CN112610570A - Mechanical magnetic type quick-release structure of material friction abnormal sound test bed - Google Patents
Mechanical magnetic type quick-release structure of material friction abnormal sound test bed Download PDFInfo
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- CN112610570A CN112610570A CN202011375082.XA CN202011375082A CN112610570A CN 112610570 A CN112610570 A CN 112610570A CN 202011375082 A CN202011375082 A CN 202011375082A CN 112610570 A CN112610570 A CN 112610570A
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- 239000000463 material Substances 0.000 title claims abstract description 39
- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 230000002159 abnormal effect Effects 0.000 title claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 230000005389 magnetism Effects 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 9
- 239000010720 hydraulic oil Substances 0.000 description 6
- 230000005484 gravity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000031877 prophase Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B1/00—Devices for securing together, or preventing relative movement between, constructional elements or machine parts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/83—Use of a magnetic material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
- F16B2200/99—Fasteners with means for avoiding incorrect assembly or positioning
Abstract
The invention belongs to the technical field of friction abnormal sound experimental equipment, and particularly relates to a mechanical magnetic attraction type quick release structure of a material friction abnormal sound test bed, which comprises a base and a pressure rod, wherein a magnetic attraction block and a driving mechanism for driving the magnetic attraction block to rotate are rotationally connected to the lower part of the base; the base is provided with a first magnet which can attract one magnetic pole of the attraction magnet, and the pressure rod is provided with a second magnet which can attract the other magnetic pole of the attraction magnet. In the scheme, the pressure rod is fixed by utilizing the magnetic attraction effect, and when the pressure rod is installed, the pressure rod only needs to be attracted on the base; when needs make depression bar and base separation, only need to change the position of magnetism piece of inhaling, will attract between magnet and first magnet, the second magnet appeal change into the repulsion force can, installation, dismantlement easy operation, the tester quick replacement of being convenient for rubs the test material on the abnormal sound test bench.
Description
Technical Field
The invention belongs to the technical field of friction abnormal sound experimental equipment, and particularly relates to a mechanical magnetic type quick release structure of a material friction abnormal sound test bed.
Background
Automobile abnormal sound is the sound produced by two materials colliding or rubbing against each other, which is almost the most annoying and intolerable problem for all consumers. Abnormal sound can hardly be avoided completely, wherein the abnormal sound of friction is the common abnormal sound problem that just is difficult to solve of car, can test the coefficient of friction between the sample piece through the abnormal sound test bench of friction to the abnormal sound of car produces the position and carries out prophase prediction, eliminates or reduces this kind of sound from the root. During testing, a certain pressure is applied to the two materials in the vertical direction through the vertical force application mechanism, and the two materials are subjected to reciprocating friction motion according to a set rule in the horizontal direction through the actuating device, so that the friction coefficient is measured.
The existing vertical force application mechanism comprises a motor, a pressure rod, a pressure head fixed at the lower end of the pressure rod, a screw rod driven by the motor and a base moving along the screw rod, wherein the pressure rod is installed on the base, and the base, the pressure rod and the pressure head can slide along the screw rod through the rotation of the motor. When the friction test of the automobile material is needed, the material A is placed on a test bed, the material B is fixed on the lower surface of a pressure head, the actuating device drives the material A to reciprocate, and downward acting force is applied to the material B and the material A by operating the motor. When carrying out friction test to different materials, need to change different materials, when changing the material B of pressure head lower surface, need dismantle the depression bar from the base earlier, then change again, install the depression bar again on the base after the change is accomplished. The existing vertical force application mechanism is characterized in that a pressure rod and a base are connected together through fasteners such as bolts, the bolts need to be continuously screwed when the pressure rod is disassembled and installed, the operation is troublesome, a friction abnormal sound test bed is a special friction test mechanism, different materials need to be frequently tested, the disassembly and the installation of the pressure rod and the base are also frequent, and the screw thread is easy to slip, so that the connection failure of the pressure rod and the base is caused.
