CN206258202U - Based on the strain stress detection means connected to arm full-bridge - Google Patents
Based on the strain stress detection means connected to arm full-bridge Download PDFInfo
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- CN206258202U CN206258202U CN201621356552.7U CN201621356552U CN206258202U CN 206258202 U CN206258202 U CN 206258202U CN 201621356552 U CN201621356552 U CN 201621356552U CN 206258202 U CN206258202 U CN 206258202U
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Abstract
The utility model discloses a kind of based on the strain stress detection means connected to arm full-bridge, including connecting plate, fixture block, protective cover, detection bar, detecting element and binding post, described fixture block is connected with one end of connecting plate, described fixture block constitutes a U-shaped mounting groove with connecting plate, it is provided with described fixture block for fixed fixing bolt, described binding post is arranged on the upper end of connecting plate, one end of described detection bar is fixed on the lower end of connecting plate, described protective cover is fixed on the lower end of connecting plate and detection bar is fixed in its cavity, the utility model reasonable in design, by the transmission principle for shaking, strain stress measurement is carried out to plate position, and then assess the firm performance of the mechanism that plate is constituted, while present apparatus compact structure, it is easy to operate, effectively raise the efficiency and effect of detection.
Description
Technical field
The utility model is related to a kind of based on the strain stress detection means connected to arm full-bridge.
Background technology
In reality measurement, equipment is susceptible to vibrations in operation or during being impacted, if impacting or shaking
Amplitude is excessive, there is influence to the overall structure of equipment, larger safety problem is then produced, although now in industry existing all
Many method of testings and device, generally require multiple spot arrangement measurement, not only need many people to be operated, and detection efficiency compared with
It is low.
Utility model content
The purpose of this utility model is to overcome above shortcomings in the prior art, and provides a kind of structure design and close
Reason, to the measurement of the strain stress of device structure based on the strain stress detection means connected to arm full-bridge.
The technical scheme in the invention for solving the above technical problem is：It is a kind of to answer allergic effect based on what is connected to arm full-bridge
Force checking device, including connecting plate, fixture block, protective cover, detection bar, detecting element and binding post, described fixture block be connected
One end connection of plate, described fixture block constitutes a U-shaped mounting groove with connecting plate, is provided with described fixture block for solid
Fixed fixing bolt, described binding post is arranged on the upper end of connecting plate, and one end of described detection bar is fixed on connecting plate
Lower end, described protective cover is fixed on the lower end of connecting plate and detection bar is fixed in its cavity, described detecting element bag
Include the first foil gauge R1, the second foil gauge R2, the 3rd foil gauge R3, the 4th foil gauge R4, the first shielding line L1, secondary shielding line
L2, the 3rd shielding line L3, the 4th shielding line L4, the 5th shielding line L5, the 6th shielding line L6, the 7th shielding line L7 and the 8th screen
Cover line L8, the first described foil gauge R1 and the 4th foil gauge R4 and be separately positioned on the axis direction of detection bar and mutually in opposition
Side is set, and described the second foil gauge R2 and the 3rd foil gauge R3 is separately positioned on the axis vertical direction and phase of detection bar
Mutually set in opposition side, described the first foil gauge R1, the second foil gauge R2, the 3rd foil gauge R3 and the 4th foil gauge R4
It is correspondingly arranged at respectively on the first shielding line L1, secondary shielding line L2, the 3rd shielding line L3 and the 4th shielding line L4, it is described
First shielding line L1, secondary shielding line L2, the 3rd shielding line L3 and the 4th shielding line L4 are sequentially connected four arm full-bridges of composition and connect
The whist circuit of collimation method, the first described shielding line L1 and the tie point of the 4th shielding line L4 are drawn by the 5th shielding line L5,
Described secondary shielding line L2 and the tie point of the 4th shielding line L4 are drawn by the 6th shielding line L6, the first described shielding line L1
Tie point with secondary shielding line L2 is drawn by the 7th shielding line L7, the 3rd described shielding line L3 and the company of the 4th shielding line L4
Contact is drawn by the 8th shielding line L8, the 5th shielding line L5 of extraction, the 6th shielding line L6, the 7th shielding line L7 and the 8th screen
Line L8 is covered to be separately positioned on binding post.
