CN215573652U - Auxiliary device for measuring deflection by dial indicator - Google Patents
Auxiliary device for measuring deflection by dial indicator Download PDFInfo
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- CN215573652U CN215573652U CN202122037941.0U CN202122037941U CN215573652U CN 215573652 U CN215573652 U CN 215573652U CN 202122037941 U CN202122037941 U CN 202122037941U CN 215573652 U CN215573652 U CN 215573652U
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- weight increasing
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- wire rope
- dial indicator
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Abstract
The utility model relates to an auxiliary device of percentage table measurement amount of deflection belongs to the technical field of the amount of deflection measurement, and the auxiliary device of percentage table measurement amount of deflection is including being used for the wire rope be connected with the measured object, the one end that the measured object was kept away from to wire rope is provided with the fixed plate, the fixed plate is used for contradicting with the measuring staff of percentage table, still including being used for ordering about the tensioning subassembly of wire rope tensioning. This application has the effect that improves measurement accuracy.
Description
Technical Field
The application relates to the technical field of deflection measurement, in particular to an auxiliary device for measuring deflection by a dial indicator.
Background
When the bridge is subjected to a load test, the bridge deflection is an index which needs to be tested. The deflection refers to the maximum deformation of flexural members such as beams, trusses and the like under the action of load, and for bridges with small span, the deflection of the bridge is usually small, and most of the deflection is directly measured by adopting a dial indicator.
In the related art, a hammer type method is generally adopted for measuring by using a dial indicator, a steel wire rope is connected with a measured surface, so that the hammer naturally falls down, and then a magnetic gauge stand is used for supporting the dial indicator to measure the change amplitude of the hammer.
In view of the above-mentioned related art, the inventor found that the suspension hammer is easily affected by external factors such as wind force to generate vibration, which affects the measurement accuracy.
SUMMERY OF THE UTILITY MODEL
In order to improve measurement accuracy, this application provides the auxiliary device of percentage table measurement amount of deflection.
The application provides an auxiliary device of percentage table measurement amount of deflection adopts following technical scheme:
the utility model provides an auxiliary device of percentage table measurement amount of deflection, is including being used for the wire rope be connected with the measured object, wire rope keeps away from the one end of measured object and is provided with the fixed plate, the fixed plate is used for contradicting with the measuring staff of percentage table, still including being used for ordering about the tensioning subassembly of wire rope tensioning.
Through adopting above-mentioned technical scheme, when carrying out the deflection measurement, be connected wire rope and measured object, the fixed plate droops naturally, makes wire rope keep the tensioning state through the tensioning subassembly, and when the measured object took place to deform, wire rope drove the fixed plate and removed, and the measuring staff of percentage table contradicts with the fixed plate to measure the deflection of measured object through the percentage table, simple and convenient, reduce wire rope through the tensioning subassembly and receive external factor's influence, improve measurement accuracy.
Preferably, the tensioning assembly comprises a weight increasing plate arranged below the fixing plate, and an elastic element for applying a pulling force towards the direction close to the weight increasing plate to the fixing plate is arranged between the weight increasing plate and the fixing plate.
Through adopting above-mentioned technical scheme, will increase weight board and ground contact, increase weight board and receive the effect of self weight not easily to remove, increase weight board and pass through the elastic component and exert the pulling force that the orientation is close to the board direction that increases weight to make wire rope keep the tensioning through the fixed plate, reduce wire rope and receive external factor and influence measurement accuracy, be favorable to improving measurement accuracy.
Preferably, the elastic member includes a spring disposed between the weight increasing plate and the fixing plate, one end of the spring is disposed on the weight increasing plate, and the other end of the spring is disposed on the fixing plate.
Through adopting above-mentioned technical scheme, because the weight plate receives the effect of self weight to be difficult for taking place to remove, wire rope is suitable length, makes the weight plate have decurrent pulling force to the spring for the spring is in tensile state, and makes the spring be difficult for rocking, and the spring has the pulling force to the fixed plate, thereby makes wire rope keep the tensioning state, is favorable to improving measuring accuracy.
