CN103134668B - Pulley rotation device for detecting flexibility and utilize it to carry out the method detected - Google Patents
Pulley rotation device for detecting flexibility and utilize it to carry out the method detected Download PDFInfo
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- CN103134668B CN103134668B CN201110379884.2A CN201110379884A CN103134668B CN 103134668 B CN103134668 B CN 103134668B CN 201110379884 A CN201110379884 A CN 201110379884A CN 103134668 B CN103134668 B CN 103134668B
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Abstract
The invention discloses a kind of pulley rotation device for detecting flexibility and utilize this pick-up unit to detect the method for pulley rotation dirigibility.This device comprises base, power wheel, rope band, pulling force detector and actuating unit, and power wheel is flexibly connected with base by the first rotating shaft; Rope band is sheathed on tested pulley and power wheel; Pulling force detector is fixedly connected with rope band, the value of thrust that pulling force detector bears respectively on the rope band detected on the rope band moved towards the direction close to tested pulley and move upward towards the side away from tested pulley; Actuating unit and power wheel or tested pulley one of them be connected, it is for driving coupled power wheel or tested pulley rotation, and drives not coupled tested pulley or power wheel to rotate by the power wheel that rotates or tested pulley and rope band.The invention solves prior art, to there is the dirigibility Detection accuracy of pulley low, and the different pulley of dirigibility is difficult to the technical matters quantitatively carrying out distinguishing.
Description
Technical field
The present invention relates to field of mechanical technique, be specifically related to a kind of pulley rotation device for detecting flexibility and utilize this pulley rotation device for detecting flexibility to detect the method for pulley rotation dirigibility.
Background technology
Pulley is that the rotation dirigibility of pulley directly affects the weight of the article that crawler crane can lift by crane for lifting by crane and the critical component of bearing article on crawler crane.
Pulley uses with the form of pulley blocks as shown in Figure 1 usually, when the rotation dirigibility (or claiming rotation) of pulley refers to that the rope band (being generally wire rope) be wound on pulley lifts by crane article, pulley overcomes the deadlock resistance of the rope band be wound on pulley and the ability of pulley blocks resistance.The rotation dirigibility missionary society of pulley causes wearing and tearing between pulley and rope band large, and then causes pulley and the problem such as the weight of the rope band life-span is low, the lifting capacity of suspension hook and suspension hook can lift by crane article is low.
Along with the change of pulley operating mode and the change of pulley inner bearing model, the assembling situation of bearing and processing and manufacturing situation difference can cause the rotation dirigibility of each pulley different.During assembling pulley, in order to prevent the pulley rotation dirigibility of assembling not up to standard, at present, general employing rotary pulley manually, the method being carried out the complexity of perception pulley rotation by feel judges the rotation dirigibility of pulley, manually judges that the method for the rotation dirigibility of pulley at least exists following problem by feel in prior art:
When manually detecting the rotation dirigibility of pulley by feel, because the feel individual difference of people is larger, for rotation dirigibility some pulleys relatively, the result that the different people of detection experience detects is often different, the result that even same people detects when difference also may there are differences, and causes the dirigibility Detection accuracy of pulley lower; Simultaneously, the rotation dirigibility of pulley is manually detected by feel, only can show which pulley dirigibility is good qualitatively, which very flexible, the dirigibility of pulley cannot be carried out quantitative differentiation, run into when there is the use occasion of multiple class to the rotation requirement on flexibility of pulley, the selection difficulty of pulley is larger.
Summary of the invention
The object of the invention is to propose a kind of pulley rotation device for detecting flexibility and a kind of pulley rotation dirigibility detection method, solving prior art, to there is the dirigibility Detection accuracy of pulley low, and the different pulley of dirigibility is difficult to the technical matters quantitatively carrying out distinguishing.
For achieving the above object, the invention provides following technical scheme:
This pulley rotation device for detecting flexibility, comprises base, power wheel, rope band, pulling force detector and actuating unit, wherein:
Described power wheel is flexibly connected with described base by the first rotating shaft, and it can around described first rotating shaft relative to described base rotation;
Described rope band is sheathed on tested pulley and described power wheel;
Described pulling force detector is fixedly connected with described rope band, the value of thrust that described pulling force detector bears respectively on the described rope band detected on the described rope band moved towards the direction close to described tested pulley and move upward towards the side away from described tested pulley;
Described actuating unit and described power wheel or described tested pulley one of them be connected, it is for driving coupled described power wheel or described tested pulley rotation, and drives not coupled described tested pulley or described power wheel to rotate by the described power wheel that rotates or described tested pulley and described rope band.
