CN208238771U - Reusable large range high precision separation indicator - Google Patents

Reusable large range high precision separation indicator Download PDF

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Publication number
CN208238771U
CN208238771U CN201820897879.8U CN201820897879U CN208238771U CN 208238771 U CN208238771 U CN 208238771U CN 201820897879 U CN201820897879 U CN 201820897879U CN 208238771 U CN208238771 U CN 208238771U
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CN
China
Prior art keywords
gear
anchor head
lining rope
separation indicator
reading
Prior art date
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Withdrawn - After Issue
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CN201820897879.8U
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Chinese (zh)
Inventor
孟波
靖洪文
杨圣奇
方尧
危俊杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xuzhou Wance Mine Technology Co ltd
China University of Mining and Technology CUMT
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Xuzhou Wance Mine Technology Co ltd
China University of Mining and Technology CUMT
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Priority to CN201820897879.8U priority Critical patent/CN208238771U/en
Application granted granted Critical
Publication of CN208238771U publication Critical patent/CN208238771U/en
Withdrawn - After Issue legal-status Critical Current
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Abstract

The utility model discloses a kind of reusable large range high precision separation indicators, and separation indicator may be reused using expansion anchor head;Using mechanically with the reading dial of fluorescence digital, it being made also to facilitate reading in dim environment;The measurement accuracy of separation indicator is substantially increased using the transfer motion speed changing gear group that scroll spring drum and multibilayer gear form and expands its measurement range.It is by mounting rod that the expansion anchor head push-in drilling of test device is interior to test depth that it, which installs measurement method, lining rope pulls drum to tighten scroll spring in drum to a certain degree during installation anchor head, when internal country rock deforms, expansion anchor head affects lining rope, lining rope drives frictional disk to rotate frictional disk, and frictional disk, which drives coaxial transfer motion speed changing gear group to rotate, increases reading dial reading.The utility model has numerous advantages such as precision is high, range is big, reusable, small in size, adaptable, strong antijamming capability, operate conveniently, expense is low.

Description

Reusable large range high precision separation indicator
Technical field
The utility model relates to a kind of deformation in surrounding rock, absciss layer measuring device, and in particular to a kind of reusable a large amount of Journey high-precision separation indicator.
Background technique
Geotechnical engineering deformation in surrounding rock absciss layer is the response that country rock acts on pressure, is emitted to ground method for collapsed underground engineering The generation of the disasters such as top has important indicative function.Geotechnical engineering deformation in surrounding rock absciss layer measurement is to carry out surrounding rock stability Analysis is realized ground underground engineering layout, is excavated, the call parameter of design of its support science decision.
The device measured at present to underground engineering absciss layer is mainly separation indicator, different according to the physical means of monitoring, mainly It is divided into electronics separation indicator and mechanical separation indicator.Electronics separation indicator due to install it is complicated for operation, at high cost, can not be multiplexed, precision is low, It needs individually to power, cause narrow scope of application vulnerable to the problems such as underground wet environment influences, range is limited, at present underground engineering In be most widely used is still more structurally sound mechanical separation indicator.
Although mechanical separation indicator structural principle is simple, existing common mechanical separation indicator is equally lacked there is also very much It falls into:
1. anchor head is easy to loosen in drilling, anchoring effect is poor, especially the anchor head in the case where the wall of a borehole is more broken Loosening causes separation indicator reading that mistake or even separation indicator global failure occurs;
2. not reusable;Common separation indicator anchor head generally uses the structure of similar hangnail, is only capable of pushing movement into drilling, No normal direction drilling is outer mobile, can not be multiplexed after once mounting;
3. range is smaller;For common separation indicator due to being limited by external structure size, maximum range is generally 0.5m, nothing Method meets the deformation geotechnical engineering country rock that absciss layer is big and installation space is small and wants;
4. precision is lower and can not direct-reading;The scale of common separation indicator is arranged on reading wand, by reading wand size Limitation, precision are only capable of reaching 5~10mm;Since reading wand is round bar, when reading, can not see scale and number simultaneously, and need Number graduation mark just can determine that numerical values recited;And the form that scale is usually used printing or pastes is fixed on reading wand, pole Easily is carrying and abrasion and missing occur in use process.