Disclosure of Invention
The invention aims to provide a mechanical magnetic type quick release structure of a material friction abnormal sound test bed, and aims to solve the problem that the installation and the disassembly between a pressure rod and a base are troublesome.
In order to achieve the purpose, the scheme of the invention is as follows: the mechanical magnetic type quick release structure of the material friction abnormal sound test bed comprises a base and a pressure rod, wherein a magnetic suction block and a driving mechanism for driving the magnetic suction block to rotate are rotatably connected to the lower part of the base; the base is provided with a first magnet which can attract one magnetic pole of the attraction magnet, and the pressure rod is provided with a second magnet which can attract the other magnetic pole of the attraction magnet.
The working principle and the beneficial effects of the scheme are as follows:
when the pressing rod is connected with the base, the magnetic attraction block is driven to rotate through the driving mechanism, so that the magnetic pole attracted by the first magnet in the attraction magnet is positioned right above the magnetic attraction block and mutually attracted with the first magnet, the other magnetic pole of the attraction magnet is positioned right below, one side of the pressing rod provided with the second magnet is close to the lower side of the magnetic attraction block, and the pressing rod is connected to the base under the attraction effect of the other magnetic pole of the attraction magnet. When the pressing rod needs to be detached to replace a new material, the magnetic attraction block is rotated through the driving mechanism, the magnetic pole located above the pressing rod is rotated to the lower side, the magnetic pole located below the pressing rod is rotated to the upper side, and at the moment, the pressing rod can be automatically separated from the base under the repulsive force of the attraction magnet and the second magnet and under the gravity action of the pressing rod.
In the scheme, the pressure rod is fixed by utilizing the magnetic attraction effect, and when the pressure rod is installed, the pressure rod only needs to be attracted on the base, so that the installation is convenient; when needs make depression bar and base separation, only need to change the position of magnetism piece of inhaling, will attract between magnet and first magnet, the second magnet appeal change into repulsion force can, dismantle easy operation, the tester quick replacement of being convenient for rubs the test material on the abnormal sound test bench, guarantees going on smoothly of friction abnormal sound test.
Optionally, the magnetic block is cylindrical, a concave cavity communicated with the outside is formed in the base, the magnetic block is rotatably connected in the concave cavity, and the lower portion of the magnetic block extends out of the concave cavity; the length of the magnetic suction block extending out of the concave cavity is 1/3-1/5 of the whole height of the magnetic suction block. The lower part of the magnetic suction block extends out of the cavity, and when the pressing rod is required to be connected with the base, the pressing rod and the base are easier to position.
Optionally, a connecting seat is arranged on the pressing rod, a groove capable of being matched with the lower portion of the magnetic suction block is formed in the connecting seat, and the second magnet is arranged on the connecting seat and located below the groove. When the pressing rod is required to be connected with the base, the groove is aligned to the lower part of the magnetic suction block, and the pressing rod and the base can be quickly positioned.
Optionally, the driving mechanism includes a driving gear and a driven gear both rotatably connected to the base, the driving gear is engaged with the driven gear; a connecting shaft is connected between the driven gear and the magnetic suction block; a rotating block extending out of the base is fixed on the driving gear, and a positioning part is arranged on the rotating block. When the magnetic suction block needs to be rotated, the rotating block is screwed, the driving gear is driven to rotate through the rotating block, the driving gear drives the magnetic suction block to rotate together through the driven gear when rotating, when the magnetic suction block rotates to a needed position, the rotating block is stopped to be screwed, and meanwhile, the rotating block is fixed through the positioning part, so that the magnetic suction block can be rotated and fixed.
Optionally, the positioning part comprises a positioning part and a through hole formed in the rotating block, a clamping groove capable of being opposite to the through hole is formed in the base, and a third magnet is fixed in the clamping groove; the locating piece is connected to the through hole in a sliding mode and can stretch into the clamping groove, a fourth magnet capable of attracting the third magnet is fixed on one side, close to the clamping groove, of the locating piece, and a protruding block with the length larger than the diameter of the through hole is fixed on one side, far away from the clamping groove, of the locating piece. When the rotation of the driving gear needs to be limited, the positioning piece extends into the clamping groove, the third magnet and the fourth magnet attract each other at the moment, the positioning piece can be well fixed in the clamping groove, and the rotating block and the driving gear cannot rotate at will under the limitation of the positioning piece. When the driving gear needs to be rotated, acting force is applied to the convex block, so that the positioning piece is separated from the clamping groove.