Preferably, described tested pulley is flexibly connected with described base by the second rotating shaft, and it can around described second rotating shaft relative to described base rotation.
Preferably, described pulley rotation device for detecting flexibility also comprises rope band strainer, wherein:
The sliding tray that described rope band strainer comprises hydraulic jack, support and is opened on base, described hydraulic jack is fixedly arranged on described base, and the piston rod of described hydraulic jack abuts against along its axial direction and described support, described second rotating shaft is flexibly connected with described support and can around its axial line relative to described holder pivots, described support can with the piston rod of described hydraulic jack towards away from or direction close to described power wheel slide in described sliding tray, or
Described rope band strainer comprises and to abut against with described rope band and position can along the stretching pulley of the perpendicular direction movement of described rope band, and described stretching pulley is flexibly connected with described base by the 3rd rotating shaft and it can around described 3rd rotating shaft relative to described base rotation.
Preferably, described power wheel and described tested pulley are all positioned within described rope band, and the inner side of described rope band is with the outside surface of described power wheel and the outside surface of described tested pulley contact respectively.
Preferably, the pivot center of described power wheel and described tested pulley all parallels with surface level, and described pulling force detector comprises first sensor and the second sensor, wherein:
Described first sensor and described second sensor are arranged at the diverse location place on described rope band respectively;
Described first sensor and described second sensor one of them when moving on the described rope band between described power wheel top and described tested pulley top with described rope band, described first sensor and described second sensor wherein another to move to bottom described power wheel with described rope band and bottom described tested pulley between described rope band on;
Described first sensor and described second sensor to be respectively used to detect bottom value of thrust and described power wheel that the described rope band between described power wheel top and described tested pulley top bears and bottom described tested pulley between the value of thrust that bears of described rope band.
Preferably, described rope band is wire rope, and described first sensor and described second sensor are lineoutofservice signal pull sensor.
Preferably, described pulley rotation device for detecting flexibility also comprises the data handling component be electrically connected with described pulling force detector, wherein:
The value of thrust that described data handling component is measured for receiving described pulling force detector, and one of them ratio of the value of thrust born on difference between the value of thrust calculating on the described rope band that move towards the direction close to described tested pulley and the described rope band that moves upward towards the side away from described tested pulley bears respectively and the described rope band that moves towards the direction close to described tested pulley or on the described rope band that moves upward away from the side of described tested pulley of court.
Preferably, described actuating unit comprises motor and gear train, the main shaft of described motor is by described gear train for the rotation of described power wheel provides power, and described gear train is one or more the combination wherein of gear drive, rope band gear train or chain-drive mechanism;
Or described actuating unit is that the axial line of the rotating shaft of main shaft and described power wheel coincides, and the motor that main shaft is fixedly connected with described first rotating shaft.
Preferably, described first rotating shaft is fixedly connected with described power wheel, or described first rotating shaft and described power wheel are integral type structure;
And/or, the follower gear that described gear train comprises driving gear and is meshed with described driving gear;
The main shaft of described motor is fixedly connected with described driving gear and coincides with the axial line of described driving gear;
Described first rotating shaft is fixedly connected with described follower gear and coincides with the axial line of follower gear.
Utilize this pulley rotation device for detecting flexibility to detect the method for pulley rotation dirigibility, comprise the following steps:
Tested pulley is socketed rope band, and drives described tested pulley to rotate around described tested pulley axial line by described rope band;
The value of thrust that the described rope band detected respectively in the process of rotating around its axial line at described tested pulley on the described rope band moved towards the direction close to described tested pulley and move upward towards the side away from described tested pulley bears respectively;
One of them ratio of the value of thrust born respectively on the difference of the value of thrust that the described rope band calculated on the described rope band that moves towards the direction close to described tested pulley and move upward towards the side away from described tested pulley bears respectively and the described rope band moved towards the direction close to described tested pulley or on the described rope band that moves upward away from the side of described tested pulley of court.
