CN114295402B - Winch type hoist test system - Google Patents
Winch type hoist test system Download PDFInfo
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- CN114295402B CN114295402B CN202111673915.5A CN202111673915A CN114295402B CN 114295402 B CN114295402 B CN 114295402B CN 202111673915 A CN202111673915 A CN 202111673915A CN 114295402 B CN114295402 B CN 114295402B
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- 238000012360 testing method Methods 0.000 title claims abstract description 121
- 238000004873 anchoring Methods 0.000 claims abstract description 40
- 230000003068 static effect Effects 0.000 claims description 70
- 230000000712 assembly Effects 0.000 claims description 20
- 238000000429 assembly Methods 0.000 claims description 20
- 238000009434 installation Methods 0.000 abstract description 5
- 230000006835 compression Effects 0.000 description 16
- 238000007906 compression Methods 0.000 description 16
- 238000010586 diagram Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
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Abstract
The invention relates to a winch hoist test system. The winch hoist test system comprises an installation seat, an anchoring piece and/or a counterweight piece, wherein the installation seat is used for fixedly installing a winch hoist and providing a movable space for the output end of the hoist, the anchoring piece is fixedly arranged below the installation seat and used for being pulled by the winch hoist, the counterweight piece is used for being connected with the output end of the winch hoist when the winch hoist test system is used, and the winch hoist test system further comprises a tension meter used for connecting the anchoring piece with the output end of the hoist or connecting the counterweight piece with the output end of the hoist. The hoisting hoist pulls the anchoring piece or the counterweight piece through the tension meter, the tension meter can measure the pulling force of the hoisting hoist, so that the load capacity of the hoisting hoist is obtained, and the pulling force of the hoisting hoist in different load states can be measured through the tension meter, so that various relevant performances of the hoisting hoist are obtained.
Description
Technical Field
The invention relates to a winch hoist test system.
Background
The hoist is an important permanent device in hydraulic engineering, and the quality of the hoist directly relates to the operation safety of the hydraulic engineering and the life and property safety of people. The existing hoist comprises a winch hoist, a hydraulic hoist, a screw hoist and the like, and the winch hoist needs to be subjected to static load state performance test, dynamic load state performance test, stress and deformation test detection of key parts under load conditions and the like before leaving a factory, so that the winch hoist can meet the use requirements.
When the existing hoist is tested and detected for various performances before leaving a factory, no-load test is usually carried out, the hoist is used for lifting and closing a gate under the condition of no water pressure, and various performances of the hoist are detected by measuring values such as the lifting force and lifting speed of the hoist and the strain of key parts of the hoist after operation.
When the hoist is equipped on a hydraulic engineering, the hoist is always in an inactive state in a long time, a gate of the hydraulic engineering is generally in a water storage state, the hoist is started to lift and close the gate only when flood discharge is needed, the hoist has large changes in factors such as the running environment and bearing load, the load capacity of the hoist cannot be determined only by carrying out no-load test on the hoist, and various performances of the hoist under different loads cannot be judged.
Disclosure of Invention
The invention aims to provide a winch hoist test system which can measure the load capacity of a winch hoist and perform simulation tests on the winch hoist in various load states.
In order to solve the technical problems, the first technical scheme of the winch hoist test system of the invention is as follows: the winch hoist test system comprises an installation seat, an anchor piece and/or a counterweight piece, wherein the installation seat is used for fixedly installing a winch hoist and providing a movable space for the output end of the hoist; the tension meter comprises two groups of connecting plate assemblies capable of relatively moving in the vertical direction, the connecting plate assemblies comprise two connecting arms and connecting seats for connecting the two connecting arms, the connecting seats of the connecting plate assemblies at the upper end are positioned below the connecting seats of the connecting plate assemblies at the lower end, and pressure sensors for measuring the pressure between the two groups of connecting plate assemblies are arranged between the connecting seats of the two groups of connecting plate assemblies; the connecting arm is a triangle connecting plate with a contracted waist, the connecting seat comprises an outer side pressing plate positioned outside the triangle connecting plate and a pin shaft for connecting the two outer side pressing plates and the triangle connecting plate, a hook hole is formed in the top end of the triangle connecting plate, and the pressure sensor is arranged between the outer side pressing plates of the two groups of connecting plate components.
