CN216978629U - Elevator is testing arrangement for rope sheave - Google Patents
Elevator is testing arrangement for rope sheave Download PDFInfo
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- CN216978629U CN216978629U CN202220499092.2U CN202220499092U CN216978629U CN 216978629 U CN216978629 U CN 216978629U CN 202220499092 U CN202220499092 U CN 202220499092U CN 216978629 U CN216978629 U CN 216978629U
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Abstract
The utility model discloses a testing device for an elevator rope sheave, which comprises: the test support is provided with an elevator rope wheel to be tested at the upper part through an elevator rope wheel shaft, and a plurality of rope grooves are formed in the elevator rope wheel; a plurality of test ropes for performing a static pressure test on the elevator sheave, the test ropes passing around and contacting the rope grooves corresponding to the elevator sheave; the loading force monitoring device is connected with one end of each test rope; and the loading force applying device is connected with the other ends of all the test ropes. The utility model can test the static pressure of the elevator rope wheels with various specifications and flexibly transport the elevator rope wheels to various environments for testing, and overcomes the defects of inconvenient use and incapability of simulating the pressure load of the steel wire rope to the rope wheel in a real scene in the prior art.
Description
Technical Field
The utility model relates to the field of elevator rope sheave testing, in particular to a testing device for an elevator rope sheave.
Background
A traction elevator is generally provided with a plurality of return sheaves or guide sheaves (hereinafter, collectively referred to as elevator sheaves), and these elevator sheaves are usually made of a metal material. In order to save cost, save energy and reduce emission later, and use the background of new material replacement traditional material, the material of these elevator rope sheave is more and more replaced by nylon.
In order to verify whether the performance of the elevator rope pulley made of nylon or non-nylon meets the use requirement, a series of tests are required to be carried out on the elevator rope pulley, particularly, the mechanical performance of the elevator rope pulley is subjected to a thorough test, and a typical test method is a static pressure test and tests such as compression resistance, impact resistance, drawing, aging and the like under the environment factors of various high and low temperatures, humidity, salt mist, even illumination with various wavelengths and the like are added.
The conventional method for static pressure test is to place the elevator rope pulley on a universal testing machine for compression test, but the universal testing machine has large volume and more equipment, can only be carried out in a constant-temperature laboratory, and cannot move the elevator rope pulley into a multifunctional harsh environment cabin for experiment. The test is carried out on a universal testing machine, and a complex jig is also needed.
In order to make the test accurate, the concave metal pressing block with the same pitch diameter needs to be manufactured and matched with the round steel wire rod bent into the same pitch diameter to simulate the steel wire rope. On the other hand, when the elevator rope wheel is under the pressure of the steel wire rope, the pressure values of different positions in the same groove are different, and the pressure load of the steel wire rope on the rope wheel under a real scene cannot be simulated by using the universal testing machine and the jig pressing block.
Therefore, it is necessary to design a testing apparatus for an elevator sheave, which can perform static pressure tests of elevator sheaves of various specifications and can be flexibly transported to various environments for testing.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide a testing device for an elevator sheave. The defects that the prior art is inconvenient to use and cannot simulate the pressure load of the steel wire rope on the rope pulley in a real scene can be overcome.
In order to realize the purpose of the utility model, the adopted technical scheme is as follows:
a testing device for an elevator sheave, comprising:
the test device comprises a test bracket, a test device and a test device, wherein the upper part of the test bracket is provided with an elevator rope wheel to be tested through an elevator rope wheel shaft, and the elevator rope wheel is provided with a plurality of rope grooves;
a plurality of test ropes for performing a static pressure test on the elevator sheave, the test ropes passing around and contacting the rope grooves corresponding to the elevator sheave;
the loading force monitoring device is connected with one end of each test rope;
and the loading force applying device is connected with the other ends of all the test ropes.
In a preferred embodiment of the present invention, the test rack includes a pair of columns, a pair of beams, a pair of bottom beams, an upper support plate and a lower support plate, the pair of bottom beams are arranged in parallel at intervals, and the bottom of each column is fixed on the corresponding bottom beam and arranged in parallel at intervals; an elevator rope wheel shaft groove is formed in the top of each upright column, and during testing, two ends of the elevator rope wheel shaft are placed in the elevator rope wheel shaft grooves of the pair of upright columns, so that the elevator rope wheels are placed between the upper parts of the pair of upright columns; each cross beam is fixed in the middle of the corresponding stand column and arranged in parallel at intervals, two ends of one upper supporting plate are fixedly connected with the upper parts of the pair of stand columns respectively, and two ends of one lower supporting plate are fixedly connected with the lower parts of the pair of stand columns respectively.
In a preferred embodiment of the present invention, each upright post and the corresponding bottom beam are arranged in an inverted T shape.
In a preferred embodiment of the present invention, the loading force detecting device includes at least one upper connecting part, at least one tension sensor, at least one lower connecting part, and a tension sensing display, wherein one end of the upper connecting part is connected to one end of the test rope, and the other end of the upper connecting part is fixedly connected to the tension sensor; one end of the lower connecting part is fixedly connected with the tension sensor, and the other end of the lower connecting part is fixedly connected with one end of the pair of cross beams; the tension sensing display is in signal connection with the tension sensor to display tension data tested by the tension sensor.
In a preferred embodiment of the present invention, the tension sensing display is installed at a position convenient for observation of any one of the columns.
