CN112858007B - Balanced loading device for double-pull test - Google Patents
Balanced loading device for double-pull test Download PDFInfo
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- CN112858007B CN112858007B CN202110275651.1A CN202110275651A CN112858007B CN 112858007 B CN112858007 B CN 112858007B CN 202110275651 A CN202110275651 A CN 202110275651A CN 112858007 B CN112858007 B CN 112858007B
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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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
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Abstract
The invention provides a balanced loading device for a double-pull test, which comprises a shell, a traction frame, a driving piece and a traction rope, wherein the traction frame is arranged on the shell; the two ends of the shell are respectively used for being connected with the fixed frame, a slideway is arranged in the middle of the shell, and two leading-out pulleys and two guiding pulleys which are symmetrically distributed by taking the slideway as the center are rotatably connected in the shell; one end of the traction frame is connected in the slideway in a sliding manner, and a traction pulley with the center aligned with the axial direction of the slideway is rotatably connected on the traction frame; the driving piece is arranged in the shell, and the output end of the driving piece is connected with the traction frame; the traction rope is sleeved on the traction pulley, two ends of the traction rope sequentially penetrate through the guide pulley and the leading-out pulley and are correspondingly connected with the two points to be measured respectively, and the extending direction of the two ends of the traction rope penetrating through the shell is equal to the axial included angle of the slide way. The balanced loading device for the double-pull test provided by the invention has high test precision, and can be suitable for components with different structures, so that test consumables are saved, and the test cost is reduced.
Description
Technical Field
The invention belongs to the technical field of mechanical test devices, and particularly relates to a balanced loading device for a double-pull test.
Background
At present, when testing the mechanical stability of a structural member, an equal tension test is usually performed on two spaced points on the structural member, and a mode adopted in the test at present is to connect a tension device on two test points respectively and then make two groups of tension devices apply the same tension at the same time for testing. The tensile force that tests through this kind of mode because two sets of pulling force devices applyed corresponding test point is difficult to keep unanimous to can lead to the deviation of test result, influence judges to the mechanical stability of structure, in addition, this kind of measurement mode need be to the pulling force device of corresponding structure of configuration to different structures, thereby leads to experimental consumptive material volume big, and the test cost is high.
Disclosure of Invention
The invention aims to provide a balanced loading device for a double-pull test, and aims to solve the problems of poor test result precision and high test cost of the existing double-pull test mode.
In order to achieve the purpose, the invention adopts the technical scheme that: the double-pull test balanced loading device comprises a shell, a traction frame, a driving piece and a traction rope; the two ends of the shell are respectively used for being connected with the fixing frame, a slideway is arranged in the middle of the shell, two leading-out pulleys which are symmetrically distributed by taking the slideway as the center are rotatably connected in the shell, and two guide pulleys which are symmetrically distributed by taking the slideway as the center are also rotatably connected in the shell; the traction frame is arranged on the outer side of the shell, one end of the traction frame is connected to the inside of the slideway in a sliding mode, a traction pulley is connected to the traction frame in a rotating mode, and the center of the traction pulley is aligned to the axial direction of the slideway; the driving piece is arranged in the shell, the output end penetrates out of the shell along the axial direction of the slideway, and the output end is connected with the traction frame; the traction rope is sleeved on the traction pulley, and two ends of the traction rope respectively penetrate through one of the guide pulleys and one of the leading-out pulleys in sequence and penetrate out of the shell; the both ends of haulage rope are used for respectively corresponding the connection with two points that await measuring on the component that awaits measuring, and the extending direction that the casing was worn out at the both ends of haulage rope equals with the axial contained angle of slide.
As another embodiment of this application, the casing outside is equipped with laser and indexes the subassembly, and laser indexes the subassembly and is used for launching laser mark lead wire to two components to be measured simultaneously, and two laser mark lead wires are equal with the axial contained angle of slide.
