CN204881499U - Convergence measurement device of adjustable sensitivity - Google Patents
Convergence measurement device of adjustable sensitivity Download PDFInfo
- Publication number
- CN204881499U CN204881499U CN201520629206.0U CN201520629206U CN204881499U CN 204881499 U CN204881499 U CN 204881499U CN 201520629206 U CN201520629206 U CN 201520629206U CN 204881499 U CN204881499 U CN 204881499U
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- pulley
- test
- counterweight
- yoke
- pulley yoke
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Abstract
The utility model relates to a convergence measurement device of adjustable sensitivity, the device are by first pulley yoke, second pulley yoke and install first assembly pulley on first pulley yoke, install second assembly pulley on the second pulley yoke, the test rope of winding on the pulley, hang in the terminal counter weight of test rope, set up at the electromechanical percentage table of counter weight below and be used for the magnet stand combination of fixed electromechanical percentage table to constitute, can improve measuring sensitivity, measuring result is accurate moreover, and the error is little, receives external disturbance little, and application scope is wide.
Description
Technical field
The utility model belongs to the surface convergence surveying instrument technical fields such as tunnel cross-section, mine working, cofferdam, the convergence measurement device of particularly a kind of adjustable sensitivity.
Background technology
Convergence measurement refers to the measurement of relative deformation to point-to-point transmission and deformation rule.Current tunnel cross-section, mine working, cofferdam etc. all need to carry out convergence measurement.Current convergence test method or convergence instrument, it is with survey instruments such as tape measure, Sopwith staff, survey line and weights mostly, distance between the lateral wall in direct measurement tunnel, tunnel cross-section, cofferdam etc. or top, the end two measuring point, due to highly inconvenient observed reading, normally just can read data by means of instruments such as catoptrons, and need many people cooperation jointly to fulfil assignment, therefore, in measuring process, there is the defects such as measuring error is large, inefficiency, measuring accuracy are low, when therefore applying in Practical Project is measured, there is limitation.
Summary of the invention
In order to solve the deficiency existing for above-mentioned convergence measurement technology, the utility model provides a kind of convergence measurement device of adjustable sensitivity, it utilizes pulley to change convergent deformation direction, and the winding between many group pulley blockss of utilization test rope reduces test error, improves measurement sensistivity.
The technical scheme that the utility model is adopted to achieve these goals is that this device comprises the first pulley yoke being arranged on test point A and the second pulley yoke being arranged on test point B, first pulley yoke and the second pulley yoke are on same horizontal line and be on same longitudinal cross-section, first pulley yoke is provided with the first pulley blocks, second pulley yoke is provided with the second pulley blocks, the pulley of the first pulley blocks and the second pulley blocks is wound with test rope, one end of test rope is fixed, after other end horizontal-extending pile warp first pulley blocks and the second pulley blocks, 90 ° turn to, vertical direction is transferred to downward-extension by horizontal direction, another end of test rope is hung with counterweight, installation dynamo-electric dial gauge is on a magnetic stand provided with in the below of counterweight, test rope above the measuring staff of dynamo-electric dial gauge and counterweight central shaft and counterweight is on same straight line.
Above-mentioned first pulley blocks and the second pulley blocks include multiple pulleys of 1 or arranged side by side of being arranged on wheel shaft, and ensure the precision of test, wire rope pile warp pulley is more, and measuring error is less, and measuring accuracy is higher.
Above-mentioned counterweight is made up of body and the suspension ring that are arranged on bodies top center, screw is processed with at the top of body, threadedly be connected with suspension ring, be processed with groove at the bottom centre position of body, the measuring staff of dial gauge extends in body recess.
Above-mentioned body is the frustum of a cone or cylindrical-shaped structure, reduces the interference of external environment to test, and test rope is galvanized wire or wire rope, ensures that the ductility of himself is less.
The convergence measurement device of the adjustable sensitivity that the utility model provides is wound around between many group pulleys by test rope, improve the sensitivity of measuring, recycling pulley turns to the convergent deformation convergent deformation of the horizontal direction of test rope being converted to vertical direction, by counterweight, the dynamo-electric dial gauge reading of convergence deformation is embodied by test wire saws, thus convenient observation, read data, measurement result of the present utility model is accurate, highly sensitive, and can real-time monitored real time record convergent deformation situation by dynamo-electric dial gauge, in addition, test rope diameter is little, counterweight elongate form, the impact of test process apoplexy on measurement result can be reduced, little by external interference, ensure measuring accuracy, measuring distance can by tens centimetres to tens meters, applied widely.