In a preferred embodiment of the present invention, the upper connecting member includes an upper U-shaped connecting member, an upper bolt and a rope hanging shaft, a rope hanging shaft through hole is formed in each of a pair of vertical arms of the upper U-shaped connecting member, and a bolt through hole is formed in a lateral portion of the upper U-shaped connecting member; one end of each test rope connected with the loading force monitoring device is anchored into a first rope loop through a first anchoring part; and after the rope hanging shaft penetrates through the first rope ring on the test rope, two ends of the rope hanging shaft respectively penetrate through rope hanging shaft through holes on a pair of vertical arms of the upper U-shaped connecting piece, and the upper bolt penetrates through bolt through holes on the transverse part of the upper U-shaped connecting piece and then is connected with the tension sensor.
In a preferred embodiment of the present invention, the upper bolt is passed through a bolt penetration hole formed in the lateral portion of the upper U-shaped connector and then tightened by an upper nut.
In a preferred embodiment of the present invention, the upper connecting part is a first riveting pull rod, one end of the first riveting pull rod is fixedly connected to one end of the test rope connected to the loading force monitoring device, and the other end of the first riveting pull rod is fixedly connected to the tension sensor.
In a preferred embodiment of the present invention, a fastening rotation-preventing clamping point is disposed at one end of the first riveting pull rod, and a thread is disposed at the other end of the first riveting pull rod, so that the other end of the first riveting pull rod is fixedly connected to the tension sensor through the thread.
In a preferred embodiment of the present invention, the lower connecting member includes an upper pull rod, a lower pull rod and a bottom plate, one end of the upper pull rod is fixedly connected to the tension sensor, the other end of the lower pull rod is hinged to one end of the lower pull rod, the other end of the lower pull rod is fixedly connected to the bottom plate, and the bottom plate is fixedly connected to one end of the pair of cross beams.
In a preferred embodiment of the present invention, the lower link includes a lower U-shaped connecting member, a screw rod and a link shaft, a pair of vertical arms of the lower U-shaped connecting member are respectively provided with a first link shaft through hole, one end of the screw rod is fixed on a cross arm of the lower U-shaped connecting member, and the other end of the screw rod passes through the screw rod hole on the bottom plate and is locked by a lower nut; and a second pull rod shaft through hole is also formed in the other end of the upper pull rod, and after the pull rod shaft penetrates through the second pull rod shaft through hole in the upper pull rod, the two ends of the pull rod shaft respectively penetrate through the first pull rod shaft through holes in the pair of vertical arms of the lower U-shaped connecting piece.
In a preferred embodiment of the present invention, the lower link includes a lower U-shaped connecting member and a link shaft, a pair of vertical arms of the lower U-shaped connecting member are respectively provided with a first link shaft through hole, a cross arm of the lower U-shaped connecting member is fixedly connected to the bottom plate, the other end of the upper link is also provided with a second link shaft through hole, and after the link shaft passes through the second link shaft through hole of the upper link, both ends of the link shaft respectively pass through the first link shaft through holes of the pair of vertical arms of the lower U-shaped connecting member.
In a preferred embodiment of the present invention, the loading force applying device comprises a plurality of rope end pull rods, a loading force applying component and a bearing component; the other end of each test rope, which is connected with the loading force applying device, is anchored into a second rope loop through a second anchoring piece; one end of each rope end pull rod is provided with a ferrule which is sleeved on the second rope ring, all the rope end pull rods are fixedly connected with the bearing part, the loading force applying part is placed on the bearing part, and the test rope is applied with a pulling force through the bearing part and the rope end pull rods.
In a preferred embodiment of the present invention, the receiving component includes a carrying pole beam, a carrying pole beam cover plate, two small ball heads, and two sets of rope head fixing components, wherein two ends of the carrying pole beam are respectively provided with a small ball head hole, two ends of the carrying pole beam cover plate are respectively provided with a small ball head screw rod through hole, each small ball head is provided with a small ball head and a small ball head screw rod connected with the small ball head, the carrying pole beam cover plate is fixed on the bottom of the carrying pole beam, the small ball head holes on the carrying pole beam and the small ball head screw rod through holes on the carrying pole beam cover plate are aligned one by one, the small ball head parts of the two small ball heads are placed in the small ball head holes corresponding to the carrying pole beam, and the small ball head screw rods of the two small ball heads penetrate through the small ball head through screw rods on the carrying pole beam cover plate to respectively fix the two sets of rope head fixing components; all the rope end pull rods are fixedly connected with the two sets of rope end fixing parts respectively in an equal or unequal mode; the loading force applying member is fixed to the shoulder pole beam.
In a preferred embodiment of the present invention, the loading force applying part comprises a loading force applying base plate, a loading force applying cover plate, a large ball head and two hexagon socket head bolts; the loading force applying base plate is provided with a large ball head hole and two inner hexagonal bolt through holes, the loading force applying cover plate is provided with a first large ball head screw through hole and two first inner threaded holes, the loading force applying cover plate is arranged on the bottom surface of the loading force applying base plate, the large ball head hole and the two inner hexagonal bolt through holes in the loading force applying base plate are respectively aligned with the large ball head screw through hole and the two first inner threaded holes in the loading force applying cover plate one by one, and the two inner hexagonal bolts respectively penetrate through the two inner hexagonal bolt through holes in the loading force applying base plate and are screwed into the two first inner threaded holes in the loading force applying cover plate, so that the loading force applying cover plate is fixed on the bottom surface of the loading force applying base plate; the big ball head is provided with a big ball head part and a big ball head screw rod connected with the big ball head part, the big ball head part is arranged in a big ball head hole on the loading force applying bottom plate, and the big ball head screw rod of the big ball head penetrates through a first big ball head screw rod hole on the loading force applying cover plate and then is fixed on the shoulder pole beam and the shoulder pole beam cover plate.
