CN116678607B - Crane pulley assembly security performance detection device - Google Patents
Crane pulley assembly security performance detection device Download PDFInfo
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- CN116678607B CN116678607B CN202310969172.9A CN202310969172A CN116678607B CN 116678607 B CN116678607 B CN 116678607B CN 202310969172 A CN202310969172 A CN 202310969172A CN 116678607 B CN116678607 B CN 116678607B
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- 238000001514 detection method Methods 0.000 title claims abstract description 78
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000005299 abrasion Methods 0.000 claims description 2
- 230000002146 bilateral effect Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000007689 inspection Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/068—Special adaptations of indicating or recording means with optical indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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- Jib Cranes (AREA)
Abstract
The invention relates to the technical field of reworking pulley detection, in particular to a crane pulley assembly safety performance detection device, which comprises a bottom plate, wherein an L-shaped support frame is arranged at the upper end of the bottom plate, and inclined planes are arranged at the corners of the support frame. The existing mode is to install and position the pulley assembly, then install the load sensor between pulley assembly and lifting rope, make the pulley assembly bear the load under the actual working condition through loading the lifting rope, this method easy to operate, and can detect the amount of the pulley assembly load in real time, but can not reflect the rotation condition of the pulley assembly under the corresponding load, thus has reduced the detection effect of the pulley assembly. The detection unit that adopts can effectually detect the circumstances of whether pulley assembly rotates or skew, has reduced the required dynamics of inspection personnel's observation to the effect of detection is good, can reachs the testing result fast.
Description
Technical Field
The invention relates to the technical field of reworking pulley detection, in particular to a crane pulley assembly safety performance detection device.
Background
The crane pulley assembly is an important component of a crane, has the function of changing the movement direction of an object, enables the crane to transport and operate in all directions, and can ascend, descend, move left and right and the like the object along different paths through the pulley assembly.
The pulley assembly is required to detect safety performances such as load capacity, wear resistance and the like before production and delivery of the pulley assembly, the pulley assembly comprises a single pulley and a plurality of pulleys, when the single pulley is detected, the pulley assembly is installed and positioned in the existing mode, then a load sensor is installed between the pulley assembly and a lifting rope, the pulley assembly is enabled to bear the load under the actual working condition by loading the lifting rope, the load sensor can be used for monitoring the stress condition of the pulley assembly in real time, the method is easy to operate, the load of the pulley assembly can be detected in real time, and the detection accuracy is high.
However, in the method, only the load condition of the pulley assembly can be detected, and the rotation condition of the pulley assembly under the corresponding load cannot be reflected, so that the detection effect of the pulley assembly is reduced, and the pulley assembly is easy to damage in a large range.
Disclosure of Invention
Based on this, it is necessary to provide a crane pulley assembly safety performance detection device, which aims to solve the problem generated when the existing equipment carries out safety detection on the pulley assembly.
In order to achieve the above purpose, the present invention is implemented by adopting the following technical scheme: a crane pulley assembly security performance detection device, comprising: the bottom plate, the support frame that is the L type is installed to the bottom plate upper end, and support frame corner is provided with the inclined plane.
And the installation unit is vertically installed on the inclined plane and used for clamping the limiting pulley assembly.
The detection unit is connected to the installation unit, the detection unit comprises an annular sliding rail arranged in the installation unit, a rubber ring is paved on the inner annular surface of the annular sliding rail, an annular sliding groove is formed in the outer annular surface of the annular sliding rail, the annular sliding groove is rotationally connected with a rotating ring, a detection part is installed on the outer annular surface of the rotating ring, a dial is installed on the outer annular surface of the rotating ring close to the rear end, and a positioning hole is formed in the front end of the rotating ring close to the upper side.
And the lifting unit is installed on the support frame and comprises an adjusting component installed on the support frame, a connecting block is installed at the upper end of the adjusting component, and a hydraulic cylinder is installed on the connecting block in a penetrating manner.