Summary of the invention
In order to overcome deficiencies of the prior art, the utility model provides a kind of reusable large range high precision Separation indicator, measurement accuracy is high, range is big, reusable, while facilitating reading, and installing and dismounting is simple.
To solve the above-mentioned problems, a kind of reusable large range high precision separation indicator of the utility model, including be fixed on Drill the anchor head of position to be measured, the lining rope being connected with anchor head, the drum that is connected with the lining rope other end and measurement lining rope amount of movement Measuring device, drum and measuring device be installed in crust of the device, and the anchor head is expansion anchor head;Crust of the device passes through solid Determine anchor head to be anchored at drilling orifice;The drum includes scroll spring, fixing axle and wire spool, scroll spring and wire spool It is installed in fixing axle, lining rope is wrapped on wire spool by scroll spring;The measuring device includes friction pulley, transmission change Fast gear set and reading dial, one end of friction pulley are circle wheel with groove, and the other end is the gear of spline, is stretched out by wire spool Lining rope be wound in the groove of friction pulley, the center line of the inward flange of friction pulley groove and expansion anchor head is on same straight line; Transfer motion speed changing gear group is made of several groups double-layer gear, and every group of double-layer gear includes a gear wheel and a pinion gear, Gear wheel and pinion gear are fixed on crust of the device inner wall by gear shaft, the gear and one side double-layer gear of friction pulley one end In pinion gear engage input terminal as transfer motion speed changing gear group;Reading dial is mechanical reading dial, the input terminal of reading dial For pinion gear, the gear wheel of transfer motion speed changing gear group output end engages the rotation for driving pinion gear with the pinion gear on reading dial, The rotation of reading dial pinion gear drives the variation read on reading dial, and the side of reading dial is equipped with reset button.
Further, total transmission amplification factor of the transfer motion speed changing gear group meets the mobile 1mm drive reading dial of lining rope Pinion rotation one week.
Expansion anchor head is easily installed disassembly, and anchoring effect is good, and separation indicator may be reused;Lining rope passes through scroll spring It is wrapped on wire spool, lining rope is made to remain tension under the action of elastic force, when deformation occurs for rock stratum, due to whirlpool The effect of coil spring torque pulls lining rope to continue to keep tension while retraction, guarantees the measurement accuracy of separation indicator;Lining rope is logical It is connected after crossing friction pulley winding with expansion anchor head, on the one hand guarantees that lining rope is in the state that furthers vertically always, prevent from measuring Lining rope skids in journey, on the other hand, due on wire spool coiling number will affect the variation of its coiling disk diameter, if will be around Drum will cause the accuracy decline of measurement as direct-drive component, therefore using frictional disk as intermediate transmission structure, nothing It all will not influence the diameter change of frictional disk by the how many circles of lining rope winding on wire spool, so will not influence the accuracy of measurement; The mobile variation amplification several times of lining rope are substantially increased measurement essence by the transfer motion speed changing gear group being made up of multibilayer gear Degree;And measurement range is not limited to the lining rope length of drilling depth, further includes the length being wrapped on wire spool, therefore greatly improve The range of separation indicator;Reading dial is mechanical reading dial, and vertical variation depends on the rotation of the pinion gear of outside connection Angle, pinion rotation one are enclosed, and the reading of reading dial changes 1mm, and this mechanical reading dial failure rate is low, easy to use, nothing Power supply or other power-equipments are needed, therefore applied widely.
Further, the measurement accuracy of the reading dial is 0.1mm;Range is 0-9999.9mm.
By above structure can the measurement accuracy of this separation indicator greatly improve, can accurately react country rock inner layer variation rule Rule, more reference value;Mechanical separation indicator than before, 20 times of present apparatus range enlarged proximal, meeting most of operating conditions makes With.
As the preferred structure of expansion anchor head, the expansion anchor head includes outer anchor shell and interior expander, interior expander with outside Anchor shell is by being threadedly engaged, and the upper end of outer anchor shell, which is set, is provided with back taper through-hole, and if uniformly opening up on the outer wall of outer anchor shell dry and cracked Slot;The head of interior expander is inverted cone-shaped structure, and the angle between inclined surface and upper surface is less than back taper on outer anchor shell and leads to Angle between hole inclined surface and upper surface;Mounting hole is offered on interior expander.
