CN104174786B - Hydraulic proportional length measurement system - Google Patents
Hydraulic proportional length measurement system Download PDFInfo
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- CN104174786B CN104174786B CN201410348000.0A CN201410348000A CN104174786B CN 104174786 B CN104174786 B CN 104174786B CN 201410348000 A CN201410348000 A CN 201410348000A CN 104174786 B CN104174786 B CN 104174786B
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- 238000005259 measurement Methods 0.000 title claims abstract description 43
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000002828 fuel tank Substances 0.000 claims description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 abstract description 123
- 239000010720 hydraulic oil Substances 0.000 abstract description 28
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000000205 computational method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010913 used oil Substances 0.000 description 1
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses a hydraulic proportional length measurement system which comprises a hydraulic proportional length measurement instrument, a length detection mechanism and an oil tank, wherein the hydraulic proportional length measurement instrument is used for controlling the length of a to-be-measured object, the length detection mechanism is used for detecting the length of the to-be-measured object, and the oil tank is used for loading oil for the hydraulic proportional length measurement system. During work, the to-be-measured object passes through a gap between a pressure wheel and a bottom wheel of the length detection mechanism after straightened, moves outward and drives the pressure wheel to rotate under the action of friction, the pressure wheel drives a metering pump to rotate, and an eccentric shaft of the metering pump compresses a plunger to move back and forth to achieve oil suction and compression. Hydraulic oil enters a metering oil cylinder through a solenoid valve and pushes a plunger rod to move outward, the plunger rod touches a travel switch and stops, and then the length of the to-be-measured object can be measured. With adoption of the design, a length measurement structure is simplified, the cost is reduced, the measurement is simple and convenient, all seal parts are sealed by sealing parts, the measurement accuracy is increased, and the hydraulic proportional length measurement system can be applied to a bar straightening cut-off machine and other places requiring length measurement.
Description
Technical field
The present invention relates to surveying long technical field, more particularly, to hydraulic proportional surveys long technology.
Background technology
In traditional cutting machine, measurement cut material product length generally adopt two methods, a kind of method be using fixed length away from
From travel switch control, will travel switch set to required extension position, the cut material product of straightening encounter setting row
During Cheng Kaiguan, then cut material product reach length to be cut off, and cut material product are cut off, when cut-out cut material product are very long, OK
The position of Cheng Kaiguan setting is also very long, then need reserved longer space in plant equipment, and increased space to equipment will
Ask, the accuracy of measurement is not high, operation is also very inconvenient；Another kind of method is using electronic gauge measurement, by electron number
The mode of control measures the length of cut material, and the piece volumes of the method are less, save space, and measuring accuracy is high, but price is relatively
Height, sometimes performance be not sufficiently stable.
Content of the invention
The invention provides a kind of hydraulic proportional length measurement system, solve above-mentioned prior art problem one or more.
According to an aspect of the present invention, the hydraulic proportional length measurement system providing, including hydraulic proportional horizontal metroscope, length inspection
Survey mechanism, fuel tank and oil pipe, wherein:
Hydraulic proportional horizontal metroscope, including support, screw bolt seat, adjustment screw rod, the first stroke switch frame, the second travel switch
Frame, the first travel switch, the second travel switch, metering oil cylinder and magnetic valve, screw bolt seat is arranged on support, and adjustment screw rod passes through
Nut is arranged on screw bolt seat, and the first stroke switch frame and the second travel switch frame are set in adjustment screw rod and are fixedly connected on
On frame, the first travel switch and the second travel switch are separately mounted on the first stroke switch frame and the second travel switch frame, meter
Gauging cylinder is fixed on support, and magnetic valve is located at support avris, and metering oil cylinder is connected with magnetic valve oil pipe；
Length detection mechanism, including base, spring seat assembly, return pulley group, press nips and measuring pump, return pulley group and press nips
Fixation is located on base, and the bottom fixation of spring seat assembly is located on base, and the spring in spring seat assembly is pressed in press nips,
Press nips are connected with measuring pump；
Metering oil cylinder is connected with measuring pump oil pipe by magnetic valve, and metering oil cylinder is by magnetic valve and fuel tank oil pipe
It is connected, measuring pump is connected with fuel tank oil pipe.