The beneficial effect of this technical scheme lies in: the hoisting hoist pulls the anchoring piece or the counterweight piece through the tension meter, the tension meter can measure the pulling force of the hoisting hoist, so that the load capacity of the hoisting hoist is obtained, and the pulling force of the hoisting hoist in different load states can be measured through the tension meter, so that various relevant performances of the hoisting hoist are obtained. The pressure sensor is used for reading the pressure during the relative movement between the two groups of connecting plate assemblies, so that the load of the winch hoist is obtained, the pressure sensor is sensitive in response, and the reading value is accurate and reliable. The waist shrink of triangle-shaped connecting plate can play the effect of stepping down to the round pin axle when two sets of connecting plate subassemblies alternate, and the outside clamp plate of the bottom of triangle-shaped connecting plate makes the pressure that pressure sensor bore more even.
The second technical scheme of the winch hoist test system of the invention is as follows: on the basis of the first technical scheme of the winch hoist test system, a switching assembly is further connected between the tension meter and the anchoring piece or the counterweight piece. The switching subassembly plays the transitional effect between the tensiometer and the anchor, avoids the connection plate subassembly atress uneven because of the change of pulling direction when the tensiometer is directly connected with the anchor, can simulate the load state of hoist formula headstock gear under different states through changing different switching subassemblies simultaneously.
The third technical scheme of the winch hoist test system of the invention is as follows: on the basis of the second technical scheme of the winch hoist test system, the switching assembly comprises a connecting rod and a pressurizing device for connecting the connecting rod and the anchoring piece. The pressurizing device bears the pulling force of the winch hoist through the connecting rod, meanwhile, the connecting rod and the pressurizing device also play a role in force transmission connection, the pulling force of the winch hoist is transmitted to the anchoring piece, and the pressurizing device can be designed in various modes, so that the winch hoist test system can simulate working conditions of the winch hoist in various running states.
The fourth technical scheme of the winch hoist test system of the invention is as follows: on the basis of the third technical scheme of the winch hoist test system, the pressurizing device is a static load pressurizing device and comprises a static load pressurizing beam assembly connected with a connecting rod and an anchoring piece. The static load pressurizing beam component does not move along with the operation of the hoist and can be used for measuring the load capacity of the hoist in a static load state.
The fifth technical scheme of the winch hoist test system of the invention is as follows: on the basis of the second technical scheme of the winch hoist test system, the static load pressurizing beam assembly comprises a static load pressurizing beam, two ends of the static load pressurizing beam are respectively sleeved with a static load pull rod assembly, a jack is assembled between the top end of the static load pull rod assembly and the static load pressurizing beam in a jacking mode, and the bottom end of the static load pull rod assembly is connected with an anchoring piece. The jack between the static load pull rod assemblies and the static load compression beams at the two ends can enable the pulling force born by the static load compression beams to be more uniformly transferred to the anchoring piece, and meanwhile the jack can adjust the distance between the static load pull rod assemblies and the static load compression beams.
The sixth technical scheme of the winch hoist test system of the invention is as follows: on the basis of a fifth technical scheme of the winch hoist test system, the pressurizing device is a dynamic load pressurizing device and comprises a dynamic load hydraulic cylinder and a dynamic load pressurizing beam assembly which are sequentially connected, wherein a piston rod of the dynamic load hydraulic cylinder is connected with a connecting rod, and the dynamic load pressurizing beam assembly is respectively connected with the bottom of the dynamic load hydraulic cylinder and an anchoring piece. The piston rod of the dynamic load hydraulic cylinder of the dynamic load pressurizing device stretches along with the pulling of the winch hoist, so that the dynamic load state of the winch hoist when the gate is lifted is simulated, and the dynamic load pressurizing beam assembly can more uniformly transmit the pulling force to the anchoring piece.
The seventh technical scheme of the winch hoist test system of the invention is as follows: on the basis of a sixth technical scheme of the winch hoist test system, the movable load pressurizing beam assembly comprises a movable load pressurizing beam connected with the bottom of a movable load hydraulic cylinder, movable load pull rods are respectively sleeved at two ends of the movable load pressurizing beam, a short beam support is assembled between the top ends of the movable load pull rods and the pressurizing beam in a jacking mode, and the bottom ends of the movable load pull rods are connected with anchoring pieces. The short beam support connects the dynamic load pull rods into a whole, so that the stress intensity of the dynamic load pull rods is enhanced, and the dynamic load pull rods are sleeved at the two ends of the dynamic load pressurizing beam, so that the stress of the anchoring piece is uniform.
