CN216816328U - Spring type mechanical loading device for persistent load test - Google Patents
Spring type mechanical loading device for persistent load test Download PDFInfo
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- CN216816328U CN216816328U CN202220081413.7U CN202220081413U CN216816328U CN 216816328 U CN216816328 U CN 216816328U CN 202220081413 U CN202220081413 U CN 202220081413U CN 216816328 U CN216816328 U CN 216816328U
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Abstract
The utility model provides a spring mechanical loading device for lasting load test, is including the base that is used for placing the component, and the vertical reaction column that sets up of base upper surface, the top level of reaction column set up the roof, the vertical removal of roof sets up at the top of reaction column, wears to be equipped with the loading nut who moves on the horizontal direction on the roof, and loading nut threaded connection has the loading bolt that moves on vertical direction, and the vertical scale that is used for the record loading bolt to reciprocate the position on the loading bolt, and loading nut and vertical setting loading spring are passed to the other end of loading bolt, and loading spring's the other end setting is used for pressing the biography power piece on the component. The loading nut can be horizontally arranged on the top plate in a moving mode, the position of the top plate can be adjusted according to the height of the component, and the application range of the device is expanded; the loading bolt can be loaded to a proper position according to the force loaded as required, the operation is convenient, the loading bolt can be adjusted at any time to supplement the deformation, and the accuracy of the test is ensured.
Description
Technical Field
The utility model belongs to the field of mechanical loading devices, and particularly relates to a spring type mechanical loading device for a persistent load test.
Background
In the loading method of the structural member test, a mechanical loading device is simple and easy to implement, the endurance load test of the structural member is common in the test of the structural member, the loading position of the existing mechanical loading device of the endurance load test is not easy to adjust, the loading force is not easy to calculate, and the operation is inconvenient.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem that the lasting load of the structural part is not easy to load, the utility model provides a spring type mechanical loading device for a lasting load test.
The purpose of the utility model is realized by adopting the following technical scheme. The spring type mechanical loading device for the endurance load test comprises a base for placing a component to be tested, wherein a plurality of reaction columns are vertically arranged on the upper surface of the base, top plates are horizontally arranged at the tops of the reaction columns, the top plates are vertically movably arranged at the tops of the reaction columns, loading nuts which move in the horizontal direction penetrate through the top plates, the loading nuts are in threaded connection with loading bolts which move in the vertical direction, graduated scales used for recording the up-and-down movement positions of the loading bolts are vertically arranged on the loading bolts, the other ends of the loading bolts penetrate through the loading nuts and are vertically provided with loading springs, and force transmission blocks used for pressing the component are arranged at the other ends of the loading springs.
Further, a support for placing a component is arranged in the middle of the upper surface of the base.
Furthermore, the reaction columns are arranged at four corners of the base and the top plate.
Furthermore, a pressure head in contact with the component is arranged on the bottom surface of the force transmission block.
Furthermore, the top of the reaction column is provided with threads, and the top plate is arranged at the top of the reaction column through a fixing bolt.
Furthermore, a through cross-shaped sliding rail is arranged in the middle of the top plate, and the loading nut is arranged on the sliding rail in a sliding mode.
Furthermore, the upper surface of roof sets up the flexible axle, and flexible axle one end is fixed on the roof, and the other end removes and sets up in the specific scale position department of scale.
Compared with the prior art, the utility model discloses an useful part lies in:
1. the loading nut can be horizontally arranged on the top plate in a movable mode, so that the loading position of the component can be adjusted according to the specific shape of the component, the position of the top plate can also be adjusted according to the height of the component, and the application range of the device is expanded;
2. the graduated scale moves along with loading bolt, loading spring, can load loading bolt to suitable position as required loaded power, convenient operation, at the loading in-process, according to the deformation of component, can adjust the loading bolt at any time and supply deformation, guarantee experimental accuracy.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a front view of an embodiment of a spring-loaded mechanical loading device for a endurance load test of the present invention;
fig. 2 is a top view of an embodiment of a spring-loaded mechanical loading device for a endurance load test according to the present invention.