Further：Described detection bar is elasticity sensitivity low-carbon steel material.
Further：The first foil gauge R1, the second foil gauge R2, the 3rd foil gauge R3 described in 4th foil gauge R43.,
4th foil gauge R4 is in series by some working strain gauge R1', R2', R3', R4' and is attached in detection bar successively respectively.
Further：The epoxide-resin glue of oiling 2mm thickness is distinguished in described working strain gauge and the junction of detection bar.
Further：Described binding post be respectively provided with four for accommodate the 5th shielding line L5, the 6th shielding line L6, the
The first through hole and welding groove of the shieldings of seven shielding line L7 and the 8th, described five shielding lines, the 6th shielding line L6, the 7th screen
Cover line L7 and the 8th shielding is each passed through first through hole and is arranged on welding groove, a side of described welding groove also sets up
There is the second slotted eye for setting resistance strain gauge lead.
The utility model compared with prior art, with advantages below and effect：Reasonable in design, by the biography for shaking
Defeated principle, carries out strain stress measurement to plate position, and then assesses the firm performance of the mechanism that plate is constituted, while the present apparatus
Compact structure, it is easy to operate, effectively raise the efficiency and effect of detection.
Brief description of the drawings
Fig. 1 is the structural representation that the utility model embodiment is based on the strain stress detection means to the connection of arm full-bridge.
Fig. 2 is the first foil gauge of the utility model embodiment R1, the second foil gauge R2, the 3rd foil gauge R3 and the 4th should
Become the setting schematic diagram of piece R4.
Fig. 3 is the connection circuit diagram of the utility model embodiment detecting element.
Fig. 4 is the connection circuit diagram of the utility model embodiment working strain gauge series connection.
Fig. 5 is the structural representation of the utility model embodiment binding post.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following examples are right
It is of the present utility model explanation and the utility model is not limited to following examples.
Referring to Fig. 1-Fig. 5, the present embodiment is a kind of based on the strain stress detection means connected to arm full-bridge, including connecting plate
1st, fixture block 2, protective cover 3, detection bar 4, detecting element and binding post 5, described fixture block 2 are connected with one end of connecting plate 1, institute
The fixture block 2 stated constitutes a U-shaped mounting groove with connecting plate 1, is provided with for fixed fixing bolt on described fixture block 2
21, described binding post 5 is arranged on the upper end of connecting plate 1, and one end of described detection bar 4 is fixed on the lower end of connecting plate 1, institute
The protective cover 3 stated is fixed on the lower end of connecting plate 1 and detection bar 4 is fixed in its cavity, and described detecting element includes the
One foil gauge R1, the second foil gauge R2, the 3rd foil gauge R3, the 4th foil gauge R4, the first shielding line L1, secondary shielding line L2,
3rd shielding line L3, the 4th shielding line L4, the 5th shielding line L5, the 6th shielding line L6, the shieldings of the 7th shielding line L7 and the 8th
Line L8, the first described foil gauge R1 and the 4th foil gauge R4 are separately positioned on the axis direction of detection bar 4 and mutually in opposition
Side is set, and described the second foil gauge R2 and the 3rd foil gauge R3 is separately positioned on the axis vertical direction and phase of detection bar 4
Mutually set in opposition side, described the first foil gauge R1, the second foil gauge R2, the 3rd foil gauge R3 and the 4th foil gauge R4
It is correspondingly arranged at respectively on the first shielding line L1, secondary shielding line L2, the 3rd shielding line L3 and the 4th shielding line L4, it is described
First shielding line L1, secondary shielding line L2, the 3rd shielding line L3 and the 4th shielding line L4 are sequentially connected four arm full-bridges of composition and connect
The whist circuit of collimation method, the first described shielding line L1 and the tie point of the 4th shielding line L4 are drawn by the 5th shielding line L5,
Described secondary shielding line L2 and the tie point of the 4th shielding line L4 are drawn by the 6th shielding line L6, the first described shielding line L1
Tie point with secondary shielding line L2 is drawn by the 7th shielding line L7, the 3rd described shielding line L3 and the company of the 4th shielding line L4
Contact is drawn by the 8th shielding line L8, the 5th shielding line L5 of extraction, the 6th shielding line L6, the 7th shielding line L7 and the 8th screen
Cover line L8 to be separately positioned on binding post 5, described detection bar 4 is elasticity sensitivity low-carbon steel material, described working strain gauge
Distinguish the epoxide-resin glue of oiling 2mm thickness in junction with detection bar 4.