The eighth technical scheme of the winch hoist test system of the invention is as follows: on the basis of any one of the third to seventh technical schemes of the winch hoist test system, the switching assembly further comprises a balance beam connected with the corresponding ends of the tension meter and the connecting rod, hanging frames are sleeved at two ends of the balance beam, and connecting holes for being connected with the tension meter are formed in the hanging frames. The hangers at two ends of the balance beam are respectively connected with the tension meters, so that the two winch-type hoist can be tested simultaneously, and the balance beam enables the pulling force of the two winch-type hoist to be more uniformly transferred to the pull rod and then to the anchoring piece.
The ninth technical scheme of the winch hoist test system of the invention is as follows: on the basis of the eighth technical scheme of the winch hoist test system, the hanging frame comprises hanging plates and supporting seats, wherein the hanging plates are arranged at intervals, the supporting seats are connected with the bottoms of the hanging plates, lifting lugs are respectively arranged at the top ends of the hanging plates, the lifting lugs and the supporting seats form a frame-type structure which can be sleeved on the balance beam, the connecting holes are formed in the lifting lugs, and the matching holes are formed in the supporting seats. The hanger of frame nature structure has increased the area of contact between hanger and the compensating beam, makes the power transmission between hanger and the compensating beam more even stable, can adjust the distance between the hanger according to the interval between two hoist simultaneously.
The tenth technical scheme of the winch hoist test system of the invention is as follows: on the basis of the ninth technical scheme of the winch hoist test system, the supporting seat is rotatably provided with the rolling shaft which is connected with the hanging plate and can roll along the bottom of the balance beam. When the pulling forces of the two winch type opening and closing machines deviate, the rolling shafts can drive the hanging frame to slightly move on the balance beam to carry out self-balance correction.
The eleventh technical scheme of the winch hoist test system of the invention is as follows: on the basis of any one of the first to seventh technical schemes of the winch hoist test system, a foundation pit is arranged below the mounting seat, the anchoring piece is fixed at the bottom of the foundation pit, and the mounting seat is arranged on the ground above a space surrounded by the foundation pit. The anchor is fixed in the foundation ditch bottom, and the mount pad setting is subaerial in the foundation ditch top, utilizes the foundation ditch to reduce the height of mount pad, has omitted the material of mount pad, is the center of mount pad simultaneously and reduces, more safe and reliable.
The twelfth technical scheme of the winch hoist test system of the invention is as follows: on the basis of the eleventh technical scheme of the winch hoist test system, the mounting seat comprises a stand column and a platform arranged at the top end of the stand column, a guide rail is arranged on the platform, and a hoist support for mounting the winch hoist is slidably assembled on the guide rail. The guide rail enables the position of the hoist support on the platform to be adjustable, and the applicability of the mounting seat is improved.
The thirteenth technical scheme of the winch hoist test system of the invention is as follows: on the basis of the eleventh technical scheme of the winch hoist test system, the anchoring piece comprises a fixing part buried below the bottom of the foundation pit and a connecting flange positioned above the foundation pit, and a flange hole for connecting a tension meter is formed in the connecting flange. The flange hole of the connecting flange can be connected with the tension meter, and the use is simple and convenient.
The fourteenth technical scheme of the winch hoist test system of the invention is as follows: on the basis of any one of the first to seventh technical schemes of the winch hoist test system, the winch hoist test system further comprises a control system for controlling the action of the winch hoist test system, a power system for providing power for the winch hoist test system and a pipeline system.
