CN204327850U - A kind of shock resistance damping device - Google Patents
A kind of shock resistance damping device Download PDFInfo
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- CN204327850U CN204327850U CN201420810813.2U CN201420810813U CN204327850U CN 204327850 U CN204327850 U CN 204327850U CN 201420810813 U CN201420810813 U CN 201420810813U CN 204327850 U CN204327850 U CN 204327850U
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- movable part
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- sensitive switch
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Abstract
The utility model belongs to mechanical structure technical field, is specifically related to a kind of shock resistance damping device, and namely one does not need material to contact with each other, but passes through the device of the magnetic repulsive force bumper and absorbing shock between two magnet.Magnet can be permanent magnet, can be also electromagnet, arrange rolling element, as steel ball between movable part and sleeve.The beneficial effects of the utility model are: provide two of cushion effect parts not need contact, do not produce extruding, working life extends, and does not need frequent replacing, saves material, saves maintenance time.
Description
Technical field
The utility model belongs to mechanical structure technical field, is specifically related to a kind of shock resistance damping device.
Background technique
In field of engineering technology, often use the device needing shock resistance bumper and absorbing shock, one end of device is fixed, and the other end is often subject to moment impact load.Under impulsive load, structural member easily damages, and in order to prevent damaging, usual way increases softer material between extruded two sides, as rubber or polyurethane, also may be helical spring.These are all the mode bumper and absorbing shocks contacted by material, and the easy compression failure of the material on surface of contact or heavy wear were lost efficacy, and needed frequently to regularly replace, caused waste of material, extended the maintenance maintenance time.
Summary of the invention
The purpose of this utility model is to provide one not need to contact with each other, but passes through the device of the magnetic repulsive force bumper and absorbing shock between two magnet.
The utility model is achieved through the following technical solutions: i.e. a kind of shock resistance damping device, comprise movable part, two magnet, lower movable part and sleeve, on, lower movable part respectively with one magnet connects to form assembly parts, two assembly parties are arranged on sleeve two ends respectively, sliding pair is formed with sleeve, can move axially along sleeve, magnet is positioned at sleeve inner, from the one side close to mid point, two magnet from close to two magnetic poles identical, namely be all N pole, or be all S pole, when two magnet are mutually from when obtaining more and more, produce more and more stronger repulsive force.
Above-described magnet can be permanent magnet, also can be electromagnet, i.e. a coil be coiled into by electric wire, also can one be permanent magnet, another is electromagnet.No matter be which kind of magnet, from must close to two magnetic poles all identical, be namely all N pole or be all S pole.Polarity is identical, so can produce mutual repulsive force when two magnet are close to each other.If permanent magnet, then magnetic field size is determined, if electromagnet, then and its size uncertain, as required, can, by regulating the size of electric current, make its magnetic intensity some position in stroke larger, other positions are less, or some period is comparatively large, and all the other periods are less.An electromagnet not necessarily coil is working independently, also can be inserted with iron core in inside, both collaborative works, can obtain larger magnetic intensity.
Above-described magnetic intensity some position in stroke is comparatively large, and other positions are less, and this operating mode can be realized by the combinational circuit of sensitive switch and resistance.Sensitive switch has collision bead, public terminal, Chang Kaiduan and normally closed terminal, do not have touched in collision bead, when being namely in original position, path between public terminal and normally closed terminal, open circuit between public terminal and normal beginning, when collision bead is touched, sensitive switch is triggered, and becomes open circuit between public terminal and normally closed terminal, becomes path between public terminal and normal beginning.Sensitive switch is by support installing in frame, and collision bead touch panel is arranged on movable part.When not being subject to impulsive load, collision bead is in original position.When upper movable part be subject to impulsive load move down time, collision bead touch panel, along with moving down, touches collision bead simultaneously, and sensitive switch is triggered and keeps this state always.Get back to original position when upper movable part moves up, collision bead also gets back to original position, and the state be not triggered got back to by sensitive switch.