Preferably, a telescopic rod is arranged in the spring, one end of the telescopic rod is arranged on the fixing plate, and the other end of the telescopic rod is arranged on the weight increasing plate.
Through adopting above-mentioned technical scheme, when the measured object takes place deformation, the setting of telescopic link has the effect of direction to the removal of fixed plate, is favorable to improving measurement accuracy.
Preferably, a smooth layer is arranged on the fixing plate and used for abutting against a measuring rod of the dial indicator.
Through adopting above-mentioned technical scheme, the setting up of smooth layer makes the contact surface smooth level and smooth with the percentage table measuring staff, reduces the possibility because of the contact surface unevenness causes the error, is favorable to improving measurement accuracy.
Preferably, the weight increasing plate is provided with a counterweight for increasing the pressure.
Through adopting above-mentioned technical scheme, the setting of counter weight further makes the difficult emergence of increase heavy board remove, has increased the pulling force to the spring for the spring keeps tensile state and is difficult for rocking, further improves wire rope's tensioning effect.
Preferably, a tripod is arranged on one side, far away from the fixed plate, of the weight plate, and the tripod comprises three supporting columns with adjustable lengths.
By adopting the technical scheme, the weight increasing plate is in a horizontal state on the uneven ground by adjusting the length of the support, so that the tension of the weight increasing plate on the fixing plate is uniform, the possibility of uneven stress of the fixing plate is reduced, and the measuring precision is favorably improved.
Preferably, the both ends of spring all are provided with the connecting plate, the one end setting of telescopic link is on one side connecting plate, and the other end setting is on the opposite side connecting plate, both sides equal threaded connection has first bolt on the connecting plate, all set up on fixed plate, the weight plate with first bolt screw-thread fit's thread groove.
Through adopting above-mentioned technical scheme, rotate first bolt, realize the dismouting between connecting plate and fixed plate, the weight increasing board to indirectly realize the dismouting between spring and fixed plate, the weight increasing board, be favorable to accomodating and using of spring.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the deflection is measured, the steel wire rope is connected with a measured object, the fixing plate naturally droops, the steel wire rope is kept in a tensioning state through the tensioning assembly, when the measured object deforms, the steel wire rope drives the fixing plate to move, and a measuring rod of the dial indicator is abutted against the fixing plate, so that the deflection of the measured object is measured through the dial indicator, the deflection measuring device is simple and convenient, the influence of external factors on the steel wire rope is reduced through the tensioning assembly, and the measuring precision is improved;
2. the setting of counter weight further makes the difficult emergence of increase heavy board remove, has increased the pulling force to the spring for the spring keeps tensile state and is difficult for rocking, further improves wire rope's tensioning effect.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Description of reference numerals: 1. a wire rope; 2. a fixing plate; 3. a tension assembly; 31. a weight increasing plate; 32. an elastic member; 321. a spring; 4. a telescopic rod; 41. a loop bar; 42. a slide bar; 5. a smoothing layer; 6. balancing weight; 7. a tripod; 71. a pillar; 711. an inner rod; 712. an outer rod; 8. a connecting plate; 9. a first bolt; 10. connecting ropes; 11. mounting a plate; 12. a third bolt; 13. a support plate; 14. mounting blocks; 15. a screw; 16. and a nut.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses auxiliary device for measuring deflection by a dial indicator. Referring to fig. 1, the auxiliary device for measuring deflection of the dial indicator comprises a steel wire rope 1 connected with a measured object and a tensioning assembly 3 used for driving the steel wire rope 1 to be tensioned, wherein a fixing plate 2 is fixedly connected to one end, far away from the measured object, of the steel wire rope 1, and one surface, close to the steel wire rope 1, of the fixing plate 2 is used for abutting against a measuring rod of the dial indicator.