Optionally, the transmission ratio of the driving gear to the driven gear is 1:1, the base is provided with 2 clamping grooves, and each time the rotating block rotates 180 degrees, the through hole can be opposite to one of the clamping grooves. The transmission ratio of the driving gear and the driven gear is controlled, so that the positions of two magnetic poles of the attraction magnet can be switched every time the driving gear rotates by a fixed angle (180 degrees). Set up 2 draw-in grooves, the turning block rotates 180 degrees after, the setting element can stretch into one of them draw-in groove, and the turning block can not continue to rotate this moment, avoids turning block pivoted angle not to conform to the requirements.
Optionally, a first slide way is formed on the base, a second slide way is formed on the connecting seat, the first magnet is connected in the first slide way in a sliding and sealing manner, and the second magnet is connected in the second slide way in a sliding and sealing manner; the second piston and an elastic piece used for resetting the second piston are connected in a sliding manner in the second slide way in a sealing manner; the first piston is fixed on the upper part of the first rack, and the lower part of the first rack can extend into the second slide way and contact with the second piston; when the positioning piece extends into one of the clamping grooves, the first magnet and the second magnet are opposite to the attraction magnet and mutually attracted.
When the connecting seat and the pressure lever on the connecting seat are required to be connected with the base, the positioning piece extends into the clamping groove on the corresponding side, and the first magnet and the second magnet are ensured to be positioned on one side far away from the magnetic suction block. And correspondingly matching the connecting seat with the connecting seat to enable the first rack to be opposite to the second slide way. The rotating block is screwed in the fixed direction, the driving gear is driven to rotate through the rotating block, and the magnetic attraction block is driven to rotate together through the driven gear when the driving gear rotates. After the rotating block rotates 180 degrees, the magnetic poles below the attraction magnets can attract the second magnets, and the magnetic poles above and below the attraction magnets can attract the first magnets; meanwhile, the positioning piece is opposite to the other clamping groove, under the attraction of the third magnet, the fourth magnet and the positioning piece on the fourth magnet stretch into the clamping groove, and the rotating block, the driving gear and the magnetic attraction block are fixed and cannot rotate randomly. In the rotating process of the rotating block, the first piston moves, and under the transmission action of the first slideway hydraulic oil, the first magnet gradually moves to the left, is finally positioned right above the attraction magnet and mutually attracts an upper magnetic pole of the attraction magnet; simultaneously first rack applys decurrent effort to the second piston and makes the second piston down, and the spring is compressed, and under the transmission of second slide hydraulic oil, second magnet is gone upward gradually and is more and more close to attraction magnet to with the lower magnetic pole inter attraction of attraction magnet, under the effect of this attraction, the connection that the connecting seat can be fine on the base. When needing to dismantle connecting seat and depression bar and getting off the material of renewal, exert the effort to the arch, make the setting element break away from the draw-in groove, then make the turning block clockwise rotation 180 degrees, at the turning block clockwise pivoted in-process, first magnet, attraction magnet is all kept away from gradually to the second magnet, avoid first magnet and attraction magnet, the mutual appeal between second magnet and the attraction magnet is too big and makes the turning block rotate the difficulty, rotate the completion back, attraction magnet keeps away from originally the magnetic pole that is located the top and rotates the below, and the magnetic pole that originally is located the below rotates the top, because first magnet, attraction magnet has all been kept away from to the second magnet, and first magnet and attraction magnet, the appeal between second magnet and the attraction magnet disappears, under the action of gravity of connecting seat self, the connecting seat breaks away from on the base automatically.