Arbitrary technical scheme in above-mentioned many technical schemes all can produce following technique effect:
Due in the embodiment of the present invention, the value of thrust that the rope band detected respectively in the process can rotated around its axial line at the tested pulley being socketed with rope band (such as wire rope) on the rope band moved towards the direction close to tested pulley and move upward towards the side away from tested pulley bears respectively, and the difference between the value of thrust that the rope band moved upward on the rope band moved towards the direction close to tested pulley and towards the side away from tested pulley bears respectively is the summation of the value of the resistance being wound in deadlock resistance that rope band on pulley applies pulley and pulley blocks in theory, so the rotation dirigibility of the less then pulley of this difference is then better, and then just can by the mode of the above-mentioned difference size of contrast or contrast on above-mentioned difference and the rope band moved towards the direction close to tested pulley or value of thrust that rope band that court moves upward away from the side of tested pulley bears respectively one of them ratio size mode and learn the quality of the rotation dirigibility of pulley,
Because value of thrust is detected by pulling force detector and obtains in the present invention, above-mentioned difference or ratio also by instruments such as counters and even manually can calculate simultaneously, manually judge compared with the method for the rotation dirigibility of pulley by feel with prior art, the numerical value that technical scheme provided by the present invention obtains is more accurate, so the Detection accuracy of the rotation dirigibility of pulley is higher, simultaneously, the technical scheme provided due to the embodiment of the present invention can obtain numerical value more accurately, so pulley corresponding for different numerical range can be carried out quantitative differentiation, run into when the use occasion of multiple class is existed to the rotation requirement on flexibility of pulley, the selection difficulty of pulley is easier, so solve prior art, to there is the dirigibility Detection accuracy of pulley low, and the different pulley of dirigibility is difficult to the technical matters quantitatively carrying out distinguishing.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
The schematic diagram of the pulley blocks at the pulley place that Fig. 1 provides for embodiment of the present invention annexation in actual use and between rope band;
The schematic perspective view of the annexation between each parts of pulley rotation device for detecting flexibility that the preferred implementation that Fig. 2 is the embodiment of the present invention provides;
The floor map of the annexation between each parts of pulley rotation device for detecting flexibility that the preferred implementation that Fig. 3 is the embodiment of the present invention provides;
The another floor map of the annexation between each parts of pulley rotation device for detecting flexibility that the preferred implementation that Fig. 4 is the embodiment of the present invention provides;
The another schematic perspective view of the annexation between each parts of pulley rotation device for detecting flexibility that the preferred implementation that Fig. 5 is the embodiment of the present invention provides;
One floor map of the annexation between each parts of pulley rotation device for detecting flexibility that the another kind of embodiment of Fig. 6 embodiment of the present invention provides;
The schematic flow sheet of the pulley rotation dirigibility detection method that Fig. 7 provides for the embodiment of the present invention.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Embodiments provide a kind of Detection accuracy better, and can will rotate pulley rotation device for detecting flexibility that the different pulley of dirigibility quantitatively carry out distinguishing and the pulley rotation dirigibility detection method that this pulley rotation device for detecting flexibility is applied.
As shown in Figure 2, Figure 3 and Figure 4, the pulley rotation device for detecting flexibility that the embodiment of the present invention provides, comprises base 1, power wheel 2, rope band 3, pulling force detector 4 and actuating unit 5, wherein:
Power wheel 2 is flexibly connected with base 1 by the first rotating shaft 21, and it can rotate relative to base 1 around the first rotating shaft 21;
Rope band 3 is sheathed on tested pulley 6 with on power wheel 2;
Pulling force detector 4 is fixedly connected with rope band 3, the value of thrust of pulling force detector 4 for the rope band 3 that to detect on the rope band 3 that moves towards the direction close to tested pulley 6 and move upward towards the side away from tested pulley 6 bears respectively;
Actuating unit 5 and power wheel 2 or tested pulley 6 one of them be connected, it rotates for driving coupled power wheel 2 or tested pulley 6, and drives not coupled tested pulley 6 or power wheel 2 to rotate by the power wheel 2 that rotates or tested pulley 6 and rope band 3.