The weight increasing unit is installed at the upper end of the bottom plate and comprises a supporting table installed at the upper end of the bottom plate, rectangular plates are installed at the upper ends of four corners of the supporting table, a plurality of weight increasing parts are placed at the upper end of the supporting table from top to bottom, a steel wire rope is installed at the upper end of the weight increasing part located at the uppermost side, and the other end of the steel wire rope is fixedly connected with the hydraulic cylinder.
According to the embodiment of the invention, the mounting unit comprises a U-shaped frame with an upward opening and mounted on the inclined plane, the upper ends of the front side wall and the rear side wall of the U-shaped frame are respectively provided with a first half ring plate, the upper end of the first half ring plate is provided with a second half ring plate, the outer ring surfaces of the first half ring plate and the second half ring plate are respectively provided with two auxiliary plates in bilateral symmetry, the lower ends of the auxiliary plates positioned on the upper side are provided with a plug-in rod, the lower ends of the plug-in rod penetrate through the auxiliary plates positioned on the lower side, and the two auxiliary plates positioned on the same side are sleeved with rectangular frames together.
According to the embodiment of the invention, the detection component comprises a detection rod arranged on the outer ring surface of the rotating ring, the detection rod is of an L-shaped structure, a sliding counter bore is formed in the rear end of the horizontal section of the detection rod, a sliding block is connected in a sliding manner in the sliding counter bore, a magnet is arranged at the rear end of the sliding block, a movable plate is arranged at the front end of the sliding block, a connecting spring is arranged between the front end of the movable plate and the wall of the sliding counter bore, electrode plates are respectively arranged at the left end and the right end of the movable plate, two electrical contacts are symmetrically arranged above the electrode plates in a front-back manner, penetrate through the wall of the sliding counter bore and are fixedly connected with the detection rod, a lamp holder is electrically connected with the upper ends of the four electrical contacts together, a detection lamp is connected in the lamp holder, the lower ends of the two electrode plates are connected with wires, the lower ends of the two wires penetrate through the detection rod and are commonly connected with a battery module, and the battery module is fixedly connected with the detection rod.
According to the embodiment of the invention, the adjusting part comprises an arc guide rail frame arranged at the left end of the vertical section of the support frame, an arc slide bar is connected in the arc guide rail frame in a sliding manner, an auxiliary spring is arranged between the lower end of the arc slide bar and the vertical section of the support frame, the upper end of the arc slide bar penetrates through the horizontal section of the support frame and is fixedly connected with the connecting block, a plurality of limiting holes which are uniformly distributed in the circumferential direction are formed in the arc slide bar, a limiting rod penetrates through the inner arc frame wall of the arc guide rail frame, and the limiting rod is in plug-in fit with any one of the limiting holes.
According to the embodiment of the invention, the weight increasing component comprises a balancing weight placed at the upper end of the supporting table, rectangular clamping blocks are respectively installed at the left end and the right end of the balancing weight, a screw rod fixedly connected with the balancing weight is arranged below the rectangular clamping blocks, a connecting square plate is sleeved on the screw rod, rectangular through holes are formed in the connecting square plate, and a limit sleeve is connected to the screw rod in a threaded mode.
According to the embodiment of the invention, the second semi-annular plate positioned at the front side is longitudinally inserted with a positioning rod in a penetrating manner, and the rear end of the positioning rod is in insertion fit with the positioning hole.
According to the embodiment of the invention, the inner ring surfaces of the first half ring plate and the second half ring plate are respectively provided with an anti-slip pad.
According to the embodiment of the invention, the middle part of the upper end surface of the middle section of the U-shaped frame is provided with the camera module for shooting the abrasion state of the pulley assembly.
In summary, the present invention includes at least one of the following beneficial technical effects: 1. the detection unit that adopts can effectually detect the circumstances of whether pulley assembly rotates or skew, has reduced the required dynamics of inspection personnel's observation, shows through detection unit after the pulley assembly damages to can stop the detection at any time, avoid pulley assembly to appear the phenomenon of damage on a large scale, and the effectual of detection can obtain the testing result fast.