In the scheme, the base and the connecting seat can be quickly mounted and dismounted by rotating the rotating block, and the operation is simple and convenient; moreover, after the base and the connecting seat are connected in a magnetic attraction mode, the lower end of the first rack on the base automatically extends into the second slide way of the connecting seat, the connecting seat is limited, the connecting seat can be effectively prevented from shaking at will, and the stability and the reliability of connection are guaranteed. When the base and the connecting seat are required to be separated, the first magnet and the second magnet are gradually far away from the attraction magnet when the rotating block is screwed, the attraction force between the first magnet and the attraction magnet and between the second magnet and the attraction magnet can be weakened, and the rotating block is prevented from being difficult to rotate due to overlarge attraction force.
Optionally, the resilient member is a compression spring. The compression spring has wide source and low price, meets the use requirement of the scheme, and is reasonable as the elastic part.
Optionally, the connecting seat is provided with a limiting groove communicated with the second slide way, and the second magnet is provided with a bulge connected in the limiting groove in a sliding manner. The setting of spacing groove has controlled the motion range of second magnet, can effectively avoid second magnet to break away from the connecting seat.
Optionally, a sliding chute is formed in the base, and a second rack which is meshed with the driven gear and the lower end of which extends out of the base is connected onto the sliding chute in a sliding manner; the connecting seat is provided with a strip-shaped groove, and the second rack can stretch into the strip-shaped groove. Set up the second rack, the second rack can carry out quick, accurate location to the connecting seat with the cooperation of first rack, when needs make connecting seat and base link to each other, makes during first rack stretches into the second slide, during the second rack stretches into the bar groove, can guarantee the matching of connecting seat and base hookup location. After the connecting seat is connected with the base, the first rack and the second rack are equivalent to two positioning rods of the connecting seat, the connecting seat can be effectively prevented from shaking at will, and the stability and the reliability of connection are guaranteed.
Drawings
FIG. 1 is a right-view cross-sectional view of a magnetic-type quick release structure of a material friction abnormal sound test bed according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a sectional view of a mechanical magnetic-type quick release structure of a material friction abnormal sound test bed according to a second embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;
fig. 5 is a sectional view taken along the direction C-C in fig. 3.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the magnetic attraction type magnetic suspension device comprises a base 10, a first magnet 11, a clamping groove 12, a first slide way 13, a first piston 14, a connecting seat 20, a second magnet 21, a second slide way 22, a limiting groove 221, an elastic piece 23, a second piston 24, a magnetic attraction block 30, an attraction magnet 31, a connecting shaft 32, a driven gear 40, a connecting rod 41, a rotating block 50, a positioning piece 51, a driving gear 60, a sliding groove 70, a second rack 71 and a first rack 80.
Example one
The embodiment is basically as shown in fig. 1 and fig. 2: a mechanical magnetic type quick release structure of a material friction abnormal sound test bed comprises a base 10, a connecting seat 20 and a pressure rod (the pressure rod is not shown in the figure) welded below the connecting seat 20. The base 10 is rotatably connected with a magnetic attraction block 30 and is provided with a driving mechanism for driving the magnetic attraction block 30 to rotate, the magnetic attraction block 30 is a cylinder, a cavity capable of being communicated with the outside is formed in the lower portion of the base 10, the magnetic attraction block 30 is rotatably connected in the cavity, the lower portion of the magnetic attraction block 30 extends out of the cavity, the length of the magnetic attraction block 30 extending out of the cavity is 1/3-1/5 of the overall height of the magnetic attraction block 30, and in the embodiment, the length of the magnetic attraction block 30 extending out of the cavity is 1/5 of the overall height of the magnetic attraction block. The connecting base 20 is provided with a groove which can be matched with the lower part of the magnetic block 30.
An attracting magnet 31 is fixed in the magnet block 30, and two magnetic poles of the attracting magnet 31 are distributed on the upper and lower sides of the magnet block 30. First magnet 11 is fixed in base 10, second magnet 21 is fixed in connecting seat 20, first magnet 11 can attract one of magnetic poles of attracting magnet 31, and second magnet 21 can attract the other magnetic pole of attracting magnet 31.