Due in the embodiment of the present invention, the value of thrust that the rope band 3 detected respectively in the process can rotated around its axial line at the tested pulley 6 being socketed with rope band 3 (such as wire rope) as shown in Figure 2 on the rope band 3 moved towards the direction close to tested pulley 6 and move upward towards the side away from tested pulley 6 bears respectively, and the value of Sn-Sn-1 in the summation of the value of the resistance of the deadlock resistance that to be the rope band 3 pairs of pulleys be wound in theory on pulley apply of the difference between the value of thrust that the rope band 3 moved upward on the rope band 3 moved towards the direction close to tested pulley 6 and towards the side away from tested pulley 6 bears respectively and pulley blocks and Fig. 1, so the rotation dirigibility of the less then pulley of this difference is then better, and then just can by the mode of the size of the above-mentioned difference of contrast or contrast on above-mentioned difference and the rope band 3 moved towards the direction close to tested pulley 6 or value of thrust that rope band 3 that court moves upward away from the side of tested pulley 6 bears respectively one of them ratio size mode and learn the quality of the rotation dirigibility of pulley,
Because value of thrust is detected by pulling force detector 4 and obtains in the present invention, above-mentioned difference or ratio also by instruments such as counters and even manually can calculate simultaneously, manually judge compared with the method for the rotation dirigibility of pulley by feel with prior art, the numerical value that technical scheme provided by the present invention obtains is more accurate, so the Detection accuracy of the rotation dirigibility of pulley is higher, simultaneously, the technical scheme provided due to the embodiment of the present invention can obtain numerical value more accurately, so pulley corresponding for different numerical range can be carried out quantitative differentiation, run into when the use occasion of multiple class is existed to the rotation requirement on flexibility of pulley, the selection difficulty of pulley is easier, so solve prior art, to there is the dirigibility Detection accuracy of pulley low, and the different pulley of dirigibility is difficult to the technical matters quantitatively carrying out distinguishing.
As shown in Figure 2 and Figure 5, in the present embodiment, tested pulley 6 is flexibly connected with base 1 by the second rotating shaft 61, and it can rotate relative to base 1 around the second rotating shaft 61.
When measuring the rotation dirigibility of tested pulley 6, can detect tested pulley 6 being installed on before use occasion (on the pulley yoke in the pulley blocks of such as suspension hook), thus select to rotate dirigibility and meet the requirements of pulley and install.Second rotating shaft 61 preferably removably connects with being flexibly connected between base 1, like this, pulley can be disassembled from base 1 after having detected tested pulley 6, changes other tested pulleys 6 and proceeds to detect.
Certainly, if when tested pulley 6 has been installed on use occasion, by tested pulley 6 from use occasion disassemble bother very much time, as long as also can not dismantle tested pulley 6 is sheathed on power wheel 2 by the rope band 3 be enclosed within tested pulley 6, or the rope band 3 on tested pulley 6 being loosened or removes, being also sheathed on the detection that can to realize on tested pulley 6 tested pulley 6 by being placed on rope band 3 on power wheel 2.
As shown in Figure 2 and Figure 4, the present embodiment middle pulley rotates device for detecting flexibility and also comprises rope band strainer 7, wherein:
The sliding tray 73 that rope band strainer 7 comprises hydraulic jack 71, support 72 as shown in Figure 2 and is opened on base 1, hydraulic jack is fixedly arranged on base 1 and the piston rod of hydraulic jack 71 abuts against along its axial direction and support 72, second rotating shaft 61 is flexibly connected with support 72 and can rotates relative to support 72 around its axial line, support 72 can with piston rod towards away from or direction close to power wheel 2 slide in sliding tray 73.
Hydraulic jack 71 is provided with the first hydraulic fluid port and the second hydraulic fluid port (hydraulic fluid port is that conventional structure is not shown), when the first hydraulic fluid port oil-feed, when second hydraulic fluid port is fuel-displaced, piston rod can be promoted move forward along the axial direction of piston rod, otherwise, first hydraulic fluid port is fuel-displaced, during the second hydraulic fluid port oil-feed, piston rod can be promoted retreat along the axial direction of piston rod backward, because the piston rod of hydraulic jack in the present embodiment 71 abuts against along its axial direction and support 72, so can by controlling respectively to the first hydraulic fluid port and the second hydraulic fluid port oil-feed, the moving direction of fuel-displaced method control piston bar and displacement, and then the tensioning degree of the spacing controlled between power wheel 2 and tested pulley 6 and rope band 3.In the present embodiment, hydraulic jack 71 is fixed on base 1 by oil cylinder fixed mount 74.
The effect of rope band strainer 7 is: on the one hand, rope band strainer 7 is by when being sheathed on tested pulley 6 with rope band 3 tensioning on power wheel 2, rope band 3 is larger with the friction force between power wheel 2 with tested pulley 6, now, the power wheel 2 be connected with actuating unit 5 or tested pulley 6 can drive the tested pulley 6 that is not connected with actuating unit 5 or power wheel 2 to rotate by rope band 3 more fast and effectively; On the other hand, when using pulley lifting article, the article of Different Weight are different to the load that pulley applies, can by controlling the mode of the size of the tensile force that rope band strainer 7 pairs of rope bands 3 apply in the present embodiment, the article different load that tested pulley 6 is applied of simulation Different Weight, thus rotation dirigibility when can detect that different loads born by tested pulley 6.
