CN204479409U - The device that a kind of double hard ground material continues quantitatively to exert pressure - Google Patents
The device that a kind of double hard ground material continues quantitatively to exert pressure Download PDFInfo
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- CN204479409U CN204479409U CN201520144911.1U CN201520144911U CN204479409U CN 204479409 U CN204479409 U CN 204479409U CN 201520144911 U CN201520144911 U CN 201520144911U CN 204479409 U CN204479409 U CN 204479409U
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Abstract
The device that double hard ground material continues quantitatively to exert pressure, is characterized in that it comprises example platform, pressure mechanism, elevating mechanism, pulley blocks force value enlarger and balance weight mechanism; Setting pressure mechanism above described example platform; Described pressure mechanism is connected with elevating mechanism, and is connected with balance weight mechanism by pulley blocks force value enlarger.Superiority: 1, the utility model automatically can complete pressure head and rises, setting-out, pressure-like, and pressurize regularly, is the mechanical hook-up that a special Full Featured semi-rigid earth material continues quantitatively to exert pressure; 2, the utility model can complete the whole course of action needed for experiment; The precision of the force value between strict guarantee pressure head and sample; Impact without loading; Without the need to artificial carrying heavy goods up and down; Without the need to manual time-keeping; 3, the utility model structure is simple, and price is low, complete function, can greatly reduce universal testing machine occupied time, accurate, economical, succinct, reliable.
Description
(1) technical field:
The utility model relates to the detection field of double withstand voltage physical performance index of hard ground material, particularly relates to the mechanical hook-up that a kind of double hard ground material continues quantitatively to exert pressure.
(2) background technology:
PVC flooring is the preferred material of large-scale public place ground pavement at present, and in addition, as rubber track, rubber mass gravity flow self-leveling floor material is also the important materials of special large-scale public place ground pavement, and semi-rigid earth material is referred to as by these ground material.This type of semi-rigid earth material all can have permanent damage in various degree after people, car and operating apparatus compressing, i.e. expendable depression in various degree.The bearing capacity of standard GB/T/T 4085-2005 to half hard ground material is defined as depression degree, and has clear and definite detection method.But in detection method, specify only indenter size, force value and time, and not specifically force method and corollary apparatus.In detection practice, the simplest weight pressure of some use puts method, and what also have to exert pressure method with universal testing machine, all there is obvious problem.Specify in standard, pressure head diameter 11.3mm, force value is 500N, and use simply method of exerting pressure above the pressure head of diameter 11.3mm, place 500N weight, whether whether weight center of gravity has no way of known with pressure head axis coinciding, have impact etc. to there is series of problems during force.Exert pressure with universal testing machine no problem in method principle, but the standard regulation force time is 150 minutes, in the process, universal testing machine is occupied, in practical operation, seldom has laboratory to do like this.
(3) utility model content:
The purpose of this utility model is the device providing a kind of double hard ground material to continue quantitatively to exert pressure, it can overcome the deficiencies in the prior art, be a kind of special project, reliably, accurately semi-rigid earth material continue the instrument of quantitatively exerting pressure, solve the inaccurate and unreliable of method of simply exerting pressure, solve problem when universal testing machine method of exerting pressure takies machine for a long time.
The technical solution of the utility model: the device that a kind of double hard ground material continues quantitatively to exert pressure, is characterized in that it comprises example platform, pressure mechanism, elevating mechanism, pulley blocks force value enlarger and balance weight mechanism; Setting pressure mechanism above described example platform; Described pressure mechanism is connected with elevating mechanism, and is connected with balance weight mechanism by pulley blocks force value enlarger.
Described example platform is fixed on fuselage.
Described pressure mechanism is made up of pressure head, pressure head bar and pressure head bar lifting frame; Described pressure head bar upper end is fixed on pressure head bar lifting frame, and pressure head is installed in pressure head bar lower end; Described pressure head bar and pressure head vertical with the sample surfaces be placed on example platform.
Described pressure head bar is arranged in the guarantee pressure head guide pin bushing vertical with sample surfaces.
