CN208537293U - A kind of new concrete axial tension device - Google Patents
A kind of new concrete axial tension device Download PDFInfo
- Publication number
- CN208537293U CN208537293U CN201821058332.5U CN201821058332U CN208537293U CN 208537293 U CN208537293 U CN 208537293U CN 201821058332 U CN201821058332 U CN 201821058332U CN 208537293 U CN208537293 U CN 208537293U
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- China
- Prior art keywords
- gear
- motor
- slide plate
- new concrete
- braking system
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- 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.)
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Abstract
The utility model discloses a kind of new concretes, and device is axially stretched, including bracket chassis, rack plate and scaffold pole positioned at two sides, the slide plate with its close contact is provided in the rack plate, it further include motor, piece fixture and the braking system being arranged in below the rack plate, it is provided with motor gear, working gear and spragging gear in the top of the slide plate, is connected respectively by motor bar, threaded rod and brake bar with the motor of lower section, piece fixture and braking system；Wherein, the piece fixture is fixed on the position of the central axis of device, and the motor and braking system are moved with the movement of slide plate, alternately engages so that being located in the middle working gear with the motor gear and spragging gear for being located at two sides.The utility model will not only solve slippage in drawing process between loading end and test specimen, and can be braked in any time of load, and data record is convenient for.
Description
Technical field
The utility model belongs to mechanical performance of concrete testing equipment field, and in particular to a kind of new concrete axially drawing
Stretch device.
Background technique
Concrete axial tensile strength is to reflect that the important parameter of material property and the important design of concrete structure refer to
Mark.In practical measurement, the measuring method of the axial tensile strength of concrete mainly has splitting tensile test and the examination of axle center tension
Test two kinds.For splitting tensile test, the result that axle center tensile test obtains is more intuitive, also truer.Traditional coagulation
Native axis pulling experiment device is stretched after clamping at concrete sample both ends with clamp, is tried between conventional apparatus clamp and test block
It can be slided when testing, influence test accuracy, and conventional method can not carry out the axis pulling experiment of System for Large-scale Specimen.
Utility model content
In view of the above-mentioned problems, the utility model proposes a kind of new concretes, and device is axially stretched.
It realizes above-mentioned technical purpose, reaches above-mentioned technical effect, the utility model is achieved through the following technical solutions:
A kind of new concrete axial tension device, including bracket chassis, rack plate and the scaffold pole positioned at two sides,
It is provided with the slide plate with its close contact in the rack plate, further includes the electricity being arranged in below the rack plate
Machine, piece fixture and braking system are provided with motor gear, working gear and spragging gear in the top of the slide plate, point
Not Tong Guo motor bar, threaded rod and brake bar be connected with the motor of lower section, piece fixture and braking system；Wherein, the examination
Part fixture is fixed on the position of the central axis of device, and the motor and braking system are moved with the movement of slide plate, thus
It is alternately engaged so that being located in the middle working gear with the motor gear and spragging gear for being located at two sides.
It is provided on the rack plate or the slide plate for passing through as a further improvement of the utility model,
The through hole for wearing motor bar, threaded rod and brake bar, the shape of the through hole on the rack plate are positioned at two sides
Strip hole and be located in the middle round hole, the shape of the through hole on the slide plate be positioned at two sides round hole and
It is located in the middle strip hole.
The length of the strip hole is greater than the mobile position of the slide plate as a further improvement of the utility model,
It moves, the moving displacement of the slide plate is greater than the maximum between the working gear and the motor gear or spragging gear
Distance.
As a further improvement of the utility model, including multiple and different radiuses working gear it is replaceable with it is described
Threaded rod is connected, and the radius of the working gear is greater than the radius of the motor gear.
Folder steel is also provided between the working gear and threaded rod as a further improvement of the utility model,
Pearl forms double-sleeve structure between the working gear and the folder steel ball.
The braking system includes acting on snap ring and the effect of threaded rod as a further improvement of the utility model,
In the jack of slide plate, the snap ring is connected with the jack, and is vertically connected with the brake bar.
The braking system includes well buffer bar as a further improvement of the utility model, the buffer bar and
Buffer spring is also provided between the spragging gear.
The piece fixture is flute profile as a further improvement of the utility model, is processed into circular arc in its right angle
Shape structure.
The top surface of the rack plate is the groove to lower recess as a further improvement of the utility model, described
Slide plate be located in the groove of rack plate.
The utility model has the beneficial effects that the device will solve drawing by using the flute profile fixture matched with test specimen
Slippage during stretching between loading end and test specimen；Using stage-geared, electrical speed, which is adjusted, realizes that test specimen low speed is steady
Determine tensile loads；Using driving separation and the braking system of synchronous brake, can make in load any time load and without revolution,
Convenient for recording phenomenon during loading.