As another embodiment of the present application, a laser indexing assembly includes a housing, two laser emitters, and a linkage; the shell is fixedly connected to the side wall of the shell facing the component to be tested, and one end of the shell facing the component to be tested is open; the two laser transmitters are symmetrically distributed in the shell by taking the slide way as the center, and one end of each laser transmitter extends out of the open end of the shell and is used for transmitting a laser mark lead towards the component to be tested; the linkage piece is arranged in the shell and is respectively connected with the two laser transmitters for driving the two laser transmitters to swing in the opposite directions at the same time.
As another embodiment of the present application, the linkage includes a first rotating shaft, a first swing frame, a second rotating shaft, and a second swing frame; the first rotating shaft is rotatably connected in the shell, one end of the first rotating shaft penetrates through the shell and is provided with a knob, and a first gear is sleeved on the first rotating shaft; the first swing frame is fixedly connected to the first rotating shaft, is positioned in the shell and is used for connecting one of the laser transmitters; the second rotating shaft is rotatably connected in the shell and symmetrically distributed with the first rotating shaft by taking the slide way as the center, and a second gear is sleeved on the second rotating shaft and is in meshed connection with the first gear; the second swing frame is fixedly connected to the second rotating shaft, is positioned inside the shell and is used for connecting another laser emitter.
As another embodiment of the application, a first dial is arranged on the periphery of the knob on the side wall of the shell, scale values on the first dial correspond to axial included angles of the two laser transmitters, and an indicating punctuation is arranged on the knob.
As another embodiment of the application, a second dial is arranged on the traction frame, a zeroing marking point is arranged on the second dial, and one end of a wheel shaft of the traction pulley is rotatably connected with a pointer corresponding to the second dial.
As another embodiment of this application, the both ends of casing are equipped with the engaging lug respectively, and the last rotation axial along traction sheave of engaging lug articulates there is fastening assembly, fastening assembly and mount fixed connection.
As another embodiment of the present application, a fastening assembly includes a connecting plate, a threaded pin, and a slide; one side of the connecting plate is attached to the side wall of the connecting lug, and one end of the connecting plate is provided with a sliding rod extending towards the connecting position of the fixing frame; one end of the threaded pin penetrates through the connecting lug to be connected with the connecting plate in a screwing mode, and the threaded pin is connected with the connecting lug in a rotating mode; the sliding seat is connected with the sliding rod in a sliding mode along the extending direction of the sliding rod and is fixedly connected to the fixed frame.
As another embodiment of the application, the side walls, which are attached to each other, of the connecting plate and the connecting lugs are respectively provided with the toothed discs which are meshed with each other, the side walls, which are attached to each other, of the connecting plate and/or the connecting lugs are provided with the accommodating cavities, and the accommodating cavities are internally provided with the elastic pieces.
Furthermore, the driving piece is a hydraulic cylinder, the hydraulic cylinder is used for being connected with a hydraulic system, a pressure sensor is arranged between the fixed end of the hydraulic cylinder and the inner wall of the shell or between the output end of the hydraulic cylinder and the traction frame, a visible window is formed in the side wall of the shell, and the visible window is aligned with a display screen of the pressure sensor.
The balanced loading device for the double-pull test has the beneficial effects that: compared with the prior art, the balanced loading device for the double-pull test has the advantages that two ends of the shell are respectively fixed on the fixing frame positioned at the side of the component to be tested during the test, then two ends of the traction rope are respectively connected with two points to be tested on the component to be tested, the extending directions of the two ends of the traction rope are equal to the axial included angle of the slide way, after the connection is completed, acting force is applied to the traction frame through the driving piece, so that the traction frame drives the traction pulley to slide along the axial direction of the slide way in the direction far away from the shell, further, the two ends of the traction rope respectively apply pulling force to the two points to be tested under the guiding action of the corresponding guide pulley and the leading-out pulley, as the pulling force of the two points to be tested is generated through the two ends of the traction rope respectively, and the directions of the pulling force generated to the two points to be tested are the same, and as the traction pulley is aligned with the axial direction of the slide way, therefore, the vertical distance between the two ends of the traction rope and the traction pulley is equal, the tension at the two ends of the traction rope can be always kept consistent, the stress of the shell can be balanced, the test error can be reduced, the test precision is improved, the two ends of the traction rope can be conveniently connected with two points to be tested for the component to be tested with any structure, the universality is good, the test material consumption can be reduced, and the test cost is saved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic perspective view of a balanced loading device for a double pull test according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an internal structure of a balanced loading device for a double pull test according to an embodiment of the present invention;
fig. 3 is a first schematic diagram illustrating a testing principle of the balanced loading device for the double pull test according to the embodiment of the present invention;
fig. 4 is a schematic diagram illustrating a testing principle of the balanced loading device for the double pull test according to the embodiment of the present invention;
fig. 5 is a schematic diagram of a testing principle of the balanced loading device for the double pull test according to the embodiment of the present invention;
fig. 6 is a schematic diagram illustrating a testing principle of the balanced loading device for the double pull test according to the embodiment of the present invention;
fig. 7 is a schematic diagram of a testing principle of the balanced loading device for the double pull test according to the embodiment of the present invention;
fig. 8 is a schematic view of a connection structure between a fastening assembly and an engaging lug according to an embodiment of the present invention.