Described guide pin bushing two ends are the guide pin bushing edge of a knife of the friction force reduced between guide pin bushing and pressure head bar.
Described elevating mechanism is made up of leading screw, motor, gear and nut; Described motor drives leading screw by gear and nut; Described leading screw is connected with pressure mechanism through the via hole of pressure head bar lifting frame upper end of pressure mechanism, and leading screw is elevated thus drive pressure mechanism pressure head bar moves up and down, when the pressure head of pressure mechanism pushes down sample and after stopping, leading screw and pressure head bar lifting frame are thrown off.
Described motor connects electric control system.
Described pulley blocks force value enlarger is made up of large fixed pulley, little fixed pulley, travelling block, deflecting roller and wire rope; Described large fixed pulley and little fixed pulley coaxial and interlock; Described large fixed pulley is connected with the wire rope of balance weight mechanism by large fixed pulley, and wire rope one end of large fixed pulley is fixed on large fixed pulley, and the other end is fixed on balance weight mechanism; Described travelling block is connected with the wire rope of little fixed pulley by travelling block, and wire rope one end of travelling block is fixed on wire rope stiff end place, and the other end is fixed on little fixed pulley after deflecting roller; Described travelling block is installed in the middle of the pressure head bar lifting frame of pressure mechanism.
Described large fixed pulley and little fixed pulley radius ratio are n; The ratio of gear of large fixed pulley, little fixed pulley, travelling block is 2 × n; The balance weight of described balance weight mechanism is 250/n newton.
The length of wire rope and the hoisting depth of balance weight mechanism of described large fixed pulley adapt; The length of the wire rope of described travelling block is more than 2 times of travelling block lifting and descending stroke.
Described balance weight mechanism adjusts room by balance weight body, vitriol chamber and counterweight and forms; Have hole in described balance weight body, fuse into lead and be vitriol chamber in hole, the clearance spaces left in the hole in balance weight body is as counterweight adjustment room; The observed pressure of the standard force-measuring meter placed below the indoor pressure head be equipped with according to pressure mechanism of described counterweight adjustment carries out the plumbous sand adjusted.
Principle of work of the present utility model and the course of work: the pressure head of master gauge sizing shape is arranged on the pressure head bar bottom perpendicular to surface level are the example platform installing sample below pressure head.Pressure head bar is contained in a clearance fit with it, and two ends have in the guide pin bushing of the edge of a knife, and guide pin bushing ensures the vertical of pressure head bar, and the edge of a knife ensures that pressure head bar freely slides up and down in guide pin bushing and resistance is minimum.A pressure head bar lifting frame is established in pressure head bar upper end, and be roller and the travelling block of a circumferential trough of belt in the middle of pressure head bar lifting frame, wheel shaft is located on pressure head bar lifting frame wall, and pressure head bar lifting frame upper end is a via hole.
In device, large fixed pulley and little fixed pulley radius ratio are n.Roller in the middle of above-mentioned pressure head bar lifting frame is as travelling block.Whole pulley drive ratio is 2 × n, and counterweight is connected with pulley finer wire.Ram pressures determined by master gauge is 500 newton, and after pulley blocks transmits, balance weight is about 250/n newton.Balance weight body is square steel ingot, inside has hole as vitriol chamber, fuses into lead, and leaves clearance spaces and adjust room as counterweight.Because pulley system internal drag is unknowable, verification pressure adopts measurement method, is placed in below pressure head with dynamometer, put down pressure head, put into adjustment in counterweight adjustment indoor and use plumbous sand, finally make dynamometer numerical value reach 500 newton ± 0.5 newton, the numerical range that standard specifies.
Use driven by motor nut, nut drives leading screw oscilaltion.Leading screw lower end is stretched in above-mentioned pressure head bar lifting frame top via, and leading screw lower end connector emits.This elevating mechanism is in order to promote and to put down pressure head bar and the pulley blocks be connected and balance weight mechanism, and when pressure head pushes down sample and after stopping, leading screw and pressure head bar lifting frame are thrown off, the force value of balance weight mechanism is pressed in pressure head bar upper end after being amplified by pulley blocks.