The two parts in the present embodiment, the second rotating shaft 61 being positioned at contrary both sides, tested pulley 6 position abut against from different two piston rods respectively, and two different piston rods are symmetricly set in the both sides of tested pulley 6.Two different piston rods, two piston rods that can be the respective piston rod of two different hydraulic jacks 71 also can be on same hydraulic jack 71.
Certainly, above-mentioned rope band strainer 7 also can control the tensioning degree of spacing between power wheel 2 and tested pulley 6 and rope band 3 by the mode changing power wheel 2 and the first rotating shaft 21 position.
As the another kind of embodiment of the strainer of rope band as shown in Figure 47 that the present embodiment provides, in the present embodiment, rope band strainer 7 also can be comprise abutting against with rope band 3 and position can along the stretching pulley of the perpendicular direction movement of rope band 3, and stretching pulley to be flexibly connected with base 1 by the 3rd rotating shaft and it can rotate relative to base 1 around the 3rd rotating shaft.
What can adjust by regulating the distance between the 3rd rotating shaft and base 1 along the perpendicular direction of rope band 3 that stretching pulley applies rope band 3 compresses power, and then the tensioning degree of control rope band 3.
In the present embodiment as shown in Figure 4 the embodiment of rope band strainer 7 can also be above disclosed embodiment combination or also can for other embodiments outside above embodiment, such as rope band strainer 7 also can realize the tensioning to rope band 3 by the mode changing rope band 3 length.
Certainly, the present embodiment pulley rotation device for detecting flexibility also can not arrange rope band strainer 7 as shown in Figure 4, now, the rope band 3 that many overall circumferences are different can be prepared, select the rope band 3 of different length as required, and then rope band 3 can be regulated the size of the load that tested pulley 6 applies by the mode changing the different rope band 3 of length.
As shown in Fig. 3, Fig. 4 and Fig. 5, in the present embodiment, power wheel 2 and tested pulley 6 are all positioned within rope band 3, and the inner side of rope band 3 contacts with the outside surface of power wheel 2 and the outside surface of tested pulley 6 respectively.
This structure is the preferred implementation of the embodiment of the present invention, the operation be sheathed on power wheel 2 and tested pulley 6 by rope band 3 in this structure is more convenient, and the rope band 3 moved towards the direction close to tested pulley 6 can not interact with both the rope bands 3 moved upward towards the side away from tested pulley 6.
Certainly, in the present embodiment, rope band 3 also can cross winding be on power wheel 2 and tested pulley 6 as shown in Figure 6, and now, the inner side of part rope band 3 contacts with power wheel 2, and the outside of part rope band 3 contacts with power wheel 2.
As shown in Figure 3, in the present embodiment, the pivot center of power wheel 2 and tested pulley 6 all parallels with surface level, and pulling force detector 4 comprises first sensor 41 and the second sensor 42, wherein:
First sensor 41 and the second sensor 42 are arranged at the diverse location place on rope band 3 respectively;
First sensor 41 and the second sensor 42 one of them when moving on the rope band 3 between power wheel 2 top and tested pulley 6 top with rope band 3, first sensor 41 and the second sensor 42 wherein another to move to bottom power wheel 2 with rope band 3 and bottom tested pulley 6 between rope band 3 on;
First sensor 41 and the second sensor 42 to be respectively used to detect bottom value of thrust and power wheel 2 that the rope band 3 between power wheel 2 top and tested pulley 6 top bears and bottom tested pulley 6 between the value of thrust that bears of rope band 3.
Rope band 3 between bottom rope band 3 between power wheel 2 top and tested pulley 6 top and power wheel 2 and bottom tested pulley 6 is when one of them moves towards the direction close to tested pulley 6 respectively, wherein another meeting or move upward towards away from the side of tested pulley 6, so required value of thrust can be detected more accurately, simultaneously, not only space is more sufficient in the surrounding of the rope band 3 of the above-mentioned installation site of rope band 3, can be more convenient when installation first sensor 41 and the second sensor 42.
In the present embodiment, rope band 3 is wire rope, and first sensor 41 and the second sensor 42 are preferably lineoutofservice signal pull sensor.
Cord strength is suitable for greatly being applied to the larger article of hoisting weight.Lineoutofservice signal pull sensor is a kind of sensor being exclusively used in pulling force suffered by detection wire rope, has the advantage that precision is high.Certainly, in the present embodiment, first sensor 41 and the second sensor 42 also can be other sensors outside lineoutofservice signal pull sensor, such as resistance strain type sensor.