Drawings
FIG. 1 is a schematic diagram of an embodiment 1 of a hoist test system according to the present invention;
FIG. 2 is a side view of the hoist test system of FIG. 1;
FIG. 3 is a partial schematic view of the mount of embodiment 1 of the hoist test system of the present invention;
FIG. 4 is a side view of the mount of FIG. 3;
FIG. 5 is a schematic diagram of the structure of the tension meter of example 1 of the hoist test system of the present invention;
FIG. 6 is a cross-sectional view of the tension meter of FIG. 5;
fig. 7 is a schematic structural diagram of a balance beam and a connecting rod of embodiment 1 of the hoist test system of the present invention;
FIG. 8 is a schematic view of the structure of the static load compression beam assembly of example 1 of the hoist test system of the present invention;
FIG. 9 is a side view of the static load compression beam assembly of FIG. 8;
FIG. 10 is a schematic view of a dynamic load compression beam assembly of example 1 of a hoist test system of the present invention;
FIG. 11 is a side view of the live load compression beam assembly of FIG. 8;
FIG. 12 is a schematic view of the structure of the anchor of example 1 of the hoist test system of the present invention;
FIG. 13 is a side view of the anchor of FIG. 12;
Fig. 14 is a schematic structural view of a movable cross beam of a hoist mount of the hoist test system of the present invention;
fig. 15 is a schematic structural view of a fixing base of a hoist mount of the hoist test system of embodiment 1 of the present invention;
FIG. 16 is a schematic view of the counterweight of example 1 of the hoist test system of the present invention;
FIG. 17 is a side view of the weight of FIG. 16;
FIG. 18 is a single-lifting-point static load test schematic diagram of example 1 of the hoist test system of the present invention;
FIG. 19 is a schematic diagram of a double-hoisting-point static load test of example 1 of the hoist test system of the present invention;
FIG. 20 is a single-lifting-point dynamic load test schematic diagram of example 1 of the hoist test system of the present invention;
FIG. 21 is a diagram of a double-lifting-point dynamic load test of example 1 of the hoist test system of the present invention;
FIG. 22 is a schematic diagram of a single-hoist quick door closing test of example 1 of the hoist test system of the present invention;
fig. 23 is a schematic diagram of a double-hanging-point quick-closing test of embodiment 1 of the hoist test system of the present invention.
Each mark in the figure: 1. a mounting base; 2. a connecting rod; 3. a balance beam; 4. a static load compression beam assembly; 5. a foundation pit; 6. an anchor; 7. a dynamic load pressurized beam assembly; 8. a tension meter; 9. a weight member; 10. a dynamic load hydraulic cylinder; 11. a fixing seat; 12. a support beam; 13. a platform; 14. a column; 15. a movable cross beam; 31. a hanging bracket; 41. a static load connecting rod; 42. a connecting beam; 43. a jack; 44. static load pressurizing beam; 61. a connecting flange; 71. a short beam support; 72. a dynamic load pull rod; 73. a dynamic load pressurizing beam; 81. a triangular connecting plate; 82. an outer platen; 83. a pressure sensor; 91. a hanging beam; 92. a weight box; 141. a support leg; 142. a ground pile; 143. a diagonal support; 144. a guide rail; 145. a crown block beam; 146. crown block track; 311. a support base; 312. a hanger plate; 313. lifting lugs.
Detailed Description
The embodiment 1 of the winch hoist test system disclosed by the invention is shown in fig. 1-23, and comprises a mounting seat 1 which is arranged on the ground and used for mounting a winch hoist, wherein a rectangular foundation pit 5 is arranged on the ground, an anchor 6 is fixedly arranged at the bottom of the foundation pit 5, the mounting seat 1 is arranged on the ground above a space surrounded by the foundation pit 5, and the relative positions of the anchor 6 and the mounting seat 1 are kept fixed. The foundation pit 5 is rectangular, the depth is between 5 and 20 meters, the anchoring piece 6 is of a box beam structure, the box beam structure comprises a fixed part buried under the ground and two rows of eight connecting flanges 61 positioned above the ground, and the connecting flanges 61 can be hooked and matched with a tension meter 8 for measuring the pulling force of the winch hoist.