Referring to fig. 1, be provided with four between wire rope 1 and the fixed plate 2 and connect rope 10, the one end fixed connection of every connection rope 10 is on wire rope 1, other end fixed connection is on fixed plate 2, four are connected rope 10 and are located 2 four corners of fixed plate, connect being provided with of rope 10 and do benefit to the stability that improves between fixed plate 2 and the wire rope 1, in this embodiment, wire rope 1 is the low steel wire that relaxs with connecting rope 10, reduce among the test process wire rope 1 and the possibility of being connected rope 10 and take place to warp.
When carrying out the deflection measurement to the measured object, be connected wire rope 1 and measured object spare of suitable length through the expansion hook, fixed plate 2 drops down naturally, make the measuring staff of percentage table contradict with fixed plate 2 one side near wire rope 1 through the magnetic gauge stand, make wire rope 1 keep the tensioning state through tensioning assembly 3, the measured object spare takes place to warp under the load effect, wire rope 1 will warp and transmit for fixed plate 2, thereby make fixed plate 2 remove, measure the displacement volume of fixed plate 2 through the percentage table, obtain the deflection of measured object spare, through the effect of tensioning assembly 3, reduce the influence of external factor to wire rope 1, improve measurement accuracy.
Referring to fig. 1, the tension assembly 3 includes a weight increasing plate 31 disposed below the fixing plate 2, an elastic member 32 disposed between the weight increasing plate 31 and the fixing plate 2 for applying a tensile force to the fixing plate 2 in a direction approaching the weight increasing plate 31, the elastic member 32 including a spring 321 disposed between the weight increasing plate 31 and the fixing plate 2, one end of the spring 321 being fixedly connected to the weight increasing plate 31, the other end being fixedly connected to the fixing plate 2, in this embodiment, spring 321 is provided with two, all is provided with telescopic link 4 in two springs 321, and telescopic link 4 includes that loop bar 41 and the slip cap of fixed connection on increasing weight board 31 establish slide bar 42 in loop bar 41, and the one end fixed connection that loop bar 41 was kept away from to slide bar 42 is on fixed plate 2, has placed counter weight 6 on increasing weight board 31, places the magnetic meter seat on counter weight 6, makes the measuring staff of percentage table contradict with fixed plate 2 to subsequent measurement.
When the deflection of the measured object is measured, the weight increasing plate 31 is placed on the ground, the balance weight 6 is placed on the weight increasing plate 31, the weight increasing plate 31 is not easy to move under the action of the self weight and the balance weight 6, the steel wire rope 1 is of a proper length, the weight increasing plate 31 has downward tension on the spring 321, the spring 321 is in a stretching state, the spring 321 is not easy to shake, the spring 321 has tension towards the direction close to the weight increasing plate 31 on the fixing plate 2, the steel wire rope 1 is kept in a tensioning state, and the measurement precision is improved; when the measured object takes place deformation, the setting of telescopic link 4 has the effect of direction to the removal of fixed plate 2, further improves measurement accuracy.
Referring to fig. 1, a smooth layer 5 is fixedly connected to one surface of the fixing plate 2 close to the steel wire rope 1, in this embodiment, the smooth layer 5 is made of glass, and the glass abuts against a measuring rod of the dial indicator. The smooth layer 5 enables the contact position of the dial indicator measuring rod to be smooth and flat, and the improvement of the measuring precision is facilitated.
Referring to fig. 1 and 2, one side of the weight increasing plate 31, which is far away from the fixing plate 2, is connected with a mounting plate 11 through a second bolt, one side of the mounting plate 11, which is far away from the weight increasing plate 31, is provided with a tripod 7, the tripod 7 comprises three supporting columns 71 with adjustable lengths, each supporting column 71 comprises an inner rod 711 hinged on the mounting plate 11 and an outer rod 712, which is slidably sleeved outside the inner rod 711, each outer rod 712 is connected with a third bolt 12 through threads, and each third bolt 12 is abutted to the corresponding inner rod 711. The welding has three groups of extension boards 13 on the mounting panel 11, every group extension board 13 includes two plate bodys, three groups of extension boards 13 and three interior poles 711 one-to-one, interior pole 711 articulates on a set of extension board 13 that corresponds, the one end fixedly connected with installation piece 14 of outer pole 712 is kept away from to interior pole 711, installation piece 14 articulates on a set of extension board 13 that corresponds, threaded connection has screw rod 15 on a set of extension board 13, set up on the installation piece 14 with 15 threaded connection's of screw rod screw hole, screw rod 15 runs through installation piece 14, the equal threaded connection in both ends of screw rod 15 has nut 16.