[ reference numerals ]
1-base, 2-reaction column, 3-top plate, 4-fixing bolt, 5-support, 6-component, 7-sliding track, 8-loading nut, 9-loading bolt, 10-graduated scale, 11-loading spring, 12-force-transmission block, 13-pressure head and 14-flexible shaft.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The utility model discloses an embodiment of a spring type mechanical loading device for a permanent load test, which comprises a base 1, a reaction column 2, a top plate 3, a fixing bolt 4, a support 5, a component 6, a sliding track 7, a loading nut 8, a loading bolt 9, a graduated scale 10, a loading spring 11, a force transmission block 12, a pressure head 13 and a flexible shaft 14, and is shown in figures 1 to 2.
Base 1 sets up on the platform, and four angles of its upper surface are each vertical to set up a reaction column 2, and the top of reaction column 2 is supported and is set up roof 3, and four angles of roof 3 can be dismantled with the top of reaction column 2 and be connected for roof 3 can reciprocate and fix in suitable position. In this embodiment, the top of reaction post 2 sets up the screw thread, and four angles of roof 3 are seted up the through-hole and are established on corresponding reaction post 2, and the upper and lower side at every angle of roof 3 all sets up fixing bolt 4, and fixing bolt 4 and the 2 threaded connection of reaction post that correspond reciprocate roof 3 to suitable position, then make fixing bolt 4 screw up and support at roof 3 to it is fixed to make roof 3.
A plurality of seats 5 are provided in the middle of the upper surface of the base for supporting members 6. The top plate 3 is supported by a steel plate with larger thickness, a cross-shaped sliding rail 7 is arranged in the middle of the top plate, and the sliding rail 7 vertically penetrates through the top plate 3. Slide in the slide rail 7 and set up loading nut 8, in this embodiment, loading nut 8's screw hole vertical setting, annular groove has been seted up to its outer wall, and the bottom in groove encloses into the square, and the width of the vertical direction in groove can hold the thickness of roof 3 to make loading nut 8 can slide on slide rail 7, simultaneously because the groove is square, make loading nut 8 only can slide and can not rotate on slide rail 7. In other embodiments, a fastening screw may be further disposed on the loading nut 8, so that the loading nut 8 is fixed on the top plate 3 by the fastening screw after the loading nut 8 is moved to a proper position.
The loading nut 8 is in threaded connection with a loading bolt 9, the upper surface of the head of the loading bolt 9 is vertically provided with a graduated scale 10, the lower part of the loading bolt 9 penetrates through the loading nut 8, and the end face of the tail end of the loading bolt is fixed with a loading spring 11. The loading spring 11 is vertically arranged, the tail end of the loading spring is provided with a force transmission block 12, the lower surface of the force transmission block 12 is provided with a pressure head 13 which is used for pressing the upper surface of the component 6, and in the embodiment, the shape of the pressure head is semicircular. In other embodiments, the pressure head 13 may be omitted and the force transfer block 12 may be pressed directly against the upper surface of the component 6.
Set up flexible axle 14 in the optional position of the upper surface of roof 3, the one end of flexible axle 14 is fixed on roof 3, and flexible axle 14 can buckle at will under the effect of external force, and the back of stopping buckling, its shape is fixed, consequently, the position of the other end of flexible axle 14 can remove to required position at will, and flexible axle 14 can adopt the material that can realize the function such as thin iron wire. The scale 10 moves up and down along with the loading bolt 9, when the pressure head 13 is abutted on the upper surface of the member 6, one end of the flexible shaft 14 is moved to a certain position of the scale 10, the scale value at the position is an initial value, the loading bolt 9 is rotated downwards, the position of the scale 10 is changed along with the movement, the scale indicated by the end part of the flexible shaft 14 is a target value, and the difference between the target value and the initial value is the loading movement amount of the loading bolt 9. Of course, in other embodiments, other auxiliary devices may be used to record the initial value and the target value.