The mounting seat 1 comprises a vertical column 14 vertically arranged on the ground and a platform 13 fixed at the top end of the vertical column 14. The stand 14 is two sets of and sets up along the length direction of foundation ditch 5 of rectangle, and stand 14 is including burying underground pile 142 and passing through bolted connection's landing leg 141 with pile 142, and landing leg 141 passes through the bearing 143 with platform 13 to be connected in order to increase the structural strength of mount pad 1, is provided with overhead traveling crane roof beam 145 in the inboard level in middle section of landing leg 141, is equipped with overhead traveling crane track 146 on the overhead traveling crane roof beam 145, and overhead traveling crane roof beam 145 and overhead traveling crane track 146 are used for installing the overhead traveling crane to the convenience is transferred the work piece. The platform 13 is rectangular and comprises two main beams arranged along the length direction of the foundation pit 5 and two auxiliary beams arranged along the width direction of the foundation pit 5, wherein guide rails 144 are respectively arranged on the two main beams, and hoist supports are slidably assembled on the guide rails 144; the hoist support comprises a movable cross beam 15 movably assembled with a guide rail 144 and fixed seats 11 arranged on the movable cross beam 15, a buckle with a groove is arranged at the bottom end of the movable cross beam 15, the buckle is matched with the guide rail 144 to enable the movable cross beam 15 to slide on the guide rail 144, the movable cross beam 15 is of a box-shaped beam structure arranged along the width direction of a foundation pit, at least two fixed seats 11 are arranged on each movable cross beam 15, the top ends of the fixed seats 11 are top plates with grooves, and the grooves can accommodate bolts with corresponding sizes and are used for fixing a winch hoist; when the weight of the hoist is large, the supporting beam 12 can be fixedly installed between two adjacent fixed seats 11 along the length direction of the foundation pit, so that the adjacent fixed seats 11 are integrated, the load capacity of the fixed seats is increased, the supporting beam 12 is of a box-type beam structure, and the top end of the supporting beam 12 is provided with a groove for fixing the hoist.
One end of the tension meter 8 is used for being connected with the output end of the winch hoist, and the other corresponding end is used for being hooked and matched with the switching assembly. The tension meter 8 comprises two groups of connecting plate assemblies capable of relatively moving in the vertical direction, each connecting plate assembly comprises two triangular connecting plates 81 arranged at intervals, the two triangular connecting plates form a connecting arm, the top ends of the triangular connecting plates 81 are provided with hook holes, the hook holes can be used for being connected with the output end of a winch hoist, the triangular connecting plates 81 are of a waist contraction type structure, the two triangular connecting plates 81 are connected through a connecting seat, and the connecting seat comprises an outer side pressing plate 82 positioned at the outer side of the bottom end of the triangular connecting plate 81 and a pin shaft for connecting the two outer side pressing plates 82 and the triangular connecting plates 81. The connecting seat of the connecting plate assembly at the upper end is positioned below the connecting seat of the connecting plate assembly at the lower end, the waist contracted by the triangular connecting plate 81 gives way to the connecting pin shaft and plays a limiting role on the pin shaft, so that the two groups of connecting plate assemblies axially and relatively move in the space of the contracted waist, the pressure sensor 83 is assembled between the outer side pressing plates 81 of the two groups of connecting plate assemblies in a jacking mode, the pressure sensor 82 can measure the axial pressure between the two groups of connecting plate assemblies, and the pressure is the load of the winch hoist.
The tension meter 8 and the anchoring piece or the counterweight piece 9 can be directly connected, or can be connected through a switching assembly. The adapter assembly comprises a connecting rod 2 and a pressurizing means connecting the connecting rod 2 with an anchor 6. The connecting rod 2 is of a metal plate type welding structure, and both ends of the connecting rod are provided with pin shafts. The pressurizing device can be a static load pressurizing device and is used for a static load opening and closing test of the winch hoist; the device can also be a dynamic load pressurizing device for a winch type headstock gear dynamic load opening and closing test.
The static load pressurizing device comprises a static load pressurizing beam assembly 4, one end of the static load pressurizing beam assembly is connected with the connecting plate 2, and the other end of the static load pressurizing beam assembly is connected with the anchoring piece 6. The static load compression beam assembly 4 comprises a static load compression beam 44, a flange is arranged at the top of the middle section of the static load compression beam and can be connected with the connecting plate 2, static load connecting rod assemblies are respectively sleeved at two ends of the static load compression beam 44, each static load connecting rod assembly comprises two static load connecting rods 41 positioned at two sides of the static load compression beam 44 and a connecting beam 42 connected with the static load connecting rods 41, the static load connecting rods 41 and the connecting beams 42 form a box-shaped structure to be sleeved on the static load compression beam, connecting holes are formed in the bottom ends of the static load connecting rods 41 and are used for being connected with connecting flanges 61 of the anchoring pieces 6, and jacks 43 are assembled between the static load compression beam 44 and the connecting beams 42 in a jacking mode.
