CN205538037U - Vibrating wire type taseometer - Google Patents
Vibrating wire type taseometer Download PDFInfo
- Publication number
- CN205538037U CN205538037U CN201620080367.3U CN201620080367U CN205538037U CN 205538037 U CN205538037 U CN 205538037U CN 201620080367 U CN201620080367 U CN 201620080367U CN 205538037 U CN205538037 U CN 205538037U
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- axle sleeve
- string wire
- screw thread
- rotor
- cone tooth
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Abstract
The utility model discloses a vibrating wire type taseometer, including the axle sleeve and arrange the string wire in the axle sleeve in, string wire's both ends are fixed in the axle sleeve, still including setting up in the axle sleeve and the pressing piece of pressure on string wire, thereby the axial displacement adjustment can be followed to the pressing piece in the axle sleeve position on string wire is pressed to the pressing piece. The pressing piece is pressed on string wire, and axial displacement can be followed to the pressing piece, can adjust pressing piece and string wire's contact point position through removing the pressing piece, realizes adjusting string wire's vibration frequency, makes string wire's vibration frequency, vibration frequency's change curve unanimous on the whole, actual axial displacement 0, and the vibration frequency that each vibrating wire type taseometer recorded can both correspond a pulling force value in unison, need not file to string wire's frequency, and it is very convenient to use.
Description
Technical field
The utility model relates to a kind of vibratory stress gauge, particularly relates to a kind of for detecting reinforcing steel bar bear situation
Type vibration wire Reinforcement Stress-count.
Background technology
In the construction of architectural engineering test pile, need to be arranged on reinforcing bar vibratory stress gauge, for fixed
The stressing conditions of reinforcing bar in phase detection concrete column.Vibratory stress gauge includes axle sleeve, is positioned at axle sleeve edge
Axially arranged string wire and test component, the mounting means of existing string wire, is to utilize bolt directly by steel
String lock on axle sleeve, cause the tightness of string wire on each vibratory stress gauge, stressing conditions,
And position the most all can exist certain difference, this allows for being subject in unloaded or same load
In the case of power, the vibration frequency come detected by each vibratory stress gauge is different from, even if all detecting
To identical vibration frequency, the stress of the reinforcing bar corresponding to each vibratory stress gauge is also different from.Also
That is, existing vibratory stress gauge, the vibration frequency of the string wire of each vibratory stress gauge, string wire
The change curve of vibration frequency the most different, therefore, in actual use, to each type vibration wire stress
The meter vibration frequency when zero load, the vibration frequency in the case of maximum weighted will record archive, in order to
Being analyzed during periodic detection in the future, once loss of data just cannot calculate the actual loading of reinforcing bar,
Use very inconvenient.
Utility model content
The utility model provides a kind of vibratory stress gauge, which overcomes the deficiency existing for background technology.This
Utility model solves its technical problem and be the technical scheme is that
A kind of vibratory stress gauge, including axle sleeve and the string wire that is placed in axle sleeve, the two ends of string wire are fixed on axle
In set, also including being arranged on the pressing piece that axle sleeve is interior and is pressed on string wire, described pressing piece can edge in axle sleeve
Move axially thus adjust the position that pressing piece is pressed on string wire.
Among one preferred embodiment: also include the rotor being arranged in axle sleeve, the middle part of rotor is provided with for string wire
The axially extending bore passed, rotor is additionally provided with radial hole, and described pressing piece is rod-like structure and is arranged on radially
In hole, rotate rotor and rotor can be made to be axially moveable.
Among one preferred embodiment: also including the threaded sleeve being arranged in axle sleeve, rotor is arranged on thread bush
In pipe, rotor is threadeded with threaded sleeve.
Among one preferred embodiment: rotor is working of plastics, the screw thread on rotor outer periphery face includes spaced
The screw thread interference in the axial direction of leading portion screw thread and back segment screw thread, leading portion screw thread and back segment screw thread and threaded sleeve is joined
Close.