In the figure: 1. a housing; 10. a visible window; 11. leading out a pulley; 12. a guide pulley; 13. a slideway; 14. connecting lugs; 15. a fastening assembly; 151. a connecting plate; 1511. a slide bar; 1512. a toothed disc; 1513. an accommodating cavity; 152. a threaded pin; 153. a slide base; 154. an elastic member; 16. a third scale plate; 17. a level gauge; 2. a traction frame; 20. a second dial; 21. a traction sheave; 211. a pointer; 3. a drive member; 30. a pressure sensor; 4. a hauling rope; 5. a laser indexing assembly; 50. a first dial; 51. a housing; 52. a laser transmitter; 520. a laser mark lead; 53. a linkage member; 531. a first rotating shaft; 5311. a first gear; 5312. a knob; 532. a first swing frame; 533. a second rotating shaft; 5331. a second gear; 534. a second swing frame; 6. a fixed mount; 7. a member to be tested; 70. and (6) measuring points to be measured.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to fig. 6, the balanced loading device for the double pull test according to the present invention will now be described. The double-pull test balanced loading device comprises a shell 1, a traction frame 2, a driving piece 3 and a traction rope 4; the two ends of the shell 1 are respectively used for being connected with the fixed frame 6, a slideway 13 is arranged in the middle of the shell, two leading-out pulleys 11 which are symmetrically distributed by taking the slideway 13 as a center are rotatably connected in the shell 1, and two guide pulleys 12 which are symmetrically distributed by taking the slideway 13 as a center are also rotatably connected in the shell 1; the traction frame 2 is arranged on the outer side of the shell 1, one end of the traction frame is connected to the inside of the slideway 13 in a sliding mode, the traction frame 2 is connected with a traction pulley 21 in a rotating mode, and the center of the traction pulley 21 is aligned with the axial direction of the slideway 13; the driving piece 3 is arranged in the shell 1, the output end of the driving piece penetrates out of the shell 1 along the axial direction of the slideway 13, and the output end of the driving piece is connected with the traction frame 2; the traction rope 4 is sleeved on the traction pulley 21, and two ends of the traction rope respectively pass through one of the guide pulleys 12 and one of the leading-out pulleys 11 in sequence and penetrate out of the shell 1; two ends of the hauling rope 4 are respectively used for being correspondingly connected with two points 70 to be measured on the member 7 to be measured, and the extending direction of the two ends of the hauling rope 4 penetrating through the shell 1 is equal to the axial included angle of the slideway 13.
It should be noted that a fixing frame 6 rigidly connected to the ground is provided at the side of the component to be measured 7, or the component to be measured 7 should be placed at the side of the fixing frame 6 during the test; the fixed frame 6 is provided with connecting positions which can be connected with two ends of the shell 1, and the shell 1 can be connected with the fixed frame 6 at any angle according to the structure of the component 7 to be measured and the angle between the connecting line between the two points 70 to be measured and the ground; in addition, in order to ensure that the extending directions of the two ends of the pulling rope 4 are equal to the axial included angle of the slideway 13 after the pulling rope 4 is connected with the two points 70 to be measured, when the shell 1 is connected with the fixed frame 6, the vertical bisector of the central connecting line of the two leading-out pulleys 11 is coincided with the axis of the slideway 13.