In a preferred embodiment of the present invention, the weight of the loading force applying base plate can be selected as required, and the tension of the test rope can be adjusted by selecting the weight of the loading force applying base plate.
In a preferred embodiment of the present invention, a second big ball screw hole is formed in the carrying pole, a second internal threaded hole is formed in the carrying pole cover plate, and after the big ball screw of the big ball passes through the first big ball screw hole in the loading force applying cover plate, the big ball screw of the big ball passes through the second big ball screw hole in the carrying pole and is screwed into the second internal threaded hole in the carrying pole cover plate, so that the big ball screw of the big ball is fixedly connected with the carrying pole and the carrying pole cover plate.
In a preferred embodiment of the present invention, each rope fastening member comprises a rope bottom plate, a rope cover plate and at least one spherical sleeve, wherein the rope bottom plate is provided with at least one spherical hole, the rope cover plate is provided with a spherical sleeve through hole, the spherical sleeve has an outer shape with a spherical head part and a column part, and the spherical sleeve is internally provided with a rope through hole; the rope end base plate is fixed on the bottom surface of the rope end base plate, the spherical hole in the rope end base plate is aligned with the spherical lantern ring through hole in the rope end cover plate, the spherical head of the spherical lantern ring is arranged in the spherical hole, the columnar part of the spherical lantern ring is inserted into the spherical lantern ring through hole in the rope end cover plate, and the rope end pull rod penetrates through the corresponding spherical hole, the rope end through hole and the spherical lantern ring through hole and then is locked, so that the rope end base plate, the rope end cover plate and the spherical lantern ring are fixed together.
In a preferred embodiment of the present invention, a rope end pull rod thread section is arranged at the lower part of the rope end pull rod, and the rope end pull rod thread section passes through the corresponding spherical hole, rope end through hole and spherical lantern ring through hole and then is locked by a pull rod nut screwed on the rope end pull rod thread section.
In a preferred embodiment of the present invention, the loading force applying part includes a rope hitch plate, a plurality of loading springs; a second riveting pull rod is anchored at the other end of the test rope connected with the loading force applying component, one end of the second riveting pull rod is provided with a clamping point for preventing rotation during fastening, and the other end of the first riveting pull rod is provided with a thread; the rope hitch plate is fixed at the other end of the pair of cross beams, a plurality of riveting pull rod through holes are formed in the rope hitch plate, one end, provided with threads, of the second riveting pull rod penetrates through the corresponding riveting pull rod through holes in the rope hitch plate and the corresponding loading springs, and then the rope hitch plate is locked and attached through at least one riveting pull rod nut screwed on the threads of the second riveting pull rod, and the compression degree of the loading springs can be adjusted through adjusting the riveting pull rod nuts so as to adjust the tension of the test rope; one end of the loading spring is in contact with the rope hitch plate, and the other end of the loading spring is in contact with the riveting pull rod nut.
In a preferred embodiment of the present invention, the loading force applying component further includes a plurality of upper spring cover plates and a plurality of lower spring cover plates, each upper spring cover plate and each lower spring cover plate are respectively sleeved on two ends of each loading spring, after one end of the second riveting pull rod with threads passes through the corresponding riveting pull rod through hole on the rope hitch plate, the inner hole of the corresponding upper spring cover plate, the corresponding loading spring and the inner hole of the corresponding lower spring cover plate, the end of the second riveting pull rod with threads is locked by at least one riveting pull rod nut screwed on the threads of the second riveting pull rod, one end of the upper spring cover plate is in contact with the rope hitch plate, and the upper spring cover plate is in contact with the riveting pull rod nut.
The utility model has the beneficial effects that:
the utility model can test the static pressure of the rope wheel with various specifications and flexibly transport the rope wheel to various environments for testing, and overcomes the defects of inconvenient use and incapability of simulating the pressure load of the steel wire rope to the rope wheel in a real scene in the prior art.
Drawings
Fig. 1 is a schematic view of the overall structure of embodiment 1 of the present invention.
FIG. 2 is a partial structural view (stent) of the present invention.
Fig. 3 is a schematic view of a partial structure (steel wire rope) of embodiment 1 of the present invention.
Fig. 4 is a partial structural schematic view (load monitoring apparatus) of embodiment 1 of the present invention.
Fig. 5 is a partial structural view (tension balancing device) of embodiment 1 of the present invention.
Fig. 6 is a schematic view of the overall structure of embodiment 2 of the present invention.
Fig. 7 is a partial structural schematic view (steel wire rope) of embodiment 2 of the present invention.
Fig. 8 is a partial structural schematic view (load monitoring apparatus) of embodiment 2 of the present invention.
Fig. 9 is a partial structural view (elastic rope end device) of embodiment 2 of the utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the utility model and not to limit the scope of the utility model. Moreover, in the following structures, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description. And are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation and, therefore, should not be taken to be limiting of the utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The rope wheel of the present invention includes, but is not limited to, a return rope wheel or a guide rope wheel made of nylon or non-nylon materials.
The testing apparatus for an elevator sheave shown in fig. 1 to 9 includes a bracket 100 for mounting other components.