Among one preferred embodiment: also include two be symmetricly set on axle sleeve in be respectively used to fixing string wire two ends
Cone tooth clamp head, cone tooth clamp centriciput is provided with the pin hole passed for string wire, bores tooth clamp head microcephaly one end
End face be provided with multiple cutting groove thus form multiple jaw in the end of cone tooth clamp head, bore tooth clamp head
Being provided with nut, fastening nut can make jaw tighten up and hold string wire tightly.
Among one preferred embodiment: also include two glands, gland is threaded in axle sleeve, two glands
Respectively two cone tooth clamp heads are pushed down spacing in axle sleeve；Described pressing piece bores tooth clamp near one of them
Head is arranged, and cone tooth clamp head pushes down threaded sleeve.
Among one preferred embodiment: gland is metalwork, in the middle part of gland outer peripheral face, it is provided with annular groove, annular
Screw thread on gland outer peripheral face is divided into leading portion screw thread and rear end screw thread by groove, and gland is at its annular groove position
Radially cutting arranges at least two slots to make way so that the middle part of gland forms serpentine configuration, gland leading portion spiral shell
The screw thread interference fit in the axial direction of line and back segment screw thread and axle sleeve.
Among one preferred embodiment: the center of the end face of cone tooth clamp head major part one end is provided with accepting groove, houses
Be provided with in groove and return middle part, described in return four baffle plates that middle part includes setting gradually vertically, four baffle plates surround
One square opening, string wire passes square opening, and string wire is carried out by four baffle plates respectively from four direction up and down
Spacing.
Among one preferred embodiment: being additionally provided with sealing mechanism in the outside of gland in axle sleeve, sealing mechanism includes
Support member, sealing ring and seal screw cap, sealing ring is pressed on support member by seal screw cap, seal screw cap and axle
External threading connects, and sleeve lining corresponding on sealing ring is smooth surface texture.
Among one preferred embodiment: the inner surface at described axle sleeve both ends is provided with helicitic texture, reinforcing bar head is inserted
Enter in axle sleeve and be connected with sleeve thread.
The technical program is compared with background technology, and it has the advantage that
1. pressing piece is pressed on string wire, and pressing piece can axially move, and can be adjusted by mobile pressing piece
Pressing piece and the contacting points position of string wire, it is achieved be adjusted the vibration frequency of string wire, make the vibration frequency of string wire
Rate, vibration frequency change curve unanimous on the whole, in use, each vibratory stress gauge records reality
Vibration frequency can a corresponding value of thrust uniformly, it is not necessary to achieves the frequency of string wire, uses non-
The most convenient.
2., in rotor is rotatably arranged in axle sleeve, pressing piece is arranged on the radial hole of rotor, simple in construction,
Particularly, particularly, rotor leading portion screw thread and back segment screw thread and the screw thread interference fit in the axial direction of threaded sleeve,
Ensureing that rotor is securely fixed in axle sleeve, rotor-position is not easy to change, and the performance of stressometer is more stable.
3. cone tooth clamp head is provided with nut, and fastening nut can make jaw tighten up and hold string wire tightly, the most permissible
Firmly fix string wire, on the other hand can preferably make string wire be on the center line of axle sleeve.
4. in the middle part of gland formed serpentine configuration thus there is certain elastic deformability, gland leading portion screw thread and after
Section screw thread and the screw thread interference fit in the axial direction of axle sleeve, it is ensured that gland is securely fixed in axle sleeve, gland position
Putting and be not easy to change, the performance of stressometer is more stable.
5. string wire is through returning middle part, and string wire is carried out spacing from four direction up and down by four baffle plates respectively,
Ensure that string wire is placed exactly in the center of cone tooth clamp head, make string wire be on the center line of axle sleeve.
5. sealing ring is pressed on support member by seal screw cap, and seal screw cap is connected with sleeve thread, right on sealing ring
The sleeve lining answered is smooth surface, can improve sealing.