It should be understood here that, because the traction rope 4 is sleeved on the traction pulley 21, the traction pulley 21 slides under the driving of the driving element 3 to generate traction force, so that the tension generated by the two ends of the traction rope 4 on the two points to be measured 70 is half of the driving force applied by the driving element 3 on the traction frame 2.
The working mode of the balanced loading device for the double-pull test provided by the invention is as follows: the two points to be tested 70 are distributed at intervals up and down, and please refer to fig. 3, if the distance between the two points to be tested 70 is equal to the distance between the positions of the two ends of the traction rope 4 led out from the two leading-out pulleys 11, the distance can be used for testing the stability of the two points to be tested 70 under the action of horizontal tension; referring to fig. 4 and 5, if the distance between the two points to be measured 70 is greater than or less than the distance between the positions of the two ends of the traction rope 4 led out from the two leading-out pulleys 11, the stability of the two points to be measured 70 under the action of the diagonal tension can be tested; referring to fig. 6, if two points to be measured 70 distributed vertically are located on different vertical planes, that is, there is a horizontal distance between the two points to be measured 70, when two ends of the pulling rope 4 are connected to the two points to be measured 70, respectively, it is only necessary to ensure that the extending directions of the two ends of the pulling rope 4 are consistent with the included angle (or the axial direction of the slideway 13) between the vertical connecting lines of the two points to be measured 70 (that is, the included angle a in fig. 6 is equal to the included angle B), and under the condition that the elastic deformation of the pulling rope 4 under tension is not considered (the pulling rope 4 adopts a steel wire rope matched with the tension test load, and the influence factor of the elastic deformation on the test can be ignored), the length of the two ends of the pulling rope 4 penetrating through the housing 1 does not influence the test result.
After the shell 1, the fixed frame 6 and the two ends of the traction rope 4 are respectively connected with the two points to be measured 70, the driving frame is used for loading to generate thrust to the traction frame 2, thereby driving the traction pulley 21 and the traction frame 2 to slide in the axial direction of the slideway 13 in the direction far away from the shell 1, leading the traction pulley 21 to respectively apply tension to the two points to be measured 70 through the traction rope 4, according to the principle of acting force and reacting force, the pulling forces at the two ends of the pulling rope 4 are equal, and because the extending directions of the two ends of the pulling rope 4 are equal to the axial included angle of the slideway 13, the pulling pulley 21 is positioned on the vertical bisector of the projection connecting line of the two points to be measured 70 on the same vertical plane, therefore, the horizontal pulling force or the horizontal component of the pulling force applied to the two points to be tested 70 is equal and can be always kept equal, so that the two points to be tested 70 can be synchronously applied with the same pulling force for stability test.
Compared with the prior art, the balanced loading device for the double-pull test provided by the invention has the advantages that two ends of the shell 1 are respectively fixed on the fixing frame 6 positioned at the side of the component to be tested 7 during the test, then two ends of the traction rope 4 are respectively connected with the two points to be tested 70 on the component to be tested 7, the extending directions of the two ends of the traction rope 4 are equal to the axial included angle of the slide way 13, acting force is applied to the traction frame 2 through the driving piece 3 after the connection is finished, so that the traction frame 2 drives the traction pulley 21 to slide along the axial direction of the slide way 13 in the direction far away from the shell 1, further, the two ends of the traction rope 4 respectively apply pulling force to the two points to be tested 70 under the guiding action of the corresponding guide pulley 12 and the leading-out pulley 11, the pulling force at the two ends of the traction rope 4 can be always kept consistent, the self-stress of the shell 1 can be balanced, the test error can be reduced, and the test precision can be improved, and for the component 7 to be tested with any structure, the two ends of the traction rope 4 can be conveniently connected with the two points 70 to be tested, so that the universality is good, the test material consumption can be reduced, and the test cost is saved.