Accompanying drawing explanation
Fig. 1 is the convergence measurement apparatus structure schematic diagram of embodiment 1.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is counterweight 4 structural representation in Fig. 1.
Fig. 4 is counterweight 4 structural representation of embodiment 2.
Embodiment
Now by reference to the accompanying drawings the technical solution of the utility model is further described, but the utility model is not limited only to following enforcement situation.
Embodiment 1
See Fig. 1 and 2, the convergence measurement device of the present embodiment is combined formed by the first pulley yoke 7, second pulley yoke 1, first pulley blocks 8, second pulley blocks 2, test rope 3, counterweight 4, dynamo-electric dial gauge 5 and magnet stand 6.
First pulley yoke 7 of the present embodiment and the second pulley yoke 1 respectively by bolted at test point A and test point B, ensure that the first pulley yoke 7 and the second pulley yoke 1 are in same level, first pulley yoke 7 is provided with the first pulley blocks 8, first pulley blocks 8 of the present embodiment is by the first wheel shaft and 8 one-tenth, the first pulley blocks, first wheel shaft level is arranged on the first pulley yoke 7, and the first pulley axle centered by the first wheel shaft is arranged on the first pulley yoke 7 by the first wheel shaft.Second pulley yoke 1 is provided with the second pulley blocks 2, in like manner, second pulley blocks 2 is made up of the second pulley 2-1 and the second wheel shaft and the 3rd pulley 2-2 and third round axle, second pulley 2-1 and the 3rd pulley 2-2 and the first pulley are in same level, and the second pulley 2-1 and the 3rd pulley 2-2 is arranged on the second pulley yoke 1 side by side respectively by the second wheel shaft, third round axle.First pulley yoke 7 of the present embodiment and the second pulley yoke 1 and the first pulley blocks 8, second pulley blocks 2 all belong to conventional fixed pulley assembly.
The test rope 3 of the present embodiment adopts diameter to be the thin galvanized wire of 0.7mm, test rope 3 one end is fixed on test point A, the other end walks around the second pulley 2-1 along horizontal direction, the 3rd pulley 2-2 is wound to again after pile warp first pulley, extend straight down after the 3rd pulley 2-2, occur 90 ° to turn to, the end testing rope 3 immediately below the 3rd pulley 2-2 is hung with counterweight 4, conveniently suspend in midair, see Fig. 3, the counterweight 4 of the present embodiment is made up of suspension ring 4-1 and body 4-2, body 4-2 is tapering is 0.5, height is 10cm, upper bottom surface diameter is 2cm, bottom surface diameter is the circular cone structure of 7cm, wind-force can be reduced in test process on the impact of measurement result, employing stainless steel material is made, also can according to the physical dimension of concrete Use Adjustment counterweight 4.A screw is processed with at the top of body 4-2, the bottom of suspension ring 4-1 extends in body 4-2 screw and is threadedly connected with body 4-2, also a groove is processed with at the bottom centre position of body 4-2, magnet stand 6 below body 4-2 is installed with a dynamo-electric dial gauge 5, the measuring staff of this dynamo-electric dial gauge 5 extends in the groove of body 4-2, make body 4-2 that measuring staff can be caused when vertical direction is subjected to displacement change to move linearly, thus embodied by the pointer of dynamo-electric dial gauge 5.
When carrying out convergence measurement with above-mentioned convergence measurement device to the both sides of mine working, concrete method is realized by following steps:
(1) test point A place on the left side wall free end of test rope 3 being fixed on mine working, first pulley yoke 7 is fixed on test point A, second pulley yoke 1 is fixed on test point B, test point A and test point B is on same horizontal line and be in same section, ensures that the first pulley yoke 7 and the second pulley yoke 1 are on same surface level and on same longitudinal cross-section;
(2) one end testing rope 3 is fixed on test point A, the other end returns the first pulley on the first pulley yoke 7 after walking around the second pulley 2-1 on the second pulley yoke 1, walk around the 3rd pulley 2-2 of the second pulley yoke 1 afterwards again, after the 3rd pulley 2-2,90 ° turn to, extend straight down, the counterweight 4 hung at test rope 3 end is at Action of Gravity Field by stretching for test rope 3, and the dynamo-electric dial gauge 5 be fixed on bottom counterweight 4 tests out the displacement initial value L of vertical direction before the convergent deformation between test point A and test point B
0;
(3) after t hour, the raw convergent deformation of test configuration produce between test point A and test point B, the convergent deformation of horizontal direction is made to be converted to the displacement of vertical direction by pulley, test rope 3 moves in the horizontal direction and affects counterweight 4 to be subjected to displacement at vertical direction, counterweight 4 moves and causes the measuring staff of dynamo-electric dial gauge 5 to move, by dynamo-electric dial gauge 5, shift transformation is converted to angle change to be indicated by pointer, reads the numerical value of dynamo-electric dial gauge 5 in real time, and be recorded as L
i;
(4) by formula L
i-L
0=Δ L
i', calculate the convergency value Δ L that test configuration thing is corresponding after t hour
i'.