Its advantage is: hydraulic proportional horizontal metroscope, length detection mechanism and fuel tank are interconnected by oil pipe, realize liquid
Force feed uses in system interior circulation, and the motion of the length detection mechanism amount of falling into a trap pump drives hydraulic oil to flow in system, measuring pump
From fuel tank draw oil, then hydraulic oil is pushed to magnetic valve, metering oil cylinder is entered by magnetic valve, promotes piston and carry
Dynamic plunger rod motion, stop motion when plunger rod encounters set travel switch, thus obtaining the length of tested article, use
Solenoid valve control hydraulic oil enters the direction of metering oil cylinder, can circulate measurement length.This design structure is simple, small volume,
Save space for equipment, hydraulic oil can recycle, it is to avoid waste of material.
In some embodiments, the support of hydraulic proportional horizontal metroscope is provided with mounting groove, and one end of adjustment screw rod is stretched into
In mounting groove, outside mounting groove, the first stroke switch frame and the second travel switch frame are set in adjustment screw rod and stretch into peace the other end
One end in tankage, metering oil cylinder is located in mounting groove, the first travel switch and the second travel switch measuring the both sides of oil cylinder,
Measure in-oil cylinder plunger rod and the first travel switch, the second travel switch are located on same linear position.
Its advantage is: the position of the first stroke switch frame or the second travel switch frame can be adjusted by adjusting screw rod,
Thus adjusting the first travel switch or the position of the second travel switch, because measure in-oil cylinder plunger rod and the first travel switch,
Second travel switch is located on same linear position, and plunger rod moves to can be encountered stroke and open during travel switch setting position
Close, make plunger rod stop motion, thus the tested article of measured length set by equipment acquisition.
In some embodiments, metering oil cylinder includes gray iron, piston and plunger rod, and described cylinder cap is located at cylinder body
Two ends, piston is located in cylinder body, and inner chamber of cylinder block is divided into two oil pockets, i.e. the first oil pocket and the second oil pocket, the first oil pocket and
Two oil pockets are respectively equipped with tubing interface, i.e. a interface and b interface, and a interface is connected with measuring pump, fuel tank by magnetic valve oil pipe
Connect, b interface is connected with measuring pump, fuel tank by magnetic valve oil pipe, cylinder cap and piston are provided with and are matched with plunger rod external diameter
Hole, plunger rod passes through the hole of cylinder cap and piston, crosses inner chamber of cylinder block, piston piston pin is fixed on the interposition of plunger rod
Put.
Its advantage is: enters metering oil cylinder, magnetic valve by solenoid valve control hydraulic oil from a interface or b interface
During energising, hydraulic oil enters metering oil cylinder first oil pocket from a interface, promotes piston and plunger rod to move toward the second oil pocket, and second
Hydraulic oil in oil pocket flows into fuel tank by magnetic valve, and the travel switch that plunger rod encounters setting stops, and obtains and measures for the first time
Length；During magnetic valve power-off, hydraulic oil enters metering oil cylinder second oil pocket from b interface, promotes piston and plunger rod toward the first oil
Move in chamber, the hydraulic oil in the first oil pocket flows into fuel tank by magnetic valve, and the travel switch that plunger rod encounters setting stops, and obtains
Second measurement length；With this, it is possible to achieve circulation measurement length and hydraulic oil recycle, convenient and swift, it is to avoid hydraulic oil
Waste.
In some embodiments, the cross-sectional area of metering oil cylinder can be designed as arbitrary desirable value according to demand.
Its advantage is: can be according to the discharge capacity of measuring pump, the cross-sectional area measuring oil cylinder is designed as by the length of measurement
Required area, flexibly applies to the measurement of different length.
In some embodiments, return pulley group includes return pulley, and press nips include pinch roller, rotating shaft, return pulley group and press nips phase
To setting, return pulley group is located at below press nips, and tested article is clipped between return pulley and pinch roller, the bias of described rotating shaft and measuring pump
Axle is connected.
Its advantage is: passes through between return pulley and pinch roller after tested article straightening, outward movment, drives pinch roller fortune
Dynamic, thus driving pivot, the eccentric shaft of measuring pump follows pivot.