6. the inner surface at axle sleeve both ends described in is provided with helicitic texture, and reinforcing bar head is inserted in axle sleeve and and axle
External threading connects, and installs very convenient.
Accompanying drawing explanation
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Fig. 1 depicts the cross-sectional schematic of vibratory stress gauge of the present invention.
Fig. 2 depicts the schematic top plan view of the rotor of vibratory stress gauge shown in Fig. 1.
Fig. 3 depicts the cross-sectional schematic of rotor shown in Fig. 2.
Fig. 4 depicts the rotor of vibratory stress gauge shown in Fig. 1 and the connection diagram of threaded sleeve.
Fig. 5 depicts the schematic diagram of the gland of vibratory stress gauge shown in Fig. 1.
Fig. 6 depicts the cross-sectional schematic of the cone tooth clamp head of vibratory stress gauge shown in Fig. 1.
Fig. 7 depicts the schematic top plan view of cone tooth clamp head shown in Fig. 6.
Fig. 8 depicts the schematic diagram returning middle part of vibratory stress gauge shown in Fig. 1.
Fig. 9 depicts the cross-sectional schematic at first gear Board position returning middle part shown in Fig. 8.
Figure 10 depicts the cross-sectional schematic in second baffle position returning middle part shown in Fig. 8.
Figure 11 depicts the cross-sectional schematic at third gear Board position returning middle part shown in Fig. 8.
Figure 12 depicts the cross-sectional schematic at fourth gear Board position returning middle part shown in Fig. 8.
Detailed description of the invention
Refer to Fig. 1, a kind of vibratory stress gauge of the present invention, including axle sleeve 10 and the steel that is placed in axle sleeve
String 20, the two ends of string wire 20 are fixed in axle sleeve 10, in also including being arranged on axle sleeve 10 and be pressed in string wire 20
On pressing piece 30, described pressing piece 30 can axially move in axle sleeve 10 so that pressing piece 30 and steel
The contact point adjustable of string 20.Pressing piece 30 pins the diverse location of string wire 20, thus it is possible to vary string wire 20
Stress, shape and draw ratio, make the vibration frequency of string wire 20 be adjusted, and therefore, it can make type vibration wire answer
The vibration frequency of string wire 20, when identical pulling force, is adjusted to a fixed value by power meter.
The inner surface at described axle sleeve 10 both ends is provided with helicitic texture, and reinforcing bar 05 head is inserted in axle sleeve 10
And threaded with axle sleeve 10.
In also including being arranged on axle sleeve 10 and string wire 20 is applied the elastic component 80 of elastic force tension string wire, institute
State the tightness adjustable of elastic component 80, make the vibration frequency adjustable of string wire 20.Elastic component 80 preferably bullet
Spring.
Refer to Fig. 1 to Fig. 4, vibratory stress gauge also includes the rotor 40 being arranged in axle sleeve 10, rotor
The middle part of 40 is provided with the axially extending bore 42 passed for string wire 20, rotor 40 is additionally provided with radial hole 44, axially
Through hole 42 and radial hole 44 communicate, and described pressing piece 30 is rod-like structure and is arranged in radial hole 44,
Rotor 40 is threaded in axle sleeve, rotates rotor 40 and rotor 40 can be made to be axially moveable.Preferably, also
Including the threaded sleeve 50 being arranged in axle sleeve, rotor 40 is arranged in threaded sleeve 50, rotor 40 and spiral shell
Line sleeve pipe 50 is threaded, rotates rotor 40 and rotor 40 can be made to move in threaded sleeve 50.Preferably,
Rotor 40 is working of plastics, and the screw thread on rotor 40 outer peripheral face includes spaced leading portion screw thread 45 and back segment
Screw thread 47, leading portion screw thread 45 and back segment screw thread 47 and the screw thread interference fit in the axial direction of threaded sleeve 50.