The connection of circuit is such.Two electromagnet series connection, if rotation direction is identical, namely one left-handed, another dextrorotation, then one links up from the terminal away from mid point two on the terminal close to sleeve mid point and another electromagnet, if rotation direction on the contrary, is namely all left-handed or is all dextrorotation, then two adjacent terminal link up.All the other two terminal, a public terminal connecing sensitive switch.Resistance one termination sensitive switch Chang Kaiduan, the normally closed terminal of another termination sensitive switch.Sensitive switch Chang Kaiduan and the remaining terminal of electromagnet two terminals connect the positive and negative electrode of DC electrical source respectively.The two poles of the earth that this connection two electromagnet are adjacent are always identical, are namely all N pole or are all S pole.
Operationally, when this shock resistance damping device is temporarily idle, electric current through two magnet spools, enters sensitive switch public terminal from power supply one pole, to the normally closed terminal of sensitive switch, through resistance, gets back to another pole of power supply.Move down when upper movable part is subject to impact, collision bead touch panel is along with moving down, touch collision bead simultaneously, trigger sensitive switch, then electric current from a pole through two magnet spools, enter sensitive switch public terminal, to sensitive switch Chang Kaiduan, directly get back to another pole of power supply without resistance.Electric current time idle flows through resistance, and electric current is less, and the repulsive force of two electromagnet generations is less, and only enough deadweights supporting upper movable part, can save electric energy.During the load that is hit, electric current is without resistance, and electric current is comparatively large, and the repulsive force of two electromagnet generations is comparatively large, can cushion larger impulsive load.
Above-described sliding pair can be magnet or select certain suitable fit tolerance zone between movable part and sleeve, sliding friction between two parts making cooperation.In order to reduce the degree of wear, simultaneously in order to keep movable part coaxial with sleeve, also rolling element can be set between movable part and sleeve, as steel ball, during two relative movement, rolling element rolls, such change sliding friction is rolling friction, reduces frictional force and abrasion degree.In order to avoid rolling element is mutually crowded, if arrange at sleeve or movable part inside the slideway specializing in the closed loop of rolling element shuttling movement, rolling element is when being rolled to from position close to movable part or sleeve, slideway has gap, and some exposes slideway to make rolling element, the part exposed and movable part or barrel contacts, change sliding friction is rolling friction, reduce frictional force and by friction level, also keep movable part coaxial with sleeve simultaneously, have better using effect like this.Sometimes in order to make movable part can rest on certain position, multiple pressure-bearing bar can be set around magnet, sleeve is arranged multiple jackscrew, be used for compressing pressure-bearing bar, sliding friction between magnet and pressure-bearing bar, magnet can rest on certain position under magnetic force, deadweight and frictional force acting in conjunction.Service time has been grown, magnet and pressure-bearing bar are not enough to because of fret wear provide enough large frictional force, at this moment jackscrew can be adjusted, pressure-bearing bar is made to produce suitable displacement, carry out the size that compensate for wear is fallen, make frictional force return to original size, thus magnet still can be rested on certain position under magnetic force, deadweight and frictional force acting in conjunction.
The end of above-described movable part is fixed with one block of softer material, as rubber, polyurethane etc., is to be damaged when preventing this end from frequently contacting with other material.Magnet is fixed with one block of softer material, as rubber, polyurethane etc., is to prevent when running into special circumstances, as run into suddenly larger power or making electromagnet catastrophic failure because having a power failure suddenly, when two magnetic poles contact, can not surface be damaged by pressure.
The beneficial effects of the utility model are: provide two of cushion effect parts not need contact, do not produce extruding, working life extends, and does not need frequent replacing, saves material, saves maintenance time.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment 1 stereogram, and for ease of observing internal structure, sleeve and movable part hypothetically cut open 1/4th;
Fig. 2 is embodiment 1 sectional view, when upper movable part 3 is not impacted in position, collision bead 22.1 in position time situation;
Fig. 3 is embodiment 1 sectional view, moves down when upper movable part 3 is subject to impact, and situation when having touched collision bead 22.1;
Fig. 4 is embodiment 1 control circuit schematic diagram;
Fig. 5 is the utility model embodiment 2 stereogram, and for ease of observing internal structure, sleeve and movable part hypothetically cut open 1/4th;
Fig. 6 is embodiment 2 sectional view;
Fig. 7 is the utility model embodiment 3 stereogram, and for ease of observing internal structure, sleeve hypothetically cuts open 1/4th;
Shown in figure: 1. terminal; 2. terminal; 3. go up movable part; 3.1 collision bead touch panels; 4. coil; 5. iron core; 6. steel ball; 7. rubber pad; 8. sleeve; 9. descend movable part; 10. terminal; 11. terminal; 12. rubber pads; 13. pressure-bearing bars; 14. jackscrews; 15. magnet S poles; 16. magnet N poles; 17. magnet N poles; 18. magnet S poles; 19. coils; 20. iron cores; 21. slideways.22. sensitive switches; 22.1 collision beads; 22.2 public terminals; 22.3 Chang Kaiduan is sub; 22.4 normally closed terminal; 23. resistance; 24. supports; 25. electric wires.
