind of loading shovel forces testing device and Method of testing.

【Background technology】

Loading machine is one of widely used machine in civil machinery.When loading machine works, load suffered by scraper bowl Research and development of the characteristic to loading machine are extremely important.Existing method of testing is respectively to choose several positions on swing arm and connecting rod first to carry Stress value is taken, the relation of stress and external applied load at selected location on component is determined, then passes through in test the stress value of test The external applied load size that anti-shoveling bucket is subject to.Due to not being direct measurement scraper bowl operationally scraper bowl stress, measurement accuracy can not be protected Card, and conclusion does not have versatility.

【The content of the invention】

It is an object of the invention to provide a kind of loading shovel forces testing device and method of testing, to solve above-mentioned skill Art problem.

To achieve these goals, the present invention is adopted the following technical scheme that:

Loading shovel forces testing device, including right radial force sensor mounting seat, right radial force sensor, right radial direction Force snesor installation sleeve, right lateral force sensors, left lateral force sensors, left radial force sensor installation sleeve, left radial direction Force snesor, left radial force sensor mounting seat, left lateral force sensors mounting seat, right lateral force sensors mounting seat and some Resistance strain gage;

The symmetrical configuration of the structure of left radial force sensor mounting seat and right radial force sensor mounting seat;Left radial load is passed The structure of sensor is identical with the structure of right radial force sensor;The structure of left lateral force sensors mounting seat is sensed with right side force The symmetrical configuration of device mounting seat;The structure of left lateral force sensors is identical with the structure of right lateral force sensors;Left radial load is passed Sensor installation sleeve is identical with the structure of right radial force sensor installation sleeve;

Left radial force sensor mounting seat, left radial force sensor, left lateral force sensors mounting seat, left side force sensing Device, the arrangement of left radial force sensor installation sleeve and right radial force sensor mounting seat, right radial force sensor, right side Arrangement to force snesor mounting seat, right lateral force sensors, right radial force sensor installation sleeve is symmetrical;

One end of loading machine connecting rod is hinged with rocking arm, and the other end of connecting rod is hinged scraper bowl by a rotating shaft, the rotating shaft Axial line is C;Swing arm is hinged by right radial force sensor and left radial force sensor with scraper bowl, right radial force sensor and a left side Radial force sensor is coaxial, and axial line is O;Axial line C is parallel with axial line O;Plane where axial line C and axial line O is Oy planes, are Ox by axial line O and perpendicular to the plane of Oy planes;

Connecting rod is two power bars, and the stress F for measuring connecting rod is provided with connecting rodCSensor;

It is flat in Ox planes and Oy that right radial force sensor and left radial force sensor are provided with the bearing pin being used to measure at O axles Face institute stress FxAnd FySome resistance strain gages;

Right lateral force sensors, left lateral force sensors, which are provided with, to be used to measure side force suffered on the bearing pin at O axles FaSome resistance strain gages.

The right of scraper bowl is set on right radial force sensor mounting seat, swing arm on the right with fixing right in the fraising of scraper bowl Radial force sensor installation sleeve, the left end closing of right radial force sensor installation sleeve;Right radial force sensor is divided into three Individual part, is referred to as carrying section, radial load sensing section and hold-down support;The carrying section of right radial force sensor is inserted into right footpath Into force snesor installation sleeve, the top of the carrying section of right radial force sensor is closed with right radial force sensor installation sleeve End plate leaves certain gap;The carrying section section of right radial force sensor for it is circular and with right radial force sensor installation sleeve Inwall be clearance fit relationship, right radial force sensor is fixed on right radial force sensor by hold-down support thereon and installed On seat.

On the left side of right radial force sensor installation sleeve, right lateral force sensors mounting seat, right lateral force sensors are set Two parts are divided into, side force sensing section, hold-down support is referred to as;Right lateral force sensors side force senses the top of section Contacted with the Closed end plate of right radial force sensor installation sleeve, right lateral force sensors are fixed on by hold-down support thereon In right lateral force sensors mounting seat.

In Oy planes, the radial load sensing section outer surface of right radial force sensor, bonding resistance strain gage R1、R2、R3、 R4, resistance strain gage R1、R4On the cross section C-C of right radial force sensor, resistance strain gage R2、R3Passed positioned at right radial load On the cross section D-D of sensor, it is arranged at intervals between cross section C-C and cross section D-D;Resistance strain gage R1~R4Constitute for surveying The y suffered by the right of scraper bowl is measured to power FyrElectric bridge.