With particular reference to fig. 2, the support 100 includes upright posts 111, 112, and the upright posts 111, 112 are assembled by upper and lower support plates 121, 122.
The two beams 131, 132 are mounted at the same height on the columns 111, 112, respectively.
In the upper part of the legs 111, 112 of the bracket 100, there are provided elevator sheave shaft grooves, and in the test, both ends of the elevator sheave shaft 210 are rested in the elevator sheave shaft grooves of the pair of legs 111, 112 with the elevator sheave shaft 210 interposed between the upper parts of the pair of legs 111, 112.
Each cross beam 131, 132 is fixed at the middle position of the corresponding upright 111, 112 and arranged in parallel at intervals, the two ends of an upper support plate 121 are respectively fixedly connected with the upper parts of the pair of upright 111, 112, and the two ends of a lower support plate 122 are respectively fixedly connected with the lower parts of the pair of upright 111, 112.
A plurality of test ropes 230 for performing a static pressure test on the elevator sheave 220 are wound around the rope grooves corresponding to the elevator sheave 220 and are brought into contact with the rope grooves corresponding to the elevator sheave 220.
The loading monitoring device of the present invention can be further divided into the first loading force monitoring device 300 of embodiment 1 and the second loading force monitoring device 500 as shown in embodiment 2.
The steel cord of the present invention may be further divided into a test cord 230 of example 1 and a steel cord 240 of example 2.
With particular reference to fig. 1, one end of the test string 230 of embodiment 1 is provided with a first loading force monitoring device 300 for loading the axial pressure thereof, and the other end of the test string 230 is provided with a first loading force applying device 400 for adjusting the tension thereof.
With particular reference to fig. 1 and 3, the two ends of the test rope 230 are connected to the first loading force monitoring device 300 or the first loading force applying device 400 by folding and forming the first rope loop after the anchor 231 is disposed.
The first loading force monitoring device 300 is connected to a first end of the test line 230 by an upper U-shaped connector 310.
A pair of vertical arms of the upper U-shaped connecting member 310 are respectively provided with a rope hanging shaft through hole, and a transverse part of the upper U-shaped connecting member 310 is provided with a bolt through hole.
Specifically, the rope hanging shaft 311 of the upper U-shaped connector 310 penetrates through the first loop of the riveted test rope 230, the rope hanging shaft 311 is installed on the rope hanging shaft through hole of the upper U-shaped connector 310, and the position is limited and fixed by the cotter pin 312.
The upper U-shaped connector 310 is connected to the upper end of the tension sensor 320 by a bolt 313 and a nut 314. The bolt 313 passes through the bolt penetration hole.
The lower end of the tension sensor 320 is connected with an upper pull rod 331, and the upper pull rod 331 and the lower pull rod 332 are installed through a pull rod shaft 333 and a cotter pin 334 to form an articulated joint, so as to ensure that the tension sensor 320 only bears axial tension.
A pair of vertical arms of a lower U-shaped connecting piece 336 of the lower pull rod 332 are respectively provided with a through hole for mounting a pull rod shaft 333, one end of a screw rod 337 of the lower pull rod 332 is fixed on a cross arm of the lower U-shaped connecting piece 336, and the other end of the screw rod 337 penetrates through a screw rod hole on the bottom plate 340 and is locked by a lower nut 335; a second rod shaft through hole is also formed at the other end of the upper rod 331, and after the rod shaft 333 passes through the second rod shaft through hole formed in the upper rod 331, both ends of the rod shaft pass through the first rod shaft through holes formed in the pair of vertical arms of the lower U-shaped connecting member 336, respectively.
The base plate 340 is fixed on the cross beams 131, 132 (as shown in fig. 1) by a bolt assembly 341, the lower nut 335 at the end of the lower pull rod 332 is tightened, the lower pull rod 332 moves downwards to tighten the test rope 230, the axial tension of the test rope 230 can be adjusted by adjusting the lower nut 335, and thus the static pressure load on the elevator sheave 220 can be adjusted, and the load can be seen in real time through the sensor display 321. The sensor display 32 is in signal communication with the tension sensor 320 to display tension data measured by the tension sensor 320. The tension sensor 320 may be mounted at any convenient location on the mast for viewing.
With particular reference to fig. 5, the first loading force applying means 400 of embodiment 1 includes a plurality of pull-cord ties 410 connected in series with the second end of the test cord 230. One end of each cord end pull rod 410 has a ferrule that fits over a second loop formed at the second end of the test cord 230.
The end of the rope end pull rod 410 passes through the two-hole rope hitch plate 420 or the three-hole rope hitch plate 430 and then is locked by the pull rod nut 450, and the two-hole rope hitch plate 420 or the three-hole rope hitch plate 430 are two rope end fixing parts.
A shoulder pole beam structure 440 is arranged on the upper part of the two-hole rope hitch plate 420 or the three-hole rope hitch plate 430.
The shoulder pole beam structure 440 further includes a shoulder pole beam 442 disposed at an upper portion of the small ball head 441 and a shoulder pole beam cover plate 443 disposed at a lower portion of the small ball head 441, and the shoulder pole beam 442 is provided with a hemispherical blind hole 442a contacting with a spherical surface of the small ball head 441.
The end of the small ball head 441 passes through the two holes of the two-hole rope head plate 420 or the three holes of the three-hole rope head plate 430.