As shown in Figure 3, the present embodiment middle pulley rotates device for detecting flexibility and also comprises the data handling component 8 be electrically connected with pulling force detector 4, wherein:
The value of thrust that data handling component 8 is measured for receiving pulling force detector 4, and the value of thrust born on the value of Sn-Sn-1 and the rope band 3 that moves towards the direction close to tested pulley 6 or on the rope band 3 that moves upward away from the side of tested pulley 6 of court in difference between the value of thrust calculating on the rope band 3 that move towards the direction close to tested pulley 6 and the rope band 3 that moves upward towards the side away from tested pulley 6 bears and Fig. 1 one of them ratio and Fig. 1 in the value of (Sn-Sn-1)/Sn or the value of (Sn-Sn-1)/Sn-1.
As shown in Figure 3, the electrical connection between data handling component 8 and pulling force detector 4 can be wired electrical connection, also can dedicated radio link, as long as the data that pulling force detector 4 detects can be sent to data handling component 8.Dotted line in Fig. 3 represents that pulling force detector 4 is sent to the wireless data signal carrying the value of thrust that it detects of data handling component 8.
Can be drawn by above-mentioned calculating and can reflect that tested pulley 6 rotates the ratio of dirigibility quality, ratio is less, represents that tested pulley 6 rotates dirigibility better.
The value of (Sn-Sn-1)/Sn in ratio between the value of Sn-Sn-1 in above-mentioned difference and Fig. 1 and the value of thrust born on the rope band 3 moved upward away from the side of tested pulley 6 and Fig. 1 is preferably calculated in the present embodiment.
Because the value of thrust born on the rope band 3 moved upward away from the side of tested pulley 6 can not only include the summation of resistance that tested pulley 6 pairs of rope bands 3 apply and the resistance that power wheel 2 pairs of rope bands 3 apply, but also include the deadlock resistance of rope band 3, so the rotation dirigibility of tested pulley 6 when more accurately, comprehensively can reflect that rope band 3 drives tested pulley 6 to rotate.
As shown in Figure 2, the present embodiment medium power mechanism 5 comprises motor 51 and gear train 52, the main shaft of motor 51 is by gear train 52 for the rotation of power wheel 2 provides power, and gear train 52 is gear drive, rope band gear train or chain-drive mechanism a kind of, two or more combination wherein.
Gear train 52 1 aspect can play a protective role to motor 51, the rotating speed of motor 51 main shaft can be converted to the desired speed of actual needs on the other hand in transmission process.
Certainly, in the present embodiment, actuating unit 5 also can coincide for the axial line of the first rotating shaft 21 of main shaft and power wheel 2 as shown in Figure 2, and the motor that main shaft is fixedly connected with the first rotating shaft 21 of power wheel 2.
In the present embodiment, the first rotating shaft 21 is fixedly connected with power wheel 2, or the first rotating shaft 21 is integral type structure with power wheel 2.When first rotating shaft 21 is fixedly connected with power wheel 2 or the first rotating shaft 21 is integral type structure with power wheel 2, can be more easy when actuating unit 5 drives rope band 3 and tested pulley 6 to move by power wheel 2, simultaneously, the installation of the first rotating shaft 21 and power wheel 2 can synchronously be carried out, also more convenient during installation.
Although power wheel 2 pairs of rope bands 3 can apply friction force in actual testing process, when no matter detecting which tested pulley 6, the friction force that power wheel 2 pairs of rope bands 3 apply is all consistent, so still can detect the rotation dirigibility of different tested pulley 6.
As shown in Figure 2, the follower gear 522 that in the present embodiment, gear train 52 comprises driving gear 521 and is meshed with driving gear 521;
The main shaft of motor 51 is fixedly connected with driving gear 521 and coincides with the axial line of driving gear 521;
First rotating shaft 21 is fixedly connected with follower gear 522 and coincides with the axial line of follower gear 522.
Gear drive has the advantages such as compact conformation, efficiency is high, the life-span is long.Multiple transmission gear can also be set between follower gear 522 and driving gear 521 in the present embodiment for transmitting power.