In the side force sensing section outer surface of right lateral force sensors, it is bonded with and is born for measuring bearing pin on the right side of scraper bowl Side force FarResistance strain gage R5、R6

In Ox planes, the radial load sensing section outer surface of right radial force sensor, bonding resistance strain gage R7、R8、R9、 R10, resistance strain gage R7、R10On the cross section C-C of right radial force sensor, resistance strain gage R8、R9Positioned at right radial load On the cross section D-D of sensor, resistance strain gage R7~R10Constitute for measuring the x suffered by scraper bowl the right to power FxrElectric bridge.

Loading shovel forces testing method, based on loading shovel forces testing device, including:

By the stress F for being provided for measuring connecting rod on connecting rodCSensor measure connecting rod stress FCThe step of;

Pass through the resistance strain gage R set on right radial force sensor1~R4Suffered by the right of the bridge measurement scraper bowl of composition Y is to power FyrThe step of;

Pass through the resistance strain gage R set on right radial force sensor7~R10It is suffered on the right of the bridge measurement scraper bowl of composition X to power FxrThe step of;

Pass through the resistance strain gage R set in right lateral force sensors5、R6What bearing pin was born on the right of measurement scraper bowl is lateral Power FarThe step of;

Pass through the resistance strain gage R set on left radial force sensor11~R14Suffered by the bridge measurement scraper bowl left side of composition Y to power FylThe step of;

Pass through the resistance strain gage R set on left radial force sensor17~R20Suffered by the bridge measurement scraper bowl left side of composition X to power FxlThe step of;

Pass through the resistance strain gage R set in left lateral force sensors15、R16The side that measurement scraper bowl left side bearing pin is born To power FalThe step of;

Suffered side force F on bearing pin at O axlesa, in Ox planes and Oy planes institute stress FxAnd FyIt is specific as follows:

Fx=Fxl+Fxr

Fy=Fyl+Fyr

Fa=Fal+Far

Relative to prior art, the invention has the advantages that:A kind of loading shovel forces testing dress of the present invention Put and method of testing, be improved by the structure at the hinge to scraper bowl and swing arm, set right radial force sensor, right side to Force snesor, left lateral force sensors and left radial force sensor, and on right radial force sensor, right lateral force sensors, a left side Lateral force sensors and left radial force sensor, which are provided with, to be used to measure side force F suffered on the bearing pin at O axlesa, at O axles Bearing pin is in Ox planes and Oy planes institute stress FxAnd FySome resistance strain gages;Being capable of direct measurement scraper bowl operationally scraper bowl Stress, measurement accuracy is high, the firsthand information of load suffered by its scraper bowl when gained test result can be researched and developed as loading machine, to carrying High loading machine quality is significant.

【Brief description of the drawings】

Fig. 1 is the overall test conceptual scheme of loading shovel forces testing device of the present invention;

Fig. 2 is Fig. 1 A-A sectional views;

Fig. 3 is the enlarged drawing of right radial force sensor;

Fig. 4 is the enlarged drawing of right lateral force sensors;

Fig. 5 is y suffered by the right of scraper bowl to power FyrSensor bridge circuit diagram;

Fig. 6 is Fig. 1 B-B sectional views;

Fig. 7 is x suffered by the right of scraper bowl to power FxrSensor bridge circuit diagram.

In figure:1 it is scraper bowl, 2 is swing arm, 3 is connecting rod, 4 is rocking arm, 5 is bucket cylinder, 6 is right radial force sensor peace Dress seat, 7 be right radial force sensor, 8 be right radial force sensor installation sleeve, 9 be right lateral force sensors, 10 be left side to Force snesor, 11 be left radial force sensor installation sleeve, 12 be left radial force sensor, 13 be that left radial force sensor is installed Seat, 14 be left lateral force sensors mounting seat, 15 be right lateral force sensors mounting seat, R1~R20For resistance strain gage.