The driving mechanism comprises a driving gear 60 and a driven gear 40 which are both rotationally connected to the base 10, the driving gear 60 is meshed with the driven gear 40, and the transmission ratio of the driving gear 60 to the driven gear 40 is 1: 1. A connecting shaft 32 is connected between the driven gear 40 and the magnetic block 30, and two ends of the connecting shaft 32 are respectively welded on the rotation center of the driven gear 40 and the rotation center of the magnetic block 30. The driving gear 60 is fixed with a rotating block 50 extending out of the base 10, the rotating block 50 is connected with the driving gear 60 through a connecting rod 41, and a positioning part for fixing the rotating block 50 is arranged on the rotating block 50. The positioning part comprises a positioning part 51 and a through hole formed on the rotating block 50, 2 clamping grooves 12 which can be opposite to the through hole are formed on the base 10, and a third magnet is fixed in each clamping groove 12; each time the rotating block 50 rotates 180 degrees, the through hole can be opposite to one of the slots 12, and when the through hole is opposite to one of the slots 12, the first magnet 11 and the second magnet 21 are opposite to the attraction magnet 31. The positioning member 51 is slidably connected to the through hole and can extend into the slot 12, a fourth magnet capable of attracting the third magnet is fixed on one side of the positioning member 51 close to the slot 12, and a projection with a length larger than the diameter of the through hole is fixed on one side of the positioning member 51 far away from the slot 12.
When the connecting seat 20 and the pressing rod on the connecting seat 20 need to be connected with the base 10, the rotating block 50 is screwed, the driving gear 60 is driven to rotate through the rotating block 50, and the magnetic attraction block 30 is driven to rotate together through the driven gear 40 when the driving gear 60 rotates. When the magnetic block 30 rotates to a desired position (i.e. when one of the magnetic poles of the first magnet 11 and the attracting magnet 31 is opposite and attracted to each other), the rotating block 50 is stopped being screwed, at this time, the positioning member 51 is opposite to the slot 12, under the attraction of the third magnet, the positioning member 51 on the fourth magnet and the fourth magnet extends into the slot 12, and the rotating block 50, the driving gear 60, and the magnetic block 30 are fixed and cannot rotate freely. The recess on the connecting base 20 is engaged with the lower portion of the magnetic block 30, and the magnetic pole below the attraction magnet 31 is attracted to the second magnet 21, so that the connecting base 20 and the pressing rod are connected to the base 10 by the attraction force. When the connecting seat 20 and the pressing rod need to be detached to replace new materials, acting force is applied to the protrusion to separate the positioning piece 51 from the clamping groove 12, then the rotating block 50 is rotated by 180 degrees, the magnetic pole located above originally rotates to the lower part, the magnetic pole located below originally rotates to the upper part, and at this time, under the repulsive force of the attraction magnet 31 and the second magnet 21 and under the action of the gravity of the connecting seat 20, the connecting seat 20 automatically separates from the base 10.
Example two
This embodiment is basically as shown in fig. 3 and 4: a mechanical magnetic type quick release structure of a material friction abnormal sound test bed comprises a base 10, a connecting seat 20 and a pressure rod welded below the connecting seat 20. The base 10 is rotatably connected with a magnetic attraction block 30 and is provided with a driving mechanism for driving the magnetic attraction block 30 to rotate, the magnetic attraction block 30 is a cylinder, a cavity capable of being communicated with the outside is formed in the lower portion of the base 10, the magnetic attraction block 30 is rotatably connected in the cavity, the lower portion of the magnetic attraction block 30 extends out of the cavity, the length of the magnetic attraction block 30 extending out of the cavity is 1/3-1/5 of the overall height of the magnetic attraction block 30, and in the embodiment, the length of the magnetic attraction block 30 extending out of the cavity is 1/5 of the overall height of the magnetic attraction block. The connecting base 20 is provided with a groove which can be matched with the lower part of the magnetic block 30.