2. The installation unit that adopts installs the location to pulley assembly through the mode of joint to make things convenient for pulley assembly's installation and dismantlement, improved pulley assembly installation location's efficiency.
3. The adopted multiple weight-increasing components can be spliced according to the requirement, so that detection is performed under environments with different weights, the diversity of detection is improved, and in the detection process, the multiple weight-increasing components are always positioned in the rectangular plate, thereby avoiding influence on surrounding environments and ensuring the detection safety.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a first perspective view of a safety performance detection device for a pulley assembly of a crane according to an embodiment of the invention.
Fig. 2 is a schematic perspective view of a second perspective view of a safety performance detection device for a pulley assembly of a crane according to an embodiment of the invention.
Fig. 3 shows a front view of a crane pulley assembly safety performance detection device according to an embodiment of the invention.
Fig. 4 shows a left side view of a crane pulley assembly safety performance detection apparatus provided according to an embodiment of the invention.
Figure 5 shows a cross-sectional view of A-A in figure 3.
Fig. 6 shows a cross-sectional view of B-B in fig. 4.
Fig. 7 shows an enlarged view of the N region in fig. 6.
Fig. 8 shows a schematic structural diagram of a detection unit of a crane pulley assembly safety performance detection device according to an embodiment of the invention.
Fig. 9 shows a perspective cross-sectional view of a detection part of a crane pulley assembly safety performance detection device provided according to an embodiment of the invention.
Fig. 10 shows a working schematic diagram of a crane pulley assembly safety performance detection device according to an embodiment of the invention.
Wherein the above figures include the following reference numerals: 1. a bottom plate; 2. a support frame; 21. an inclined plane; 3. an installation unit; 31. a U-shaped frame; 311. a camera module; 32. a first half-ring plate; 33. a second semi-annular plate; 331. a positioning rod; 34. an auxiliary plate; 35. inserting a connecting rod; 36. a rectangular frame; 4. a detection unit; 41. an annular slide rail; 42. an annular chute; 43. positioning holes; 44. a rotating ring; 45. a detection section; 451. a detection rod; 452. a sliding block; 453. a moving plate; 454. a connecting spring; 455. an electrode sheet; 456. an electrical contact; 457. a detection lamp; 458. a battery module; 459. a magnet; 46. a dial; 5. a pulling unit; 51. an adjusting member; 511. an arc guide rail frame; 512. an arc slide bar; 513. an auxiliary spring; 514. a limiting hole; 515. a limit rod; 52. a connecting block; 53. a hydraulic cylinder; 6. a weighting unit; 61. a support table; 62. a right angle plate; 63. a weighting member; 631. balancing weight; 632. rectangular clamping blocks; 633. a screw; 634. connecting square plates; 635. a limit sleeve; 64. a wire rope.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
Referring to fig. 1-4, a crane pulley assembly safety performance detection device comprises a bottom plate 1, wherein an L-shaped support frame 2 is arranged at the upper end of the bottom plate 1, and inclined planes 21 are arranged at corners of the support frame 2.
Referring to fig. 3, the safety performance detection device for the crane pulley assembly further comprises a mounting unit 3, wherein the mounting unit 3 is vertically mounted on the inclined plane 21 and is used for clamping the limiting pulley assembly.
Referring to fig. 1 and 8, the safety performance detection device for the crane pulley assembly further comprises a detection unit 4, the detection unit 4 is connected to the installation unit 3, the detection unit 4 comprises an annular sliding rail 41 arranged in the installation unit 3, a rubber ring is paved on the inner annular surface of the annular sliding rail 41, an annular sliding groove 42 is formed in the outer annular surface of the annular sliding rail 41, a rotating ring 44 is rotationally connected to the annular sliding groove 42, a detection part 45 is installed on the outer annular surface of the rotating ring 44, a dial 46 is installed at the position, close to the rear end, of the outer annular surface of the rotating ring 44, and a positioning hole 43 is formed in the position, close to the upper side, of the front end of the rotating ring 44.
