CN203758825U - Space adjusting mechanism of six-vertical-column steel strand tension tester - Google Patents
Space adjusting mechanism of six-vertical-column steel strand tension tester Download PDFInfo
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- CN203758825U CN203758825U CN201420126603.1U CN201420126603U CN203758825U CN 203758825 U CN203758825 U CN 203758825U CN 201420126603 U CN201420126603 U CN 201420126603U CN 203758825 U CN203758825 U CN 203758825U
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- steel strand
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Abstract
The utility model provides a space adjusting mechanism of a six-vertical-column steel strand tension tester, and relates to the design of a main machine of a steel strand tension tester with a top-mounted oil cylinder and the design of a main machine of a common hydraulic universal testing machine with a top-mounted oil cylinder. The space adjusting mechanism is characterized in that 1, a tie-bar (screw type) rotates for adjusting space, and the height of the main machine does not change in a space adjusting process; and 2, the lower end of the tie-bar (namely a screw) and circular holes in the two ends of a lower jaw form plug-in connection, so that a relatively good centering effect is achieved, the increasing of success probability of tests is facilitated, the stability of a testing process, the self rigidity of a machine body and the stability of a pressing root of the tie bar are improved, and meanwhile, a compression space is expanded to be equal to a stretching space.
Description
Technical field
The utility model is involved in the design of oil cylinder overhead steel strand tensile test machine host, is also involved in the design of common oil cylinder overhead universal hydraulic testing machine main frame.Be not involved in steel strand tensile test machine and the universal testing machine of oil cylinder underneath type.
Background technology
Steel strand wires are the concrete reinforced materials that are coiled into by seven high-strength prestressed steel wires, are widely used in the field such as traffic and fundamental construction.Steel strand tensile test machine is to be specifically designed to the special purpose test equipment that detects steel strand wires tensile strength, China starts to produce successively this type of testing equipment from middle nineteen nineties in last century, each manufacturing enterprise is through the renewal of 20 years left and right time and remodel, the now multiple host form of form, substantially be divided into oil cylinder overhead and the large type of oil cylinder underneath type two, wherein on oil cylinder, put type in occupation of the status of dominating and lead developing direction.
At present, domestic produced oil cylinder overhead steel strand tensile test machine, some is without special Space adjustment mechanism, utilizes lifting piston to regulate space, this mode is limited to throw of poston, can only realize adjusting among a small circle.Though some has special regulating device, but be all generally to adopt transmission nut rotation, in adjustment process, leading screw can rise or decline, and the height of main frame is changed thereupon, this just requires to install the testing laboratory of this equipment, need to have enough large upper space can adapt to the variation of height of main frame.
Our company produces this kind of testing equipment and has also experienced three and remodel the cycle, now using six column steel strand tensile test machines of application Ci Zhong Space adjustment mechanism as approved product.
Summary of the invention
The deficiency existing in order to overcome the original main frame type of steel strand tensile test machine self, the utility model provides a kind of brand-new host design scheme.
So-called six columns refer to the general name of two tie-bars of the connection support of oil cylinder overhead main frame and four carrying columns of oil cylinder seat+be connected with lower jaw.
The utility model institute technical solution problem technical scheme: the one, the rotation of the tie-bar of leading screw form, rises upper jaw or declines, and realizes the object that regulates test space, in the process that regulates test space, the height of main frame can not change; The 2nd, the circular hole at the lower end of tie-bar and lower jaw two ends forms plug-type connected mode, increase one-level guide piece, can revise the easy centering occurring of single-stage guiding and depart from, contribute to improve the probability of success of the test and compression stroke expanded to the space that stretches and equate simultaneously.
Due to the singularity of steel strand wires sample, determine that each composition mechanism of steel strand tensile test machine all can impact success or not and the test findings of test, we have just taken into full account these factors in the time of Space adjustment mechanism design.Adopt the basic advantage of this kind of Space adjustment mode to have following several:
1. be the mode of leading screw rotation instead of nut rotation due to what adopt, just upper jaw lifting in the process that regulates space, and leading screw can't move up and down, so the height of main frame can not change.Installing when this machine, the unnecessary reserved larger rising space problem of indoor palpus of going to consider laboratory, also can install and use the machine even if chamber height is more lower slightly.
2. whether steel strand tensile tests is successful, depends on to a great extent the quality of centering.If there is larger swing between stretching jaw, the probability of success of the test will be very low.Adopt Ci Zhong Space adjustment mechanism, be actually and increased one-level guide piece, can revise the easy centering occurring of single-stage guiding and depart from, contribute to improve the probability of success of the test.
3. improve the stability of process of the test.As previously mentioned, adopt Ci Zhong Space adjustment mechanism to be actually and increased one-level guiding, if only have the testing machine of single-stage guide piece to run into irregular or regular sample in bad order, in drawing process, there will be moved jaw dancing, adopt after Liao Cizhong Space adjustment mechanism, the phenomenon swinging is just suppressed significantly, and the degree of stability of test is also with regard to the improve of naturality.
4. improved the rigidity of machine self and stable at all.One end of Ci Zhong Space adjustment mechanism is stationary structure, and the other end is that plug-in type connects, and one end that the rigidity of machine is generally applied is now fixed, and the unsettled nature of the other end will improve.In addition, swing and improved too the stable at all of leading screw (tie-bar) by inhibition.
5. compression stroke is expanded to simultaneously equate with stretching, the test specification of the machine is further strengthened.
Below in conjunction with in conjunction with the accompanying drawings and embodiments the utility model being further illustrated.