For uneven ground, the second bolt is rotated to connect the mounting plate 11 with the weight increasing plate 31, the nut 16 is rotated to take the nut 16 off the screw rod 15, the screw rod 15 is rotated to separate the screw rod 15 from the mounting block 14, the inner rod 711 is rotated to a proper position, the screw rod 15 is simultaneously in threaded connection with the support plate 13 and the mounting block 14, the nut 16 is rotated to connect the nut 16 at two ends of the screw rod 15 in a threaded manner, so that the inner rod 711 is rotated to a proper position, the inner rod 711 is slid to a proper height by adjusting the third bolt 12 to enable the weight increasing plate 31 to be in a horizontal state, the third bolt 12 is rotated to enable the third bolt 12 to be abutted against the inner rod 711, and the inner rod 711 and the outer rod 712 are relatively fixed; the weight increasing plate 31 is in a horizontal state, so that uniform tension is applied to the fixing plate 2, and the measurement precision is improved. On level and smooth ground, rotate the second bolt, make mounting panel 11 break away from with weight increasing plate 31, can directly be with weight increasing plate 31 and ground contact, for the use of tripod 7 with accomodate and provide convenience.
Referring to fig. 1 and 2, connecting plates 8 are welded at two ends of a spring 321, one end of a sliding rod 42, which is far away from a loop bar 41, is welded on the connecting plate 8 at one side, which is close to a fixed plate 2, of the sliding rod 42, one end of the loop bar 41, which is far away from the sliding rod 42, is welded on the connecting plate 8 at one side, which is close to a weight increasing plate 31, first bolts 9 are connected on the connecting plates 8 at two sides in a threaded manner, and thread grooves matched with the first bolts 9 in a threaded manner are formed in the fixed plate 2 and the weight increasing plate 31. The first bolt 9 is rotated to realize the separation between the connecting plate 8 and the weight increasing plate 31 and the fixing plate 2, thereby being beneficial to the carrying and the storage of the spring 321 and the telescopic rod 4; the first bolt 9 is rotated to connect the connecting plate 8 with the weight increasing plate 31 and the fixing plate 2, so that the spring 321 and the telescopic rod 4 can be conveniently used.
The implementation principle of the embodiment of the application is as follows: for a flat ground, when a measured object is subjected to deflection measurement, a steel wire rope 1 with a proper length is connected with the measured object through an expansion hook, a fixing plate 2 is in a natural sagging state under the action of gravity, a first bolt 9 is rotated to enable a connecting plate 8 to be connected with a weight increasing plate 31 and the fixing plate 2, a balance weight 6 is placed on the weight increasing plate 31, the weight increasing plate 31 is in contact with the ground, the steel wire rope 1 is kept in a tensioning state under the action of a spring 321, a magnetic meter base is placed on the balance weight 6, a measuring rod of a dial indicator is enabled to be abutted against a smooth layer 5, when the measured object is deformed under the action of load, the deformation of the measured object is transmitted to the fixing plate 2 through the steel wire rope 1, the fixing plate 2 moves, and the moving amount of the fixing plate 2 is measured through the dial indicator to obtain the deflection of the measured object; make spring 321 be in tensile state and be difficult for rocking through the effect of increase weight board 31 and counter weight 6, spring 321 has the pulling force to fixed plate 2 to make wire rope 1 keep the tensioning, reduce external factor to measuring influence, improve measurement accuracy.