The dynamic load pressurizing device comprises a dynamic load hydraulic cylinder 10 and a dynamic load pressurizing beam assembly 7 which are sequentially connected, a piston rod of the dynamic load hydraulic cylinder 10 is connected with a connecting plate 2, the bottom of the piston rod is connected with the dynamic load pressurizing beam assembly 7, the dynamic load pressurizing beam assembly 7 comprises a dynamic load pressurizing beam 73, a flange is arranged at the top end of the middle section of the dynamic load pressurizing beam, the flange can be connected with the bottom of the dynamic load hydraulic cylinder 10, two dynamic load pull rods 72 are respectively sleeved at two ends of the dynamic load pressurizing beam 73, the top ends of the two dynamic load pull rods 72 are connected through a short beam support 71, the bottom ends of the short beam support 71 are in pressing fit with the dynamic load pressurizing beam 73, the lower ends of the dynamic load pull rods 72 are connected with a connecting flange 61 of an anchoring piece 6, and the short beam support 71 connects the dynamic load pull rods 72 into a whole, so that the load capacity of the dynamic load pull rods 72 is enhanced.
When the double-lifting-point test is carried out on the winch hoist, the switching assembly further comprises a balance beam 3, and the two ends of the balance beam 3 are respectively sleeved with a hanging bracket 31. The balance beam 3 is of a box-shaped beam structure, a through hole is formed in the lower portion of the middle section of the balance beam 3 and can be used for being connected with the connecting rod 2, and fixing holes are formed in the side wall of the balance beam 3 in the length direction at intervals; the hanger 31 includes two sets of hanger plates 312 that the interval set up, the bottom of hanger plate 312 is passed through supporting seat 311 and is connected, the top of hanger plate 312 is provided with lug 313 respectively, lug 313, hanger plate 312 and supporting seat 311 form frame structure so that hanger 31 can cup joint on compensating beam 3, the supporting seat 311 internal rotation of hanger 31 is equipped with the roller bearing, the roller bearing can roll along the bottom of compensating beam in the supporting seat, when the pulling force of two hoist switches appears the deviation, the roller bearing can drive the hanger and slightly remove on compensating beam and carry out self-balancing correction, lug 31 on the hanger 31 is used for being connected with the tension gauge 8.
When carrying out quick door closing test to hoist formula headstock gear, this hoist formula headstock gear test system still includes weight 9, weight can provide gravity load for the quick door closing test of hoist formula headstock gear, weight includes hanging beam 91 and weight box 92, the both ends of hanging beam 91 are equipped with the hook structure respectively in order to connect weight box 92, the middle section of hanging beam 91 is provided with and lifts by crane the structure and be used for being connected with other connecting pieces, weight box 92 is the box structure that forms through the girder steel welding, can place the weight of different weight in the weight box 92 and realize the door closure of specific gravity.
The winch hoist test system also comprises a control system, a power system and a pipeline system, so that the winch hoist test system can automatically test the winch hoist, and manpower and material resources are saved.
The hoist test system can carry out no-load test, static load test, dynamic load test and quick door closing test on the hoist, wherein the static load test, the dynamic load test and the quick door closing test can also carry out single-lifting-point test and double-lifting-point test respectively.
When the idle test is carried out, the distance between the movable cross beam and the track of the platform is adjusted according to the size of the winch hoist, the plurality of winch hoists are respectively placed on the fixed seat, the position of the movable cross beam is locked by the fixing device, and the power supply of the winch hoist is closed at the moment to carry out the idle test.
When a single-lifting-point static load test is carried out, as shown in fig. 18, the distance between the movable cross beam and the track of the platform is adjusted according to the size of the winch hoist, a supporting beam is assembled above the fixed seat, the single winch hoist is placed on the supporting beam on the fixed seat above the movable cross beam, the output end of the winch hoist is sequentially connected with the tension meter, the connecting rod, the static load pressurizing beam component and the anchoring piece, and the supporting force of the jack is adjusted to enable no gap to exist between the static load pressurizing beam and the connecting beam. Closing the power supply of the hoist, transmitting the opening and closing force of the hoist to the jack through the tension meter, the connecting rod and the static load pressurizing beam assembly, finally bearing the force by the anchoring piece, the pressure measured by the pressure sensor of the tension meter is the opening and closing force of the winch hoist, and the single-lifting-point static load test can be performed on the winch hoist by adjusting the opening and closing force of the winch hoist.
When the double-lifting-point static load test is carried out, as shown in fig. 19, the positions of the movable cross beams are adjusted to fix the two winch-type hoists on the supporting beam of the fixed seat respectively, the two winch-type hoists are symmetrically arranged, the center line is overlapped with the center line of the rivet piece, the two groups of tension meters are respectively connected with the output ends of the two winch-type hoists, meanwhile, the other ends of the two groups of tension meters are respectively connected with the hanging brackets at the two ends of the balance beam, one end of the connecting rod is connected with the through hole below the middle section of the balance beam, the other end of the connecting rod is connected with the static load pressurizing beam assembly, the other connecting mode is the same as the connecting mode during the single-lifting-point static load test, the power supply of the two winch-type hoists is closed, the opening and closing forces of the two winch-type hoists are transmitted to the jack through the tension meters, the hanging bracket, the balance beam and the connecting rod are finally born by the anchoring piece, and the pressures measured by the pressure sensors on the two groups of the tension meters are the opening and closing forces of the two winch-type hoists respectively, so that the double-lifting-point static load test can be carried out on the winch-type hoist.
When a single-lifting-point dynamic load test is carried out, as shown in fig. 20, the whole connection mode of the winch hoist test system is the same as that of the single-lifting-point static load test, the difference is that the static load pressurizing device is changed into a dynamic load pressurizing device, the corresponding ends of the connecting rods are connected with piston rods of dynamic load pressurizing cylinders, the bottoms of the dynamic load pressurizing cylinders are connected with flanges of the middle sections of dynamic load pressurizing beams, the dynamic load connecting rods at the two ends of the dynamic load pressurizing beams are connected with anchoring pieces, the dynamic load pressurizing beams are contacted with the bottom ends of short beam supports at the upper ends of the dynamic load pull rods, and the other connection modes are the same as that of the single-lifting-point static load test, so that the description is not repeated. And closing a power supply of the winch hoist, wherein the hoist opening and closing force is finally transmitted to the anchoring piece through a tension meter, a connecting rod, a dynamic load hydraulic cylinder, a short beam support and a dynamic load connecting rod, and when the piston rods of the dynamic load hydraulic cylinders are pulled out to different lengths, the pressure measured by the pressure sensor is the hoist opening and closing force of the winch hoist, so that a single-lifting-point dynamic load test is performed on the winch hoist.
When the double-lifting-point dynamic load test is performed, as shown in fig. 21, the static load pressurizing device in the double-lifting-point static load test is changed into the dynamic load pressurizing device, the connecting mode is the same as that of the dynamic load pressurizing device in the single-lifting-point dynamic load test, the description is not repeated here, and the pressure measured by the pressure sensor is the opening and closing force of the hoist when the piston rods of the dynamic load hydraulic cylinders are stretched for different lengths, so that the double-lifting-point dynamic load test is performed on the hoist.
When a single-lifting-point quick door closing test is carried out, as shown in fig. 22, the distance between the movable cross beam and the guide rail is adjusted according to the size of the winch hoist, the single winch hoist is placed on the support beam of the fixed seat, the output end of the winch hoist is connected with the tension meter, the other end of the tension meter is connected with the connecting rod, the weight piece is hung below the connecting rod, and weights with different weights are configured in the weight box according to test loads. At the moment, the power supply of the winch hoist is closed, the hoist power pulls up the counterweight to a certain height through the tension meter and the pull rod, then the power supply is disconnected, and the working characteristics of the single winch hoist, namely the rapid door closing, can be tested by utilizing the self weight falling of the counterweight.
When the double-lifting-point quick door closing test is carried out, as shown in fig. 23, two winch-type openers are symmetrically arranged on the supporting beam above the fixed seat, the output ends of the two winch-type openers are respectively connected with a group of tension meters, the other ends of the tension meters are respectively connected with hanging brackets at two ends of the balance beam, one end of the connecting rod is connected with a through hole below the middle section of the balance beam, and the other end of the connecting rod is connected with the balance weight, so that the center lines of the two winch-type openers are overlapped with the center line of the balance weight, and balance weights with different weights are configured in the balance weight box according to test loads. At the moment, two hoist power supplies are closed, the hoist power pulls up the counterweight to a certain height through the tension meter and the pull rod, then the power supply is disconnected, and the working characteristics of the two hoist rapid door closing can be tested by utilizing the self weight falling of the counterweight.