As shown in Figure 2, the rotation dirigibility of different pulley when the pulley rotation device for detecting flexibility that the present embodiment provides can detect when pulley is wound around different rope bands 3 and bear different loads, specifically can be divided into following several situation when detecting:
1, to be wound in the rope band 3 (such as wire rope) on tested pulley 6 as shown in Figure 2 identical, and under the identical condition of tested pulley 6, when detection applies different load by rope band 3 to tested pulley 6, the load of applying rotates the impact of dirigibility on tested pulley 6;
2, to be wound in the rope band 3 (such as wire rope) on tested pulley 6 as shown in Figure 2 identical, under the condition that the load that rope band 3 applies tested pulley 6 is identical, the rotation dirigibility of different tested pulleys 6 is measured;
3, tested pulley 6 is identical as shown in Figure 2, under the condition that the load that rope band 3 applies tested pulley 6 is identical, different rope bands 3 is measured on the impact of pulley rotation dirigibility.
As shown in Fig. 2, Fig. 3 and Fig. 7, what the embodiment of the present invention provided utilizes pulley rotation device for detecting flexibility to detect the method for pulley rotation dirigibility, comprises the following steps:
S1, on tested pulley 6, be socketed rope band 3, and drive tested pulley 6 to rotate around tested pulley 6 axial line by rope band 3;
The value of thrust that the rope band 3 detected respectively in S2, the process of rotating around its axial line at tested pulley 6 on the rope band 3 moved towards the direction close to tested pulley 6 and move upward towards the side away from tested pulley 6 bears respectively;
In difference between S3, the value of thrust that calculates on the rope band 3 that moves towards the direction close to tested pulley 6 and the rope band 3 that moves upward towards the side away from tested pulley 6 bears respectively and Fig. 1 Sn-Sn-1 value and the rope band 3 moved towards the direction close to tested pulley 6 on or value of thrust that the rope band 3 that moves upward away from the side of tested pulley 6 of court bears one of them ratio and Fig. 1 in the value of (Sn-Sn-1)/Sn or the value of (Sn-Sn-1)/Sn-1.
Can be drawn by above-mentioned calculating and can reflect that tested pulley 6 rotates the ratio of dirigibility quality, ratio is less, represents that tested pulley 6 rotates dirigibility better.
The value of (Sn-Sn-1)/Sn in ratio between the value of Sn-Sn-1 in above-mentioned difference and Fig. 1 and the value of thrust born on the rope band 3 moved upward away from the side of tested pulley 6 and Fig. 1 is preferably calculated in the present embodiment.
Because the value of thrust born on the rope band 3 moved upward away from the side of tested pulley 6 can not only include the summation of resistance that tested pulley 6 pairs of rope bands 3 apply and the resistance that power wheel 2 pairs of rope bands 3 apply, but also include the deadlock resistance of rope band 3, so when more accurately, comprehensively can reflect that rope band 3 drives tested pulley 6 to rotate, the rotation dirigibility of tested pulley 6.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope of request of the present invention protection.
Claims (10)
1. a pulley rotation device for detecting flexibility, is characterized in that: comprise base, power wheel, rope band, pulling force detector and actuating unit, wherein:
Described power wheel is flexibly connected with described base by the first rotating shaft, and it can around described first rotating shaft relative to described base rotation;
Described rope band is sheathed on tested pulley and described power wheel;
Described pulling force detector is fixedly connected with described rope band, the value of thrust that described pulling force detector bears respectively on the described rope band detected on the described rope band moved towards the direction close to described tested pulley and move upward towards the side away from described tested pulley;
Described actuating unit and described power wheel or described tested pulley one of them be connected, it is for driving coupled described power wheel or described tested pulley rotation, and drives not coupled described tested pulley or described power wheel to rotate by the described power wheel that rotates or described tested pulley and described rope band.
2. pulley rotation device for detecting flexibility according to claim 1, is characterized in that: described tested pulley is flexibly connected with described base by the second rotating shaft, and it can around described second rotating shaft relative to described base rotation.
3. pulley rotation device for detecting flexibility according to claim 2, is characterized in that: described pulley rotation device for detecting flexibility also comprises rope band strainer, wherein:
The sliding tray that described rope band strainer comprises hydraulic jack, support and is opened on base, described hydraulic jack is fixedly arranged on described base, and the piston rod of described hydraulic jack abuts against along its axial direction and described support, described second rotating shaft is flexibly connected with described support and can around its axial line relative to described holder pivots, described support can with the piston rod of described hydraulic jack towards away from or direction close to described power wheel slide in described sliding tray, or
Described rope band strainer comprises and to abut against with described rope band and position can along the stretching pulley of the perpendicular direction movement of described rope band, and described stretching pulley is flexibly connected with described base by the 3rd rotating shaft and it can around described 3rd rotating shaft relative to described base rotation.