An attracting magnet 31 is fixed in the magnet block 30, and two magnetic poles of the attracting magnet 31 are distributed on the upper and lower sides of the magnet block 30. A first magnet 11 is disposed in the base 10, a second magnet 21 is disposed in the connecting seat 20, the first magnet 11 can attract one of the magnetic poles of the attracting magnet 31, and the second magnet 21 can attract the other magnetic pole of the attracting magnet 31.
The driving mechanism comprises a driving gear 60 and a driven gear 40 meshed with the driving gear 60, an accommodating cavity is formed in the base 10, the driving gear 60 and the driven gear 40 are rotatably connected in the accommodating cavity, and the transmission ratio of the driving gear 60 to the driven gear 40 is 1: 1. A connecting shaft 32 is connected between the driven gear 40 and the magnetic block 30, and two ends of the connecting shaft 32 are respectively welded on the rotation center of the driven gear 40 and the rotation center of the magnetic block 30. The driving gear 60 is fixed with a rotary block 50 extending out of the base 10, and the rotary block 50 is provided with a positioning portion for fixing the rotary block 50. Referring to fig. 5, the positioning portion includes a positioning member 51 and a through hole formed on the rotating block 50, 2 slots 12 are formed on the base 10 and can be opposite to the through hole, and a third magnet is fixed in the slots 12. When the through hole is opposite to one of the slots 12, the rotating block 50 rotates 180 degrees, the through hole can be opposite to the other slot 12, and when the through hole is opposite to the slot 12, the first magnet 11 and the second magnet 21 can be opposite to the attracting magnet 31, the magnetic poles above the first magnet 11 and the attracting magnet 31 attract each other, and the magnetic poles below the second magnet 21 and the attracting magnet 31 attract each other. The positioning member 51 is slidably connected to the through hole and can extend into the slot 12, a fourth magnet capable of attracting the third magnet is fixed on one side of the positioning member 51 close to the slot 12, and a projection with a length larger than the diameter of the through hole is fixed on one side of the positioning member 51 far away from the slot 12.
The base 10 is provided with a first slide way 13, the connecting seat 20 is provided with a U-shaped second slide way 22, the first magnet 11 is connected in the first slide way 13 in a sliding and sealing mode, and the second magnet 21 is connected in the right side of the second slide way 22 in a sliding and sealing mode. The connecting seat 20 is provided with a limiting groove 221 communicated with the second slide rail 22, and the second magnet 21 is welded with a bulge connected in the limiting groove 221 in a sliding manner. A second piston 24 slides in the left side of the second slide way 22 and is connected to the second slide way in a sealing manner, an elastic member 23 for resetting the second piston 24 is further arranged in the second slide way 22, in this embodiment, the elastic member 23 is a compression spring, one end of the compression spring is connected to the second piston 24, and the other end of the compression spring is connected to the second slide way 22. The second slide 22 is filled with hydraulic oil between the second piston 24 and the second magnet 21, and when the second slide is not acted by other external force, under the action of the compression spring, the second piston 24 is located in the upper portion of the connecting seat 20, and the second magnet 21 is far away from the upper surface of the connecting seat 20 and is located in the lower portion of the connecting seat 20.
First slide 13 slides and sealing connection has first piston 14, and first slide 13 intussuseption is filled with the hydraulic oil that is located between first piston 14 and first magnet 11. A first rack 80 meshed with the driving gear 60 is further connected in the first slide way 13 in a sliding manner (the inner diameter of the first rack 80 is slightly smaller than that of the first slide way 13), and the lower part of the first rack 80 extends out of the first slide way 13, can extend into the second slide way 22 and is in contact with the second piston 24; the first piston 14 is welded on the upper portion of the first rack 80, and the first rack 80 can slide along the first slideway 13 under the action of the first piston 14. The positioning element 51 extends into one of the slots 12, and when the first magnet 11 and the second magnet 21 are both opposite to the attracting magnet 31, the rotating block 50 is rotated clockwise, so that the rotating block 50 rotates 180 degrees, the positioning element 51 extends into the other slot 12, at this time, the first magnet 11 is located on the right side of the magnetic attraction block 30, and the second magnet 21 is located below the magnetic attraction block 30.
