CN211374023U - Pressure applying structure and drift testing device - Google Patents
Pressure applying structure and drift testing device Download PDFInfo
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- CN211374023U CN211374023U CN201922493986.1U CN201922493986U CN211374023U CN 211374023 U CN211374023 U CN 211374023U CN 201922493986 U CN201922493986 U CN 201922493986U CN 211374023 U CN211374023 U CN 211374023U
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Abstract
The utility model is suitable for a test equipment field provides a structure of exerting pressure and drift testing arrangement. Wherein, the structure of exerting pressure includes: the base is provided with a bearing surface for placing an object to be tested, and the bearing surface is horizontally arranged; the upper plate is positioned above the base and is parallel to the bearing surface, and the upper plate is provided with a pressure bearing surface for bearing test pressure; the pressing and pasting block is arranged on the upper plate and is abutted against the abutting surface of the object to be detected, and the ratio of the area of the abutting surface to the area of the pressed surface is not more than 1/10; the guide structure comprises a first guide piece arranged on the base and a second guide piece arranged on the upper plate and in sliding connection with the first guide piece, and the second guide piece is used for guiding the first guide piece to move up and down. The utility model provides a structure of exerting pressure can improve the equilibrium of atress when guaranteeing that the article that awaits measuring receives the pressure of design, and simple structure is favorable to reduction in production cost.
Description
Technical Field
The utility model belongs to the test equipment field especially relates to a structure of exerting pressure and drift testing arrangement.
Background
When the drift test is performed on the object to be tested, a fixed acting force needs to be applied to the object to be tested with a unit size for a long time. For example, the area of the object to be measured subjected to force is set as a unit length, e.g. 1 x 1cm2The pressure applying structure faces the problem that the object to be measured is small in size and unbalanced stress is easily generated. If the size of the object to be measured is increased, the pressure to be applied is also increased. Because the pressure intensity of the object to be tested is large (such as 4Mpa) in the drift test, the requirement of the test pressure intensity is met by increasing the size of the object to be tested and increasing the applied pressure, and the required pressure intensity is large, which can increase the equipment cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art not enough, provide a structure of exerting pressure and drift testing arrangement, it aims at improving the balancing of awaiting measuring article atress.
A pressure applying structure for applying a test pressure to an object to be tested, comprising:
the base is provided with an upward bearing surface for placing the object to be detected, and the bearing surface is horizontally arranged;
the upper plate is positioned above the base and is parallel to the bearing surface, and the upper plate is provided with a pressure bearing surface for bearing the test pressure;
the pressing and pasting block is arranged on the upper plate, is opposite to the bearing surface and is provided with a propping surface which is propped against the object to be detected, and the ratio of the area of the propping surface to the area of the pressed surface is not more than 1/10;
the guide structure comprises a plurality of guide groups, each guide group comprises a first guide piece arranged on the base and a second guide piece arranged on the upper plate and in sliding connection with the first guide piece, and the second guide piece is used for guiding the first guide piece to move up and down.
Furthermore, the number of the guide groups is four, and the guide groups are sequentially connected on the horizontal projection to form a rectangle with the center of the figure positioned on the pressing block.
Furthermore, the base is a rectangular plate, and the number of the first guide pieces is four and is correspondingly arranged at four corners of the base.
Furthermore, the upper plate is rectangular, the pressing block is arranged at the center of the upper plate, and a position mark is arranged at a position, corresponding to the pressing block, of the upper plate, which is away from the surface of the pressing block.
Further, the first guide piece is a guide post, and the second guide piece is a sleeve sleeved with the guide post.
Furthermore, the base is provided with a bearing part for placing the object to be tested, and the bearing part is arranged on the bearing part.
Further, the pressure applying structure further comprises a pressure sensor arranged on the bearing member.
Furthermore, the size of the abutting surface of the pressing block and the object to be detected is 1 x 1 cm.
Further, the pressing structure further comprises a plurality of supporting legs connected with the base and used for lifting the base.
A drift test device comprises the pressure structure.
The utility model provides a structure of exerting pressure, upper plate have great pressure face, and be difficult to produce the deflection. The contact surface of the pressing block is small, so that the required pressure condition can be obtained under the condition of not increasing the pressure. Therefore, the utility model provides a structure of exerting pressure can improve the equilibrium of atress when guaranteeing that the article that awaits measuring receives the pressure of design, and simple structure is favorable to reduction in production cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a pressing structure according to a first embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
40 | |
| 20 | |
41 | |
| 30 | |
42 | |
| 50 | |
||
| 60 | Supporting foot |
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
It should be noted that the terms of left, right, upper and lower directions in the embodiments of the present invention are only relative concepts or are referred to the normal use state of the product, and should not be considered as limiting.