Interior expander is moved up and down along outer anchor head inner wall by being threadedly engaged between interior expander and outer anchor shell, due to Angle between interior expander inclined surface and upper surface is less than the angle on outer anchor shell between back taper through-hole inclined surface and upper surface, Therefore when interior expander is moved down relative to outer anchor shell, the back taper through-hole that the inclined-plane of interior expander squeezes outer anchor shell makes outer Anchor shell is expanded and is fixed on drill hole inner wall, and this structure anchor is reliable, can also be freely disassembled.
The structure of the expansion anchor head is not limited to above description structure, as long as the structure that can be freely disassembled can be real Existing above-mentioned purpose.
In order to further increase the frictional force of friction pulley, prevent from skidding in lining rope moving process, the groove liner of friction pulley For high frictional force abrasive rubber;The lining rope that wire spool stretches out wiring one week in the groove of friction pulley.
Since down-hole light is weaker, for the ease of reading, the number on the reading dial has fluorescence display function Energy.Reading on reading dial is to drive to change by pinion gear, therefore compared to common reading wand, missing not easy to wear, Simultaneously convenient for reading.
Further, the lining rope is steel strand wires, and length is not less than the sum of test depth and drum winding lining rope length.
Further, the mounting hole opened up on interior expander is square hole, is provided with L-type mounting groove, and mounting groove on side wall It is penetrated through with square hole.Mounting hole and mounting groove are inserted into mounting rod by square hole and are consolidated using L-type mounting groove for mounting rod setting Determine mounting rod, prevents mounting rod from falling off during rotary expansion anchor head.
A kind of installation measurement method of reusable large range high precision separation indicator, which is characterized in that include the following steps
The first step drills according to country rock situation construction and installation;
Second step tightens scroll spring in drum from one section of lining rope of pull-out in separation indicator, it is ensured that remaining in separation indicator to survey Rope length degree is not less than 10m;
Mounting rod is inserted into expansion anchor head in the square hole of expander, by mounting rod by separation indicator expansible anchor by third step To test depth in head push-in drilling, recycles mounting rod to rotate clockwise interior expander, make outer anchor shell along splitting on outer wall Slot expands, so that expansion anchor head be made to be fixed on drill hole inner wall;
Separation indicator crust of the device is fixed on drilling orifice by fixed anchor head by the 4th step, reads reading dial records of values Bore inner expands anchor head fitting depth, presses reading dial reset button, reading dial is made to be zeroed, separation indicator installs;
5th step is periodically read and is recorded to separation indicator reading according to certain observing frequency;
When needing to take out after the completion of the 6th step, separation indicator use, separation indicator host is pulled up from drilling orifice, it then will peace It fills bar to be pushed into drilling and make expansion anchor head be detached from brill wall with progress rotation counterclockwise after anchor head contacts card jail is expanded, utilizes mounting rod Remove expansion anchor head;Reading dial reset button is pressed simultaneously, reading dial is made to be zeroed, in case next time uses.
Further, the head of the mounting rod is square pole, and the top of square pole is equipped with pin;
In third step, when mounting rod is mounted in interior expander, pin to be made to be mounted on interior expander L shape mounting groove In short side slot.
Separation indicator may be reused using expansion anchor head in the utility model;Using mechanically with the reading of fluorescence digital Disk makes it also facilitate reading in dim environment;The transmission gear shift formed using scroll spring drum and multibilayer gear Gear set substantially increases the measurement accuracy of separation indicator and expands its measurement range;Installation and measurement method are easy to operate, Not only it can reflect that country rock compressed, but also can reflect country rock and stretch absciss layer.So the utility model has, precision is high, range is big, can answer With, numerous advantages such as small in size, reliable performance, adaptable, strong antijamming capability, structure are simple, operate conveniently, expense is low.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram;
Fig. 2 is the top view of crust of the device internal structure in Fig. 1;
Fig. 3 is the main view of the outer anchor shell of expansion anchor head in the utility model;
Fig. 4 is the A-A direction view of Fig. 3;
Fig. 5 is the main view that expander in anchor head is expanded in the utility model;
Fig. 6 is the B-B direction view of Fig. 5;
Fig. 7 is the structural schematic diagram of mounting rod.
