CN104155186B - Hoisting sling loading test device and test method using same - Google Patents
Hoisting sling loading test device and test method using same Download PDFInfo
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- CN104155186B CN104155186B CN201410388500.7A CN201410388500A CN104155186B CN 104155186 B CN104155186 B CN 104155186B CN 201410388500 A CN201410388500 A CN 201410388500A CN 104155186 B CN104155186 B CN 104155186B
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- suspender
- wire rope
- fixed pulley
- steel wire
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- 238000012360 testing method Methods 0.000 title claims abstract description 61
- 238000010998 test method Methods 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 41
- 239000010959 steel Substances 0.000 claims abstract description 41
- 238000003556 assay Methods 0.000 claims description 16
- 238000005259 measurement Methods 0.000 claims description 13
- 230000009194 climbing Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000004804 winding Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
Abstract
The invention provides a hoisting sling loading test device and a test method using the test device, wherein a lifting device drives a sling body of a sling to be tested, which is fixedly arranged on an upper cross beam, to ascend along the vertical direction so as to load a steel wire rope wound on a fixed pulley fixedly arranged on an upper pulley of the sling to be tested and a fixed pulley mounting seat of a supporting underframe until a load measuring mechanism displays that the loading tension on the steel wire rope reaches a set value, and the loading test is completed. According to the loading test method for the lifting sling, the upper cross beam is driven by the jacking mechanism to ascend, so that the loading test of the whole sling can be completed, a heavy-load crawler crane is not needed, a large-size weight is not needed, the cost of the loading test can be effectively reduced, and the safety of the whole test process is high.
Description
Technical field
The present invention relates to a kind of hoisting sling load testing machine and use the test method of this assay device.
Background technology
Hoisting sling, before actual large-scale production, needs to carry out type approval test on testing stand, during type approval test, is arranged on corresponding crane by suspender to be tested, then the counterweight connecting correspondence test tonnage below suspender carries out load test.
Fig. 1 is the hoisting sling for lifting by crane steam generator in nuclear power plant, including suspender body 1 with around the circumferential uniform allotter 6 of suspender body 1, top sheave 2 it is rotatably equipped with respectively on each allotter 6, hoisting sling also include being positioned at below suspender body 1 for the lower sheave 3 supporting with top sheave 2, being wound with steel wire rope 5 between top sheave, lower sheave, the two ends of every steel wire rope 5 are respectively fixedly connected with and fix on seat 4 being positioned at the steel wire rope below suspender body.When needing the hoisting sling shown in Fig. 1 is carried out load test, owing to the design lifting capacity of hoisting sling is up to 1100t, need during test to use 1500t crawler crane to lift by crane hoisting sling, the counterweight of 1375t is connected to carry out load test below suspender, when specifically carrying out load test, as shown in Figure 2, lower sheave 3 and steel wire rope fix seat 4 be installed on testing stand and with testing stand synchronization lifting, lower sheave 3 herein is movable pulley, steel wire rope 5 is wrapped in top sheave 2, on lower sheave 3, again counterweight is placed on testing stand, by crawler crane hoisting sling body, complete the load test to suspender.
But above-mentioned utilization heavy duty crawler crane and counterweight carry out the method the most more difficulty of load test, the producer of the crawler crane first having big elevating capacity such as 1500t is less, crawler crane use cost is higher, and heavy weight counterweight is bulky, either the cost of self-control or lease is the highest, and then makes the experimentation cost of whole load test higher.
Summary of the invention
The present invention provides a kind of hoisting sling load testing machine, causes the relatively costly technical problem of load test to solve to need in prior art to use heavy duty crane and counterweight carrying out type approval test；Meanwhile, the present invention also provides for a kind of using above-mentioned assay device that hoisting sling is carried out the test method of load test.
The technical scheme of hoisting sling load testing machine provided by the present invention is: hoisting sling load testing machine, the entablature that is arranged on support underframe is supported including support underframe with by lifting body, entablature is driven can vertically be lifted by described lifting body, entablature is provided with the suspender mounting seat of the suspender body for fixedly mounting suspender to be tested, on support underframe, the lower section in described entablature is installed with fixed pulley mounting seat, fixed pulley mounting seat coordinates, for installing, the fixed pulley being wound around for wire rope of sling with the top sheave of suspender to be tested, described assay device also includes the load measurement mechanism on the every steel wire rope for being serially connected in suspender to be tested.
Described assay device also includes the fixed pulley being installed in described fixed pulley mounting seat.
Described fixed pulley has been evenly distributed multiple in same level.
Described lifting body is hydraulic climbing mechanism.
Described support underframe includes the middle standing pillar vertically extended and is arranged in the ring frame of middle standing pillar outer circumferential, middle standing pillar and ring frame are respectively provided with and are pressed in ground support bottom surface for top, it is installed with for the intermediate draw bar by both fixing assemblings between middle standing pillar and ring frame, intermediate draw bar is uniform around middle standing pillar circumference, described entablature supports the top being arranged on middle standing pillar by lifting body, and shown fixed pulley is distributed on described annular frame around circumference.
Described intermediate draw bar includes being positioned at the girt of lower section and vertical brace above.
Seat fixed by the steel wire rope of the fag end being installed with the every steel wire rope for fixing described suspender to be tested on described support underframe, and described load measurement mechanism is the pulling force sensor between the fag end being serially connected in described steel wire rope reservation and corresponding steel wire rope.
The technical scheme of the hoisting sling load test method of the above-mentioned assay device of use provided by the present invention is: driven the suspender body of the suspender to be tested being installed on entablature vertically to rise by jacking apparatus, load with the steel wire rope on the fixed pulley that is installed with in the fixed pulley mounting seat to the top sheave and support underframe that are wrapped in suspender to be tested, until the loading tensile on load measurement mechanism display steel wire rope reaches setting value, complete load test.
The invention has the beneficial effects as follows: hoisting sling load testing machine provided by the present invention is in use, the suspender body of suspender to be tested is fixedly mounted in suspender mounting seat, wirerope-winding on suspender to be tested is on the top sheave of suspender body and the fixed pulley of assay device, entablature is driven to rise with suspender body with tense wire rope by lifting body, so steel wire rope can be loaded, by the load on load measurement mechanism measuring steel wire rope, until reaching to set numerical value, complete load test.Loading procedure need not use heavy duty crawler crane, it is not required that the counterweight that volume is bigger, it is only necessary to lifting body drives entablature to rise the load test that can complete whole suspender, and experimentation cost is relatively low, and meanwhile, safety is the highest.
Hoisting sling load test method provided by the present invention is driven entablature to rise the load test that can complete whole suspender by lifting body, need not use heavy duty crawler crane, also without the counterweight that volume is bigger, can effectively reduce the cost of load test, the safety of whole process of the test is the highest.
Further, can fixed fixed pulley in the fixed pulley mounting seat of support underframe as required, so so that this assay device adapts to the load test of different types of suspender, expand the range of application of charger.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing a kind of nuclear power hoisting sling；
Fig. 2 is the wirerope-winding schematic diagram that suspender shown in Fig. 1 carries out on testing stand load test；
Fig. 3 is the structural representation of the embodiment of a kind of hoisting sling load testing machine provided by the present invention；
Use view when Fig. 4 is to use assay device shown in Fig. 3 that hoisting sling shown in Fig. 1 carries out load test.
Detailed description of the invention
As shown in Figure 3, Figure 4, a kind of embodiment of the assay device for hoisting sling as shown in Figure 1 being carried out load test, assay device in this embodiment is included support underframe and is supported the entablature 12 being arranged on support underframe by lifting body, entablature 12 is driven can vertically be lifted by described lifting body, lifting body herein is hydraulic climbing mechanism 11, and entablature 12 is provided with the suspender mounting seat of the suspender body 21 for fixedly mounting suspender to be tested.Support underframe in the present embodiment includes the middle standing pillar 13 vertically extended and the ring frame 16 being arranged in middle standing pillar outer circumferential, middle standing pillar 13 and ring frame 16 are respectively provided with and are pressed in ground support bottom surface for top, it is installed with for the intermediate draw bar by both fixing assemblings between middle standing pillar 13 and ring frame 16, intermediate draw bar is uniform around middle standing pillar circumference, intermediate draw bar herein includes being positioned at the girt of lower section and vertical brace 15 above, described entablature 12 supports the top being arranged on middle standing pillar 13 by hydraulic climbing mechanism.On support underframe, the lower section in described entablature is installed with fixed pulley mounting seat 19, fixed pulley mounting seat 19 is provided with fixed pulley 18, fixed pulley 18 is wound around for the steel wire rope 23 on suspender to be tested for coordinating with the top sheave 22 of suspender to be tested, and fixed pulley 18 is distributed on described annular frame 14 around circumference.Additionally, assay device also includes the load measurement mechanism 20 on the every steel wire rope 23 for being serially connected in suspender to be tested, seat 17 fixed by the steel wire rope of the fag end being installed with the every steel wire rope 23 for fixing described suspender to be tested on annular frame 14, and described load measurement mechanism is the pulling force sensor between the fag end being serially connected in described steel wire rope reservation 17 and corresponding steel wire rope 23.
During use, entablature 12 is driven vertically to rise by hydraulic jacking device 11, entablature 12 synchronizes to rise with the suspender body 21 of suspender to be tested and loads with the steel wire rope 23 on the fixed pulley 18 to the top sheave 22 and annular frame that are wrapped in suspender to be tested, until load measurement mechanism 20 shows that the loading tensile on steel wire rope 23 reaches setting value, complete load test.
Owing to the assay device in the present embodiment is for carrying out load test to suspender as shown in Figure 1, so, fixed pulley on annular frame needs consistent with the position of the lower sheave of suspender in Fig. 1 itself, the most just can ensure that the inclination angle after each wirerope-winding is consistent with the inclination angle of steel wire rope on actual suspender, it is ensured that the accuracy of suspender test.In other embodiments, the position of fixed pulley on annular frame according to the position of the lower sheave of suspender to be tested, can be set, to ensure the accuracy of suspender load test.
In the present embodiment, the fixed pulley mounting seat on support underframe is directly installed with fixed pulley, in other embodiments, it is also possible to do not include fixed pulley, only when needs carry out load test, fixed pulley is just installed in fixed pulley mounting seat to carry out load test.
In the present embodiment, intermediate draw bar make middle standing pillar be securely fitted in annular frame together with to form support underframe, intermediate draw bar can be effectively improved bulk strength and the rigidity of whole support underframe.And, owing to the lower sheave of suspender carrying out required in the present embodiment testing is around circumferentially distributed, so support underframe is provided with annular frame to arrange around circumferentially distributed fixed pulley, in other embodiments, if the rectangular distribution of the lower sheave of suspender to be tested or distribution triangular in shape, the under(-)chassis on support underframe can also rectangular or triangular in shape setting.
In the present embodiment, lifting body uses hydraulic climbing mechanism, is so easy to meet the loading demand of heavy load.In other embodiments, it would however also be possible to employ pneumatic jacking mechanism or electric jacking mechanism.
In the present embodiment, annular frame is provided with special steel wire rope fix seat and fix with the fag end realizing steel wire rope, in other embodiments, if the fag end of steel wire rope is directly anchored on the suspender body of suspender to be tested, no longer steel wire rope can be set on annular frame and fix seat.
In the present embodiment, load measurement mechanism uses pulling force sensor, in other embodiments, it would however also be possible to employ the measurement apparatus for measuring steel wire rope tension load commonly used in the prior art.
The present invention also provides for a kind of test method for hoisting sling carries out load test, this test method is: driven entablature vertically to rise by jacking apparatus, entablature synchronizes to rise with the suspender body of suspender to be tested, load with the steel wire rope on the fixed pulley that is installed with in the fixed pulley mounting seat to the top sheave and support underframe that are wrapped in suspender to be tested, until load measurement mechanism display steel wire rope loading tensile reaches setting value, complete load test.
When using above-mentioned test method that hoisting sling is carried out load test, due to by lifting body jacking entablature and suspender body so that steel wire rope is carried out pulling force loading, lifting body can be controlled slowly rise, steel wire rope is carried out Slow loading, whole process of the test is stable, impact momentum is little, and safety is high.
Claims (6)
- null1. hoisting sling load testing machine，It is characterized in that: include support underframe and supported the entablature being arranged on support underframe by lifting body，Entablature is driven can vertically be lifted by described lifting body，Entablature is provided with the suspender mounting seat of the suspender body for fixedly mounting suspender to be tested，On support underframe, the lower section in described entablature is installed with fixed pulley mounting seat，Fixed pulley mounting seat coordinates, for installing, the fixed pulley being wound around for wire rope of sling with the top sheave of suspender to be tested，Described assay device also includes the load measurement mechanism on the every steel wire rope for being serially connected in suspender to be tested，Described assay device also includes the fixed pulley being installed in described fixed pulley mounting seat,Described support underframe includes the middle standing pillar vertically extended and is arranged in the ring frame of middle standing pillar outer circumferential，Middle standing pillar and ring frame are respectively provided with and are pressed in ground support bottom surface for top，It is installed with between middle standing pillar and ring frame for the intermediate draw bar by both fixing assemblings，Intermediate draw bar is uniform around middle standing pillar circumference，Described entablature supports the top being arranged on middle standing pillar by lifting body，Described fixed pulley is distributed on described ring frame around circumference.
- Hoisting sling load testing machine the most according to claim 1, it is characterised in that: described fixed pulley has been evenly distributed multiple in same level.
- Hoisting sling load testing machine the most according to claim 1, it is characterised in that: described lifting body is hydraulic climbing mechanism.
- Hoisting sling load testing machine the most according to claim 1, it is characterised in that: described intermediate draw bar includes being positioned at the girt of lower section and vertical brace above.
- Hoisting sling load testing machine the most as claimed in any of claims 1 to 4, it is characterized in that: seat fixed by the steel wire rope of the fag end being installed with the every steel wire rope for fixing described suspender to be tested on described support underframe, described load measurement mechanism is to be serially connected in described steel wire rope to fix the pulling force sensor between the fag end of seat and corresponding steel wire rope.
- 6. use assay device as claimed in claim 1 that hoisting sling carries out the test method of load test, it is characterized in that: driven the suspender body of the suspender to be tested being installed on entablature vertically to rise by lifting body, load with the steel wire rope on the fixed pulley that is installed with in the fixed pulley mounting seat to the top sheave and support underframe that are wrapped in suspender to be tested, until the loading tensile on load measurement mechanism display steel wire rope reaches setting value, complete load test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410388500.7A CN104155186B (en) | 2014-08-08 | Hoisting sling loading test device and test method using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410388500.7A CN104155186B (en) | 2014-08-08 | Hoisting sling loading test device and test method using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104155186A CN104155186A (en) | 2014-11-19 |
| CN104155186B true CN104155186B (en) | 2017-01-04 |
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