Referring to fig. 1, 8 and 10, during specific operation, the annular slide rail 41 is sleeved on the rotating shaft of the pulley assembly in a manual mode, the annular slide rail 41 drives the detecting component 45 to be attached to the rotating part of the pulley assembly through the rotating ring 44, the rubber ring on the inner ring surface of the annular slide rail 41 plays a primary limiting role on the annular slide rail 41, and the dial 46 is used for displaying the rotating condition of the detecting component 45.
Referring to fig. 5 and 6, the mounting unit 3 includes a U-shaped frame 31 with an upward opening mounted on the inclined plane 21, a first half-ring plate 32 is mounted on the upper ends of the front and rear side walls of the U-shaped frame 31, a second half-ring plate 33 is disposed on the upper end of the first half-ring plate 32, two auxiliary plates 34 are symmetrically mounted on the outer annular surfaces of the first half-ring plate 32 and the second half-ring plate 33, a plugging rod 35 is mounted on the lower end of the auxiliary plate 34 on the upper side, the lower end of the plugging rod 35 penetrates through the auxiliary plate 34 on the lower side, and rectangular frames 36 are sleeved on the two auxiliary plates 34 on the same side.
Referring to fig. 5 and 8, a positioning rod 331 is longitudinally inserted through the second half-ring 33 at the front side, and the rear end of the positioning rod 331 is inserted into the positioning hole 43.
Referring to fig. 5, anti-slip pads are disposed on the inner annular surfaces of the first half-ring plate 32 and the second half-ring plate 33.
Referring to fig. 5, fig. 6, fig. 8 and fig. 10, in specific operation, initially, the first half-ring plate 32 and the second half-ring plate 33 are in a separated state, the pulley assembly to be detected is lifted to the two first half-ring plates 32 by the existing lifting device, then the two second half-ring plates 33 are respectively placed on the two first half-ring plates 32, the two auxiliary plates 34 on the upper side are spliced on the two auxiliary plates 34 on the lower side through the splicing rod 35, so that the second half-ring plates 33 are initially limited, then the two rectangular frames 36 are respectively sleeved on the two auxiliary plates 34 on the two sides, the function of connecting the first half-ring plates 32 and the second half-ring plates 33 is realized, the function of limiting the pulley assembly is further realized, and the anti-skid pads in the first half-ring plates 32 and the second half-ring plates 33 have the function of increasing friction force between the pulley assembly and the first half-ring plates 32 and the second half-ring plates 33, and after the positioning of the second half-ring plates 33 on the front side are completed, the positioning rod is manually penetrated through the second half-ring plates 331 to the second half-ring plates 33 to be further spliced in the annular holes 43, so that the sliding rail 41 is further limited.
Referring to fig. 1 and 6, the safety performance detection device for the crane pulley assembly further comprises a lifting unit 5, wherein the lifting unit 5 is installed on the support frame 2, the lifting unit 5 comprises an adjusting component 51 installed on the support frame 2, a connecting block 52 is installed at the upper end of the adjusting component 51, and a hydraulic cylinder 53 is installed on the connecting block 52 in a penetrating mode.
Referring to fig. 1, 6 and 7, the safety performance detection device for a crane pulley assembly further comprises a weight increasing unit 6, the weight increasing unit 6 is installed at the upper end of the bottom plate 1, the weight increasing unit 6 comprises a supporting table 61 installed at the upper end of the bottom plate 1, rectangular plates 62 are installed at the upper ends of four corners of the supporting table 61, a plurality of weight increasing components 63 are placed at the upper end of the supporting table 61 from top to bottom, a steel wire rope 64 is installed at the upper end of the weight increasing component 63 at the uppermost side, and the other end of the steel wire rope 64 is fixedly connected with the hydraulic cylinder 53.