Example one
Referring to fig. 1, the present embodiment provides a pressure applying structure for applying a test pressure to an object to be tested.
The structure of exerting pressure includes:
a base 10 having an upward bearing surface for placing an object to be tested, the bearing surface being disposed horizontally;
the upper plate 20 is positioned above the base 10 and is arranged parallel to the bearing surface, and the upper plate 20 is provided with a pressure bearing surface for bearing test pressure;
the pressing block 30 is arranged on the upper plate 20, is opposite to the bearing surface and is provided with a pressing surface which is pressed against the object to be detected, and the ratio of the area of the pressing surface to the area of the pressed surface is not more than 1/10;
the guide structure 40 includes a plurality of guide groups, each guide group includes a first guide 41 disposed on the base 10 and a second guide 42 disposed on the upper plate 20 and slidably connected to the first guide 41, and the second guide 42 is used for guiding the first guide 41 to move up and down.
The object that awaits measuring is arranged in between base 10 and the pressure piece 30, and upper plate 20 upper surface is for surveying the working face of pressure testing, and upper plate 20 pressurized and transmit this test pressure to pressure piece 30 and the object that awaits measuring in order downwards, and during the pressurized, second guide 42 can move down relatively first guide 41 to can not press down to upper plate 20 and cause the hindrance. Alternatively, the guide structure 40 does not support the upper plate 20, but only acts as a stop.
The object on which the test pressure is directly applied is the upper plate 20, and the upper plate 20 has a large pressure receiving surface and is not easily deflected. The contact surface of the pressure pad 30 is small, and a desired pressure condition can be obtained without increasing the pressure. Therefore, the pressure applying structure provided by the embodiment can improve the stress balance while ensuring that the object to be tested is subjected to the designed pressure, has a simple structure, and is beneficial to reducing the production cost.
In this embodiment, the ratio of the area of the abutting surface to the area of the pressure receiving surface is not greater than 1/10. Preferably, the ratio of the area of the pressure receiving surface to the area of the abutment surface is between 25 and 100.
Preferably, the size of the contact surface between the pressing block 30 and the object to be measured is 1 x 1cm2. Under the arrangement, the pressure applied on the object to be measured is the unit pressure, and the conversion and the measurement are convenient.
The size of the pressure receiving surface of the upper plate 20 can be set by those skilled in the art according to actual needs. Preferably, the pressure receiving surface is rectangular and has a size that is an integer ratio of the size of the contact surface of the pressure pad 30. Preferably, the compression surface is 5 x 5cm2、 6*6cm2、8*8cm2、10*10cm2. Of course, the art is replete withThe person can also set the pressure surface to 5 x 8cm2、 6*8cm2、8*10cm2And the like.
In this embodiment, the pressing block 30 includes a trapezoid shape formed by two rectangular blocks arranged up and down, the horizontal size of the rectangular block located above is larger than that of the rectangular block located below, and the abutting surface is provided on the rectangular block located below. The design of the pressure sticking block 30 is trapezoidal, which is beneficial to the transition of the testing pressure.
In this embodiment, the upper plate 20 is rectangular, the pressing block 30 is disposed at the center of the upper plate 20, and a position mark is disposed at a position of the upper plate 20 opposite to the surface of the pressing block 30 and corresponding to the pressing block 30. That is, a position index is provided at the center of the upper surface of the upper plate 20. The setting that this position was marked can guide test pressure to the effect of this position mark department to effectively reduce the condition of testing the skew of pressure effect point of action.
Referring to fig. 1, the base 10 is provided with a supporting member 50 for placing an object to be tested, and the supporting surface is provided on the supporting member 50. The arrangement of the bearing part 50 provides position guidance for the placement of the object to be measured, and in addition, facilitates the assembly of the sensor and the observation and analysis of the measurement result.
The carrier 50 is detachably attached to the base 10. The sensor is convenient to replace and assemble. In other embodiments, the carrier 50 may also be fixed to the base 10 to ensure the stability of the connection. The deviation of the self-offset of the bearing member 50 to the test of the object to be tested is avoided.
In this embodiment, the pressing structure further includes a pressure sensor provided on the carrier 50. The pressure sensor is used for acquiring a pressure value of the bearing surface so as to monitor the experimental environment.
Referring to fig. 1, there are four guiding groups, and each guiding group is connected in sequence on the horizontal projection to form a rectangle with the center of the figure located on the laminating block 30. The rectangle is a left-right symmetrical figure, a front-back symmetrical figure and a central symmetrical figure, so that the design of the rectangle is selected, and the stress balance of the pressure sticking block 30 is ensured. It will be appreciated by those skilled in the art that while the primary function of the guide sets is to ensure that the upper plate 20 moves in an up and down direction, a horizontal plane of movement or deflection in any direction is defined. However, when the pressure to be measured deviates from the designed point of action, the four guide sets resist the deflection of the upper plate 20 to ensure the horizontal state of the upper plate 20 and thus the balanced force of the contact surface of the plunger 30.