In other embodiments of the hoist testing system, the static load compression beam assembly may be omitted, and the tension gauge may be directly connected to the anchor for single-point or double-point static load testing; the dynamic load pressurizing beam assembly can be omitted, and the dynamic load hydraulic cylinder is directly connected with the anchoring piece to perform a single-lifting-point dynamic load test or a double-lifting-point dynamic load test; the foundation pit can be omitted, the anchoring piece is directly fixed on the ground, and the winch hoist test is completed through the heightened mounting seat.
Claims (8)
1. A winch hoist test system is characterized in that: the device comprises a mounting seat, an anchoring piece and/or a counterweight piece, wherein the mounting seat is used for fixedly mounting the winch hoist and providing a movable space for the output end of the hoist, the anchoring piece is fixedly arranged below the mounting seat and used for pulling the winch hoist, the counterweight piece is used for being connected with the output end of the winch hoist when the device is used, and the winch hoist test system further comprises a tension meter used for connecting the anchoring piece with the output end of the hoist or connecting the counterweight piece with the output end of the hoist; the tension meter comprises two groups of connecting plate assemblies capable of relatively moving in the vertical direction, the connecting plate assemblies comprise two connecting arms and connecting seats for connecting the two connecting arms, the connecting seats of the connecting plate assemblies at the upper end are positioned below the connecting seats of the connecting plate assemblies at the lower end, and pressure sensors for measuring the pressure between the two groups of connecting plate assemblies are arranged between the connecting seats of the two groups of connecting plate assemblies; the connecting arm is a triangle connecting plate with a contracted waist, the connecting seat comprises an outer side pressing plate positioned outside the triangle connecting plate and a pin shaft for connecting the two outer side pressing plates and the triangle connecting plate, a hook hole is formed in the top end of the triangle connecting plate, and the pressure sensor is arranged between the outer side pressing plates of the two groups of connecting plate components.
2. The hoist test system of claim 1, characterized in that: and a switching assembly is further connected between the tension meter and the anchoring piece or the counterweight piece, and comprises a connecting rod and a pressurizing device for connecting the connecting rod and the anchoring piece.
3. The hoist test system of claim 2, characterized in that: the pressurizing device is a static load pressurizing device and comprises a static load pressurizing beam assembly connected with the connecting rod and the anchoring piece.
4. The hoist test system of claim 3, characterized in that: the static load pressurizing beam assembly comprises a static load pressurizing beam, the two ends of the static load pressurizing beam are respectively sleeved with a static load pull rod assembly, a jack is assembled between the top end of the static load pull rod assembly and the static load pressurizing beam in a jacking mode, and the bottom end of the static load pull rod assembly is connected with the anchoring piece.
5. The hoist test system of claim 2, characterized in that: the pressurizing device is a dynamic load pressurizing device and comprises a dynamic load hydraulic cylinder and a dynamic load pressurizing beam assembly which are sequentially connected, wherein a piston rod of the dynamic load hydraulic cylinder is connected with a connecting rod, and the dynamic load pressurizing beam assembly is respectively connected with the bottom of the dynamic load hydraulic cylinder and an anchoring piece.
6. The hoist test system of claim 5, characterized in that: the movable load pressurizing beam assembly comprises a movable load pressurizing beam connected with the bottom of the movable load hydraulic cylinder, movable load pull rods are sleeved at two ends of the movable load pressurizing beam respectively, a short beam support is assembled between the top ends of the movable load pull rods and the pressurizing beam in a jacking mode, and the bottom ends of the movable load pull rods are connected with the anchoring pieces.
7. The hoist test system of any one of claims 2-6, characterized in that: the switching assembly further comprises a balance beam connected with the corresponding ends of the tension meter and the connecting rod, hanging frames are sleeved at the two ends of the balance beam, and connecting holes used for being connected with the tension meter are formed in the hanging frames.
8. The hoist test system of any one of claims 1-6, characterized in that: the foundation pit is arranged below the mounting seat, the anchoring piece is fixed at the bottom of the foundation pit, and the mounting seat is arranged on the ground above a space surrounded by the foundation pit.
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