Referring to fig. 1, fig. 5, fig. 6 and fig. 7, in specific operation, the steel wire rope 64 bypasses the pulley assembly and is fixedly connected with the hydraulic cylinder 53 in a manual mode, then the hydraulic cylinder 53 is started, the hydraulic cylinder 53 pulls the weight increasing component 63 to ascend through the steel wire rope 64, meanwhile, the steel wire rope 64 drives the rotating part of the pulley assembly to rotate, the condition of the detecting component 45 is observed to reflect the working state of the pulley assembly, then the hydraulic cylinder 53 drives the weight increasing component 63 to reset through the steel wire rope 64, then the number of the weight increasing components 63 is sequentially increased, the previous step of ascending the weight increasing component 63 is repeated, the weight increasing component 63 always slides up and down in the four right angle plates 62 through the working state of the detecting component 45 under different weights, the weight increasing component 63 can be prevented from shaking in the moving process of the four right angle plates 62, the weight increasing component 63 is prevented from affecting the surrounding environment, and the safety of detection is ensured.
Referring to fig. 6 and 7, the weight increasing member 63 includes a weight block 631 disposed at an upper end of the supporting table 61, rectangular clamping blocks 632 are mounted at left and right ends of the weight block 631, a screw 633 fixedly connected with the weight block 631 is disposed below the rectangular clamping blocks 632, a connection square plate 634 is sleeved on the screw 633, a rectangular through hole is formed in the connection square plate 634, and a limit sleeve 635 is screwed on the screw 633.
Referring to fig. 6 and 7, in specific operation, two connecting square plates 634 are manually clamped with two rectangular clamping blocks 632 on the adjacent lower balancing weights 631 through rectangular through holes, and then the limiting sleeve 635 is rotated to move towards the connecting square plates 634 on the screw rods 633, so that the connecting square plates 634 are limited, the function of connecting the adjacent two balancing weights 631 is realized, and the balancing weights 631 with corresponding numbers are manually connected according to the number of weight increasing components 63 required by detection.
Referring to fig. 6, the adjusting component 51 includes an arc guide frame 511 mounted at the left end of the vertical section of the support frame 2, an arc slide bar 512 is slidably connected in the arc guide frame 511, an auxiliary spring 513 is mounted between the lower end of the arc slide bar 512 and the vertical section of the support frame 2, the upper end of the arc slide bar 512 penetrates through the horizontal section of the support frame 2 and is fixedly connected with the connecting block 52, a plurality of limit holes 514 uniformly distributed in circumferential direction are formed in the arc slide bar 512, a limit bar 515 is arranged on the inner arc frame wall of the arc guide frame 511 in a penetrating manner, and the limit bar 515 is in plug-in fit with any one of the limit holes 514.
Referring to fig. 5, in specific operation, before detection, according to the angle required by the detection, the arc slide bar 512 is slid, the arc slide bar 512 drives the hydraulic cylinder 53 through the connecting block 52 to change the traction angle, and then the limiting rod 515 penetrates through the inner arc frame wall of the arc guide rail frame 511 and is in plug-in fit with the corresponding limiting hole 514, so that the arc slide bar 512 is limited, the hydraulic cylinder 53 is further limited, and the hydraulic cylinder 53 with adjustable traction angle can simulate the stress condition of pulley assemblies under different angles, so that the detection diversity is improved.
Referring to fig. 8 and 9, the detecting component 45 includes a detecting rod 451 mounted on an outer ring surface of the rotating ring 44, the detecting rod 451 is in an L-shaped structure, a sliding counter bore is formed at a rear end of a horizontal section of the detecting rod 451, a sliding block 452 is slidably connected in the sliding counter bore, a magnet 459 is mounted at a rear end of the sliding block 452, a moving plate 453 is mounted at a front end of the sliding block 452, a connecting spring 454 is mounted between a front end of the moving plate 453 and a wall of the sliding counter bore, electrode plates 455 are mounted at left and right ends of the moving plate 453, two electrical contacts 456 are symmetrically disposed above the electrode plates 455, the electrical contacts 456 penetrate through an upper wall of the sliding counter bore and are fixedly connected with the detecting rod 451, a lamp holder is electrically connected with the upper ends of the four electrical contacts 456 together, a detecting lamp 457 is connected in the lamp holder, the lower ends of the two electrode plates 455 are connected with wires, the lower ends of the wires penetrate through the detecting rod 451 and are commonly connected with a battery module 458, and the battery module 458 is fixedly connected with the detecting rod 451.