Embodiment 2
See Fig. 4, the counterweight 4 body 4-2 of the present embodiment can also be right cylinder, and it is highly 10cm, and diameter is 5cm, and guarantee is slim-lined construction.Test rope 3 also can adopt wire rope.
The first pulley blocks 8 that first pulley yoke 7 of the present embodiment is installed includes 2 pulleys arranged side by side, and the second pulley blocks 2 that the second pulley yoke 1 is installed includes 3 pulleys arranged side by side, the number of pulley is determined according to the AB spacing of actual measurement and the length of wire rope, can also adjust flexibly according to reality.
Other parts and annexation identical with embodiment 1.
The number of the pulley in above-described embodiment and the dimensions of counterweight 4 all can adjust according to practical application, and unspecified web member and connected mode all belong to routine techniques.
Claims (4)
1. the convergence measurement device of an adjustable sensitivity, it is characterized in that: this device comprises the first pulley yoke (7) being arranged on test point A and the second pulley yoke (1) being arranged on test point B, first pulley yoke (7) and the second pulley yoke (1) are on same horizontal line and be on same longitudinal cross-section, first pulley yoke (7) is provided with the first pulley blocks (8), second pulley yoke (1) is provided with the second pulley blocks (2), the pulley of the first pulley blocks (8) and the second pulley blocks (2) is wound with test rope (3), one end of test rope (3) is fixed, other end horizontal-extending pile warp first pulley blocks (8) and latter 90 ° of the second pulley blocks (2) turn to, vertical direction is transferred to downward-extension by horizontal direction, another end of test rope (3) is hung with counterweight (4), the dynamo-electric dial gauge (5) be arranged on magnet stand (6) is provided with in the below of counterweight (4), the test rope (3) of the measuring staff of dynamo-electric dial gauge (5) and counterweight (4) central shaft and counterweight (4) top is on same straight line.
2. the convergence measurement device of adjustable sensitivity according to claim 1, is characterized in that: described first pulley blocks (8) and the second pulley blocks (2) include multiple pulleys of 1 or arranged side by side of being arranged on wheel shaft.
3. the convergence measurement device of adjustable sensitivity according to claim 1 and 2, it is characterized in that: described counterweight (4) is made up of body (4-2) and the suspension ring (4-1) that are arranged on body (4-2) top center, screw is processed with at the top of body (4-2), threadedly be connected with suspension ring (4-1), be processed with groove at the bottom centre position of body (4-2), the measuring staff of dial gauge extends in body (4-2) groove.
4. the convergence measurement device of adjustable sensitivity according to claim 3, is characterized in that: described body (4-2) is the frustum of a cone or cylindrical-shaped structure, and described test rope (3) is galvanized wire or wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520629206.0U CN204881499U (en) | 2015-08-19 | 2015-08-19 | Convergence measurement device of adjustable sensitivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520629206.0U CN204881499U (en) | 2015-08-19 | 2015-08-19 | Convergence measurement device of adjustable sensitivity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204881499U true CN204881499U (en) | 2015-12-16 |
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ID=54825862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520629206.0U Expired - Fee Related CN204881499U (en) | 2015-08-19 | 2015-08-19 | Convergence measurement device of adjustable sensitivity |
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| CN (1) | CN204881499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106149772A (en) * | 2016-08-09 | 2016-11-23 | 济南城建集团有限公司 | A kind of device of real-time monitoring steel sheet pile enclosure malformation |
-
2015
- 2015-08-19 CN CN201520629206.0U patent/CN204881499U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106149772A (en) * | 2016-08-09 | 2016-11-23 | 济南城建集团有限公司 | A kind of device of real-time monitoring steel sheet pile enclosure malformation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20160819 |