In some embodiments, measuring pump include the pump housing, plunger, plunger spring, oil pipe, force feed spring, oil suction spring,
Spring base, steel ball and eccentric shaft, the pump housing left and right sides is provided with plunger hole, and plunger is located at plunger in the hole, and plunger at one end is provided with plunger
Spring, the other end is contacted with eccentric shaft, and pump housing upper and lower sides are provided with valve body, and force feed spring is located in the valve opening of upside valve body, pressure
Oily spring one end is connected with spring base, and the other end is provided with steel ball, the internal diameter with diameter greater than oil pipe of steel ball, and oil suction spring is located at
In the valve opening of downside valve body, oil suction spring one end is fixed in the valve opening of downside valve body, and the other end is provided with steel ball, and oil suction spring is stretched
When long, steel ball is encountered and is stuck in inside spring base, and the outer end of spring base is exposed at outside the pump housing, the valve opening of upside valve body and downside valve body
Valve opening be connected with plunger hole by oil pipe, the valve opening of upside valve body passes through a interface of magnetic valve oil pipe and measuring pump, b
Interface is connected, and the valve opening oil pipe of downside valve body is connected with fuel tank, and eccentric shaft is located at pump housing centre position.
Its advantage is: press nips drive eccentric shaft turns, and eccentric shaft compression plunger moves back and forth, and realizes oil suction and pressure
Oil, oil suction spring place valve opening is connected with fuel tank, during oil suction, from fuel tank draw oil, pushes to force feed spring place valve
Hole, during force feed, hydraulic oil is pushed to metering oil cylinder by magnetic valve, realizes hydraulic oil from fuel tank to the flowing of metering oil cylinder.
In some embodiments, all sealing positions all adopt seal.
Its advantage is: reduces the loss of hydraulic oil using seal, improves the precision of measurement.
The operation principle of hydraulic proportional length measurement system of the present invention is: passes through in length detection mechanism after tested article straightening
Between press nips and return pulley group, outward movment, in the presence of frictional force, drive pinch roller to rotate, pinch roller drives measuring pump to rotate,
The eccentric wheel compression plunger of measuring pump moves back and forth, and realizes oil suction and force feed, and hydraulic oil enters metering oil cylinder by magnetic valve, pushes away
Dynamic plunger rod outward movment, plunger rod is encountered travel switch and is stopped, and now can measure the length of tested article.When magnetic valve breaks
When electric, hydraulic oil enters oil cylinder tubing interface b interface, and plunger rod moves to the first oil pocket, when plunger rod runs to the first stroke
Stop during switch setting position, measure length l1 of tested article；Solenoid valves commutate, and hydraulic oil enters oil cylinder oil pipe and connects
Mouth a interface, plunger rod moves toward the second oil pocket, stops when plunger rod runs to the second travel switch setting position, measures
Length l2 of tested article；So iterative cycles, can continuously measure tested article length.
Device parameter can obtain according to following computational methods and correspond to parameter value:
Length l of tested article, the diameter phi of pinch roller, the internal diameter d of metering oil cylinder, plunger rod bar footpath d, the discharge capacity of measuring pump
Q,
Metering revolution speed n=l/ π φ (rpm)
Metering pump discharge q=q.n (l2)
Area a=(the π d of metering oil cylinder2-πd2)/4 (cm2)
Stroke h=q ÷ a (cm) of metering oil cylinder
The beneficial effect of hydraulic proportional length measurement system of the present invention is: simplifies measurement length structure, reduces cost, measurement letter
Single, convenient, all sealing positions all adopt seal, improve certainty of measurement, can be used for concrete-bar straightening-cutting machine and other surveys
The place of amount length.
Brief description
Fig. 1 is the hydraulic proportional length measurement system structural representation of one embodiment of the present invention；
Fig. 2 is the length detection mechanism structural representation of one embodiment of the present invention；
Fig. 3 is the length detection mechanism side view of one embodiment of the present invention；
Fig. 4 is the metering oil cylinder sectional view of one embodiment of the present invention；
Fig. 5 is the hydraulic proportional horizontal metroscope structure sectional view of one embodiment of the present invention；
Fig. 6 is the hydraulic proportional horizontal metroscope side view of one embodiment of the present invention；
Fig. 7 is the measuring pump structure sectional view of one embodiment of the present invention；
Fig. 8 is the measuring pump structure side view cutaway drawing of one embodiment of the present invention.
Specific embodiment
With reference to Figure of description, the present invention is described in more detail.