Detailed description of the invention
Fig. 1 is this practical overall structure diagram；
Fig. 2 rack plate schematic diagram；
Fig. 3 skateboard schematic diagram；
Fig. 4 working gear and its double-tube structure schematic diagram；
Fig. 5 motor schematic diagram；
Fig. 6 brake system structure schematic diagram；
Wherein: 1- bracket chassis, 2- scaffold pole, 3- rack plate, 4- piece fixture, 5- press from both sides steel ball, 6- threaded rod, 7-
Working gear, 8- slide plate, 9- motor, 10- buffer bar, 11- buffer spring, 12- motor bar, 13- motor gear, 14- brake tooth
Wheel, 15- snap ring, 16- jack, 17- brake bar.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain that this is practical
It is novel, it is not used to limit the utility model.
The application principle of the utility model is explained in detail with reference to the accompanying drawing.
For concrete axial to stretching device, including bracket chassis 1 designed by the utility model as shown in figures 1 to 6,
The frame that rack plate 3 and scaffold pole 2 positioned at two sides are constituted is provided with strong for detecting Analysis of Concrete Tensile on frame
Spend mechanism.
The tensile strength mechanism includes being provided with the slide plate 8 with its close contact in the rack plate 3, described
The top surface of rack plate 3 be groove to lower recess, the slide plate 8 is located in the groove of rack plate 3, and in a groove
Sliding.It further include motor 9, piece fixture 4 and the braking system being arranged in below the rack plate 3, in the slide plate 8
Top be provided with motor gear 13, working gear 7 and spragging gear 14, respectively pass through motor bar 12, threaded rod 6 and brake bar
17 are connected with the motor 9 of lower section, piece fixture 4 and braking system.Wherein, the piece fixture 4 is fixed on the center of device
The position of axis, the motor 9 and braking system are moved with the movement of slide plate, so that being located in the middle working gear
7 alternately engage with the motor gear 13 and spragging gear 14 for being located at two sides.
In order to adequately clamp sample, the piece fixture 4 is flute profile.An embodiment of the present invention
In, sample detected is processed into dumbbell shape, and the time fixture 4 is processed into and matches flute profile with dumbbell shape shape.Together
Shi Qi right angle is processed into convex structure, concentrates to avoid stress is generated in test specimen loading process at this, and can prevent
Only component slides at this, to influence test result.
In order to cooperate the movement of slide plate 8, it is provided on the rack plate 3 or the slide plate 8 for through electricity
The through hole of machine bar 12, threaded rod 6 and brake bar 17.It is located at the shape of the through hole on the rack plate 3 as Figure 2-3
Shape be positioned at two sides strip hole and be located in the middle round hole, the shape of the through hole on the slide plate 8 be positioned at
The round hole of two sides and it is located in the middle strip hole.The length of the strip hole is greater than the moving displacement of the slide plate 8, institute
The moving displacement for the slide plate 8 stated is greater than between the working gear 7 and the motor gear 13 or spragging gear 14 most
Big distance.
The braking system includes the snap ring 15 for acting on threaded rod 6 and the jack 16 for acting on slide plate 8, described
Snap ring 15 is connected with the jack 16, and is vertically connected with the brake bar 17.The slide plate 8 is to pass through jack
16 effect slidings.When test load, slide plate 8 slides to the right under the action of jack 16, and motor moves right with slide plate,
Until motor gear 13 is engaged with working gear.Motor power is connected, motor gear starts turning, and working gear is driven to turn
Dynamic, threaded rod 6 generates the power pulled up, at this point, device enters test phase.In test process, when needs stop to observe examination
When testing specific phenomenon or when test specimen is drawn bad when, motor power is turned off afterwards it is noted that first brake at this time, is prevented electric in motor
Working gear generation rotates backward after source is closed, and threaded rod is fallen after rise.The present apparatus uses double brake measure: being not only provided with can
The spragging gear 14 being meshed with working gear 7 is also provided with the snap ring 15 for acting on threaded rod 6.Make to slide by jack 16
Plate 8 slides to the left, until spragging gear 14 is engaged with working gear 7, simultaneously with this, snap ring 15 is engaged with threaded rod 6.