By arranging the small ball head 441 at the above position, the constraint on the degree of freedom of the relation is reduced, and a seesaw effect is realized. According to the force balance equation, when the forces at the two ends of the two-hole type rope hitch plate 420 are unequal, the two-hole type rope hitch plate 420 is inverted to the side with larger stress, so that the test rope 230 at the side is loosened, the axial tension in the test rope 230 is reduced until the two ends of the two-hole type rope hitch plate 420 are stressed the same, namely the two test ropes 230 have the same tension, and the mutual balance of the tension of the steel wire ropes is realized.
Similarly, the three-hole rope hitch plate 430 is formed by installing the small ball 441 in the middle of the three holes, so that the small ball is equidistant from the three holes, and the automatic tension balance of the three test ropes 230 can be realized.
The upper part of the shoulder pole beam body structure 440 is provided with a bottom plate structure 460, a large ball head 461 is arranged in the bottom plate structure 460, and the tail end of the large ball head 461 penetrates through positions among the small ball heads 441 to realize tension balance among different test ropes 230.
The base plate structure 460 includes a loading force applying base plate 462 provided at an upper portion of the large ball head 461 and a loading force applying cover plate 463 provided at a lower portion, and the loading force applying base plate 462 is provided with a large ball head hole 462a which is in contact with a spherical surface of the large ball head 461.
A large ball hole 462a and two hexagon socket head bolt through holes 462b are formed in the loading force applying base plate 462, and a first large ball screw through hole 463a and two first female screw holes 463b are formed in the loading force applying cover plate 463.
The loading force applying cover 463 is provided on the bottom surface of the loading force applying base plate 462 such that the large ball head hole 462a and the two hexagon socket head bolt penetration holes 462b of the loading force applying base plate 462 are aligned with the first large ball head screw penetration hole 463a and the two first internally threaded holes 463b of the loading force applying cover 463 one by one.
Two hexagon socket head cap screws 464 are respectively screwed into two first female screw holes 463b of the loading force applying cover 463 after passing through two hexagon socket head cap screw through holes 462b of the loading force applying base plate 462, so that the loading force applying cover 463 is fixed to the bottom surface of the loading force applying base plate 462.
The large ball 461 has a large ball head portion and a large ball screw connected to the large ball head portion, the large ball head portion is disposed in a large ball hole 462a of the loading force applying base plate 462, and the large ball screw of the large ball head portion passes through a first large ball screw penetration hole 463a of the loading force applying cover plate 463 and is fixed to the shoulder pole beam 442 and the lower shoulder pole beam cover plate 443.
The weight of the loading force application base plate 462 can be selected as desired, and the tension of the test line can be adjusted by selecting the weight of the loading force application base plate 462.
The shoulder pole beam 442 has a second large ball screw through hole 442b, and the shoulder pole beam cover plate 443 has a second hollow screw hole 443 a.
After the big ball-head screw of the big ball head 461 passes through the first big ball-head screw perforation 463a on the loading force applying cover plate 463, the big ball-head screw passes through the second big ball-head screw perforation 442b on the carrying pole beam 442 and is screwed into the second inner hollow threaded hole 443a on the carrying pole beam cover plate 443, so that the big ball-head screw of the big ball head 461 is fixedly connected with the carrying pole beam 442 and the carrying pole beam cover plate 443.
According to the equilibrium equation of force, the distance between the hemispherical blind holes 442a at the two ends of the shoulder pole beam 442 and the large bulb 461 at the middle is set reasonably, and the shoulder pole beam 442 can make the tension of the two test ropes 230 at one end of the shoulder pole beam 442 the same as the internal tension of the three test ropes 230 at the other end. Thus, the internal tensions of the five steel wire ropes are equal.
In addition, through reasonable combination and deformation design of the two-hole rope hitch plate 420 or the three-hole rope hitch plate 430, the function of automatically balancing the tension of 2 to 9 steel wire ropes can be realized. This covers the number of grooves of most nylon wheels of elevators, so the device of the utility model can basically test nylon wheels with various specifications.
The two holes of the two-hole rope hitch plate 420 are hemispherical through holes and are provided with spherical lantern rings 421. Specifically, the ball ring 421 is disposed between the two-hole rope end bottom plate 422 and the two-hole rope end cover plate 423.
The three holes of the three-hole rope hitch plate 430 are hemispherical through holes and are provided with a ball-shaped collar 431. Specifically, the ball-shaped collar 431 is disposed between the three-hole rope head bottom plate 432 and the three-hole rope head cover plate 433.
The design of the spherical lantern ring 421 or 431 can make the rope end pull rod 410 rotate in the hemispherical through hole to a certain extent, so that the force applied to the spherical lantern ring 421 or 431 by the pull rod nut 450 at the lower end of the rope end pull rod 410 is always positive when the two-hole rope hitch plate 420 or the three-hole rope hitch plate 430 inclines, that is, the forces at two ends of the two-hole rope hitch plate 420 or the three-hole rope hitch plate 430 are axial of the test rope 230, and are irrelevant to the inclination angle of the two-hole rope hitch plate 420 or the three-hole rope hitch plate 430.
The method ensures that the test ropes 230 and the rope end pull rod 410 are only under axial tension, and improves the accuracy of balancing the tension of each test rope 230.
In the test, after the test rope 230, the first loading force monitoring device 300, the first loading force applying device 400, and the like are installed, a micro deformation monitoring device (not shown) for the elevator sheave 220 is further installed at a proper position of the elevator sheave 220, and is usually monitored by a dial indicator.