Embodiment
Embodiment 1: as shown in Figure 1 to Figure 3, a kind of shock resistance damping device, is made up of upper movable part 3, coil 4, iron core 5, sleeve 8, lower movable part 9, coil 19, iron core 20.
Upper movable part 3, coil 4, iron core 5 combine into an overall movable part, coil 4 from the end of upper movable part 3 stretch out terminal 1 and terminal 2, two terminal connect with the mains after coil just can produce magnetic.
Lower movable part 9, coil 19, iron core 20 combine into an overall movable part, coil 19 from the end of lower movable part 9 stretch out terminal 10 and terminal 11, two terminal connect with the mains after coil just can produce magnetic.
This model utility is also provided with control circuit, makes magnetic intensity less when temporarily idle, comparatively large when being subject to impulsive load, is realized by the combinational circuit of sensitive switch 22 and resistance 23.Sensitive switch has collision bead 22.1, public terminal 22.2, Chang Kaiduan 22.3 and normally closed terminal 22.4.Sensitive switch 22 is contained on support 24, and collision bead touch panel 3.1 to be arranged on movable part 3 and to follow it and moves.When not being subject to impulsive load, collision bead 22.1 is in original position, and sensitive switch 22 is not triggered, as shown in Figure 2.As shown in Figure 3, when upper movable part 3 be subject to impulsive load move down time, collision bead touch panel 3.1, along with moving down, touches collision bead 22.1 simultaneously, and sensitive switch 22 is triggered and keeps this state always.When upper movable part 3 move up get back to original position time, collision bead 22.1 also gets back to the home state shown in Fig. 2.
Original position is in when collision bead 22.1 does not have touched, path between public terminal 22.2 and normally closed terminal 22.4, open circuit between public terminal 22.2 and normal beginning 22.3, as shown in Figure 4, when collision bead 22.1 is touched, sensitive switch 22 is triggered, become open circuit between public terminal 22.2 and normally closed terminal 22.4, between public terminal 22.2 and normal beginning 22.3, become path.
The connection of circuit is such.Two electromagnet are all left-handed, are together in series, and non-conterminous two terminal 2 and 10 are linked up by electric wire 25.Terminal 1 connect the public terminal 22.2 of sensitive switch.Resistance 23 1 termination sensitive switch Chang Kaiduan 22.3, the normally closed terminal 22.4 of another termination sensitive switch.Draw terminal 26 from sensitive switch Chang Kaiduan 22.3, electromagnet terminal 11 and terminal 26 two terminals connect the both positive and negative polarity of DC electrical source respectively.The two poles of the earth that such mode of connection makes two electromagnet adjacent are identical.
Sleeve 8 has oval closed loop slideway 21, be booked steel ball 6 in slideway 21, steel ball 6 can move in circles rolling in slideway 21.Slideway 21 is not that to be completely enclosed within sleeve 8 inner, but has gap, and steel ball 6 is rolled to from during position close to upper movable part 3 or lower movable part 9 that some exposes, and can contact with upper movable part 3 or lower movable part 9.Sleeve 8 has evenly been arranged multiple this slideway 21, and be booked steel ball 6 in each slideway 21, namely these steel balls constrain the radial degrees of freedom of movable part 3 and lower movable part 9.When upper movable part 3 or lower movable part 9 move vertically, steel ball 6 followed by rolling, each steel ball 6 can promote steel ball adjacent before it and roll forward, all steel balls 6 all can roll along slideway 21, like this, become between upper and lower movable part 3 and 9 and sleeve 8 and slide as rolling, frictional force significantly reduces.