In addition, working gear 7 is since inertia is also in high speed turn when the moment that spragging gear 14 is engaged with working gear 7
Dynamic state is touched to quickly reduce the kinetic energy generated when the two contact and prevent buffer bar 10 from rigidity occurs with spragging gear 14
It hits, a buffer spring 11 is installed between buffer bar 10 and spragging gear 14.Be rubber layer in snap ring 15, prevent snap ring 15 with
Also increase frictional force between the two while the rigid contact of threaded rod 6, play the effect for preferably blocking threaded rod 6,
Inner rubber is replaceable.Folder steel ball 5, the work are also provided between the working gear 7 and threaded rod 6 simultaneously
Make to form double-sleeve structure between gear 7 and the folder steel ball 5.The braking system includes buffer bar 10 well, described
Buffer bar 10 and the spragging gear 14 between be also provided with buffer spring 11.
The radius of working gear 7 described in the utility model is greater than the radius of the motor gear 13, the spiral shell
Rasp bar 6 can be connected with the working gear 7 of different radii.Due to during the test, working gear 7 and motor gear 13
The linear velocity of occlusion is identical, therefore the gear 7 of different radii can be replaced in test process according to demand to adjust load
Rate.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (9)
1. device, including bracket chassis (1), rack plate (3) and the bracket positioned at two sides is axially stretched in a kind of new concrete
Strut (2), it is characterised in that: be provided with the slide plate (8) with its close contact in the rack plate (3), further include setting
Motor (9), piece fixture (4) and braking system below the rack plate (3), in the top of the slide plate (8)
Provided with motor gear (13), working gear (7) and spragging gear (14), pass through motor bar (12), threaded rod (6) and system respectively
Lever (17) is connected with the motor (9) of lower section, piece fixture (4) and braking system；
Wherein, the piece fixture (4) be fixed on the position of the central axis of device, the motor (9) and braking system with
The movement of slide plate and move so that be located in the middle working gear (7) be located at two sides motor gear (13) and system
Moving gear (14) alternately engages.
2. device is axially stretched in a kind of new concrete according to claim 1, it is characterised in that: in the top of support
It is provided on plate (3) or the slide plate (8) for the through hole through motor bar (12), threaded rod (6) and brake bar (17),
The shape of through hole on the rack plate (3) be positioned at two sides strip hole and be located in the middle round hole, position
In the through hole on the slide plate (8) shape be positioned at two sides round hole and be located in the middle strip hole.
3. device is axially stretched in a kind of new concrete according to claim 2, it is characterised in that: the strip hole
Length is greater than the moving displacement of the slide plate (8), and the moving displacement of the slide plate (8) is greater than the working gear (7)
With the maximum distance between the motor gear (13) or spragging gear (14).
4. device is axially stretched in a kind of new concrete according to claim 3, it is characterised in that: including multiple and different half
The working gear (7) of diameter is replaceable to be connected with the threaded rod (6), and the radius of the working gear (7) is greater than described
Motor gear (13) radius.
5. device is axially stretched in a kind of new concrete according to claim 1, it is characterised in that: in the work tooth
Folder steel ball (5) is also provided between wheel (7) and threaded rod (6), between the working gear (7) and the folder steel ball (5)
Form double-sleeve structure.
6. device is axially stretched in a kind of new concrete according to claim 1, it is characterised in that: the braking system
Including acting on the snap ring (15) of threaded rod (6) and acting on the jack (16) of slide plate (8), the snap ring (15) with it is described
Jack (16) be connected, and be vertically connected with the brake bar (17).
7. device is axially stretched in a kind of new concrete according to claim 1, it is characterised in that: the braking system
Include well buffer bar (10), is also provided with buffer spring between the buffer bar (10) and the spragging gear (14)
(11)。
8. device is axially stretched in a kind of new concrete according to claim 1, it is characterised in that: the piece fixture
(4) it is flute profile, is processed into convex structure in its right angle.
9. device is axially stretched in a kind of new concrete according to claim 1, it is characterised in that: the rack plate
(3) top surface is the groove to lower recess, and the slide plate (8) is located in the groove of rack plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821058332.5U CN208537293U (en) | 2018-07-05 | 2018-07-05 | A kind of new concrete axial tension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821058332.5U CN208537293U (en) | 2018-07-05 | 2018-07-05 | A kind of new concrete axial tension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208537293U true CN208537293U (en) | 2019-02-22 |
Family
ID=65379829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821058332.5U Expired - Fee Related CN208537293U (en) | 2018-07-05 | 2018-07-05 | A kind of new concrete axial tension device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208537293U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916739A (en) * | 2019-03-07 | 2019-06-21 | 大连理工大学 | A method of measurement concrete I-II mixed mode load-displacement full curve |
-
2018
- 2018-07-05 CN CN201821058332.5U patent/CN208537293U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916739A (en) * | 2019-03-07 | 2019-06-21 | 大连理工大学 | A method of measurement concrete I-II mixed mode load-displacement full curve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190222 Termination date: 20210705 |