Refer to Fig. 1, Fig. 6 and Fig. 7, the two ends of string wire 20 are to be fixed on by two cone tooth clamp heads 60
In axle sleeve 10, specifically: two cone tooth clamp heads 60 lay respectively at string wire in being symmetricly set on axle sleeve 10
The two ends of 20, are provided with, in the middle part of cone tooth clamp head 60, the pin hole 62 passed for string wire, bore tooth clamp head 60 microcephaly
One end is outwardly and the end face of microcephaly one end is provided with cross cutting groove thus in the end shape of cone tooth clamp head
Becoming four jaws 64, cone tooth clamp head to be provided with nut 66, fastening nut 66 can make jaw 64 tighten up and embrace
Tight string wire 20.
Refer to Fig. 1 and Fig. 5, also include two glands 70, gland 70 is threaded in axle sleeve 10,
Two cone tooth clamp heads 60 are pushed down spacing in axle sleeve 10 by two glands 70 respectively.Gland 70 is metal
Part, is provided with annular groove 72 in the middle part of gland 70 outer peripheral face, gland 70 is radially cut at its annular groove position
Cutting and arrange at least two slots to make way 74 so that the middle part of gland forms serpentine configuration, annular groove 72 will pressure
Screw thread on lid outer peripheral face is divided into leading portion screw thread 71 and rear end screw thread 73, gland leading portion screw thread 71 and back segment spiral shell
Line 73 and the screw thread interference fit in the axial direction of axle sleeve 10.It is of course also possible to make cone tooth clamp head 60 direct
It is spirally connected with axle sleeve 10.
Refer to Fig. 1, Fig. 8 to Figure 12, owing to the diameter of string wire 20 is the least, be so small to have only 0.2mm,
Being subject to processing the restriction of technology, pin hole 62 size on cone tooth clamp head 60 is the biggest, is so unfavorable for
String wire 20 is fixed on the center line of axle sleeve 10.In order to prevent string wire 20 position from offseting, the present invention is at cone
The center of the end face of tooth clamp head 60 major part one end is provided with accepting groove 68, is provided with and returns middle part 61 in accepting groove 68,
Described four baffle plates 611,612,613,614 returning middle part 64 to include setting gradually vertically, four baffle plates
611,612,613,614 surround a square opening 63, string wire 20 through square opening 63, four baffle plates 611,
612, string wire 20 is carried out spacing from four direction up and down by 613,614 respectively, and string wire has been effectively ensured
20 with the axiality of axle sleeve 10.
Refer to Fig. 1, described pressing piece 30 is arranged near one of them cone tooth clamp head 60, described elastic component
80 pairs of another cone tooth clamp heads 60 apply elastic force, and cone tooth clamp head 60 is clamped in gland 70 and elastic component
Between 80, string wire 20 is tightened up.When rotary gland 10 makes cone tooth clamp head 60 move in the middle part of stressometer,
Cone tooth clamp head 60 compression elastic piece 80, can unclamp string wire 20；When rotary gland 10 makes cone tooth clamp head 60
Outside stressometer during side shifting, elastic component 80 is released, and string wire 20 is tensioned.Elastic component 80 is utilized to adjust
The tightness of whole string wire 20, can be adjusted the vibration frequency of string wire 20 equally.
Preferably: also include screw shell 92 and stopper 94, screw shell 92 is arranged in axle sleeve 10, plug
Son 94 is arranged in screw shell 92, and stopper 94 is threadeded with screw shell 92.The middle part of stopper 94
It is provided with the resigning hole 942 passed for string wire 20, in elastic component 80 is housed in screw shell 92 and be supported on plug
Between son 94 and cone tooth clamp head 60.Screw shell 92 and cone tooth clamp head 60 end are equipped with flange,
One lead 96 is axially across cone tooth clamp head 60 and the flange of screw shell 92, to cone tooth clamp head 60
Movement guide, also function to the effect of spline.It practice, the structure of screw shell 92 and threaded sleeve
The structure of 50 is identical, and the structure of stopper 94 is identical with the structure of rotor 40, stopper 94 and screw shell 92
Thread interference coordinates vertically.