With reference to Fig. 1: hydraulic proportional length measurement system of the present invention, including hydraulic proportional horizontal metroscope 1, length detection mechanism 2 and oil
Case 3, wherein: hydraulic proportional horizontal metroscope 1 is used for controlling tested article length；Length detection mechanism 2 is used for detecting that tested article is long
Degree；Fuel tank 3 is used for loading hydraulic oil used by hydraulic proportional length measurement system.Metering oil cylinder 15 passes through magnetic valve 19 and measuring pump 24 is used
Oil pipe 4 connects, and metering oil cylinder 15 is connected with oil pipe 4 with fuel tank 3 by magnetic valve 19, and measuring pump 24 and fuel tank 3 pass through oil pipe 4 even
Logical.
As shown in Figures 2 and 3, hydraulic proportional horizontal metroscope 1 includes support 16, screw bolt seat 13, adjustment screw rod 11, the first stroke
Switch frame 14, the second travel switch frame 17, the first travel switch 20, the second travel switch 18, metering oil cylinder 15 and magnetic valve 19.
Two screw bolt seats 13 are oppositely arranged on the both sides of support 16, and adjustment screw rod 11 is respectively fixedly disposed at two screw rods by nut 12
On seat 13.Support 16 is provided with mounting groove, and one end of adjustment screw rod 11 is stretched in mounting groove, and the other end is outside mounting groove.First
Travel switch frame 14 and the second travel switch frame 17 are set in one end that adjustment screw rod 11 stretches in mounting groove, and are fixedly connected on
Support 16 both sides, the first travel switch 20 and the second travel switch 18 are separately mounted to the first stroke switch frame 14 and the second stroke
On switch frame 17, so, the position of the first stroke switch frame 14 or the second travel switch frame 17 can be adjusted by adjusting screw rod 11,
Thus adjusting the first travel switch 20 or the position of the second travel switch 18.Metering oil cylinder 15 is fixed on the mounting groove of support 16
Interior, the first stroke switch frame 14 and the second travel switch frame 17 in the both sides of metering oil cylinder 15, with plunger rod on the same line,
Magnetic valve 19 is located at support 16 avris, and metering oil cylinder 15 is connected with oil pipe 4 with magnetic valve 19.
As shown in figure 4, metering oil cylinder 15 includes cylinder body 152, cylinder cap 151, piston 154 and plunger rod 153.Cylinder cap 151 sets
At cylinder body 152 two ends, piston 154 is located in cylinder body 152, cylinder body 15 inner chamber is divided into two oil pockets, i.e. the first oil pocket 1521 He
Second oil pocket 1522, the first oil pocket 1521 and the second oil pocket 1522 are respectively equipped with tubing interface, i.e. a interface and b interface.Cylinder cap
151 and piston 154 be provided with the hole matching with plunger rod 153 external diameter, plunger rod 153 passes through the hole of cylinder cap 151 and piston 154,
Cross cylinder body 152 inner chamber, piston 154 is fixed on the centre position of plunger rod 153 with piston pin 155.Hydraulic oil enters from b interface
During the second oil pocket 1522, piston 154 moves toward the first oil pocket 1521, so plunger rod 153 with piston 154 toward the first oil pocket 1521
Motion, stops when plunger rod 153 moves to the first travel switch 20 setting position, completes one-shot measurement；Hydraulic oil is from a interface
When entering the first oil pocket, piston 154 moves toward the second oil pocket 1522, so plunger rod 153 with piston 154 toward the second oil pocket 1522
Motion, stops when plunger rod 153 moves to the second travel switch 18 setting position, then completes one-shot measurement；So circulate, can
To be carried out continuously linear measure longimetry.
As shown in Figure 5 and Figure 6, length detection mechanism includes base 21, return pulley group 22, press nips 23, spring seat assembly 25
With measuring pump 24.Return pulley group 22 and press nips 23 are fixed on base 21, and return pulley group 22 is located at below press nips 23, return pulley group 22
Return pulley 221 be oppositely arranged with the pinch roller 231 of press nips 23, the rotating shaft 232 of press nips 23 is connected with measuring pump 24, spring base group
Part 25 is fixed on base 21, and the spring 251 of spring seat assembly 25 is pressed in press nips 23.Pass through pinch roller after tested article straightening
Between 231 and return pulley 221, outward movment, in the presence of frictional force, drive pinch roller 231 to rotate, the rotating shaft of pinch roller assembly 23
232 rotate with pinch roller 231, thus driving measuring pump 24 to rotate, the spring 251 being pressed on pinch roller assembly 23 plays buffering and makees
With making pinch roller 231 and rotating shaft 232 smooth rotation.