As a specific embodiment of the balanced loading device for the double-pull test provided by the present invention, please refer to fig. 2 to 5, a laser indexing assembly 5 is disposed outside the housing 1, the laser indexing assembly 5 is used for simultaneously emitting laser marker leads 520 to two members to be tested 7, and axial included angles between the two laser marker leads 520 and the slideway 13 are equal. When the shell 1 is connected, the included angle between the two laser mark leads 520 of the laser marking assembly 5 is adjusted according to the vertical distance between the two points 70 to be detected and the horizontal distance between the shell 1 and the member 7 to be detected, so that the light spots emitted by the two laser mark leads 520 to the member 7 to be detected are respectively aligned with the two points 70 to be detected, then the shell 1 is connected and fixed with the fixing frame 6, thereby ensuring that the extending directions of the two ends of the traction rope 4 are equal to the axial included angle of the slideway 13 after the two ends of the traction rope 4 are respectively connected with the two points 70 to be detected, ensuring that the traction pulley 21 is positioned on the vertical bisector of the connecting line of the projection points of the two points 70 to be detected on the same vertical plane, ensuring that the horizontal split of the pulling force synchronously exerted on the two points 70 to be detected by the two ends of the traction rope 4 is equal, thereby reducing the test error caused by the deviation of the installation position of the shell 1, and the test precision is improved.
In the present embodiment, referring to fig. 2, the laser indexing assembly 5 includes a housing 51, two laser transmitters 52, and a linkage 53; wherein, the shell 51 is fixedly connected to the side wall of the casing 1 facing the component 7 to be measured, and one end facing the component 7 to be measured is open; the two laser transmitters 52 are symmetrically distributed in the shell 51 by taking the slide way 13 as a center, and one end of each laser transmitter 52 extends out of the open end of the shell 51 and is used for transmitting a laser mark lead 520 towards the component 7 to be tested; the linkage member 53 is disposed in the housing 51, and is connected to the two laser emitters 52 respectively, for driving the two laser emitters 52 to swing simultaneously and reversely.
When the angles of the two laser mark leads 520 are adjusted according to the positions of the two points 70 to be measured, the two laser emitters 52 can be driven to simultaneously and reversely swing by operating the linkage member 53, so that the axial included angles between the two laser mark leads 520 and the slideway 13 are always kept consistent, the accurate mounting and fixing position of the shell 1 can be ensured, and the test error is reduced.
Specifically, referring to fig. 2, the linkage 53 includes a first rotating shaft 531, a first swing frame 532, a second rotating shaft 533, and a second swing frame 534; the first rotating shaft 531 is rotatably connected in the housing 51, one end of the first rotating shaft passes through the housing 51 and is provided with a knob 5312, and the first rotating shaft 531 is sleeved with a first gear 5311; the first swing frame 532 is fixedly connected to the first rotating shaft 531, is located inside the housing 51, and is used for connecting one of the laser emitters 52; the second rotating shaft 533 is rotatably connected in the housing 51, and symmetrically distributed with the first rotating shaft 531 by taking the slideway 13 as a center, the second gear 5331 is sleeved on the second rotating shaft 533, and the second gear 5331 is engaged with the first gear 5311; the second swing frame 534 is fixedly connected to the second rotating shaft 533, and is located inside the housing 51, for connecting to another laser transmitter 52.
When the angles of the two laser emitter leads 520 are adjusted, the first rotating shaft 531 can be driven to rotate by rotating the knob 5312, the first rotating shaft 531 can drive the first swing frame 532 to swing, the first gear 5311 rotates, meanwhile, the first gear 5311 drives the second gear 5331 to rotate reversely, so that the second rotating shaft 533 can be driven to rotate, the second swing frame 534 is driven to swing reversely and synchronously relative to the first swing frame 532, and finally, the synchronous reverse swing of the two laser emitters 52 is realized.