Referring to fig. 6-10, in a specific operation, when the annular slide rail 41 is sleeved on the rotating shaft of the pulley assembly, the annular slide rail 41 drives the detecting rod 451 to move towards the rotating portion of the pulley assembly through the rotating ring 44, the detecting rod 451 drives the magnet 459 on the sliding block 452 to contact and adsorb the rotating portion of the pulley assembly, at this time, the sliding block 452 drives the moving plate 453 to squeeze the connecting spring 454, the moving plate 453 drives the two electrode plates 455 to be located between the four electrical contacts 456, the detecting lamp 457 is in a dark state, then when the pulley assembly is detected, the rotating portion of the pulley assembly drives the sliding block 452 to rotate through the magnet 459, the sliding block 452 drives the detecting rod 451 to rotate, the detecting rod 451 rotates in the annular slide groove 42 through the rotating ring 44, scales on the scale disc 46 are used for displaying the rotating positions of the detecting rod 451, so that the rotating portion of the pulley assembly rotates under different weights, if the rotating portion of the pulley assembly deflects, the magnet 459 drives the two corresponding electrode plates 455 to contact the two corresponding electrical contacts through the sliding block 452 and the moving plate 453, and the detecting lamp 457 is in a bright state, so that the rotating portion of the pulley assembly deflects.
Referring to fig. 5, an image pickup module 311 for picking up the worn state of the pulley assembly is mounted in the middle of the upper end surface of the middle section of the U-shaped frame 31.
Referring to fig. 5, in specific operation, the camera module 311 is an existing camera, the camera module 311 is connected with an existing display device, when detecting a pulley assembly, the camera module 311 shoots the pulley assembly, so as to observe the loss of the pulley assembly, and after the pulley assembly is detected, the pulley assembly is taken down from the two first semi-annular plates 32, and the detection is completed.
In the description of the embodiments of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "outer", etc., are based on those shown in the drawings, are merely for convenience of describing the embodiments of the present invention and for simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality", "a plurality of groups" is two or more.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not limited in scope by the present invention, so that all equivalent changes according to the structure, shape and principle of the present invention are covered in the scope of the present invention.
Claims (6)
1. The utility model provides a hoist pulley assembly security performance detection device, includes bottom plate (1), support frame (2) that are the L type are installed to bottom plate (1) upper end, and support frame (2) corner is provided with inclined plane (21), its characterized in that:
the mounting unit (3) is vertically mounted on the inclined plane (21) and used for clamping the limiting pulley assembly;
the detection unit (4) is connected to the mounting unit (3), the detection unit (4) comprises an annular sliding rail (41) arranged in the mounting unit (3), a rubber ring is paved on the inner annular surface of the annular sliding rail (41), an annular sliding groove (42) is formed in the outer annular surface of the annular sliding rail (41), a rotating ring (44) is rotationally connected to the annular sliding groove (42), a detection part (45) is mounted on the outer annular surface of the rotating ring (44), a dial (46) is mounted at the position, close to the rear end, of the outer annular surface of the rotating ring (44), and a positioning hole (43) is formed at the position, close to the upper side, of the front end of the rotating ring (44);
the detection component (45) comprises a detection rod (451) arranged on the outer annular surface of the rotating ring (44), the detection rod (451) is of an L-shaped structure, a sliding counter bore is formed in the rear end of the horizontal section of the detection rod (451), a sliding block (452) is connected in the sliding counter bore in a sliding mode, a magnet (459) is arranged at the rear end of the sliding block (452), a movable plate (453) is arranged at the front end of the sliding block (452), a connecting spring (454) is arranged between the front end of the movable plate (453) and the wall of the sliding counter bore, electrode plates (455) are arranged at the left end and the right end of the movable plate (453), two electrical contacts (456) are symmetrically arranged above the electrode plates (455) in a front-rear mode, the electrical contacts (456) penetrate through the upper hole wall of the sliding counter bore and are fixedly connected with the detection rod (451), lamp holders are electrically connected with the upper ends of the four electrical contacts (456), detection lamps (457) are connected in the lamp holders, the lower ends of the two electrode plates (455) are connected with leads, the lower ends of the leads penetrate through the detection rod (451) and are connected with a battery module (458) together, and the battery module (458) is fixedly connected with the detection rod (451);