As shown in Figure 7 and Figure 8, measuring pump 24 includes the pump housing 241, plunger 242, plunger spring 243, force feed spring 246, inhales
Oily spring 248, spring base 247, steel ball 245 and eccentric shaft 2411, the described pump housing 241 left and right sides is provided with plunger hole 244, described
Plunger 242 is located in plunger hole 244, and described plunger 242 one end is provided with plunger spring 243, and the other end is connected with eccentric shaft 2411
Touch, the pump housing 241 upper and lower sides are provided with valve body, for improving operating efficiency, upper and lower sides valve body is all set to two, force feed spring 246 is located at
In the valve opening of upside valve body 249, force feed spring 246 one end is connected with spring base 247, and the other end is provided with steel ball 245, steel ball
245 internal diameter with diameter greater than oil pipe 4, oil suction spring 248 is located in the valve opening of downside valve body 2410, oil suction spring 248 one end
It is fixed in the valve opening of downside valve body 2410, the other end is provided with steel ball 245, and during oil suction spring 248 elongation, steel ball 245 is encountered simultaneously
It is stuck on spring base 247, the outer end of spring base 247 is exposed at outside the pump housing 241, the valve opening of upside valve body 249 and downside valve body 2410
Valve opening be connected with plunger hole 244 by oil pipe 4, the valve opening of upside valve body 249 passes through magnetic valve 19 oil pipe 4 and measuring pump
24 are connected, and the valve opening oil pipe 4 of downside valve body 2410 is connected with fuel tank 3, and eccentric shaft 2411 is located at the pump housing 241 interposition
Put, eccentric shaft 2411 is fixedly connected with the rotating shaft 232 of press nips 23.Rotating shaft 232 is followed pinch roller 231 and is moved, and drives measuring pump 24
Eccentric shaft 2411 move, eccentric shaft 2411 compression plunger 242 moves reciprocatingly, and realizes oil suction and force feed, with oil suction spring 246
The oil pipe 4 that place valve body 249 is connected is from fuel tank 3 draw oil, and hydraulic oil is pushed to force feed spring 248 place valve body
2410, then metering oil cylinder 15 is pushed to by magnetic valve 19, when the steel ball 245 on oil suction spring 248 withstands spring base 247,
Complete an oil suction, when the steel ball 245 on force feed spring 246 withstands oil pipe 4, complete once to press oil.
All sealing positions of hydraulic proportional length measurement system of the present invention all adopt seal, such as in metering oil cylinder 15, cylinder cap
151 use " o " sealing ring 158 with cylinder body 152 junction, and plunger rod 153 uses axle sealing ring 156 with cylinder head bore junction,
Piston 154 uses hole sealing ring 157 etc. with cylinder body 152 the tangent, to prevent the degree of accuracy of hydraulic fluid leak impact measurement.
The operation principle of hydraulic proportional length measurement system of the present invention: pass through in length detection mechanism 2 after tested article straightening
Between pinch roller 231 and return pulley 221, outward movment, in the presence of frictional force, drive pinch roller 231 to rotate, pinch roller 231 drives meter
The eccentric shaft 2411 of amount pump 24 rotates, and eccentric shaft 2411 compression plunger 242 moves back and forth, and makes measuring pump 24 realize oil suction and pressure
Oil, hydraulic oil passes through magnetic valve 19 and enters metering oil cylinder 15, promotes plunger rod 153 outward movment, plunger rod 153 encounters the first row
Cheng Kaiguan 20 or the second travel switch 18 stop, and now can measure the length of tested article.When magnetic valve 19 power-off, hydraulic pressure
Oil from measuring pump 24 enter metering oil cylinder 15 tubing interface b interface, enter metering oil cylinder the second oil pocket 1522, plunger rod 153 to
First oil pocket 1521 moves, and the hydraulic oil in the first oil pocket 1521 flows into fuel tank 3 by magnetic valve 19, when plunger rod 153 runs
Stop to during the first travel switch 20 setting position, the hydraulic oil stop motion in system, measure length l1 of tested article；
Magnetic valve 19 energising commutation, hydraulic oil enters metering oil cylinder 15 tubing interface a interface from measuring pump 24, enters metering oil cylinder first
Oil pocket 1521, plunger rod 153 moves toward the second oil pocket 1522, and the hydraulic oil in the second oil pocket 1522 flows into oil by magnetic valve 19
Case 3, stops when plunger rod 153 runs to the second travel switch 18 setting position, and the hydraulic oil in system stops flowing, measurement
Go out length l2 of tested article；So iterative cycles, can continuously measure tested article length.