Fixing the dial indicator on the test frame, lightly pressing the probe against the position to be monitored, zeroing the pointer in the dial indicator, adjusting the lower nut 335 below the lower pull rod 332, slowly tensioning the test rope 230, and observing the value of the display 321 until the preset load is reached.
According to the change of the pointer of the dial indicator, the slight deformation condition of the corresponding position of the elevator rope wheel 220 after being pressed can be monitored.
After standing for a preset time, the lower nut 335 of the lower pull rod 332 is slowly unscrewed and can be unloaded.
The change situation of the pointer of the dial indicator is observed at regular time, and the resilience performance data of the elevator rope wheel 220 after unloading can be measured and calculated by adopting a certain algorithm.
The device is transported to different environmental occasions or put into an environmental chamber with preset specific parameters for testing, and static pressure performance data and resilience performance data under various environmental parameters can be obtained.
With particular reference to fig. 6, one end of the wire rope 240 of embodiment 2 is connected to a second loading force monitoring device 500 for loading the axial pressure thereof through a first riveting pull rod 242 provided with an anti-rotation clamping point 241 during fastening, and the other end of the wire rope 240 is connected to a loading force applying member 600 for adjusting the tension thereof through a second riveting pull rod 244 provided with a clamping surface 243.
With particular reference to fig. 8, the second loading force monitoring device 500 includes a plurality of tension sensors 510 connected in series with the first end of the steel cable 240, and the lower ends of the tension sensors 510 are connected to tie rod holders 530 fixed to the support beams 131 and 132 through upper tie rods 520. Specifically, the end of the upper rod 520 is fixed on the rod axle 531 of the rod seat 530, and a cotter pin 532 is provided.
With particular reference to fig. 9, the loading force applying member 600 includes a plurality of loading springs 610 connected in series with the second end of the cable 240, and the plurality of loading springs 610 are retained by an upper spring cover 630 after passing through the cable head plate 620; the ends of the plurality of loading springs 610 are connected to a rivet draw nut 650 through a lower spring cover plate 640, and the elasticity of the loading springs 610 is adjusted by riveting the draw nut 650, so that the tension of the corresponding wire rope 240 reaches a predetermined load.
Each upper spring cover plate 630 and each lower spring cover plate 640 are respectively sleeved at two ends of each loading spring 610, and one end of the second riveting pull rod 244 with threads passes through a corresponding riveting pull rod through hole on the rope hitch plate 620 and an inner hole of the corresponding upper spring cover plate 630.
After the corresponding loading spring 610 and the corresponding inner hole of the lower spring cover plate 640 are locked by at least one riveting pull rod nut 650 screwed on the thread of the second riveting pull rod 244, one end of the upper spring cover plate 630 is in contact with the rope hitch plate 620, and the upper spring cover plate 630 is in contact with the riveting pull rod nut 650.
As in embodiment 1, the testing apparatus of this embodiment is also provided with a dial indicator to monitor the minute deformation data of the elevator sheave 220.
Like embodiment 1, this embodiment can be transported to different environmental occasions or placed in an environmental chamber preset with specific parameters for testing, and static pressure performance data and resilience performance data under various environmental parameters can be obtained.
The basic principles and main features of the utility model and the advantages of the utility model have been shown and described above.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined by the appended claims and their equivalents.
Claims (21)
1. A testing device for an elevator sheave, comprising:
the test device comprises a test bracket, a test device and a test device, wherein the upper part of the test bracket is provided with an elevator rope wheel to be tested through an elevator rope wheel shaft, and the elevator rope wheel is provided with a plurality of rope grooves;
a plurality of test ropes for performing a static pressure test on the elevator sheave, the test ropes passing around and contacting the rope grooves corresponding to the elevator sheave;
the loading force monitoring device is connected with one end of each test rope;
and the loading force applying device is connected with the other ends of all the test ropes.
2. The testing device for the sheave of the elevator as claimed in claim 1, wherein the testing bracket includes a pair of columns, a pair of cross beams, a pair of bottom beams, an upper supporting plate and a lower supporting plate, the pair of bottom beams being spaced apart in a parallel manner, the bottom of each column being fixed to the corresponding bottom beam and spaced apart in a parallel manner; an elevator rope pulley shaft groove is formed in the top of each upright column, and during testing, two ends of the elevator rope pulley shaft are placed in the elevator rope pulley shaft grooves of the pair of upright columns, so that the elevator rope pulley is placed between the upper portions of the pair of upright columns; each cross beam is fixed in the middle of the corresponding stand column and arranged in parallel at intervals, two ends of one upper supporting plate are fixedly connected with the upper parts of the pair of stand columns respectively, and two ends of one lower supporting plate are fixedly connected with the lower parts of the pair of stand columns respectively.
3. The testing device for the sheave of the elevator as set forth in claim 2, wherein each of the columns is disposed in an inverted T-shape with respect to the corresponding bottom beam.
4. The testing device for the elevator sheave of claim 2, wherein the loading force detecting means comprises at least one upper connecting member, at least one tension sensor, at least one lower connecting member, and a tension sensing display, one end of the upper connecting member being connected to one end of the test rope, and the other end of the upper connecting member being fixedly connected to the tension sensor; one end of the lower connecting part is fixedly connected with the tension sensor, and the other end of the lower connecting part is fixedly connected with one end of the pair of cross beams; the tension sensing display is in signal connection with the tension sensor to display tension data tested by the tension sensor.