Further, referring to fig. 1 and 2, a first scale 50 is disposed on the sidewall of the housing 51 at the periphery of the knob 5312, a scale value on the first scale 50 corresponds to an axial included angle between the two laser emitters 52, and an indication mark is disposed on the knob 5312. When the knob 5312 is rotated, the scale lines corresponding to the indicating marks can represent the included angle between the laser guide lines 520 emitted by the two laser emitters 52, and then the vertical distance between the light spots emitted by the two laser guide lines 520 to the member 7 to be tested can be calculated through the horizontal distance between the laser emitters 52 and the point 70 to be tested and the distance between the two laser emitters 52, so that the pre-calculated distance value can be corresponded by the scale values, the relative position between the shell 1 and the point to be tested can be conveniently determined, and the testing efficiency can be improved.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1, a second dial 20 is disposed on the traction frame 2, a zeroing index point is disposed on the second dial 20, and one end of the axle of the traction pulley 21 is rotatably connected with a pointer 211 corresponding to the second dial 20. When the traction rope 4 is connected, the traction pulley 21 is usually driven to rotate, so that the pointer 211 is inevitably deviated from the position of the zeroing mark point, after the traction rope 4 is connected and pretightening force is applied through the driving part 3, the pointer 211 is stirred to be aligned with the zeroing mark point, then a tension test is started, if the pointer 211 is always aligned with the zeroing mark point in the test process, the two points to be tested 70 can be always kept stable under the action of tension, if the pointer 211 deflects, at least one point to be tested 70 is represented to be unstable in movement under the action of tension, so that the tension critical points of the two points to be tested 70 can be accurately judged, the tension limiting value of the points to be tested 70 is obtained according to the acting force applied by the driving part 3 at the tension critical point, the test result is intuitive, and the test error is small.
Referring to fig. 1 and 7, two ends of the housing 1 are respectively provided with a connecting lug 14, a fastening component 15 is hinged on the connecting lug 14 along the rotating axial direction of the traction pulley 21, and the fastening component 15 is fixedly connected with the fixing frame 6. When the component 7 that awaits measuring is the slope component, need make two center connecting lines of drawing out pulley 11 parallel with the incline direction of slope component, rotate fastening component 15 through relative engaging lug 14 this moment to under the prerequisite that does not change fastening component 15 and mount 6's the face of being connected, realize the slope of casing 1, thereby be suitable for the tensile test of slope component, application scope is wide, and need not to make corresponding mount 6 in addition, thereby can practice thrift experimental consumptive material, reduce test cost.
In the present embodiment, referring to fig. 1 and 8, the fastening assembly 15 includes a connecting plate 151, a threaded pin 152, and a sliding seat 153; wherein, one side of the connecting plate 151 is attached to the side wall of the connecting lug 14, and one end is provided with a sliding rod 1511 extending towards the connecting position of the fixed frame 6; one end of the threaded pin 152 penetrates through the connecting lug 14 to be screwed with the connecting plate 151, and the threaded pin 152 is rotatably connected with the connecting lug 14; the slide seat 153 is slidably connected to the slide rod 1511 along the extending direction of the slide rod 1511, and the slide seat 153 is used for being fixedly connected to the fixed frame 6. When the inclination angle of the shell 1 needs to be adjusted, the connecting plate 151 can swing relative to the connecting lug 14 by loosening the threaded pin 152, and the threaded pin 152 is screwed again after the adjustment is in place, so that the operation is simple and convenient, and the manufacturing cost is low; when casing 1 swung to the state parallel with the inclined component, the vertical distance at its both ends necessarily reduced, passed through slide 153 this moment along slide bar 1511's axial slip to can increase the distance between slide 153 and the casing 1, make slide 153 can carry out zonulae occludens with the relevant position of mount 6 under the unchangeable condition in the face position of being connected of mount 6, ensure connection stability, and need not to make in addition and connect the component and fix, thereby reduce test cost.
Specifically, referring to fig. 1 and 8, the mutually attached side walls of the connecting plate 151 and the connecting lug 14 are respectively provided with a toothed disc 1512 engaged with each other, and the mutually attached side walls of the connecting plate 151 and/or the connecting lug 14 are provided with a receiving cavity 1513, and the receiving cavity 1513 is internally provided with an elastic member 154. When the threaded pin 152 is unscrewed, the distance between the connecting plate 151 and the connecting lug 14 is automatically separated under the action of the elastic piece 154, so that the toothed disc 1512 is separated to swing the shell 1, and when the angle of the shell 1 is adjusted in place, the threaded pin 152 is screwed again, so that the toothed disc 1512 is meshed again, the phenomenon that the connecting plate 151 and the connecting lug 14 are stressed to rotate and dislocate to cause the change of the included angle between the extending direction of the two ends of the traction rope 4 and the connecting line of the two points 70 to be tested, so that the condition that the tension of the two points 70 to be tested is balanced is influenced, and the testing precision is ensured.