The a set of electric control system of another outfit, drives lifting motor in order to timing, completes experimentation and controls.
Superiority of the present utility model: 1, the utility model can complete pressure head rise automatically, setting-out, pressure-like, pressurize, regularly, at the end of experiment, pressure head rises and blows a whistle and reminds operator to carry out next a series of actions such as group experiment grade, is the mechanical hook-up that a special Full Featured semi-rigid earth material continues quantitatively to exert pressure; 2, compare with the existing simple weight method of exerting pressure, the utility model can complete the whole course of action needed for experiment; The precision of the force value between strict guarantee pressure head and sample; Impact without loading; Without the need to artificial carrying heavy goods up and down; Without the need to manual time-keeping; 3, compare with the universal testing machine method of exerting pressure, the utility model is the mechanical hook-up that a kind of special semi-rigid earth material continues quantitatively to exert pressure, and structure is simple, price is low, complete function, can greatly reduce universal testing machine occupied time, accurate, economical, succinct, reliable.
(4) accompanying drawing illustrates:
The structural representation of Fig. 1 device that a kind of double hard ground material continues quantitatively to exert pressure involved by the utility model.
Wherein, 1 is fuselage, and 2 is example platform, and 3 is pressure head, 4 is the guide pin bushing edge of a knife, and 5 is guide pin bushing, and 6 is wire rope stiff end, and 7 is pressure head bar, 8 is travelling block wire rope, and 9 is travelling block, and 10 is pressure head bar lifting frame, and 11 is nut, 12 is leading screw, and 13 is electric control system, and 14 is gear, and 15 is motor, 16 is little fixed pulley, and 17 is large fixed pulley, and 18 is the wire rope of large fixed pulley, and 19 is counterweight adjustment room, 20 is vitriol chamber, and 21 is balance weight body, and 22 is deflecting roller.
(5) embodiment:
Embodiment: the device (see Fig. 1) that a kind of double hard ground material continues quantitatively to exert pressure, is characterized in that it comprises example platform 2, pressure mechanism, elevating mechanism, pulley blocks force value enlarger and balance weight mechanism; Setting pressure mechanism above described example platform 2; Described pressure mechanism is connected with elevating mechanism, and is connected with balance weight mechanism by pulley blocks force value enlarger.
Described example platform 2 is fixing on the fuselage 1.(see Fig. 1)
Described pressure mechanism is made up of pressure head 3, pressure head bar 7 and pressure head bar lifting frame 10; Described pressure head bar 7 upper end is fixed on pressure head bar lifting frame 10, and pressure head 3 is installed in pressure head bar 7 lower end; Described pressure head bar 7 and pressure head 3 vertical with the sample surfaces be placed on example platform 2.(see Fig. 1)
Described pressure head bar 7 is arranged in guarantee pressure head 3 guide pin bushing 5 vertical with sample surfaces.(see Fig. 1)
Described guide pin bushing 5 two ends are the guide pin bushing edge of a knife 4 of the friction force reduced between guide pin bushing 5 and pressure head bar 7.(see Fig. 1)
Described elevating mechanism is made up of leading screw 12, motor 15, gear 14 and nut 11; Described motor 15 drives leading screw 12 by gear 14 and nut 11; Described leading screw 12 is connected with pressure mechanism through the via hole of pressure head bar lifting frame 10 upper end of pressure mechanism, leading screw 12 is elevated thus drives pressure mechanism pressure head bar 7 to move up and down, when the pressure head 3 of pressure mechanism pushes down sample and after stopping, leading screw 12 and pressure head bar lifting frame 10 are thrown off.(see Fig. 1)
Described motor 15 connects electric control system 13.(see Fig. 1)
Described pulley blocks force value enlarger is made up of large fixed pulley 17, little fixed pulley 16, travelling block 9, deflecting roller 22 and wire rope; Described large fixed pulley 17 is coaxial and interlock with little fixed pulley 16; Described large fixed pulley 17 is connected with the wire rope 18 of balance weight mechanism by large fixed pulley 17, and wire rope 18 one end of large fixed pulley 17 is fixed on large fixed pulley 17, and the other end is fixed on balance weight mechanism; Described travelling block 9 is connected by the wire rope of travelling block 9 with little fixed pulley 16, and wire rope one end of travelling block 9 is fixed on wire rope stiff end 6 place, and the other end is fixed on little fixed pulley 16 after deflecting roller 22; Described travelling block 9 is installed in the middle of the pressure head bar lifting frame 10 of pressure mechanism.(see Fig. 1)
Described large fixed pulley 17 and little fixed pulley 16 radius ratio are 5:2; The ratio of gear of large fixed pulley 17, little fixed pulley 16, travelling block 9 is 5; The balance weight of described balance weight mechanism is 100 newton.(see Fig. 1)
The length of wire rope and the hoisting depth of balance weight mechanism of described large fixed pulley 17 adapt; The length of the wire rope of described travelling block 9 is more than 2 times of travelling block 9 lifting and descending stroke.