By rotating the loading bolt 9, the loading spring 11 is pressed to deform, the pressure of the loading spring 11 is transmitted to the component 6 through the force transmission block 12 and the pressure head 13, and meanwhile, the scale of the graduated scale 10 is changed in the vertical direction, the size of the loading force can be obtained through the formula F ═ k · x (k is the spring stiffness coefficient, the unit is KN/mm, and x is the numerical value variation of the graduated scale 10, and the unit is mm), and the permanent load can be applied to the component 6 by keeping the position of the graduated scale 10 unchanged.
The working process is as follows: 1. adjusting the fixing bolt 4, adjusting the top plate 3 to be horizontal, and then fastening the fixing bolt 4;
2. arranging a member 6 for experiment on a support 5, adjusting and fixing the position of a loading nut 8 on a sliding track 7 according to experiment requirements;
3. rotating the loading bolt 9 until the ram 13 contacts the member 6 and stops rotating;
4. using auxiliary means to record the scale value x of one of the scales 10 at that time0Reversely calculating the target value x according to the loading target force value F1The calculation formula is x1-x0＝F/k；
5. Continuing to screw in the loading bolt 9 until the numerical value of the graduated scale 10 reaches x1Then stopping loading;
6. if the member 6 deforms to cause automatic unloading, and the unloading exceeds the allowable range, the screwing-in loading bolt 9 is supplemented at any time.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a spring mechanical loading device for lasting load test, is including the base that is used for placing the component that awaits measuring, and the vertical many reaction columns that set up of base upper surface, the top level of reaction column set up roof, its characterized in that: the top plate is vertically movably arranged at the top of the reaction column, a loading nut which moves in the horizontal direction is arranged on the top plate in a penetrating mode, the loading nut is connected with a loading bolt which moves in the vertical direction in a threaded mode, a graduated scale which is used for recording the up-and-down movement position of the loading bolt is vertically arranged on the loading bolt, the other end of the loading bolt penetrates through the loading nut and is vertically provided with a loading spring, and a force transmission block which is pressed on a component is arranged at the other end of the loading spring.
2. A spring-loaded mechanical loading unit for endurance load testing according to claim 1, further comprising: and a support for placing a component is arranged in the middle of the upper surface of the base.
3. A spring-loaded mechanical loading unit for endurance load testing according to claim 1, further comprising: the reaction columns are arranged at four corners of the base and the top plate.
4. A spring-loaded mechanical loading unit for endurance load testing according to claim 1, further comprising: and the bottom surface of the force transmission block is provided with a pressure head which is in contact with the component.
5. The spring type mechanical loading device for the endurance load test according to claim 1, wherein: the top of the reaction column is provided with threads, and the top plate is arranged at the top of the reaction column through a fixing bolt.
6. A spring-loaded mechanical loading unit for endurance load testing according to claim 1, further comprising: and a through cross-shaped sliding rail is arranged in the middle of the top plate, and the loading nut is arranged on the sliding rail in a sliding manner.
7. A spring-loaded mechanical loading unit for endurance load testing according to claim 1, further comprising: the upper surface of roof sets up the flexible axle, and flexible axle one end is fixed on the roof, and the other end removes and sets up the specific scale position department at the scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220081413.7U CN216816328U (en) | 2022-01-11 | 2022-01-11 | Spring type mechanical loading device for persistent load test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220081413.7U CN216816328U (en) | 2022-01-11 | 2022-01-11 | Spring type mechanical loading device for persistent load test |
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| Publication Number | Publication Date |
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| CN216816328U true CN216816328U (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220081413.7U Active CN216816328U (en) | 2022-01-11 | 2022-01-11 | Spring type mechanical loading device for persistent load test |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116923942A (en) * | 2023-09-06 | 2023-10-24 | 弥费科技(上海)股份有限公司 | Running gear for stacker |
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2022
- 2022-01-11 CN CN202220081413.7U patent/CN216816328U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116923942A (en) * | 2023-09-06 | 2023-10-24 | 弥费科技(上海)股份有限公司 | Running gear for stacker |
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