【Embodiment】

Refer to shown in Fig. 1 to Fig. 7, a kind of loading shovel forces testing device of the invention, including right radial load sensing Device mounting seat 6, right radial force sensor 7, right radial force sensor installation sleeve 8, right lateral force sensors 9, left side force are passed Sensor 10, left radial force sensor installation sleeve 11, left radial force sensor 12, left radial force sensor mounting seat 13, left side To force snesor mounting seat 14, right lateral force sensors mounting seat 15, resistance strain gage R1~R20

The symmetrical configuration of the structure of left radial force sensor mounting seat 13 and right radial force sensor mounting seat 6;Left radial direction The structure of force snesor 12 is identical with the structure of right radial force sensor 7;The structure of left lateral force sensors mounting seat 14 and the right side The symmetrical configuration of lateral force sensors mounting seat 15;The structure of the structure of left lateral force sensors 10 and right lateral force sensors 9 It is identical;Left radial force sensor installation sleeve 11 is identical with the structure of right radial force sensor installation sleeve 8.

Left radial force sensor mounting seat 13, left radial force sensor 12, left lateral force sensors mounting seat 14, left side to Force snesor 10, the arrangement of left radial force sensor installation sleeve 11 and right radial force sensor mounting seat 6, right radial load Sensor 7, right lateral force sensors mounting seat 15, right lateral force sensors 9, the arrangement of right radial force sensor installation sleeve 8 Mode is symmetrical.

Refer to shown in Fig. 1, one end of the connecting rod 3 of loading machine is hinged with Rocker arm 4, the other end of connecting rod 3 is turned by one Axle is hinged scraper bowl 1, and the axial line of the rotating shaft is C.Swing arm 2 passes through right radial force sensor 7 and left radial force sensor 12 and shovel Bucket 1 is hinged, and right radial force sensor 7 and left radial force sensor 12 are coaxial, and axial line is O;Axial line C and axial line O is put down OK.Plane is Oy planes where axial line C and axial line O, is Ox by axial line O and perpendicular to the plane of Oy planes.

It will be seen from figure 1 that during loading machine work, active force and scraper bowl 1 and swing arm 2 of the material loaded to scraper bowl 1 Hinge directed force FO, connecting rod 3 directed force FCMake a concerted effort F balance each other, the directed force F of the hinge of scraper bowl 1 and swing arm 2OCan be with It is decomposed into FxAnd Fy.Because connecting rod 3 is two power bars, sensor is set to measure the stress F of connecting rod 3 on connecting rod 3C;At O axles On hinge pin, sensor is set to measure FxAnd Fy;, can using the relation shown in Fig. 1 under the conditions of known to loading machine operating attitude To calculate total stress F of the scraper bowl 1 in x/y plane.

On the hinge pin at O axles, sensor is set to measure the side force F that bearing pin is borna, can by relevant mechanics principle Know, FaSuffered side force when being worked equal to scraper bowl.

Fx、Fy、FaMeasuring method it is as follows:

As shown in Fig. 2 being undergone technological transformation to scraper bowl 1 with the structure at the hinge of swing arm 2, set on the right of scraper bowl 1 With fixing right radial force sensor installation set in the fraising of scraper bowl 1 on right radial force sensor mounting seat 6, swing arm 2 on the right Cylinder 8, the left end closing of right radial force sensor installation sleeve 8;Right radial force sensor 7 is divided into three parts (see Fig. 3), point Also known as sense section and hold-down support for carrying section, radial load;During installation, the carrying section of right radial force sensor 7 is inserted into right footpath Into force snesor installation sleeve 8, the top of the carrying section of right radial force sensor 7 and right radial force sensor installation sleeve 8 Closed end plate leaves certain gap, to ensure that right radial force sensor 7 is not subject to side force, and right radial force sensor 7 is held It is that circular and with right radial force sensor installation sleeve 8 inwall is clearance fit relationship to carry section section, right radial force sensor 7 It is fixed on by hold-down support thereon in right radial force sensor mounting seat 6.

Right lateral force sensors mounting seat 15 is set on the left side of right radial force sensor installation sleeve 8, and right side force is passed Sensor 9 is divided into two parts (see Fig. 4), is referred to as side force sensing section, hold-down support;During installation, right side force sensing The top of the side force of device 9 sensing section is contacted with the Closed end plate of right radial force sensor installation sleeve 8, right lateral force sensors 9 It is fixed on by hold-down support thereon in right lateral force sensors mounting seat 15.