Refer to Fig. 1, be additionally provided with sealing mechanism in the outside of gland 70 in axle sleeve 10, sealing mechanism includes propping up
Support member 01, sealing ring 02 and seal screw cap 03, sealing ring 02 is pressed on support member 01 by seal screw cap 03,
Seal screw cap 03 is threadeded with axle sleeve 10, and sleeve lining corresponding on sealing ring 02 is smooth surface texture.
The end of two reinforcing bars 05 is inserted the both ends of axle sleeve 10 respectively and threadeds with axle sleeve 10.In production,
Can adjust string wire vibration frequency in the steps below:
1) in the case of reinforcing bar 05 (reinforcing bar can also replace with pull bar) does not stresses, adjust gland 70 and/
Or stopper 94 compresses or discharge elastic component 80, the vibration frequency of string wire 20 is made to reach basic value；
2) reinforcing bar 05 is applied a specified maximum pull, adjust the position of pressing piece 30, make string wire 20
Vibration frequency reach predetermined value；
3) step 1 is repeated) and 2), in the case of not stressing until reinforcing bar 05, the vibration frequency of string wire 20 is leaned on
Nearly basic value, and, reinforcing bar 05 is close pre-by the vibration frequency of string wire 20 in the case of specified maximum pull
Definite value.
The above, only the utility model preferred embodiment, therefore it is real to limit the utility model according to this
The scope executed, the equivalence change i.e. made according to the utility model the scope of the claims and description and modification, all should
Still belong in the range of the utility model contains.
Claims (10)
1. a vibratory stress gauge, including axle sleeve and the string wire that is placed in axle sleeve, the two ends of string wire are fixed on
In axle sleeve, it is characterised in that: also include being arranged on the pressing piece that axle sleeve is interior and is pressed on string wire, described pressing
Part can axially move in axle sleeve thus adjusts the position that pressing piece is pressed on string wire.
A kind of vibratory stress gauge the most according to claim 1, it is characterised in that: also include being arranged on
Rotor in axle sleeve, the middle part of rotor is provided with the axially extending bore passed for string wire, rotor is additionally provided with radial hole,
Described pressing piece is rod-like structure and is arranged in radial hole, rotates rotor and rotor can be made to be axially moveable.
A kind of vibratory stress gauge the most according to claim 2, it is characterised in that: also include being arranged on
Threaded sleeve in axle sleeve, rotor is arranged in threaded sleeve, and rotor is threadeded with threaded sleeve.
A kind of vibratory stress gauge the most according to claim 3, it is characterised in that: rotor is working of plastics,
Screw thread on rotor outer periphery face includes spaced leading portion screw thread and back segment screw thread, leading portion screw thread and back segment spiral shell
Line and the screw thread interference fit in the axial direction of threaded sleeve.
A kind of vibratory stress gauge the most according to claim 3, it is characterised in that: also include two right
Being respectively used to the cone tooth clamp head at fixing string wire two ends in claiming to be arranged on axle sleeve, cone tooth clamp centriciput is provided with confession
The pin hole that string wire passes, the end face of cone tooth clamp head microcephaly one end is provided with multiple cutting groove thus at cone tooth folder
The end of the end of a thread forms multiple jaw, and cone tooth clamp head is provided with nut, and fastening nut can make jaw tighten up also
Hold string wire tightly.
A kind of vibratory stress gauge the most according to claim 5, it is characterised in that: also include two pressures
Lid, gland is threaded in axle sleeve, and two cone tooth clamp heads are pushed down spacing at axle sleeve by two glands respectively
In；Described pressing piece is arranged near one of them cone tooth clamp head, and cone tooth clamp head pushes down threaded sleeve.