the lifting unit (5) is arranged on the support frame (2), the lifting unit (5) comprises an adjusting component (51) arranged on the support frame (2), a connecting block (52) is arranged at the upper end of the adjusting component (51), and a hydraulic cylinder (53) is arranged on the connecting block (52) in a penetrating manner;
the adjusting component (51) comprises an arc guide rail frame (511) arranged at the left end of the vertical section of the support frame (2), an arc slide bar (512) is connected in a sliding manner in the arc guide rail frame (511), an auxiliary spring (513) is arranged between the lower end of the arc slide bar (512) and the vertical section of the support frame (2), the upper end of the arc slide bar (512) penetrates through the horizontal section of the support frame (2) and is fixedly connected with the connecting block (52), a plurality of limiting holes (514) which are uniformly distributed in the circumferential direction are formed in the arc slide bar (512), a limiting rod (515) is arranged on the inner arc frame wall of the arc guide rail frame (511) in a penetrating manner, and the limiting rod (515) is in plug-in fit with any one of the limiting holes (514);
the weight increasing unit (6) is installed at the upper end of the bottom plate (1), the weight increasing unit (6) comprises a supporting table (61) installed at the upper end of the bottom plate (1), rectangular plates (62) are installed at the upper ends of four corners of the supporting table (61), a plurality of weight increasing components (63) are placed at the upper end of the supporting table (61) from top to bottom, a steel wire rope (64) is installed at the upper end of the weight increasing component (63) located at the uppermost side, and the other end of the steel wire rope (64) is fixedly connected with the hydraulic cylinder (53).
2. The crane pulley assembly safety performance detection device according to claim 1, wherein: the installation unit (3) is installed including the opening up U type frame (31) on inclined plane (21), and first half-ring board (32) are all installed to both sides wall upper end around U type frame (31), and second half-ring board (33) have been placed to first half-ring board (32) upper end, and two accessory plates (34) are all installed bilateral symmetry on the outer anchor ring of first half-ring board (32) and second half-ring board (33), are located the upside accessory plate (34) lower extreme is installed and is inserted pole (35), and auxiliary plate (34) that are located the below are run through to peg graft pole (35) lower extreme, are located two of same side accessory plate (34) on overlap jointly and are equipped with rectangle frame (36).
3. The crane pulley assembly safety performance detection device according to claim 1, wherein: the weight increasing component (63) comprises a balancing weight (631) placed at the upper end of the supporting table (61), rectangular clamping blocks (632) are respectively installed at the left end and the right end of the balancing weight (631), a screw rod (633) fixedly connected with the balancing weight (631) is arranged below the rectangular clamping blocks (632), a connecting square plate (634) is sleeved on the screw rod (633), rectangular through holes are formed in the connecting square plate (634), and limit sleeves (635) are connected to the screw rod (633) in a threaded mode.
4. The crane pulley assembly safety performance detection device according to claim 2, wherein: the second semi-annular plate (33) positioned at the front side is longitudinally inserted with a positioning rod (331), and the rear end of the positioning rod (331) is in insertion fit with the positioning hole (43).
5. The crane pulley assembly safety performance detection device according to claim 2, wherein: anti-slip pads are arranged on the inner ring surfaces of the first half ring plate (32) and the second half ring plate (33).
6. The crane pulley assembly safety performance detection device according to claim 2, wherein: and a camera module (311) for shooting the abrasion state of the pulley assembly is arranged in the middle of the upper end surface of the middle section of the U-shaped frame (31).
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