For uneven ground, when the deflection of the measured object is measured, the steel wire rope 1 with proper length is connected with the measured object through the expansion hook, the fixing plate 2 is in a natural sagging state, the first bolt 9 is rotated to connect the connecting plate 8 with the weight increasing plate 31 and the fixing plate 2, the second bolt is rotated to connect the mounting plate 11 with the weight increasing plate 31, the nut 16 is rotated to remove the nut 16 from the screw rod 15, the screw rod 15 is rotated to separate the screw rod 15 from the mounting block 14, the inner rod 711 is rotated to a proper position, the screw rod 15 is simultaneously in threaded connection with the support plate 13 and the mounting block 14, the nut 16 is rotated to enable the nut 16 to be in threaded connection with two ends of the screw rod 15, so that the inner rod 711 is fixed to a proper position, the inner rod 711 is slid to a proper height by adjusting the third bolt 12, the weight increasing plate 31 is in a horizontal state, and the tension of the fixing plate 2 by the spring 321 is uniform, rotating the third bolt 12 to make the third bolt 12 abut against the inner rod 711, and fixing the inner rod 711 and the outer rod 712 relatively so as to perform subsequent measurement; the steel wire rope 1 is kept in a tensioning state under the action of the spring 321, and the measurement precision is improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides an auxiliary device that percentage table measured deflection, is including being used for wire rope (1) be connected with the measured object spare, its characterized in that: the one end that the measured object spare was kept away from in wire rope (1) is provided with fixed plate (2), fixed plate (2) are used for contradicting with the measuring staff of percentage table, still including being used for ordering about tensioning assembly (3) of wire rope (1) tensioning.
2. The auxiliary device for measuring deflection of a dial indicator according to claim 1, wherein: the tensioning assembly (3) comprises a weight increasing plate (31) arranged below the fixing plate (2), and an elastic piece (32) used for applying pulling force towards the direction close to the weight increasing plate (31) to the fixing plate (2) is arranged between the weight increasing plate (31) and the fixing plate (2).
3. The auxiliary device for measuring deflection of a dial indicator according to claim 2, wherein: the elastic piece (32) comprises a spring (321) arranged between the weight increasing plate (31) and the fixing plate (2), one end of the spring (321) is arranged on the weight increasing plate (31), and the other end of the spring (321) is arranged on the fixing plate (2).
4. The auxiliary device for measuring deflection of a dial indicator according to claim 3, wherein: an expansion rod (4) is arranged in the spring (321), one end of the expansion rod (4) is arranged on the fixing plate (2), and the other end of the expansion rod is arranged on the weight increasing plate (31).
5. The auxiliary device for measuring deflection of a dial indicator according to claim 1, wherein: be provided with smooth layer (5) on fixed plate (2), smooth layer (5) are used for contradicting with the measuring staff of percentage table.
6. The auxiliary device for measuring deflection of a dial indicator according to claim 2, wherein: and a counterweight (6) for pressurization is arranged on the weight increasing plate (31).
7. The auxiliary device for measuring deflection of a dial indicator according to claim 2, wherein: one side of the weight increasing plate (31) far away from the fixed plate (2) is provided with a tripod (7), and the tripod (7) comprises three supporting columns (71) with adjustable lengths.
8. The auxiliary device for measuring deflection of a dial indicator according to claim 4, wherein: both ends of spring (321) all are provided with connecting plate (8), the one end setting of telescopic link (4) is on one side connecting plate (8), and the other end setting is on opposite side connecting plate (8), both sides equal threaded connection has first bolt (9) on connecting plate (8), all offer on fixed plate (2), weight increasing board (31) with first bolt (9) screw-thread fit's thread groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122037941.0U CN215573652U (en) | 2021-08-26 | 2021-08-26 | Auxiliary device for measuring deflection by dial indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122037941.0U CN215573652U (en) | 2021-08-26 | 2021-08-26 | Auxiliary device for measuring deflection by dial indicator |
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| Publication Number | Publication Date |
|---|---|
| CN215573652U true CN215573652U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122037941.0U Active CN215573652U (en) | 2021-08-26 | 2021-08-26 | Auxiliary device for measuring deflection by dial indicator |
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| Country | Link |
|---|---|
| CN (1) | CN215573652U (en) |
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2021
- 2021-08-26 CN CN202122037941.0U patent/CN215573652U/en active Active
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