Brief description of the drawings
Fig. 1 is main frame profile of the present utility model and structure; Main frame is oil cylinder top load arrangement.
Fig. 2 is leading screw rotating mechanism and driving figure.
Fig. 3 is upper jaw and leading screw connection layout.
Fig. 4 is lower jaw and leading screw connection layout.
1. entablatures in figure, 2. oil cylinder, 3. oil cylinder seat, 4 top boards, 5. lower platen, 6. upper jaw, 7. lower jaw, 8. support, 9. decelerating through motor unit, 10 carrying columns, 11. leading screws (tie-bar), 12. transmission gears, 13. bearings, 14. transmission nuts, 15. fixed guide caps.
Embodiment
Shown in Fig. 1, main frame is oil cylinder above formula structure, is mainly made up of institutes such as entablature (1), oil cylinder (2), oil cylinder seat (3), top board (4), lower platen (5), upper jaw (6), lower jaw (7), (8) four carrying columns of support, two leading screws (11).Wherein two rhizoid thick sticks pull upper jaw to move up in piston uphill process, so also can be called tie-bar.Six roots of sensation column wherein four feed rod upper and lower ends is fixedly connected with support with oil cylinder seat respectively; Two rhizoid thick stick upper and lower ends are connected with entablature gear train and lower jaw plug-in type respectively, and middle part is through oil cylinder seat and upper jaw both sides nut.
Figure 2 shows that the leading screw rotating mechanism and the driving that are installed on entablature, motor and reductor (9) are installed on the rear portion of entablature (1), power is 0.75kW threephase asynchronous machine, and gear (12) is installed on this motor transmission shaft, and the position of gear is higher than crossbeam top.Two rhizoid thick sticks (11) are installed in the hole at entablature two ends, and top adopts key pin formula fixed installation gear, and the mode of transmitting by chain drives leading screw rotation.Be beneficial to leading screw rotation at leading screw and entablature junction installation bearing (13).For should installing outer cover additional, running part attractive in appearance hides.
Figure 3 shows that upper jaw is connected with leading screw.In the two ends circular hole of upper jaw (6), adopt fixed installation to transmit nut (14), this nut and leading screw (11) form screw pair.This nut is fixed, does not allow rotation in the time that kinematic train is worked, both adopted jackscrew fix or gland nut fixing all can, also can adopt two kinds of fixed forms simultaneously.
Figure 4 shows that lower jaw (7) is connected with leading screw.Insert respectively in the circular hole at lower jaw two ends the lower end of two rhizoid thick sticks (11), and gap is 0.5-1.5mm, and the length of insertion should be not less than normal throw of poston while doing experiment.Lower jaw two ends circular hole is suitable for reading should install fixed guide cap (15), with fixed guide cap as guidance set.
Claims (3)
1. six column steel strand tensile test machine Space adjustment mechanisms, motor drives the tie-bar rotation of leading screw form by chain, sprocket drive system, upper jaw lifting can realize tension test and regulate, and the circular hole at two tie-bar lower ends and lower jaw two ends forms plug-type connected mode, and with four carrying columns and the common six column main frames that form of other assembly of main frame.
2. six column steel strand tensile test machine Space adjustment mechanisms according to claim 1, the tie-bar rotation of leading screw form, make upper jaw increase or decline, realizing the object that regulates test space, being characterized in: the height of main frame can not change in the process that regulates test space.
3. six column steel strand tensile test machine Space adjustment mechanisms according to claim 1, the circular hole at the lower end of tie-bar and lower jaw two ends forms plug-type connected mode, be characterized in: increased one-level guide piece, can revise the easy centering occurring of single-stage guiding departs from, obtain better centering effect, contribute to improve the probability of success of the test and improve the stability of process of the test and improved the rigidity of machine self and stablized at all, compression stroke being expanded to simultaneously and equate with stretching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420126603.1U CN203758825U (en) | 2014-03-20 | 2014-03-20 | Space adjusting mechanism of six-vertical-column steel strand tension tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420126603.1U CN203758825U (en) | 2014-03-20 | 2014-03-20 | Space adjusting mechanism of six-vertical-column steel strand tension tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203758825U true CN203758825U (en) | 2014-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420126603.1U Expired - Fee Related CN203758825U (en) | 2014-03-20 | 2014-03-20 | Space adjusting mechanism of six-vertical-column steel strand tension tester |
Country Status (1)
| Country | Link |
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| CN (1) | CN203758825U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403459A (en) * | 2015-12-28 | 2016-03-16 | 天津易联创新机电有限公司 | Tension tester |
| CN105421242A (en) * | 2015-11-17 | 2016-03-23 | 哈尔滨工业大学 | Handheld minitype prestressed wire tensioning device |
| CN108458926B (en) * | 2018-01-30 | 2021-01-05 | 东南大学 | Thermal rigid single-shaft loading device |
-
2014
- 2014-03-20 CN CN201420126603.1U patent/CN203758825U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105421242A (en) * | 2015-11-17 | 2016-03-23 | 哈尔滨工业大学 | Handheld minitype prestressed wire tensioning device |
| CN105403459A (en) * | 2015-12-28 | 2016-03-16 | 天津易联创新机电有限公司 | Tension tester |
| CN105403459B (en) * | 2015-12-28 | 2018-08-07 | 刘波 | Tension tester |
| CN108458926B (en) * | 2018-01-30 | 2021-01-05 | 东南大学 | Thermal rigid single-shaft loading device |
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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 |
Granted publication date: 20140806 Termination date: 20150320 |
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| EXPY | Termination of patent right or utility model |