Described balance weight mechanism adjusts room 19 by balance weight body 21, vitriol chamber 20 and counterweight and forms; Have hole in described balance weight body 21, fuse into lead and be vitriol chamber 20 in hole, the clearance spaces left in the hole in balance weight body 21 is as counterweight adjustment room 19; Described counterweight adjustment room 19 is built with the plumbous sand carrying out adjusting according to the observed pressure of the standard force-measuring meter placed below the pressure head 3 of pressure mechanism.(see Fig. 1)
The principle of work of the present embodiment and the course of work: the pressure head 3 of master gauge sizing shape is arranged on pressure head bar 7 bottom perpendicular to surface level, pressure head 3 is the example platform 2 installing sample below.Pressure head bar 7 is contained in a clearance fit with it, and two ends have in the guide pin bushing 5 of the edge of a knife 4, and guide pin bushing 5 ensures the vertical of pressure head bar 7, and the edge of a knife 4 ensures that pressure head bar 7 freely slides up and down in guide pin bushing 5 and resistance is minimum.A pressure head bar lifting frame 10 is established in pressure head bar 7 upper end, and be roller and the travelling block 9 of a circumferential trough of belt in the middle of pressure head bar lifting frame 10, wheel shaft is located on pressure head bar lifting frame 10 wall, and pressure head bar lifting frame 10 upper end is a via hole.
In device, large fixed pulley 17 and little fixed pulley 16 radius ratio are n.Roller in the middle of above-mentioned pressure head bar lifting frame 10 is as travelling block 9.Whole pulley drive ratio is 2 × n, and counterweight is connected with pulley finer wire.Master gauge level pressure 3 pressure are 500 newton, and after pulley blocks transmits, balance weight is about 250/n newton.Balance weight body 21 is square steel ingot, inside has hole as vitriol chamber 20, fuses into lead, and leaves clearance spaces as counterweight adjustment room 19.Because pulley system internal drag is unknowable, verification pressure adopts measurement method, is placed in below pressure head 3 with dynamometer, put down pressure head 3, in counterweight adjustment room 19, put into adjustment use plumbous sand, finally make dynamometer numerical value reach 500 newton ± 0.5 newton, the numerical range that standard specifies.
Drive nut 11 with motor 15, nut 11 drives leading screw 12 oscilaltion.Leading screw 12 lower end is stretched in above-mentioned pressure head bar lifting frame 10 top via, and leading screw 12 lower end connector emits.This elevating mechanism is in order to promote and to put down pressure head bar 7 and the pulley blocks be connected and balance weight mechanism, and when pressure head 3 pushes down sample and after stopping, leading screw 12 and pressure head bar 7 lifting frame are thrown off, the force value of balance weight mechanism is pressed in pressure head bar 7 upper end after being amplified by pulley blocks.
The a set of electric control system 13 of another outfit, drives lifting motor 15 in order to timing, completes experimentation and controls.