5. The testing device for the sheave of the elevator as set forth in claim 4, wherein the tension sensing indicator is installed at a position convenient to observe on any one of the columns.
6. The testing device for the elevator sheave according to claim 4, wherein the upper connecting member includes an upper U-shaped connecting member, an upper bolt, and a rope hanging shaft, a rope hanging shaft through hole is formed in each of a pair of vertical arms of the upper U-shaped connecting member, and a bolt through hole is formed in a lateral portion of the upper U-shaped connecting member; one end of each test rope connected with the loading force monitoring device is anchored into a first rope loop through a first anchoring part; and after the rope hanging shaft penetrates through the first rope ring on the test rope, two ends of the rope hanging shaft respectively penetrate through rope hanging shaft through holes on a pair of vertical arms of the upper U-shaped connecting piece, and the upper bolt penetrates through bolt through holes on the transverse part of the upper U-shaped connecting piece and then is connected with the tension sensor.
7. The testing device for the sheave of the elevator as set forth in claim 6, wherein the upper bolt is passed through a bolt penetration hole formed at a lateral portion of the upper U-shaped connecting member and tightened by an upper nut.
8. The testing device for the elevator rope wheel according to claim 4, wherein the upper connecting part is a first riveting pull rod, one end of the first riveting pull rod is fixedly connected with one end of the testing rope connected with the loading force monitoring device, and the other end of the first riveting pull rod is fixedly connected with the tension sensor.
9. The testing device for the elevator rope pulley according to claim 8, wherein a clamping point for preventing rotation during fastening is provided at one end of the first riveting pull rod, and a thread is provided at the other end of the first riveting pull rod, so that the other end of the first riveting pull rod is fixedly connected with the tension sensor through the thread.
10. The testing device for the elevator sheave according to claim 6, 7, 8 or 9, wherein the lower connecting member includes an upper rod, a lower rod and a base plate, one end of the upper rod is fixedly connected to the tension sensor, the other end of the lower rod is hinged to one end of the lower rod, the other end of the lower rod is fixedly connected to the base plate, and the base plate is fixedly connected to one ends of the pair of cross members.
11. The testing device for the elevator sheave according to claim 10, wherein the lower tie bar comprises a lower U-shaped connecting member, a screw rod and a tie bar shaft, a pair of vertical arms of the lower U-shaped connecting member are respectively provided with a first tie bar shaft through hole, one end of the screw rod is fixed on a cross arm of the lower U-shaped connecting member, and the other end of the screw rod passes through a screw rod hole in the bottom plate and is locked by a lower nut; and a second pull rod shaft through hole is also formed in the other end of the upper pull rod, and after the pull rod shaft penetrates through the second pull rod shaft through hole in the upper pull rod, the two ends of the pull rod shaft respectively penetrate through the first pull rod shaft through holes in the pair of vertical arms of the lower U-shaped connecting piece.
12. The testing device for the sheave of an elevator as claimed in claim 10, wherein the lower tie bar comprises a lower U-shaped connecting member and a tie bar shaft, a first tie bar shaft through hole is formed in each of a pair of vertical arms of the lower U-shaped connecting member, a cross arm of the lower U-shaped connecting member is fixedly connected to the base plate, a second tie bar shaft through hole is formed in the other end of the upper tie bar, and the tie bar shaft passes through the second tie bar shaft through hole of the upper tie bar and then passes through the first tie bar shaft through hole of each of the pair of vertical arms of the lower U-shaped connecting member.
13. A testing device for an elevator sheave according to claim 4, 5, 6, 7, 8 or 9, wherein said loading force applying means comprises a plurality of rope end pulling rods, loading force applying members, receiving members; the other end of each test rope connected with the loading force applying device is anchored into a second rope loop through a second anchoring part; one end of each rope end pull rod is provided with a ferrule which is sleeved on the second rope ring, all the rope end pull rods are fixedly connected with the bearing part, the loading force applying part is placed on the bearing part, and the test rope is applied with a pulling force through the bearing part and the rope end pull rods.
14. The testing device for an elevator sheave according to claim 13, the bearing part comprises a shoulder pole beam, a shoulder pole beam cover plate, two small ball heads and two sets of rope head fixing parts, two ends of the shoulder pole beam are respectively provided with a small ball head hole, two ends of the shoulder pole beam cover plate are respectively provided with a small ball head screw rod through hole, each small ball head is provided with a small ball head part and a small ball head screw rod connected with the small ball head part, the carrying pole beam cover plate is fixed on the bottom of the carrying pole beam, small ball head holes in the carrying pole beam are aligned with small ball head screw rod through holes in the carrying pole beam cover plate one by one, small ball head parts of the two small ball heads are arranged in the small ball head holes corresponding to the carrying pole beam, and the small ball head screw rods of the two small ball heads penetrate through the small ball head screw rod through holes in the carrying pole beam cover plate to be respectively fixed on two sets of rope head fixing components; all the rope end pull rods are fixedly connected with the two sets of rope end fixing parts respectively in an equal or unequal mode; the loading force applying member is fixed to the shoulder pole beam.