In figure: 1, drilling;2, lining rope;3, crust of the device;4, anchor head is expanded;4.1, outer anchor shell;4.1.1, back taper through-hole; 4.1.2, split slot;4.2, interior expander;4.2.1, head;4.2.2, mounting hole;4.2.3, mounting groove;5, fixed anchor head;6, whirlpool Coil spring;7, fixing axle;8, wire spool;9, friction pulley;9.1, circle wheel;9.2, gear;10, transfer motion speed changing gear group;11, it reads Disk;11.1, pinion gear;11.2, reset button;12, mounting rod;12.1, pin.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawing.
As depicted in figs. 1 and 2, a kind of reusable large range high precision separation indicator, including it is fixed on 1 position to be measured of drilling Anchor head, the lining rope 2 being connected with anchor head, the drum that is connected with 2 other end of lining rope and the measuring device for measuring lining rope amount of movement, Drum and measuring device are installed in crust of the device 3, and the anchor head is expansion anchor head 4;Crust of the device 3 passes through fixed anchor head 5 It is anchored at drilling orifice;The drum includes scroll spring 6, fixing axle 7 and wire spool 8, scroll spring 6 and wire spool 8 It is installed in fixing axle 7, lining rope 2 is wrapped on wire spool 8 by scroll spring 6;The measuring device include friction pulley 9, Transfer motion speed changing gear group 10 and reading dial 11, one end of friction pulley 9 are circle wheel 9.1 with groove, and the other end is the tooth of spline Wheel 9.2, the lining rope 2 stretched out by wire spool 8 is wound in the groove of friction pulley 9, the inward flange and expansion anchor head 4 of 9 groove of friction pulley Center line on same straight line;Transfer motion speed changing gear group 10 is made of several groups double-layer gear, and every group of double-layer gear wraps A gear wheel and a pinion gear are included, gear wheel and pinion gear are fixed on 3 inner wall of crust of the device by gear shaft, friction pulley The gear 9.2 of 9 one end engages the input terminal as transfer motion speed changing gear group 10 with the pinion gear in the double-layer gear of one side;Reading Disk 11 is mechanical reading dial, and the input terminal of reading dial 11 is pinion gear 11.1, the canine tooth of 10 output end of transfer motion speed changing gear group Wheel engages the rotation for driving pinion gear 11.1 with the pinion gear 11.1 on reading dial 11, and the rotation of reading dial pinion gear 11.1 drives The side of the variation read on reading dial 11, reading dial 11 is equipped with reset button 11.2.
Further, total transmission amplification factor of the transfer motion speed changing gear group 10 meets the mobile 1mm drive reading of lining rope 2 Disk pinion gear 11.1 rotates one week.
Expansion anchor head 4 is easily installed disassembly, and anchoring effect is good, and separation indicator may be reused;Lining rope passes through scrollwork bullet Spring 6 is wrapped on wire spool 8, and lining rope 2 is made to remain tension under the action of elastic force, when deformation occurs for rock stratum, It pulls lining rope 2 to continue to keep tension while retraction since 6 torque of scroll spring acts on, guarantees the measurement essence of separation indicator Degree;Lining rope 2, which passes through, to be connected after friction pulley 9 is wound with expansion anchor head 4, on the one hand guarantees that lining rope 2 is in the state that furthers vertically always, Prevent in measurement process lining rope 2 to skid, on the other hand, due on wire spool 8 coiling number will affect its coiling disk diameter Variation, if using wire spool as direct-drive component will cause measurement accuracy decline, therefore using frictional disk 9 as Intermediate transmission structure, no matter lining rope winding is how many on wire spool is enclosed the diameter change that all will not influence frictional disk, so will not shadow Ring the accuracy of measurement;The mobile variation of lining rope is amplified number by the transfer motion speed changing gear group 10 being made up of multibilayer gear Times, substantially increase measurement accuracy;And measurement range is not limited to the lining rope length of drilling depth, further includes being wrapped on wire spool Length, therefore substantially increase the range of separation indicator;Reading dial 11 is mechanical reading dial, and vertical variation depends on outer The rotational angle of the pinion gear 11.1 of side connection, one circle of the rotation of pinion gear 11.1, the reading of reading dial 11 change 1mm, this machine Tool formula reading dial failure rate is low, easy to use, is not necessarily to power supply or other power-equipments, therefore applied widely.