Open on the base 10 has spout 70, and sliding connection has the second rack 71 with driven gear 40 meshing on the spout 70, and it has the bar groove that can be relative with spout 70 to open on the connecting seat 20, and second rack 71 can stretch into in the bar groove. When the positioning member 51 is engaged with any of the slots 12, the lower portions of the first rack 80 and the second rack 71 can extend out of the base 10.
When the connecting base 20 and the pressing rod on the connecting base 20 need to be connected with the base 10, the positioning member 51 is extended into the corresponding slot 12, so as to ensure that the first magnet 11 is located on the right side of the magnetic block 30 and the second magnet 21 is located below the magnetic block 30. The connecting seat 20 and the connecting seat 20 are correspondingly matched, so that the lower end of the first rack 80 extends into the second slideway 22, the lower end of the second rack 71 extends into the strip-shaped groove,
the rotating block 50 is screwed counterclockwise, the driving gear 60 is driven to rotate by the rotating block 50, and the magnetic attraction block 30 is driven to rotate together by the driven gear 40 when the driving gear 60 rotates. After the rotating block 50 rotates 180 degrees, the magnetic pole below the attraction magnet 31 can attract the second magnet 21, and the magnetic pole above and below the attraction magnet can attract the first magnet 11; meanwhile, the positioning element 51 is opposite to the other card slot 12, and under the attraction of the third magnet, the fourth magnet and the positioning element 51 on the fourth magnet extend into the card slot 12, and the rotating block 50, the driving gear 60 and the magnetic absorption block 30 are fixed and cannot rotate freely. In the process that the rotating block 50 rotates counterclockwise, the first rack 80 and the second rack 71 gradually move downward and further extend into the second slideway 22 and the strip-shaped groove. When the first rack 80 moves downwards, the first piston 14 is driven to move downwards, and under the transmission action of the hydraulic oil of the first slideway 13, the first magnet 11 gradually moves leftwards, is finally positioned right above the attraction magnet 31, and mutually attracts an upper magnetic pole of the attraction magnet 31; meanwhile, the first rack 80 applies downward acting force to the second piston 24 to enable the second piston 24 to move downwards, the spring is compressed, under the transmission action of hydraulic oil of the second slide way 22, the second magnet 21 gradually moves upwards to be closer to the attraction magnet 31 and mutually attracts with the lower magnetic pole of the attraction magnet 31, and under the action of the attraction force, the connecting seat 20 can be well connected to the base 10.
When the connecting seat 20 and the pressing rod need to be detached for replacing new materials, acting force is applied to the protrusion, so that the positioning piece 51 is separated from the clamping groove 12, then the rotating block 50 rotates clockwise by 180 degrees, in the process that rotating block 50 rotates clockwise, first magnet 11 and second magnet 21 are gradually far away from attraction magnet 31, so that difficulty in rotating block 50 due to overlarge mutual attraction force between first magnet 11 and attraction magnet 31 and between second magnet 21 and attraction magnet 31 is avoided, and after rotation is completed, attracting magnet 31 rotates to the lower side away from the magnetic pole originally located at the upper side, while the magnetic pole originally located at the lower side rotates to the upper side, since first magnet 11 and second magnet 21 are both away from attracting magnet 31, and the attractive force between first magnet 11 and attracting magnet 31 and between second magnet 21 and attracting magnet 31 disappears, the connection holder 20 is automatically separated from the base 10 by the gravity of the connection holder 20 itself.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.
Claims (10)
1. Formula rapid disassembly structure is inhaled to material friction abnormal sound test bench machinery, its characterized in that: the magnetic attraction device comprises a base and a pressure rod, wherein a magnetic attraction block and a driving mechanism for driving the magnetic attraction block to rotate are rotatably connected to the lower part of the base; the base is provided with a first magnet which can attract one magnetic pole of the attraction magnet, and the pressure rod is provided with a second magnet which can attract the other magnetic pole of the attraction magnet.