In addition, referring to fig. 7, a third dial 16 is disposed on the sidewall of the housing 1, a level 17 is rotatably connected to the center of the third dial 16, and two ends of the level 17 correspond to the scale lines on the third dial 16. When the shell 1 is swung, according to the inclination angle of the inclined component, the level gauge 17 is firstly rotated to the angle aligned with the corresponding scale on the third scale disc 16, then the shell 1 is swung to the level gauge 17 to reach the horizontal state, so that the inclination angle of the shell 1 is consistent with the inclination angle of the inclined component, the adjustment process is simple and convenient, the adjustment precision is high, and the test accuracy can be improved.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 and fig. 2, the driving member 3 is a hydraulic cylinder, the hydraulic cylinder is used for connecting with a hydraulic system, a pressure sensor 30 is disposed between a fixed end of the hydraulic cylinder and an inner wall of the housing 1 or between an output end of the hydraulic cylinder and the traction frame 2, a visual window 10 is disposed on a side wall of the housing 1, and the visual window 10 is aligned with a display screen of the pressure sensor 30. Pneumatic cylinder bearing capacity is strong, and it is steady reliable to exert the effort, can real-time detection pneumatic cylinder to 2 exerted thrust sizes of traction frame through pressure sensor 30, and operating personnel can read through the pressure that visual window 10 observed on the display screen in real time to can master the test condition in real time, test structure acquires the convenience, can improve efficiency of software testing.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. Two experimental balanced loading devices that draw, its characterized in that includes:
the device comprises a shell, a fixing frame, a plurality of guide pulleys and a plurality of fixing frames, wherein two ends of the shell are respectively used for being connected with the fixing frame, a slide way is arranged in the middle of the shell, two leading-out pulleys which are symmetrically distributed by taking the slide way as the center are rotatably connected in the shell, and two guide pulleys which are symmetrically distributed by taking the slide way as the center are also rotatably connected in the shell;
the traction frame is arranged on the outer side of the shell, one end of the traction frame is connected to the inside of the slideway in a sliding mode, a traction pulley is connected to the traction frame in a rotating mode, and the center of the traction pulley is aligned to the axial direction of the slideway;
the driving piece is arranged in the shell, the output end of the driving piece penetrates out of the shell along the axial direction of the slide way, and the output end of the driving piece is connected with the traction frame;
the traction rope is sleeved on the traction pulley, and two ends of the traction rope respectively penetrate through one of the guide pulleys and one of the leading-out pulleys in sequence and penetrate out of the shell; two ends of the traction rope are respectively used for correspondingly connecting with two components to be tested on the components to be tested, and the extending direction of the two ends of the traction rope penetrating through the shell is equal to the axial included angle of the slide way;
the laser guide assembly is used for simultaneously emitting laser guide leads to the two components to be tested, and axial included angles between the two laser guide leads and the slide way are equal;
the laser indexing assembly comprises:
the shell is fixedly connected to the side wall of the shell, which faces the component to be tested, and one end of the shell, which faces the component to be tested, is open;
the two laser transmitters are symmetrically distributed in the shell by taking the slide way as a center, and one ends of the laser transmitters extend out of the open end of the shell and are used for transmitting the laser mark leads towards the component to be tested;
and the linkage piece is arranged in the shell, is respectively connected with the two laser transmitters and is used for driving the two laser transmitters to simultaneously and reversely swing.