Further, the measurement accuracy of the reading dial 11 is 0.1mm;Range is 0-9999.9mm.
By above structure can the measurement accuracy of this separation indicator greatly improve, can accurately react country rock inner layer variation rule Rule, more reference value;Mechanical separation indicator than before, 20 times of present apparatus range enlarged proximal, meeting most of operating conditions makes With.
As the preferred structure of expansion anchor head 4, the expansion anchor head 4 includes outer anchor shell 4.1 and interior expander 4.2, interior swollen Swollen body 4.2 is with outer anchor shell 4.1 by being threadedly engaged, and the upper end of outer anchor shell 4.1, which is set, is provided with back taper through-hole 4.1.1, and outer anchor shell If uniformly opening up dry and cracked slot 4.1.2 on 4.1 outer wall;The head 4.2.1 of interior expander 4.2 is inverted cone-shaped structure, and inclined surface Angle between upper surface is less than the angle on outer anchor shell 4.1 between the back taper inclined surface through-hole 4.1.1 and upper surface;It is interior swollen Mounting hole 4.2.2 is offered on swollen body 4.2.
Make interior expander 4.2 along outer 4.1 inner wall of anchor head by being threadedly engaged between interior expander 4.2 and outer anchor shell 4.1 It moves up and down, inclines since the angle between interior expander inclined surface and upper surface is less than back taper through-hole 4.1.1 on outer anchor shell 4.1 Angle between inclined-plane and upper surface, therefore when interior expander 4.2 is moved down relative to outer anchor shell 4.1, interior expander 4.2 The back taper through-hole 4.1.1 that inclined-plane squeezes outer anchor shell 4.1 makes outer anchor shell expand and be fixed on drill hole inner wall, this structure anchor Reliably, it can also be freely disassembled.
The structure of the expansion anchor head is not limited to above description structure, as long as the structure that can be freely disassembled can be real Existing above-mentioned purpose.
In order to further increase the frictional force of friction pulley, prevent from skidding in lining rope moving process, the groove liner of friction pulley 9 For high frictional force abrasive rubber;The lining rope 2 that wire spool 8 stretches out wiring one week in the groove of friction pulley 9.
Since down-hole light is weaker, for the ease of reading, the number on the reading dial 11 has fluorescence display function Energy.Reading on reading dial is to drive to change by pinion gear, therefore compared to common reading wand, missing not easy to wear, Simultaneously convenient for reading.
Further, the lining rope 2 be steel strand wires, length not less than test depth and drum winding lining rope length it With.
Further, the mounting hole 4.2.2 opened up on interior expander 4.2 is square hole, is provided with L-type mounting groove on side wall 4.2.3, and mounting groove 4.2.3 and square hole 4.2.2 is penetrated through.Mounting hole and mounting groove are inserted for mounting rod setting by square hole Enter mounting rod and bar is fixedly mounted using L-type mounting groove, prevents mounting rod from falling off during rotary expansion anchor head.
A kind of installation measurement method of reusable large range high precision separation indicator, which is characterized in that include the following steps
The first step, according to country rock situation construction and installation drilling 1;
Second step tightens scroll spring 6 in drum from one section of lining rope 2 of pull-out in separation indicator, it is ensured that remaining in separation indicator Lining rope length is not less than 10m;
Mounting rod 12 is inserted into expansion anchor head in the square hole 4.2.2 of expander 4.2 by third step, will by mounting rod 12 Separation indicator expands in the push-in of anchor head 4 drilling 1 to test depth, recycles mounting rod 12 to rotate clockwise interior expander 4.2, makes outer Anchor shell 4.1 is expanded along the slot 4.1.2 that splits on outer wall, so that expansion anchor head 4 be made to be fixed on drill hole inner wall;
Separation indicator crust of the device 3 is fixed on 1 aperture of drilling by fixed anchor head 5 by the 4th step, reads 11 numerical value of reading dial It records bore inner and expands anchor head fitting depth, press reading dial reset button 11.2, reading dial is made to be zeroed, separation indicator installs Finish;
5th step is periodically read and is recorded to separation indicator reading according to certain observing frequency;
When needing to take out after the completion of the 6th step, separation indicator use, separation indicator host is pulled up from drilling orifice, it then will peace It fills bar 12 to be pushed into drilling and make expansion anchor head 4 be detached from brill wall with progress rotation counterclockwise after anchor head 4 contacts card jail is expanded, utilizes peace Dress bar 12 removes expansion anchor head 4;Reading dial reset button 11.2 is pressed simultaneously, reading dial 11 is made to be zeroed, in case next time uses.