2. The mechanical magnetic type quick release structure of the material friction abnormal sound test bed according to claim 1, is characterized in that: the magnetic block is a cylinder, a concave cavity communicated with the outside is formed in the base, the magnetic block is rotatably connected in the concave cavity, and the lower part of the magnetic block extends out of the concave cavity; the length of the magnetic suction block extending out of the concave cavity is 1/3-1/5 of the whole height of the magnetic suction block.
3. The mechanical magnetic type quick release structure of the material friction abnormal sound test bed according to claim 2, is characterized in that: the pressure bar is provided with a connecting seat, the connecting seat is provided with a groove which can be matched with the lower part of the magnetic suction block, and the second magnet is arranged on the connecting seat and positioned below the groove.
4. The mechanical magnetic type quick release structure of the material friction abnormal sound test bed according to claim 3, is characterized in that: the driving mechanism comprises a driving gear and a driven gear which are both rotationally connected to the base, and the driving gear is meshed with the driven gear; a connecting shaft is connected between the driven gear and the magnetic suction block; a rotating block extending out of the base is fixed on the driving gear, and a positioning part is arranged on the rotating block.
5. The mechanical magnetic type quick release structure of the material friction abnormal sound test bed according to claim 4, is characterized in that: the positioning part comprises a positioning part and a through hole formed in the rotating block, a clamping groove capable of being opposite to the through hole is formed in the base, and a third magnet is fixed in the clamping groove; the locating piece is connected to the through hole in a sliding mode and can stretch into the clamping groove, a fourth magnet capable of attracting the third magnet is fixed on one side, close to the clamping groove, of the locating piece, and a protruding block with the length larger than the diameter of the through hole is fixed on one side, far away from the clamping groove, of the locating piece.
6. The mechanical magnetic type quick release structure of the material friction abnormal sound test bed according to claim 5, is characterized in that: the transmission ratio of the driving gear to the driven gear is 1:1, the base is provided with 2 clamping grooves, and each time the rotating block rotates 180 degrees, the through hole can be opposite to one clamping groove.
7. The mechanical magnetic type quick release structure of the material friction abnormal sound test bed according to claim 6, is characterized in that: the base is provided with a first slideway, the connecting seat is provided with a second slideway, the first magnet is connected in the first slideway in a sliding and sealing manner, and the second magnet is connected in the second slideway in a sliding and sealing manner; the second piston and an elastic piece used for resetting the second piston are connected in a sliding manner in the second slide way in a sealing manner; the first piston is fixed on the upper part of the first rack, and the lower part of the first rack can extend into the second slide way and contact with the second piston; when the positioning piece extends into one of the clamping grooves, the first magnet and the second magnet are opposite to the attraction magnet and mutually attracted.
8. The mechanical magnetic type quick release structure of the material friction abnormal sound test bed according to claim 7, is characterized in that: the elastic member is a compression spring.
9. The mechanical magnetic type quick release structure of the material friction abnormal sound test bed according to claim 7, is characterized in that: the connecting seat is provided with a limiting groove communicated with the second slideway, and the second magnet is provided with a bulge connected in the limiting groove in a sliding manner.
10. The mechanical magnetic type quick release structure of the material friction abnormal sound test bed according to claim 7, is characterized in that: the base is provided with a sliding chute, and the sliding chute is connected with a second rack which is engaged with the driven gear in a sliding way and the lower end of which extends out of the base; the connecting seat is provided with a strip-shaped groove, and the second rack can stretch into the strip-shaped groove.
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| CN202011375082.XA CN112610570B (en) | 2020-11-30 | 2020-11-30 | Mechanical magnetic type quick-dismantling structure of material friction abnormal sound test bed |
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| CN202011375082.XA CN112610570B (en) | 2020-11-30 | 2020-11-30 | Mechanical magnetic type quick-dismantling structure of material friction abnormal sound test bed |
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| CN112610570B (en) | 2024-01-23 |
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