4. pulley rotation device for detecting flexibility according to claim 1, it is characterized in that: described power wheel and described tested pulley are all positioned within described rope band, and the inner side of described rope band contacts with the outside surface of described power wheel and the outside surface of described tested pulley respectively.
5. according to the arbitrary described pulley rotation device for detecting flexibility of Claims 1-4, it is characterized in that: the pivot center of described power wheel and described tested pulley all parallels with surface level, described pulling force detector comprises first sensor and the second sensor, wherein:
Described first sensor and described second sensor are arranged at the diverse location place on described rope band respectively;
Described first sensor and described second sensor one of them when moving on the described rope band between described power wheel top and described tested pulley top with described rope band, described first sensor and described second sensor wherein another to move to bottom described power wheel with described rope band and bottom described tested pulley between described rope band on;
Described first sensor and described second sensor to be respectively used to detect bottom value of thrust and described power wheel that the described rope band between described power wheel top and described tested pulley top bears and bottom described tested pulley between the value of thrust that bears of described rope band.
6. pulley rotation device for detecting flexibility according to claim 5, is characterized in that: described rope band is wire rope, and described first sensor and described second sensor are lineoutofservice signal pull sensor.
7., according to the arbitrary described pulley rotation device for detecting flexibility of Claims 1-4, it is characterized in that: described pulley rotation device for detecting flexibility also comprises the data handling component be electrically connected with described pulling force detector, wherein:
The value of thrust that described data handling component is measured for receiving described pulling force detector, and one of them ratio of the value of thrust born on difference between the value of thrust calculating on the described rope band that move towards the direction close to described tested pulley and the described rope band that moves upward towards the side away from described tested pulley bears respectively and the described rope band that moves towards the direction close to described tested pulley or on the described rope band that moves upward away from the side of described tested pulley of court.
8. according to the arbitrary described pulley rotation device for detecting flexibility of Claims 1-4, it is characterized in that: described actuating unit comprises motor and gear train, the main shaft of described motor is by described gear train for the rotation of described power wheel provides power, and described gear train is one or more the combination wherein of gear drive, rope band gear train or chain-drive mechanism;
Or described actuating unit is that the axial line of the rotating shaft of main shaft and described power wheel coincides, and the motor that main shaft is fixedly connected with described first rotating shaft.
9. pulley rotation device for detecting flexibility according to claim 8, is characterized in that: described first rotating shaft is fixedly connected with described power wheel, or described first rotating shaft and described power wheel are integral type structure;
And/or, the follower gear that described gear train comprises driving gear and is meshed with described driving gear;
The main shaft of described motor is fixedly connected with described driving gear and coincides with the axial line of described driving gear;
Described first rotating shaft is fixedly connected with described follower gear and coincides with the axial line of follower gear.
10. utilize the arbitrary described pulley rotation device for detecting flexibility of claim 1 to 9 to detect the method for pulley rotation dirigibility, it is characterized in that: comprise the following steps:
Tested pulley is socketed rope band, and drives described tested pulley to rotate around described tested pulley axial line by described rope band;
The value of thrust that the described rope band detected respectively in the process of rotating around its axial line at described tested pulley on the described rope band moved towards the direction close to described tested pulley and move upward towards the side away from described tested pulley bears respectively;
One of them ratio of the value of thrust born on difference between the value of thrust that the described rope band calculated on the described rope band that moves towards the direction close to described tested pulley and move upward towards the side away from described tested pulley bears respectively and the described rope band moved towards the direction close to described tested pulley or on the described rope band that moves upward away from the side of described tested pulley of court.
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| CN103616175A (en) * | 2013-12-03 | 2014-03-05 | 上海振华重工(集团)股份有限公司 | Pulley testbed |
| CN104111167B (en) * | 2014-07-02 | 2016-09-21 | 武汉船用机械有限责任公司 | The delivery test equipment of a kind of stern cylinder and using method thereof |
| CN106404432A (en) * | 2015-08-12 | 2017-02-15 | 北京国网富达科技发展有限责任公司 | Pay-off pulley testing device, testing system, and testing method |
| CN111487052B (en) * | 2020-05-29 | 2021-01-15 | 奔轮新材料(嘉兴)股份有限公司 | Pulley detection processing device |
| CN111927881A (en) * | 2020-08-17 | 2020-11-13 | 曾镇涛 | Mechanical device based on rope body tension transmission |
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