Further, the head of the mounting rod 12 is square pole, and the top of square pole is equipped with pin 12.1;
In third step, when mounting rod 12 is mounted in interior expander 4.2, pin 12.1 to be made to be mounted on interior expander In the short side slot of 4.2L shape mounting groove 4.2.3.
Now with specific embodiment come illustrate its install measurement method.
Transfer motion speed changing gear group is three groups of double-layer gears, including double-layer gear 1, double-layer gear 2 10.2 and bilayer Gear 3 10.3, three groups of double-layer gears are with model gear, and gear wheel and the transmission ratio of pinion gear are 36:10, friction pulley 9 On gear and double-layer gear one in pinion drive ratio be 33:10, frictional disk wind lining rope circle wheel diameter be 49.01mm; As the mobile 1mm of lining rope in country rock, then the angle for driving frictional disk to rotate is 360 °/(π × 49.01mm)=2.3382 °/mm, So, reading table gear rotational angle is 2.3382 ° × (33/10) × (36/10) × (36/10) × (36/10)=360 °, i.e., Reading dial pinion rotation 1 is enclosed, and corresponding reading dial reading is 1.0mm.Wire spool winds lining rope length for 11m, outside separation indicator Portion's lining rope length is 15m.
It is as follows that separation indicator installs measuring process:
(1) it is drilled using common anchor cable rig construction and installation, drilling depth 16m, bit diameter 25mm expand anchor head 4 maximum gauges are 28mm.
(2) tighten scroll spring 6 in drum to a certain degree from pull-out 1m lining rope 2 in separation indicator, it is ensured that remain in separation indicator Remaining lining rope length is 10m;
(3) 12 square spigot of mounting rod is inserted into expansion anchor head in expander 4.2, and ensures cylinder on mounting rod square spigot Pin 12.1, will be in the push-in of expansion anchor head 4 drilling 1 of test device by mounting rod 12 in the short side of L shape mounting groove 4.2.3 To 16m depth, expansion anchor head 4 is rotated clockwise by mounting rod 12, anchor head is fixed on the wall of a borehole;
(4) separation indicator host is fixed on by drilling orifice by the fixation anchor head 5 of drilling orifice, reads 11 numerical value of reading dial It records bore inner and expands anchor head fitting depth, press reading dial reset button 11.2, reading dial 11 is made to be zeroed, separation indicator installation It finishes;
(5) separation indicator reading is read out and is recorded once a day;
(6) when needing to take out after the completion of separation indicator use, separation indicator host is pulled up from drilling orifice, then by mounting rod 12 push-in drill and carry out rotating counterclockwise after contacting card jail with expansion anchor head 4 deflating anchor head and taking out, while pressing reading The number zero button of disk 11, makes reading dial be zeroed, in case next time uses.