2. The double pull test isostatic loading unit according to claim 1, wherein said linkage member comprises:
the first rotating shaft is rotatably connected in the shell, one end of the first rotating shaft penetrates out of the shell and is provided with a knob, and a first gear is sleeved on the first rotating shaft;
the first swing frame is fixedly connected to the first rotating shaft, is positioned in the shell and is used for connecting one of the laser transmitters;
the second rotating shaft is rotatably connected in the shell and symmetrically distributed with the first rotating shaft by taking the slide way as a center, a second gear is sleeved on the second rotating shaft, and the second gear is in meshed connection with the first gear;
and the second swing frame is fixedly connected to the second rotating shaft, is positioned in the shell and is used for connecting another laser emitter.
3. The double-pull test balanced loading device according to claim 2, characterized in that a first dial is arranged on the side wall of the housing at the periphery of the knob, a scale value on the first dial corresponds to an axial included angle between the two laser transmitters, and an indicating mark point is arranged on the knob.
4. The double-pull test balanced loading device according to claim 1, wherein a second dial is arranged on the traction frame, a zero-resetting marking point is arranged on the second dial, and one end of the wheel shaft of the traction pulley is rotatably connected with a pointer corresponding to the second dial.
5. The double-pull test balanced loading device according to claim 1, wherein two ends of the housing are respectively provided with a connecting lug, a fastening component is hinged on the connecting lug along the rotating axial direction of the traction pulley, and the fastening component is fixedly connected with the fixing frame.
6. The double pull test isostatic loader of claim 5, wherein said fastening assembly comprises:
one side of the connecting plate is attached to the side wall of the connecting lug, and one end of the connecting plate is provided with a sliding rod extending towards the connecting position of the fixing frame;
one end of the threaded pin penetrates through the connecting lug to be connected with the connecting plate in a screwing mode, and the threaded pin is connected with the connecting lug in a rotating mode;
the sliding seat is arranged on the fixed frame and is used for being fixedly connected with the sliding rod in a sliding mode.
7. The balanced loading device for the double-pull test according to claim 6, wherein the mutually attached side walls of the connecting plate and the connecting lugs are respectively provided with mutually engaged toothed discs, and the mutually attached side walls of the connecting plate and/or the connecting lugs are provided with accommodating cavities in which elastic members are arranged.
8. The double pull test balanced loading device of any one of claims 1 to 7, wherein the driving member is a hydraulic cylinder, the hydraulic cylinder is used for connecting with a hydraulic system, a pressure sensor is arranged between a fixed end of the hydraulic cylinder and the inner wall of the housing or between an output end of the hydraulic cylinder and the traction frame, a visual window is arranged on the side wall of the housing, and the visual window is aligned with a display screen of the pressure sensor.
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| CN202110275651.1A CN112858007B (en) | 2021-03-15 | 2021-03-15 | Balanced loading device for double-pull test |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN208547541U (en) * | 2018-08-17 | 2019-02-26 | 济南寰正科技发展有限公司 | Anti- axial load separating experiment device |
| CN212059723U (en) * | 2020-03-18 | 2020-12-01 | 天津科技大学 | Young modulus tester |
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|---|---|---|---|---|
| JP4041415B2 (en) * | 2003-02-24 | 2008-01-30 | 本田技研工業株式会社 | Rope return device in vehicle collision test equipment |
| CN209329569U (en) * | 2019-01-16 | 2019-08-30 | 孙世城 | A kind of quick wire tensioning device of self-balancing |
| CN109900547A (en) * | 2019-03-21 | 2019-06-18 | 镇江市建设工程质量检测中心有限公司 | A kind of horizontal press |
| CN209802832U (en) * | 2019-04-16 | 2019-12-17 | 南京德比科技有限公司 | A balancing unit for tensile test |
| CN210375482U (en) * | 2019-05-17 | 2020-04-21 | 厦门维希尔自动化科技有限公司 | Terminal seat and terminal push-pull power detection assembly thereof |
| CN110261095A (en) * | 2019-07-23 | 2019-09-20 | 广东电网有限责任公司 | A kind of tension stringing experimental rig |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208547541U (en) * | 2018-08-17 | 2019-02-26 | 济南寰正科技发展有限公司 | Anti- axial load separating experiment device |
| CN212059723U (en) * | 2020-03-18 | 2020-12-01 | 天津科技大学 | Young modulus tester |
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