A kind of vibratory stress gauge the most according to claim 6, it is characterised in that: gland is metalwork,
Being provided with annular groove in the middle part of gland outer peripheral face, the screw thread on gland outer peripheral face is divided into leading portion screw thread by annular groove
With rear end screw thread, gland radially cuts at least two slots to make way of setting at its annular groove position so that pressing
The middle part of lid forms the screw thread interference in the axial direction of serpentine configuration, gland leading portion screw thread and back segment screw thread and axle sleeve
Coordinate.
A kind of vibratory stress gauge the most according to claim 5, it is characterised in that: cone tooth clamp head is big
The center of the end face of first end is provided with accepting groove, is provided with and returns middle part in accepting groove, described in return middle part to include along axle
To four baffle plates set gradually, four baffle plates surround a square opening, and string wire passes square opening, four gears
String wire is carried out spacing from four direction up and down by plate respectively.
A kind of vibratory stress gauge the most according to claim 6, it is characterised in that: at gland in axle sleeve
Outside be additionally provided with sealing mechanism, sealing mechanism includes support member, sealing ring and seal screw cap, seal screw cap
Being pressed on support member by sealing ring, seal screw cap is connected with sleeve thread, sleeve lining corresponding on sealing ring
It it is smooth surface texture.
A kind of vibratory stress gauge the most according to claim 1, it is characterised in that: described axle sleeve two ends
The inner surface in portion is provided with helicitic texture, in reinforcing bar head is inserted into axle sleeve and is connected with sleeve thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620080367.3U CN205538037U (en) | 2016-01-27 | 2016-01-27 | Vibrating wire type taseometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620080367.3U CN205538037U (en) | 2016-01-27 | 2016-01-27 | Vibrating wire type taseometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205538037U true CN205538037U (en) | 2016-08-31 |
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ID=56770227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620080367.3U Active CN205538037U (en) | 2016-01-27 | 2016-01-27 | Vibrating wire type taseometer |
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| Country | Link |
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| CN (1) | CN205538037U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106563877A (en) * | 2016-10-27 | 2017-04-19 | 华侨大学 | Connecting method for vibration wire in vibration wire type earth pressure gauge |
| CN108181027A (en) * | 2018-01-05 | 2018-06-19 | 北京科技大学 | A kind of type vibration wire borehole stressmeter mounting head |
| CN109540348A (en) * | 2018-11-19 | 2019-03-29 | 南京邮电大学 | A kind of stress measurement sensor based on spring antenna |
| CN110332914A (en) * | 2019-07-29 | 2019-10-15 | 基康仪器股份有限公司 | A kind of type vibration wire water pressure resistance strain gauge |
| CN112945424A (en) * | 2021-01-19 | 2021-06-11 | 南京工程学院 | Vibrating wire type surface strain gauge and use method thereof |
-
2016
- 2016-01-27 CN CN201620080367.3U patent/CN205538037U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106563877A (en) * | 2016-10-27 | 2017-04-19 | 华侨大学 | Connecting method for vibration wire in vibration wire type earth pressure gauge |
| CN106563877B (en) * | 2016-10-27 | 2018-10-16 | 华侨大学 | The connection method of vibratory string in a kind of type vibration wire earth pressure gauge |
| CN108181027A (en) * | 2018-01-05 | 2018-06-19 | 北京科技大学 | A kind of type vibration wire borehole stressmeter mounting head |
| CN108181027B (en) * | 2018-01-05 | 2023-10-13 | 北京科技大学 | Vibrating wire type drilling stress meter mounting head |
| CN109540348A (en) * | 2018-11-19 | 2019-03-29 | 南京邮电大学 | A kind of stress measurement sensor based on spring antenna |
| CN110332914A (en) * | 2019-07-29 | 2019-10-15 | 基康仪器股份有限公司 | A kind of type vibration wire water pressure resistance strain gauge |
| CN112945424A (en) * | 2021-01-19 | 2021-06-11 | 南京工程学院 | Vibrating wire type surface strain gauge and use method thereof |
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