In order to two movable parts collide mutually tempestuously when preventing from having a power failure suddenly in work, paste in the upper end of lower movable part 9 rubber pad 7 that softer material is made.
Operationally, allow lower movable part 9 fix, upper movable part 3 accepts the shock of other component.When this shock resistance damping device is temporarily idle, electric current through coil 19 and 4, enters sensitive switch public terminal 22.2 from terminal 11, to the normally closed terminal 22.4 of sensitive switch, through resistance 23, gets back to terminal 26, gets back to another pole of power supply.Move down when upper movable part 3 is knocked, collision bead touch panel 3.1 is driven to move down and touch collision bead 22.1, sensitive switch 22 is triggered, electric current from terminal 11 through coil 19 and 4, enter sensitive switch public terminal 22.2, to sensitive switch Chang Kaiduan 22.3, directly get back to terminal 26, get back to another pole of power supply.Electric current time idle flows through resistance 23, and electric current is less, and the repulsive force of two electromagnet generations is less, and only enough deadweights supporting upper movable part, can save electric energy.During the load that is hit, electric current is without resistance 23, and electric current is comparatively large, and the repulsive force of two electromagnet generations is comparatively large, can cushion larger impulsive load.
Embodiment 2: as shown in Figure 5 and Figure 6, a kind of shock resistance damping device, be made up of upper movable part 3, lower movable part 9, two permanent magnets, sleeves 8, one of them permanent magnet has S pole 15 and N pole 16, link together with upper movable part 3, another permanent magnet has S pole 18 and N pole 17, and lower movable part 9 links together.S pole 15 and S pole 18 from must close to, be subject to the power mutually repelled.Pressure-bearing bar 13 pushes down two permanent magnets, makes movable part 3 and the magnet be connected can keep balance under frictional force, gravity and magnetic force acting in conjunction, rests on top position far away.Jackscrew 14 pairs of pressure-bearing bars 13 have suitable pressure, and pressure size can be regulated, when pressure-bearing bar 13 or magnet diminish because of abrasion size, frictional force also can diminish, adjust the change that this jackscrew 14 carrys out free size, make frictional force return to original size, thus make movable part 3 and the magnet be connected under frictional force, gravity and magnetic force acting in conjunction, still can keep balance.
Between upper movable part 3 and sleeve 8, be provided with steel ball 6, be used for keeping movable part 3 and sleeve 8 radial distance, make them keep coaxial, when movable part 3 moves in sleeve 8, steel ball 6 is in rolling, and relative to sliding friction, wearing and tearing program significantly reduces.Between lower movable part 9 and sleeve 8, be provided with steel ball 6, there is identical function.
Operationally, lower movable part 9 is allowed to fix, upper movable part 3 accepts the shock of other component, when there being external force to collide upper movable part 3, upper movable part 3 moves down, from lower movable part 9 more close to, it is larger that S pole 15 and S pole 18 are subject to mutual repulsive force, when external force and repulsive force equal and opposite in direction, upper movable part 3 is in state of equilibrium and stop motion, thus serves buffer function.
Embodiment 3: as shown in Figure 7, a kind of shock resistance damping device, be made up of upper movable part 3, lower movable part 9, two permanent magnets, sleeves 8, one of them permanent magnet has S pole 15 and N pole 16, link together with upper movable part 3, another permanent magnet has S pole 18 and N pole 17, and lower movable part 9 links together.N pole 16 and N pole 17 from must close to, be subject to the power mutually repelled.Cross section all made by upper movable part 3, lower movable part 9, permanent magnet, sleeve 8 is square pattern, and the foreign side of permanent magnet is identical with interior side's base dimension of sleeve 8, selects suitable fit tolerance zone, makes them be applicable to being used as sliding friction formula sliding pair.
When equipment is when idle, top movable parts rest on top comparatively far-end under the acting in conjunction of deadweight, frictional force and magnetic force, when external force is pressed in suddenly on upper movable part 3, top movable part followed by decline, and N pole 16 and N pole 17 are from obtaining more and more, and mutual repulsive force is increasing, until strength reaches balance, no longer decline, stop at certain position, thus reach the effect of buffering.