As shown in Fig. 2 in Oy planes, the radial load sensing section outer surface of right radial force sensor 7 is bonded resistance-strain Piece R1、R2、R3、R4, resistance strain gage R1、R4On the cross section C-C of right radial force sensor 7, resistance strain gage R2、R3Position In on the cross section D-D of right radial force sensor 7, it is arranged at intervals between cross section C-C and cross section D-D, spacing is l (Fig. 3), l>0, l concrete numerical value is by structure determination, and larger l is readily available stronger induced signal, but can reduce radial load biography simultaneously The safety coefficient of sensor, resistance strain gage R1~R4Group bridge mode such as Fig. 5, the output signal of electric bridge shown in Fig. 5 is proportional to scraper bowl Y suffered by the right is to power Fyr

In the side force sensing section outer surface of right lateral force sensors 9, bonding resistance strain gage R5、R6, utilize resistance-strain Piece R5、R6, the side force F that the right bearing pin is born can be measuredar

As shown in fig. 6, in Ox planes, the radial load sensing section outer surface of right radial force sensor 7 is bonded resistance-strain Piece R7、R8、R9、R10, resistance strain gage R7、R10On the cross section C-C of right radial force sensor 7, resistance strain gage R8、R9 On the cross section D-D of right radial force sensor 7, resistance strain gage R7~R10Group bridge mode such as Fig. 7, Fig. 7 electric bridges it is defeated Go out signal be proportional on the right of scraper bowl suffered by x to power Fxr

Y suffered by the scraper bowl left side is measured to power FylPrinciple with the right of measurement scraper bowl suffered by y to power FyrPrinciple phase Together;X suffered by the scraper bowl left side is measured to power FxlPrinciple with the right of measurement scraper bowl suffered by x to power FxrPrinciple it is identical.By with Lower two formulas calculate Fx、Fy

Fx=Fxl+Fxr

Fy=Fyl+Fyr

The side force F that measurement scraper bowl left side bearing pin is bornalPrinciple with measurement scraper bowl on the right of bearing pin born it is lateral Power FalPrinciple it is identical.By Fal、FarThe side force F suffered by scraper bowl can be obtained after synthesisa

Claims (2)