15. The testing device for the elevator sheave of claim 14, wherein the loading force applying member comprises a loading force applying base plate, a loading force applying cover plate, a large ball head and two hexagon socket bolts; the loading force applying base plate is provided with a large ball head hole and two inner hexagonal bolt through holes, the loading force applying cover plate is provided with a first large ball head screw through hole and two first inner threaded holes, the loading force applying cover plate is arranged on the bottom surface of the loading force applying base plate, the large ball head hole and the two inner hexagonal bolt through holes in the loading force applying base plate are respectively aligned with the large ball head screw through hole and the two first inner threaded holes in the loading force applying cover plate one by one, and the two inner hexagonal bolts respectively penetrate through the two inner hexagonal bolt through holes in the loading force applying base plate and are screwed into the two first inner threaded holes in the loading force applying cover plate, so that the loading force applying cover plate is fixed on the bottom surface of the loading force applying base plate; the big ball head is provided with a big ball head part and a big ball head screw rod connected with the big ball head part, the big ball head part is arranged in a big ball head hole on the loading force applying bottom plate, and the big ball head screw rod of the big ball head penetrates through a first big ball head screw rod hole on the loading force applying cover plate and then is fixed on the shoulder pole beam and the shoulder pole beam cover plate.
16. The testing device for the elevator sheave of claim 15, wherein the weight of the loading force applying base plate is selected as desired, and the tension of the test rope is adjusted by selecting the weight of the loading force applying base plate.
17. The testing device for the elevator sheave according to claim 15, wherein a second large ball-end screw hole is formed in the shoulder pole beam, a second hollow threaded hole is formed in the shoulder pole beam cover plate, and the large ball-end screw of the large ball-end is inserted through the first large ball-end screw hole in the loading force applying cover plate, inserted through the second large ball-end screw hole in the shoulder pole beam, and then screwed into the second hollow threaded hole in the shoulder pole beam cover plate, so that the large ball-end screw of the large ball-end is fixedly connected to the shoulder pole beam and the shoulder pole beam cover plate.
18. The testing device for the elevator rope sheave according to claim 17, wherein each rope fastening member comprises a rope bottom plate, a rope cover plate, and at least one spherical sleeve, wherein the rope bottom plate is provided with at least one spherical hole, the rope cover plate is provided with a spherical sleeve through hole, the spherical sleeve has a spherical head portion and a cylindrical portion, and the spherical sleeve is internally provided with a rope through hole; the rope end bottom plate is fixed on the bottom surface of the rope end bottom plate, the spherical hole in the rope end bottom plate is aligned with the spherical lantern ring through hole in the rope end cover plate, the spherical head of the spherical lantern ring is arranged in the spherical hole, the columnar part of the spherical lantern ring is inserted into the spherical lantern ring through hole in the rope end cover plate, and the rope end pull rod penetrates through the corresponding spherical hole, the rope end through hole and the spherical lantern ring through hole and then is locked, so that the rope end bottom plate, the rope end cover plate and the spherical lantern ring are fixed together.
19. The testing device for the elevator rope sheave of claim 18, wherein a rope end pull rod thread section is provided at a lower portion of the rope end pull rod, and the rope end pull rod thread section is locked by a pull rod nut screwed on the rope end pull rod thread section after passing through the corresponding spherical hole, rope end through hole and spherical collar through hole.
20. The testing device for the elevator sheave according to claim 13, wherein the loading force applying member comprises a rope hitch plate, loading springs; a second riveting pull rod is anchored at the other end of the test rope connected with the loading force applying component, one end of the second riveting pull rod is provided with a clamping point for preventing rotation during fastening, and the other end of the first riveting pull rod is provided with a thread; the rope hitch plate is fixed at the other end of the pair of cross beams, a plurality of riveting pull rod through holes are formed in the rope hitch plate, one end, provided with threads, of the second riveting pull rod penetrates through the corresponding riveting pull rod through holes in the rope hitch plate and the corresponding loading springs, and then the rope hitch plate is locked and attached through at least one riveting pull rod nut screwed on the threads of the second riveting pull rod, and the compression degree of the loading springs can be adjusted through adjusting the riveting pull rod nuts so as to adjust the tension of the test rope; one end of the loading spring is in contact with the rope hitch plate, and the other end of the loading spring is in contact with the riveting pull rod nut.
21. The testing device for the elevator sheave according to claim 20, wherein the loading force applying unit further comprises a plurality of upper spring cover plates and a plurality of lower spring cover plates, each upper spring cover plate and each lower spring cover plate are respectively fitted over both ends of each loading spring, one end of the second riveting tension rod having a screw thread is passed through a corresponding riveting tension rod piercing hole of the rope hitch plate, an inner hole of the corresponding upper spring cover plate, the corresponding loading spring, and an inner hole of the corresponding lower spring cover plate, and then locked by at least one riveting tension rod nut screwed on the screw thread of the second riveting tension rod, one end of the upper spring cover plate is in contact with the rope hitch plate, and the upper spring cover plate is in contact with the riveting tension rod nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220499092.2U CN216978629U (en) | 2022-03-09 | 2022-03-09 | Elevator is testing arrangement for rope sheave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220499092.2U CN216978629U (en) | 2022-03-09 | 2022-03-09 | Elevator is testing arrangement for rope sheave |
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| Publication Number | Publication Date |
|---|---|
| CN216978629U true CN216978629U (en) | 2022-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220499092.2U Active CN216978629U (en) | 2022-03-09 | 2022-03-09 | Elevator is testing arrangement for rope sheave |
Country Status (1)
| Country | Link |
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| CN (1) | CN216978629U (en) |
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2022
- 2022-03-09 CN CN202220499092.2U patent/CN216978629U/en active Active
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