Claims (6)
1. a shock resistance damping device, it is characterized by: comprise movable part, two magnet, lower movable part and sleeves, upper and lower movable part respectively with one magnet connects to form assemblying body, two assembly parties are arranged on sleeve two ends respectively, form sliding pair with sleeve respectively, magnet be positioned at sleeve inner, from close to mid point, two magnet from close to two magnetic poles identical, namely be all N pole, or be all S pole.
2. a kind of shock resistance damping device according to claim 1, it is characterized by magnet is electromagnet, and comprise coil and iron core, iron core is inserted in coil inside.
3. a kind of shock resistance damping device according to claim 1, it is characterized by magnet is permanent magnet.
4. a kind of shock resistance damping device according to claim 1, is characterized by magnet or is provided with rolling element between movable part and sleeve.
5. a kind of shock resistance damping device according to claim 4, is characterized by the slideway arranging closed loop in sleeve/movable part inside, and from the position close to movable part/sleeve, slideway has gap, and some exposes slideway to make rolling element.
6. a kind of shock resistance damping device according to claim 2, is characterized by electromagnet and is connected with control circuit, comprises sensitive switch, collision bead touch panel, resistance; Sensitive switch by support installing in frame; Collision bead touch panel is arranged on movable part; Two terminal of two electromagnet connect, i.e. two electromagnet series connection; All the other two terminal, one of them connects the public terminal of sensitive switch; Resistance one termination sensitive switch Chang Kaiduan, the normally closed terminal of another termination sensitive switch; Sensitive switch Chang Kaiduan and the remaining terminal of electromagnet connect the positive and negative electrode of DC electrical source respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420810813.2U CN204327850U (en) | 2014-12-21 | 2014-12-21 | A kind of shock resistance damping device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420810813.2U CN204327850U (en) | 2014-12-21 | 2014-12-21 | A kind of shock resistance damping device |
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| CN204327850U true CN204327850U (en) | 2015-05-13 |
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| CN201420810813.2U Expired - Fee Related CN204327850U (en) | 2014-12-21 | 2014-12-21 | A kind of shock resistance damping device |
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| CN (1) | CN204327850U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843763A (en) * | 2017-09-23 | 2018-03-27 | 国网山东省电力公司菏泽市定陶区供电公司 | A kind of Multifunctional electroscope |
| CN107862831A (en) * | 2017-09-25 | 2018-03-30 | 国网山东省电力公司菏泽市定陶区供电公司 | A kind of 10kv is grounded alarm device |
| CN110264657A (en) * | 2019-05-29 | 2019-09-20 | 林荣东 | A kind of guard against theft in market security device with anti-extrusion function |
| CN111381073A (en) * | 2020-05-01 | 2020-07-07 | 深迪半导体(上海)有限公司 | MEMS accelerometer and method for improving shock resistance thereof |
| CN112696476A (en) * | 2020-12-03 | 2021-04-23 | 天津理工大学 | Electric loader with electromagnetic buffer device |
-
2014
- 2014-12-21 CN CN201420810813.2U patent/CN204327850U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843763A (en) * | 2017-09-23 | 2018-03-27 | 国网山东省电力公司菏泽市定陶区供电公司 | A kind of Multifunctional electroscope |
| CN107862831A (en) * | 2017-09-25 | 2018-03-30 | 国网山东省电力公司菏泽市定陶区供电公司 | A kind of 10kv is grounded alarm device |
| CN110264657A (en) * | 2019-05-29 | 2019-09-20 | 林荣东 | A kind of guard against theft in market security device with anti-extrusion function |
| CN110264657B (en) * | 2019-05-29 | 2020-11-24 | 浙江环艺电子科技有限公司 | Market theftproof security protection equipment with anti extrusion function |
| CN111381073A (en) * | 2020-05-01 | 2020-07-07 | 深迪半导体(上海)有限公司 | MEMS accelerometer and method for improving shock resistance thereof |
| CN111381073B (en) * | 2020-05-01 | 2021-11-30 | 深迪半导体(绍兴)有限公司 | MEMS accelerometer and method for improving shock resistance thereof |
| CN112696476A (en) * | 2020-12-03 | 2021-04-23 | 天津理工大学 | Electric loader with electromagnetic buffer device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20151221 |
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| EXPY | Termination of patent right or utility model |