Claims (10)
1. double hard ground material device of continuing quantitatively to exert pressure, is characterized in that it comprises example platform, pressure mechanism, elevating mechanism, pulley blocks force value enlarger and balance weight mechanism; Setting pressure mechanism above described example platform; Described pressure mechanism is connected with elevating mechanism, and is connected with balance weight mechanism by pulley blocks force value enlarger.
2. a kind of double hard ground material device of continuing quantitatively to exert pressure according to claim 1, is characterized in that described example platform is fixed on fuselage.
3. a kind of double hard ground material device of continuing quantitatively to exert pressure according to claim 1, is characterized in that described pressure mechanism is made up of pressure head, pressure head bar and pressure head bar lifting frame; Described pressure head bar upper end is fixed on pressure head bar lifting frame, and pressure head is installed in pressure head bar lower end; Described pressure head bar and pressure head vertical with the sample surfaces be placed on example platform.
4. a kind of double hard ground material device of continuing quantitatively to exert pressure according to claim 3, it is characterized in that described pressure head bar be arranged on ensure that pressure head is vertical with sample surfaces guide pin bushing in; Described guide pin bushing two ends are the guide pin bushing edge of a knife of the friction force reduced between guide pin bushing and pressure head bar.
5. a kind of double hard ground material device of continuing quantitatively to exert pressure according to claim 1, is characterized in that described elevating mechanism is made up of leading screw, motor, gear and nut; Described motor drives leading screw by gear and nut; Described leading screw is connected with pressure mechanism through the via hole of pressure head bar lifting frame upper end of pressure mechanism, and leading screw is elevated thus drive pressure mechanism pressure head bar moves up and down, when the pressure head of pressure mechanism pushes down sample and after stopping, leading screw and pressure head bar lifting frame are thrown off.
6. a kind of double hard ground material device of continuing quantitatively to exert pressure according to claim 5, is characterized in that described motor connects electric control system.
7. a kind of double hard ground material device of continuing quantitatively to exert pressure according to claim 1, is characterized in that described pulley blocks force value enlarger is made up of large fixed pulley, little fixed pulley, travelling block, deflecting roller and wire rope; Described large fixed pulley and little fixed pulley coaxial and interlock; Described large fixed pulley is connected with the wire rope of balance weight mechanism by large fixed pulley, and wire rope one end of large fixed pulley is fixed on large fixed pulley, and the other end is fixed on balance weight mechanism; Described travelling block is connected with the wire rope of little fixed pulley by travelling block, and wire rope one end of travelling block is fixed on wire rope stiff end place, and the other end is fixed on little fixed pulley after deflecting roller; Described travelling block is installed in the middle of the pressure head bar lifting frame of pressure mechanism.
8. a kind of double hard ground material device of continuing quantitatively to exert pressure according to claim 7, is characterized in that described large fixed pulley and little fixed pulley radius ratio are n; The ratio of gear of large fixed pulley, little fixed pulley, travelling block is 2 × n; The balance weight of described balance weight mechanism is 250/n newton.
9. a kind of double hard ground material device of continuing quantitatively to exert pressure according to claim 7, is characterized in that the length of wire rope of described large fixed pulley and the hoisting depth of balance weight mechanism adapt; The length of the wire rope of described travelling block is more than 2 times of travelling block lifting and descending stroke.
10. a kind of double hard ground material device of continuing quantitatively to exert pressure according to claim 1, is characterized in that described balance weight mechanism adjusts room by balance weight body, vitriol chamber and counterweight and forms; Have hole in described balance weight body, fuse into lead and be vitriol chamber in hole, the clearance spaces left in the hole in balance weight body is as counterweight adjustment room; The observed pressure of the standard force-measuring meter placed below the indoor pressure head be equipped with according to pressure mechanism of described counterweight adjustment carries out the plumbous sand adjusted.
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| CN201520144911.1U CN204479409U (en) | 2015-03-13 | 2015-03-13 | The device that a kind of double hard ground material continues quantitatively to exert pressure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595604A (en) * | 2020-11-25 | 2021-04-02 | 山东大学 | Table type material mechanics testing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112595604A (en) * | 2020-11-25 | 2021-04-02 | 山东大学 | Table type material mechanics testing machine |
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