Device parameter can obtain according to following computational methods and correspond to parameter value:
Length l of tested article, the diameter phi of pinch roller 232, internal diameter d, the plunger rod 153 bar footpath d of metering oil cylinder 15, metering
Discharge capacity q of pump 24,
Measuring pump 24 rotating speed n=l/ π φ (rpm)
Measuring pump 24 flow q=q.n (l2)
Area a=(the π d of metering oil cylinder 152-πd2)/4 (cm2)
Stroke h=q ÷ a (cm) of metering oil cylinder 15
The above be only the preferred embodiment of the present invention it is noted that to those skilled in the art, not
On the premise of departing from the invention design, some similar deformation and improvement can also be made, these also should be regarded as the present invention
Protection domain in.
Claims (7)
1. hydraulic proportional length measurement system, including hydraulic proportional horizontal metroscope (1), length detection mechanism (2), fuel tank (3) and oil pipe
(4), wherein:
Described hydraulic proportional horizontal metroscope (1), including support (16), screw bolt seat (13), adjustment screw rod (11), the first stroke switch frame
(14), the second travel switch frame (17), the first travel switch (20), the second travel switch (18), metering oil cylinder (15) and electromagnetism
Valve (19), described screw bolt seat (13) is arranged on support (16), and described adjustment screw rod (11) is arranged on screw rod by nut (12)
On seat (13), described first stroke switch frame (14) and the second travel switch frame (17) are set in adjustment screw rod (11) above and fix
It is connected on support (16), the first travel switch (20) and the second travel switch (18) are separately mounted to the first stroke switch frame
(14), on and the second travel switch frame (17), described metering oil cylinder (15) is fixed on support (16), and described magnetic valve (19) sets
In support (16) avris, measure oil cylinder (15) and be connected with oil pipe with magnetic valve (19)；
Described length detection mechanism (2), including base (21), spring seat assembly (25), return pulley group (22), press nips (23) and meter
Amount pump (24), described return pulley group (22) and press nips (23) fixation are located on base (21), the bottom of described spring seat assembly (25)
End fixation is located on base (21), and the spring (251) in spring seat assembly (25) is pressed in press nips (23), described press nips
(23) it is connected with measuring pump (24)；
Described metering oil cylinder (15) is connected with oil pipe (4) with measuring pump (24) by magnetic valve (19), and metering oil cylinder (15) is led to
Cross magnetic valve (19) to be connected with oil pipe (4) with fuel tank (3), measuring pump (24) is connected with oil pipe (4) with fuel tank (3).
2. hydraulic proportional length measurement system according to claim 1 is it is characterised in that described support (16) is provided with installation
Groove, one end of adjustment screw rod (11) is stretched in mounting groove, the other end outside mounting groove, described first stroke switch frame (14) and the
Two travel switch framves (17) are set in one end that adjustment screw rod (11) is stretched in mounting groove, and described metering oil cylinder (15) is located at installation
In groove, the first travel switch (20) and the second travel switch (18) are in the both sides of metering oil cylinder (15), metering oil cylinder (15)
Plunger rod (153) and the first travel switch (20), the second travel switch (18) are located on same linear position.
3. hydraulic proportional length measurement system according to claim 1 is it is characterised in that described metering oil cylinder (15) includes cylinder body
(152), cylinder cap (151), piston (154) and plunger rod (153), described cylinder cap (151) is located at cylinder body (152) two ends, piston
(154) it is located in cylinder body (152), cylinder body (152) inner chamber is divided into two oil pockets, i.e. the first oil pocket (1521) and the second oil pocket
(1522), described first oil pocket (1521) and the second oil pocket (1522) are respectively equipped with tubing interface, i.e. a interface and b interface, and a connects
Mouth is connected with measuring pump (24), fuel tank (3) with oil pipe (4) by magnetic valve (19), and b interface uses oil pipe by magnetic valve (19)
(4) it is connected with measuring pump (24), fuel tank (3), described cylinder cap (151) and piston (154) are provided with and plunger rod (153) external diameter phase
The hole of coupling, described plunger rod (153) passes through the hole of cylinder cap (151) and piston (154), crosses cylinder body (152) inner chamber, described work
Plug (154) is fixed on the centre position of plunger rod (153) with piston pin (155).