The utility model a kind of operation principle and step based on the strain stress detection means connected to arm full-bridge：Use
One side of preceding described welding groove 52 is additionally provided with the second slotted eye 53 for setting resistance strain gauge lead, it is described from
5th shielding line L5 of whist circuit extraction, the 6th shielding line L6, the 7th shielding line L7 and the 8th shielding line L8 press full-bridge
Access method accesses resistance strain gauge and measures, and the present apparatus is fixed on test block plate face axis, to test plate axis
Position carries out load impactings at different levels, and test plate is displacement receive that load impacting produces axis so that its geometry with
And size changes, this change is sent to the position of detection bar 4, and the axial position of detection bar 4 is similarly subjected to test plate vibrations
The strain of transmission, described resistance strain gauge measures strain now in the axial direction of detection bar 4, while the orientation according to test is carried
Lotus, the variable quantity of correspondence detection bar 4 axial strain ε can be drawn by σ=P/A, and in measurement, the present apparatus is fixed on needs test
The test position of object, test component attempts vibrations, now described the 5th screen drawn from whist circuit in working order
Line L5, the 6th shielding line L6, the 7th shielding line L7 and the 8th shielding line L8 is covered to enter by full-bridge access method access resistance strain gauge
Row measurement, strain is drawn according to the computing rule that foil gauge full-bridge accesses circuit, while drawing correspondence according to early stage test data
STRESS VARIATION, the present apparatus can be used for measurement apparatus when circulation vibrations are received, and strain stress that its support member is subject to changes,
And then for the security of check and evaluation support member, as a further improvement, the first foil gauge R1, described in reference picture 4
Two foil gauge R2, the 3rd foil gauge R3, the 4th foil gauge R4 are in series by some working strain gauges and are attached to successively respectively
In detection bar 4, some working strain gauges are according to the first foil gauge R1, the second foil gauge R2, the 3rd foil gauge R3, the 4th foil gauge
The distribution rule of R4 is successively set in detection bar 4 so that measurement data is more accurate, as a further improvement：According to Fig. 5,
Described binding post 5 be respectively provided with four for accommodate the 5th shielding line L5, the 6th shielding line L6, the 7th shielding line L7 and the
The first through hole 51 and welding groove 52 of eight shieldings, described five shielding lines, the 6th shielding line L6, the 7th shielding line L7 and the
Eight shieldings are each passed through first through hole 51 and are arranged on welding groove 52, a side of described welding groove 52 be additionally provided with for
Second slotted eye 53 of resistance strain gauge lead is set, and when resistance strain gauge is accessed, the wiring of resistance strain gauge passes through the second groove
Hole 53 is arranged in welding groove 52, now the shielding line and lead that are arranged in groove is welded so that structure is more steady
Gu, prevent sealing-off.
Above content described in this specification is only to the utility model example explanation.The utility model
Person of ordinary skill in the field can make various modifications or supplement to described specific embodiment or use class
As mode substitute, content without departing from the utility model specification or surmount model defined in the claims
Enclose, protection domain of the present utility model all should be belonged to.
Claims (5)
1. a kind of based on the strain stress detection means connected to arm full-bridge, it is characterised in that：Including connecting plate, fixture block, protection
Cover, detection bar, detecting element and binding post, described fixture block are connected with one end of connecting plate, described fixture block and connecting plate
A U-shaped mounting groove is constituted, is provided with described fixture block for fixed fixing bolt, described binding post is arranged on
The upper end of connecting plate, one end of described detection bar is fixed on the lower end of connecting plate, and described protective cover is fixed on connecting plate
Simultaneously be fixed on detection bar in its cavity by lower end, and described detecting element includes the first foil gauge R1, the second foil gauge R2, the 3rd
Foil gauge R3, the 4th foil gauge R4, the first shielding line L1, secondary shielding line L2, the 3rd shielding line L3, the 4th shielding line L4,
Five shielding line L5, the 6th shielding line L6, the 7th shielding line L7 and the 8th shielding line L8, the first described foil gauge R1 and the 4th
Foil gauge R4 is separately positioned on the axis direction of detection bar and is mutually set in opposition side, described the second foil gauge R2 and
3rd foil gauge R3 is separately positioned on the axis vertical direction of detection bar and is mutually set in opposition side, the first described strain
Piece R1, the second foil gauge R2, the 3rd foil gauge R3 and the 4th foil gauge R4 are correspondingly arranged at the first shielding line L1, second respectively
On shielding line L2, the 3rd shielding line L3 and the 4th shielding line L4, described the first shielding line L1, secondary shielding line L2, the 3rd
Shielding line L3 and the 4th shielding line L4 are sequentially connected the whist circuit for constituting four arm full-bridge connections, the first described shielding
The tie point of line L1 and the 3rd shielding line L3 is drawn by the 5th shielding line L5, described secondary shielding line L2 and the 4th shielding line L4
Tie point drawn by the 6th shielding line L6, the tie point of described the first shielding line L1 and secondary shielding line L2 is by the 7th shielding
Line L7 is drawn, and the 3rd described shielding line L3 and the tie point of the 4th shielding line L4 drawn by the 8th shielding line L8, and the of extraction
Five shielding line L5, the 6th shielding line L6, the 7th shielding line L7 and the 8th shielding line L8 are separately positioned on binding post.
2. according to claim 1 based on the strain stress detection means connected to arm full-bridge, it is characterised in that：Described
Detection bar is elasticity sensitivity low-carbon steel material.
3. according to claim 1 based on the strain stress detection means connected to arm full-bridge, it is characterised in that：4th should
Become the first foil gauge R1, the second foil gauge R2, the 3rd foil gauge R3, the 4th foil gauge R4 described in piece R43. respectively by some works
Make foil gauge R1', R2', R3', R4' to be in series and be attached in detection bar successively.
4. according to claim 3 based on the strain stress detection means connected to arm full-bridge, it is characterised in that：Described
Distinguish the epoxide-resin glue of oiling 2mm thickness in the junction of working strain gauge and detection bar.
5. according to claim 3 based on the strain stress detection means connected to arm full-bridge, it is characterised in that：Described
Binding post be respectively provided with four for accommodate the 5th shielding line L5, the 6th shielding line L6, the 7th shielding line L7 and the 8th shielding
First through hole and welding groove, described five shielding lines, the 6th shielding line L6, the shielding difference of the 7th shielding line L7 and the 8th
It is arranged on welding groove through first through hole, a side of described welding groove is additionally provided with draws for setting resistance strain gauge
Second slotted eye of line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621356552.7U CN206258202U (en) | 2016-12-12 | 2016-12-12 | Based on the strain stress detection means connected to arm full-bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621356552.7U CN206258202U (en) | 2016-12-12 | 2016-12-12 | Based on the strain stress detection means connected to arm full-bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206258202U true CN206258202U (en) | 2017-06-16 |
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ID=59028759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621356552.7U Active CN206258202U (en) | 2016-12-12 | 2016-12-12 | Based on the strain stress detection means connected to arm full-bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206258202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112305754A (en) * | 2019-07-26 | 2021-02-02 | 成都理想境界科技有限公司 | Scanning actuator, optical fiber scanning device and scanning display equipment |
-
2016
- 2016-12-12 CN CN201621356552.7U patent/CN206258202U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112305754A (en) * | 2019-07-26 | 2021-02-02 | 成都理想境界科技有限公司 | Scanning actuator, optical fiber scanning device and scanning display equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201124 Address after: Hangzhou City, Zhejiang province 310030 Xihu District three Town Xiyuan Road No. 10 Patentee after: HUADIAN ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd. Address before: Hangzhou City, Zhejiang province 310030 Xihu District three Town Xiyuan Road No. 10 Patentee before: STATE POWER CORPORATION OF HYDROPOWER CONSTRUCTION EQUIPMENT QUALITY AND TESTING CENTER |