Claims (8)

1. a kind of reusable large range high precision separation indicator, including be fixed on drilling (1) position to be measured anchor head, with anchor head phase Lining rope (2) even, the drum being connected with lining rope (2) other end and the measuring device for measuring lining rope amount of movement, drum and measurement Device is installed in crust of the device (3), which is characterized in that the anchor head is expansion anchor head (4);Crust of the device (3) passes through solid Determine anchor head (5) to be anchored at drilling orifice;The drum includes scroll spring (6), fixing axle (7) and wire spool (8), scrollwork Spring (6) and wire spool (8) are installed on fixing axle (7), and lining rope (2) is wrapped in wire spool (8) by scroll spring (6) On;The measuring device includes friction pulley (9), transfer motion speed changing gear group (10) and reading dial (11), and one end of friction pulley (9) is Circle wheel (9.1) with groove, the other end are the gear (9.2) of spline, are wound on friction by the lining rope (2) that wire spool (8) are stretched out In the groove for taking turns (9), the inward flange of friction pulley (9) groove and the center line of expansion anchor head (4) are on same straight line;Transmission becomes Fast gear set (10) is made of several groups double-layer gear, and every group of double-layer gear includes a gear wheel and a pinion gear, greatly Gear and pinion gear are fixed on crust of the device (3) inner wall by gear shaft, the gear (9.2) and one of friction pulley (9) one end Pinion gear in the double-layer gear of side engages the input terminal as transfer motion speed changing gear group (10);Reading dial (11) is mechanical reading Disk, the input terminal of reading dial (11) are pinion gear (11.1), the gear wheel and reading dial of transfer motion speed changing gear group (10) output end (11) pinion gear (11.1) engagement on drives the rotation of pinion gear (11.1), and the rotation of reading dial pinion gear (11.1), which drives, reads The side of the variation read on number disk (11), reading dial (11) is equipped with reset button (11.2).
2. reusable large range high precision separation indicator according to claim 1, which is characterized in that the transmission gear shift tooth Total transmission amplification factor of wheel group (10) meets lining rope (2) mobile 1mm and reading dial pinion gear (11.1) is driven to rotate one week.
3. reusable large range high precision separation indicator according to claim 2, which is characterized in that the reading dial (11) Measurement accuracy be 0.1mm;Range is 0-9999.9mm.
4. wanting the reusable large range high precision separation indicator to 3 any rights according to claim 1, which is characterized in that The expansion anchor head (4) includes outer anchor shell (4.1) and interior expander (4.2), and interior expander (4.2) passes through with outer anchor shell (4.1) It is threadedly engaged, the upper end of outer anchor shell (4.1), which is set, to be provided with back taper through-hole (4.1.1), and is uniformly opened on the outer wall of outer anchor shell (4.1) If if dry and cracked slot (4.1.2);The head (4.2.1) of interior expander (4.2) is inverted cone-shaped structure, and between inclined surface and upper surface Angle be less than outer anchor shell (4.1) on angle of the back taper through-hole (4.1.1) between inclined surface and upper surface;Interior expander (4.2) mounting hole (4.2.2) is offered on.
5. reusable large range high precision separation indicator according to claim 4, which is characterized in that friction pulley (9) it is recessed Pot Lining is high frictional force abrasive rubber;The lining rope (2) that wire spool (8) stretches out wiring one week in the groove of friction pulley (9).
6. reusable large range high precision separation indicator according to claim 5, which is characterized in that the reading dial (11) On number have the function of fluorescence display.
7. reusable large range high precision separation indicator according to claim 6, which is characterized in that the lining rope (2) is Steel strand wires, length is not less than the sum of test depth and drum winding lining rope length.
8. reusable large range high precision separation indicator according to claim 7, which is characterized in that interior expander (4.2) On the mounting hole (4.2.2) that opens up be square hole, be provided with L-type mounting groove (4.2.3) on side wall, and mounting groove (4.2.3) and side Hole (4.2.2) perforation.
CN201820897879.8U 2018-06-11 2018-06-11 Reusable large range high precision separation indicator Withdrawn - After Issue CN208238771U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108917693A (en) * 2018-06-11 2018-11-30 中国矿业大学 A kind of reusable large range high precision separation indicator and its installation measurement method
CN111561894A (en) * 2020-06-12 2020-08-21 湖北吉祥安全技术服务有限公司 Multipoint displacement monitoring device and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108917693A (en) * 2018-06-11 2018-11-30 中国矿业大学 A kind of reusable large range high precision separation indicator and its installation measurement method
CN111561894A (en) * 2020-06-12 2020-08-21 湖北吉祥安全技术服务有限公司 Multipoint displacement monitoring device and method
CN111561894B (en) * 2020-06-12 2022-04-01 湖北吉祥安全技术服务有限公司 Multipoint displacement monitoring device and method

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