1. loading shovel forces testing device, it is characterised in that including right radial force sensor mounting seat (6), right radial load Sensor (7), right radial force sensor installation sleeve (8), right lateral force sensors (9), left lateral force sensors (10), Zuo Jing Passed to force snesor installation sleeve (11), left radial force sensor (12), left radial force sensor mounting seat (13), left side force Sensor mounting seat (14), right lateral force sensors mounting seat (15) and some resistance strain gages;
The structure of left radial force sensor mounting seat (13) and the symmetrical configuration of right radial force sensor mounting seat (6);Left radial direction The structure of force snesor (12) is identical with the structure of right radial force sensor (7);The knot of left lateral force sensors mounting seat (14) Structure and the symmetrical configuration of right lateral force sensors mounting seat (15);The structure of left lateral force sensors (10) is sensed with right side force The structure of device (9) is identical;The structure phase of left radial force sensor installation sleeve (11) and right radial force sensor installation sleeve (8) Together;
Left radial force sensor mounting seat (13), left radial force sensor (12), left lateral force sensors mounting seat (14), left side To force snesor (10), the arrangement of left radial force sensor installation sleeve (11) and right radial force sensor mounting seat (6), Right radial force sensor (7), right lateral force sensors mounting seat (15), right lateral force sensors (9), right radial force sensor peace The arrangement of sleeved (8) is symmetrical;
One end of loading machine connecting rod (3) is hinged with rocking arm (4), and the other end of connecting rod (3) is hinged scraper bowl (1) by a rotating shaft, The axial line of the rotating shaft is C;Swing arm (2) is cut with scissors by right radial force sensor (7) and left radial force sensor (12) with scraper bowl (1) Connect, right radial force sensor (7) and left radial force sensor (12) coaxially, and axial line be O;Axial line C and axial line O is put down OK;Plane is Oy planes where axial line C and axial line O, is Ox by axial line O and perpendicular to the plane of Oy planes;
Connecting rod (3) is two power bars, and the stress F for measuring connecting rod (3) is provided with connecting rod (3)CSensor;
Right radial force sensor (7) and left radial force sensor (12) be provided with the bearing pin that is used to measure at O axles in Ox planes and Oy planes institute stress FxAnd FySome resistance strain gages;These resistance strain gages are entirely located in the side of loading arm, in dress Between carrier aircraft swing arm and radial force sensor mounting seat, the diameter parallel of direction and radial force sensor is pasted;
Right lateral force sensors (9), left lateral force sensors (10), which are provided with, to be used to measure lateral suffered by the bearing pin at O axles Power FaSome resistance strain gages;
The right of scraper bowl (1) sets the fraising with scraper bowl (1) on right radial force sensor mounting seat (6), swing arm (2) on the right The interior right radial force sensor installation sleeve (8) of fixation, the left end closing of right radial force sensor installation sleeve (8);Right radial load Sensor (7) is divided into three parts, is referred to as carrying section, radial load sensing section and hold-down support;Right radial force sensor (7) carrying section is inserted into right radial force sensor installation sleeve (8), the top of the carrying section of right radial force sensor (7) Certain gap is left with right radial force sensor installation sleeve (8) Closed end plate;The carrying section of right radial force sensor (7) is disconnected Face is that circular and with right radial force sensor installation sleeve (8) inwall is clearance fit relationship, and right radial force sensor (7) is led to The hold-down support crossed thereon is fixed on right radial force sensor mounting seat (6);
Right lateral force sensors mounting seat (15) is set on the left side of right radial force sensor installation sleeve (8), and right side force is passed Sensor (9) is divided into two parts, is referred to as side force sensing section, hold-down support;Right lateral force sensors (9) side force sense The top of section is answered to be contacted with the Closed end plate of right radial force sensor installation sleeve (8), right lateral force sensors (9) are by thereon Hold-down support be fixed on right lateral force sensors mounting seat (15);
In Oy planes, the radial load sensing section outer surface of right radial force sensor (7), bonding resistance strain gage R1、R2、R3、R4, Resistance strain gage R1、R4On the cross section C-C of right radial force sensor (7), resistance strain gage R2、R3Positioned at right radial load On the cross section D-D of sensor (7), it is arranged at intervals between cross section C-C and cross section D-D;Resistance strain gage R1~R4Composition is used Y suffered by the right of the measurement scraper bowl is to power FyrElectric bridge;
In the side force sensing section outer surface of right lateral force sensors (9), it is bonded with and is born for measuring bearing pin on the right side of scraper bowl Side force FarResistance strain gage R5、R6
In Ox planes, the radial load sensing section outer surface of right radial force sensor (7), bonding resistance strain gage R7、R8、R9、 R10, resistance strain gage R7、R10On the cross section C-C of right radial force sensor (7), resistance strain gage R8、R9Positioned at right footpath To on the cross section D-D of force snesor (7), resistance strain gage R7~R10Constitute for measuring the x suffered by scraper bowl the right to power Fxr Electric bridge.
2. loading shovel forces testing method, it is characterised in that based on the loading shovel forces testing described in claim 1 Device, including:
By the stress F for being provided for measuring connecting rod (3) on connecting rod (3)CSensor measurement connecting rod (3) stress FCThe step of;
Pass through the resistance strain gage R set on right radial force sensor (7)1~R4Y suffered by the right of the bridge measurement scraper bowl of composition To power FyrThe step of;
Pass through the resistance strain gage R set on right radial force sensor (7)7~R10Suffered by the right of the bridge measurement scraper bowl of composition X is to power FxrThe step of;
Pass through the resistance strain gage R set in right lateral force sensors (9)5、R6The side force that bearing pin is born on the right of measurement scraper bowl FarThe step of;
Pass through the resistance strain gage R set on left radial force sensor (12)11~R14Suffered by the bridge measurement scraper bowl left side of composition Y to power FylThe step of;
Pass through the resistance strain gage R set on left radial force sensor (12)17~R20Suffered by the bridge measurement scraper bowl left side of composition X to power FxlThe step of;
Pass through the resistance strain gage R set in left lateral force sensors (10)15、R16It is lateral that measurement scraper bowl left side bearing pin is born Power FalThe step of;
Suffered side force F on bearing pin at O axlesa, in Ox planes and Oy planes institute stress FxAnd FyIt is specific as follows:
Fx=Fxl+Fxr
Fy=Fyl+Fyr
Fa=Fal+Far
CN201510439006.3A 2015-07-23 2015-07-23 Loading shovel forces testing device and method of testing CN105004458B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510439006.3A CN105004458B (en) 2015-07-23 2015-07-23 Loading shovel forces testing device and method of testing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510439006.3A CN105004458B (en) 2015-07-23 2015-07-23 Loading shovel forces testing device and method of testing