In the illustrated embodiment, the base 10 is a rectangular plate, and the first guide members 41 are four and are correspondingly disposed at four corners of the base 10. The distance of the guide member from the center point is appropriately increased to facilitate securing the horizontal state of the upper plate 20.
In this embodiment, the first guide 41 is a guide pillar, and the second guide 42 is a sleeve sleeved with the guide pillar. Compared with the design of the guide post and the through hole, the guide post and the sleeve have larger nesting area, so that the guide post is favorable for being in a state of extending up and down without deflection.
Referring to fig. 1, the pressing structure further includes a plurality of supporting legs 60 connected to the base 10 for raising the base 10. Lifting the base 10 off the ground is beneficial to reducing the influence of the ground flatness and the ground vibration on the base 10. Preferably, the supporting feet 60 are height-adjustable, and the levelness of the bearing surface can be adjusted and ensured by adjusting the height of each supporting foot 60.
In the illustrated structure, there are four supporting feet 60, and those skilled in the art may set the number of the supporting feet 60 to six, eight, etc. according to actual needs. The person skilled in the art can set the position of the supporting foot 60 according to the actual requirement, as long as the supporting surface of the base 10 is horizontally set.
In this embodiment, the base 10, the upper plate 20 and the pressing block 30 are made of metal material to ensure the structural rigidity requirement. Preferably, the pressing block 30 is made of cast iron, and has sufficient hardness and pressure resistance.
Example two
The present embodiment provides a drift test apparatus, which includes a pressure structure, and please refer to the first embodiment for the specific structure of the pressure structure. Since the drift test device of this embodiment adopts all the technical solutions of the first embodiment, all the technical effects brought by the above technical solutions are also achieved, and are not described herein again.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.
Claims (10)
1. A pressure applying structure for applying a test pressure to an object to be tested, comprising:
the base (10) is provided with a bearing surface for placing the object to be detected, and the bearing surface is horizontally arranged;
the upper plate (20) is positioned above the base (10) and is arranged in parallel with the bearing surface, and the upper plate (20) is provided with a pressure bearing surface bearing the test pressure;
the pressing and pasting block (30) is arranged on the upper plate (20), is opposite to the bearing surface and is provided with a propping and pasting surface which is propped against the object to be tested, and the ratio of the area of the propping and pasting surface to the area of the pressed surface is not more than 1/10;
and the guide structure (40) comprises at least one guide group, each guide support group comprises a first guide piece (41) arranged on the base (10) and a second guide piece (42) arranged on the upper plate (20) and in sliding connection with the first guide piece (41), and the second guide piece (42) is used for guiding the first guide piece (41) to move up and down.
2. The pressing structure according to claim 1, wherein said guide groups are four in number, and each of said guide groups is sequentially connected in a horizontal projection to have a rectangular shape with a center of the figure positioned at said pressing block (30).
3. The pressing structure according to claim 1, wherein said base (10) is a rectangular plate, and said first guide members (41) are four in number and are provided at four corners of said base correspondingly.
4. The structure of claim 1, wherein the upper plate (20) is rectangular, the pressing block (30) is disposed at a central position of the upper plate (20), and a position mark is disposed at a position of the upper plate (20) opposite to a surface of the pressing block (30) and corresponding to the pressing block (30).
5. The pressing structure according to claim 1, wherein said first guide member (41) is a guide post, and said second guide member (42) is a sleeve fitted around said guide post.
6. The pressing structure according to claim 1, wherein the base (10) is provided with a bearing member (50) for placing the object to be tested, and the bearing surface is provided on the bearing member (50).
7. The pressure applying structure according to claim 6, further comprising a pressure sensor provided to the carrier (50).
8. The structure of any one of claims 1 to 7, wherein the size of the contact surface between the pressing block (30) and the object to be tested is 1 x 1cm2。
9. The pressing structure of claim 8, further comprising a plurality of support feet (60) connected to said base (10) for raising said base (10).
10. A drift test apparatus comprising a pressure applying structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922493986.1U CN211374023U (en) | 2019-12-30 | 2019-12-30 | Pressure applying structure and drift testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922493986.1U CN211374023U (en) | 2019-12-30 | 2019-12-30 | Pressure applying structure and drift testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211374023U true CN211374023U (en) | 2020-08-28 |
Family
ID=72150490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922493986.1U Active CN211374023U (en) | 2019-12-30 | 2019-12-30 | Pressure applying structure and drift testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211374023U (en) |
-
2019
- 2019-12-30 CN CN201922493986.1U patent/CN211374023U/en active Active
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