CN2056747U - Extensometer for force measuring spring structure of screw micrometer - Google Patents
Extensometer for force measuring spring structure of screw micrometer Download PDFInfo
- Publication number
- CN2056747U CN2056747U CN 89205448 CN89205448U CN2056747U CN 2056747 U CN2056747 U CN 2056747U CN 89205448 CN89205448 CN 89205448 CN 89205448 U CN89205448 U CN 89205448U CN 2056747 U CN2056747 U CN 2056747U
- Authority
- CN
- China
- Prior art keywords
- spring
- dynamometer spring
- guide pole
- dynamometer
- extensometer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to an improved precision ranging instrumentation comprising a connector, a dynamometer spring, a steel-band ruler and a screw micrometer, which can be used for measuring in the military cave depot, railway tunnel, the stability in mine laneway and measuring for the deformation of the earth structure. The utility model with a reasonable design is provided with a spring protective system, a spring residual deformation correcting device and a spatial steering mechanism with an orthogonal connection. The utility model can correct the initial position of a force measuring spring and ensure the range accuracy at any time according to the azimuth adjustment connecting direction of the two measured points. The extensometer for force measuring spring structure of screw micrometer can replace the original extensometer or convergence at any place where the original extensometer or convergence meter is used.
Description
The utility model is a kind of improved precision ranging instrument.Be specially adapted to surface deformable measurement, ground or underground structure deformation measurement, can accurately measure the variable in distance of point-to-point transmission.Be widely used in the STABILITY MONITORING and the earth structure deformation observation of military project cave depot, railway tunnel, mine working.
Existing elongation is in respect of dial gauge range finding, steel loop dynamometry structure; Dial gauge range finding spring dynamometry structure; Micrometer caliper range finding, steel loop dynamometry structure.Said structure exists all that instrument is long-term use after, dynamometric system (steel loop or spring) residual deformation occurs and can't eliminate problem, also has dial gauge, problems such as steel loop is fragile, cost is high, spring transverse curvature.
The purpose of this utility model is: design a kind of spring protection system and means for correcting of being equipped with, have one be orthogonal the combination steering mechanism micrometer caliper, spring dynamometry structural stretch meter.
Accompanying drawing 1 is a kind of structural representation of the present utility model.
Accompanying drawing 2 is another kind of structural representations of the present utility model.
Accompanying drawing 3 is the partial cutaway diagrammatic sketch that adopt the spigot nut means for correcting.
Accompanying drawing 4 is the partial cutaway diagrammatic sketch that adopt the setscrew nut means for correcting.
The utility model is like this design: micrometer caliper, the dynamometer spring structural stretch meter is made up of connector (1), dynamometer spring (4) steel band tape (2) and micrometer caliper (3) is characterized in that: this extensometer is found range spring dynamometry, micrometer caliper to combine, and with all component-assembled on an axis.The one end is provided with a space steering mechanism that is orthogonal and makes up.Dynamometer spring is equipped with protection system and residual deformation means for correcting.Feature of the present utility model also is: being orthogonal with plane swivel bearing (8) by connector (22) is connected, and forms space steering mechanism.The means for correcting of dynamometer spring divides two kinds of designs, and a kind of is to process the external thread of a constant pitch and indicate scale on dynamometer spring guide pole (5), at the last spigot nut (6) that adds, utilizes and adjusts the initial position that spigot nut (6) is proofreaied and correct dynamometer spring.Another kind is that the end at dynamometer spring is provided with a catch (9), tapped guide pole cover (11) and a location nut (13) and is threaded with guide pole (5), turn setscrew nut (13), can change the length of guide pole (5), proofread and correct the initial position of dynamometer spring.The protection system of dynamometer spring is made up of guide pole (5) and dynamometer spring guide pin bushing (10).
Be further described below in conjunction with accompanying drawing.
Connector of the present utility model (1) is the device that is used to be connected two measured points with (22), and it is made up of micro precision bearing (21) and fixed mount (20).The one end is connected with the steel band tape frame, and the other end is orthogonal with plane swivel bearing (8) and is connected.Steel band tape (2) is used to measure the above distance of millimeter, and per 2 millimeters are interval with pilot hole on the chi, but resetting.Steel band tape frame one end is connected with micrometer caliper (3).Micrometer caliper (3) is used for measuring the following distance of millimeter, works to adjust band steel ruler tensile force simultaneously.Micrometer caliper (3) one ends are connected with dynamometer spring guide pin bushing (10).One special spring conductor rod (5) is arranged in the dynamometer spring (4), and guide pole one end is connected with the steel band tape locating device.Spring residual deformation means for correcting is housed on the guide pole.Device divides two kinds of designs, and a kind of is that a end at guide pole (5) processes the external thread of a constant pitch, and indicates scale, and at the last spigot nut (6) that adds, adjusts spigot nut (6), can change the initial position of dynamometer spring.Another kind of design is to utilize catch (9), tapped guide pole cover (11) and a location nut (13) to be threaded with guide pole (5), behind the turn guide pole cover (11), tightening position nut (13) guide pole length variations, the initial position of correction dynamometer spring (4).It has steel band tape steady arm (7) steel pin can penetrate the steel band tape pilot hole to play the role of positioning.Steel band tape steady arm (7) one ends are connected with spring conductor rod (5).Plane swivel bearing (8) is used for realizing a revolution in the plane, and swivel bearing (8) one ends in plane are connected with steel band tape, and the other end is orthogonal with connector (22) and is connected.