Publications (2)

Publication Number Publication Date
CN105004458A CN105004458A (en) 2015-10-28
CN105004458B true CN105004458B (en) 2017-08-15

Family

ID=54377217

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510439006.3A CN105004458B (en) 2015-07-23 2015-07-23 Loading shovel forces testing device and method of testing

Country Status (1)

Country Link
CN (1) CN105004458B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105369846B (en) * 2015-12-06 2018-04-10 吉林大学 A kind of working device of loader load test system
CN105588669A (en) * 2015-12-11 2016-05-18 广西柳工机械股份有限公司 Shaft pin-type three-way force-measuring sensor
CN105841871A (en) * 2016-03-21 2016-08-10 长安大学 Loader bucket lateral force testing device and testing method
CN105973510B (en) * 2016-07-13 2018-09-18 长安大学 Loading shovel forces testing method
CN107356445B (en) * 2017-06-22 2019-05-07 长安大学 Method for sorting, loading method and device are composed in working device of loader fatigue test
CN107356446B (en) * 2017-07-07 2020-06-12 徐工集团工程机械有限公司 Loading spectrum testing system for loader working device, working device and loader

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2846848B2 (en) * 1996-02-07 1999-01-13 株式会社小松製作所 Earthwork detection device
CN2450647Y (en) * 2000-11-09 2001-09-26 张家港保税区中诚国际工贸有限公司 Dynamic shaft pin type force cell
CN2729666Y (en) * 2004-03-25 2005-09-28 石家庄开发区益通科技有限公司 Mechanical weighing mechanism of load machine dynamic electronic balance
CN100456001C (en) * 2004-09-15 2009-01-28 南宁铁路局科学技术研究所 Electronic weighing system for loading machine and method for metering loading capacity
CN103063341B (en) * 2012-12-19 2016-01-20 三一重工股份有限公司 A kind of detect pivot pin bear the method for radial force

Also Published As

Publication number Publication date
CN105004458A (en) 2015-10-28

Similar Documents

Publication Publication Date Title
US3695096A (en) Strain detecting load cell
US20100000336A1 (en) Device for measuring a load at the end of a rope wrapped over a rod
Entacher et al. Cutter force measurement on tunnel boring machines–System design
Rizal et al. Development and testing of an integrated rotating dynamometer on tool holder for milling process
CN100460841C (en) Differential and temperature compensating type on-line testing method and system for bridge cable force
Askarinejad et al. Assessing the effects of track input on the response of insulated rail joints using field experiments
Korkut A dynamometer design and its construction for milling operation
CN102095574B (en) Joint surface dynamic characteristic parameter testing device of rolling guide rail and testing method thereof
CN103217278A (en) Device and method for testing normal static characteristics of junction surface of high-strength bolt
CN103217349A (en) High-speed motorized spindle dynamic and static rigidity testing device and high-speed motorized spindle dynamic and static rigidity testing method based on three-way electromagnetic force loading
CN103983516B (en) Method for measuring and calculating poisson ratio of soil body
EP2938984B1 (en) Proximity and strain sensing
CN104713740B (en) A kind of load carrying capacity of bridge rapid method for assessment tested based on traveling load
CN101972948B (en) Test device for thermal error of machine tool spindle under simulated work load condition
CN103499637B (en) A kind of Fully-digital high-precision three-dimensional flux leakage signal acquisition device
KR101201936B1 (en) Measuring rod and penetrometer using the same
CN101929892A (en) Online test system of friction stir welding
CN103759954B (en) A kind of method that tire drag is accurately tested and device
CA2739222C (en) A load cell for a downhole load measuring tool
CN102672538B (en) Calibrating device and calibrating method by adopting resistance strain type turning dynamometer
CN103645243A (en) Electromagnetic nondestructive detection system of power transmission line
Gobbi et al. A new six-axis load cell. Part II: Error analysis, construction and experimental assessment of performances
CN202351136U (en) Bending test deflection loading device
CN102207366B (en) Strain transducer structure and mounting methods
Liang et al. Development of a touch probe based on five-dimensional force/torque transducer for coordinate measuring machine (CMM)

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170815

Termination date: 20180723