4. the hydraulic proportional length measurement system according to any one of claims 1 to 3 is it is characterised in that described metering oil cylinder
(15) cross-sectional area can be designed as arbitrary required area value according to demand.
5. hydraulic proportional length measurement system according to claim 1 is it is characterised in that described return pulley group (22) includes return pulley
(221), described press nips (23) include pinch roller (231) and rotating shaft (232), and return pulley group (22) is oppositely arranged with press nips (23),
Return pulley group (22) is located at press nips (23) below, and tested article is clipped between return pulley (221) and pinch roller (231), described rotating shaft
(232) it is connected with the eccentric shaft (2411) of measuring pump (24).
6. hydraulic proportional length measurement system according to claim 1 is it is characterised in that described measuring pump (24) includes the pump housing
(241), plunger (242), plunger spring (243), force feed spring (246), oil suction spring (248), spring base (247), steel ball
(245) and eccentric shaft (2411), the described pump housing (241) left and right sides is provided with plunger hole (244), and described plunger (242) is located at post
In consent (244), described plunger (242) one end is provided with plunger spring (243), and the other end is contacted with eccentric shaft (2411), pump
Body (241) upper and lower sides are provided with valve body, and described force feed spring (246) is located in the valve opening of upside valve body (249), presses oil spring
(246) one end is connected with spring base (247), and the other end is provided with steel ball (245), described steel ball (245) with diameter greater than oil pipe
(4) internal diameter, described oil suction spring (248) is located in the valve opening of downside valve body (2410), and oil suction spring (248) one end is fixed on
In the valve opening of downside valve body (2410), the other end is provided with steel ball (245), and during oil suction spring (248) elongation, steel ball (245) is encountered
And it is stuck in inside spring base (247), the outside of described spring base (247) is exposed at the pump housing (241) outward, the valve of upside valve body (249)
Hole is connected with plunger hole (244) by oil pipe (4) with the valve opening of downside valve body (2410), the valve of described upside valve body (249)
Hole is connected with a interface of metering oil cylinder (15), b interface with oil pipe (4) by magnetic valve (19), the valve of downside valve body (2410)
Hole oil pipe (4) is connected with fuel tank (3), and described eccentric shaft (2411) is located at the pump housing (241) centre position.
7. the hydraulic proportional length measurement system according to any one of claim 1,2,3,5 or 6 is it is characterised in that all sealings
Position all adopts seal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410348000.0A CN104174786B (en) | 2014-07-21 | 2014-07-21 | Hydraulic proportional length measurement system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410348000.0A CN104174786B (en) | 2014-07-21 | 2014-07-21 | Hydraulic proportional length measurement system |
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| CN104174786B true CN104174786B (en) | 2017-01-18 |
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|---|---|---|---|---|
| CN104675803B (en) * | 2015-02-15 | 2017-01-04 | 浙江理工大学 | A kind of link-type oil cylinder piston stroke measuring device |
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| SU431938A1 (en) * | 1970-11-06 | 1974-06-15 | ||
| DD115384A1 (en) * | 1974-09-20 | 1975-09-20 | ||
| CN2593935Y (en) * | 2002-12-20 | 2003-12-24 | 张永生 | Hydraulic steel bar cutter |
| CN201463805U (en) * | 2009-06-22 | 2010-05-12 | 宝山钢铁股份有限公司 | Slab width gauge |
| CN203249610U (en) * | 2013-05-02 | 2013-10-23 | 甘肃蓝科石化高新装备股份有限公司 | Steel tube length measurement device |
| CN104096784A (en) * | 2014-07-01 | 2014-10-15 | 吴家集 | Rebar straightening cutoff machine |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU431938A1 (en) * | 1970-11-06 | 1974-06-15 | ||
| DD115384A1 (en) * | 1974-09-20 | 1975-09-20 | ||
| CN2593935Y (en) * | 2002-12-20 | 2003-12-24 | 张永生 | Hydraulic steel bar cutter |
| CN201463805U (en) * | 2009-06-22 | 2010-05-12 | 宝山钢铁股份有限公司 | Slab width gauge |
| CN203249610U (en) * | 2013-05-02 | 2013-10-23 | 甘肃蓝科石化高新装备股份有限公司 | Steel tube length measurement device |
| CN104096784A (en) * | 2014-07-01 | 2014-10-15 | 吴家集 | Rebar straightening cutoff machine |
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| Publication number | Publication date |
|---|---|
| CN104174786A (en) | 2014-12-03 |
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