The utility model is simple in structure, and rigidity is reliable, and volume is little, and is in light weight, the precision height, and cost is low, and all available the utility model of the existing elongation of all uses (convergence) meter occasion substitutes.
Accompanying drawing 1 and accompanying drawing 2 are two Cui embodiment of the present utility model, accompanying drawing 1 adopts the spigot nut means for correcting, accompanying drawing 2 adopts the setscrew nut means for correcting, and accompanying drawing the 3, the 4th, the partial cutaway diagrammatic sketch of each means for correcting, accompanying drawing 5 are partial cutaway diagrammatic sketch of connector and this plane turning axle.The utility model is not limit by these two embodiment.Indicate among the figure and be described as follows: 1. connector; 2. steel band tape; 3. micrometer caliper; 4. dynamometer spring; 5. guide pole; 6. spigot nut; 7. steady arm; 8. plane swivel bearing; 9. catch; 10. dynamometer spring guide pin bushing; 11. guide pole cover; 12. guide pin bushing cap; 13. setscrew nut; 14. holding screw; 15. sleeve; 16. steel ball; 17. connect the chi axle; 18. sleeve cap; 19. connecting rod; 20. fixed mount; 21. miniature bearing; 22. connector.
Claims (4)
1, a kind of improved micrometer caliper; dynamometer spring structural stretch meter; mainly revolving mircrometer gauge by connector, dynamometer spring, steel band tape and bullet forms; it is characterized in that: this extensometer is combined spring dynamometry, micrometer caliper range finding; and with all component-assembled on an axis; the one end has the space steering mechanism that is orthogonal and connects, and dynamometer spring is equipped with protection system and spring residual deformation means for correcting.
2, micrometer caliper according to claim 1, dynamometer spring structural stretch meter is characterized in that: this extensometer one end is orthogonal with plane swivel bearing (8) by connector (22) and is connected, and forms space steering mechanism.
3, according to the described micrometer caliper of claim 1.2., dynamometer spring structural stretch meter, it is characterized in that: the means for correcting of dynamometer spring, process the external thread of a constant pitch at dynamometer spring guide pole (5) one ends, and indicate scale, at the last spigot nut (6) that adds, utilize and adjust the initial position that spigot nut (6) is proofreaied and correct dynamometer spring (4).
4, according to the described micrometer caliper of claim 1.2, dynamometer spring structural stretch meter, it is characterized in that: the means for correcting of dynamometer spring can also utilize catch (9), tapped guide pole cover (11) and a location nut (13) to be threaded with guide pole (5) at guide pole (5) one ends, behind the turn guide pole cover (11), tightening position nut (13), the guide pole length variations, the initial position of correction dynamometer spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89205448 CN2056747U (en) | 1989-10-21 | 1989-10-21 | Extensometer for force measuring spring structure of screw micrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89205448 CN2056747U (en) | 1989-10-21 | 1989-10-21 | Extensometer for force measuring spring structure of screw micrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2056747U true CN2056747U (en) | 1990-05-02 |
Family
ID=4862629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89205448 Expired - Lifetime CN2056747U (en) | 1989-10-21 | 1989-10-21 | Extensometer for force measuring spring structure of screw micrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2056747U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884263A (en) * | 2014-03-24 | 2014-06-25 | 中国矿业大学 | Rod type convergence gauge and using method thereof |
| CN107063062A (en) * | 2017-04-12 | 2017-08-18 | 霍州煤电集团有限责任公司 | A kind of mining tunnel deformation monitoring equipment |
-
1989
- 1989-10-21 CN CN 89205448 patent/CN2056747U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884263A (en) * | 2014-03-24 | 2014-06-25 | 中国矿业大学 | Rod type convergence gauge and using method thereof |
| CN107063062A (en) * | 2017-04-12 | 2017-08-18 | 霍州煤电集团有限责任公司 | A kind of mining tunnel deformation monitoring equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |