CN209945884U - RPC apron test detection device - Google Patents
RPC apron test detection device Download PDFInfo
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- CN209945884U CN209945884U CN201920256713.2U CN201920256713U CN209945884U CN 209945884 U CN209945884 U CN 209945884U CN 201920256713 U CN201920256713 U CN 201920256713U CN 209945884 U CN209945884 U CN 209945884U
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Abstract
The utility model discloses a RPC apron test detection device relates to and detects technical field. The utility model comprises a base, a jack, a slide bar, a beam and a pressing plate; a first upright column, a second upright column, a fourth upright column and a third upright column are vertically arranged on the base; a bearing plate is arranged among the first upright post, the second upright post, the fourth upright post and the third upright post; the bearing plate is parallel to the base; an experimental through hole is formed in the center of the bearing plate; the jacks are vertically arranged on the base, and the number of the cross beams is two; one end of a cross beam is fixedly connected with one end of the first upright column far away from the base, and the other end of the cross beam is fixedly connected with one end of the fourth upright column far away from the base; one end of the other cross beam is fixedly connected with one end of the second upright column far away from the base, and the other end of the other cross beam is fixedly connected with one end of the third upright column far away from the base; a second graduated scale is arranged on the cross beam; the zero scale line of the second scale is located at the center of the cross beam. The utility model discloses be convenient for detect the fracture load of RPC apron.
Description
Technical Field
The utility model belongs to the technical field of detection device, especially, relate to an RPC apron test detection device.
Background
Since the 90 s of the last century, Reactive Powder Concrete (RPC) has been published, its superior properties overcome the disadvantages of low strength, high brittleness and poor durability of the traditional Concrete, and it has rapidly become the research focus of scholars at home and abroad and is gradually applied to engineering construction. In 2009 and 3 months, the Ministry of railways in China has decided to use RPC to replace common concrete to manufacture the cover plates of the cable grooves of the roadbed bridges and the footpath plates of the sidewalks in the construction of all passenger dedicated lines, thereby realizing the first large-scale application of the RPC cover plates all over the world.
The test detection work has great influence on the engineering quality or the structural performance, and the test detection not only can strictly control the quality of the raw materials for engineering, but also has important significance in accelerating the engineering construction progress and improving the engineering quality. For the RPC cover plate, although the production process is mature, whether the crack resistance and the load-bearing capacity of the finished product are qualified or not needs to be tested and determined. In the current standard of China, the lowest limit value of the crack resistance and bearing capacity of the cover plate is strictly regulated, specific requirements are also provided for the detection method of the crack resistance and the bearing capacity of the cover plate, but no specific description is provided for equipment for test detection, so that inconvenience is brought to the test detection work of the RPC cover plate, and the work efficiency is greatly reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a RPC apron test detection device, it is inconvenient because of there being not concrete check out test detection work that leads to the RPC apron to have solved to mention among the background art, greatly reduced workman contrast apron crack resistance and the problem of the efficiency of bearing capacity's detection.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
the utility model provides a RPC cover plate test detection device, which comprises a base, a jack, a slide bar and a cross beam;
the base is rectangular; a first upright column, a second upright column, a fourth upright column and a third upright column are vertically arranged on the base;
a bearing plate is arranged among the first upright post, the second upright post, the fourth upright post and the third upright post; the bearing plate is parallel to the base; an experiment through hole is formed in the center of the bearing plate;
the jack is vertically arranged on the base and is opposite to the experiment through hole; one end of the jack, which is far away from the base, is provided with a pressure sensor; the pressure sensor is used for detecting the pressure between the jack and the RPC cover plate to be detected;
the number of the sliding rods is two; one end of the sliding rod is fixedly connected with one end of the first upright column far away from the base, and the other end of the sliding rod is fixedly connected with one end of the second upright column far away from the base; one end of the other sliding rod is fixedly connected with one end of the fourth upright column far away from the base, and the other end of the other sliding rod is fixedly connected with one end of the third upright column far away from the base; the two sliding rods are parallel to each other; the sliding rod is positioned above the bearing plate and is parallel to the bearing plate; a first graduated scale is arranged on the sliding rod, and a zero graduation line of the first graduated scale is positioned at the center of the sliding rod; the sliding rod is also provided with two pressing plates; the pressing plate is connected with the sliding rod in a sliding mode, and the pressing plate is perpendicular to the sliding rod;
the number of the cross beams is two; one end of the cross beam is fixedly connected with one end of the first upright column far away from the base, and the other end of the cross beam is fixedly connected with one end of the fourth upright column far away from the base; one end of the other cross beam is fixedly connected with one end of the second upright column far away from the base, and the other end of the other cross beam is fixedly connected with one end of the third upright column far away from the base; a second graduated scale is arranged on the cross beam; the zero scale mark of the second scale is positioned at the center of the cross beam;
the beam is connected with the pressure plate through a telescopic mechanism.
Preferably, the upper surface of the base is provided with a mounting groove; the bottom of the jack is slidably arranged in the mounting groove; a first positioning slide block and a second positioning slide block are further arranged in the mounting groove; the first positioning slide block and the second positioning slide block are respectively positioned at two sides of the jack; one side of the first positioning sliding block, which is far away from the jack, is fixedly connected with the inner side wall of the mounting groove through a spring; one side of the second positioning sliding block, which is far away from the jack, is fixedly connected with the side wall of the mounting groove through an adjusting bolt.
Preferably, the bearing plate is also provided with a scissor type lifting mechanism; the two shear type lifting mechanisms are respectively positioned at two sides of the experiment through hole; and a supporting plate is arranged at one end of the scissor type lifting mechanism far away from the bearing plate.
Preferably, the bearing plate is provided with two mounting holes; the two mounting holes are respectively positioned at two sides of the experiment through hole; the two shear type lifting mechanisms are respectively arranged in the mounting holes.
Preferably, the telescopic mechanism is a hydraulic cylinder.
Preferably, one side of the pressure plate, which is far away from the other pressure plate, is provided with a positioning plate; the positioning plate is positioned at the bottom of the pressure plate; the upper edge of the positioning plate is rotatably connected with the pressure plate; the side surfaces of the positioning plates are connected with the pressing plate through snap fasteners.
Preferably, the positioning plate is further provided with a retaining ring, and the pressing plate is provided with a hook matched with the retaining ring.
Preferably, the bottom of the base is provided with a roller; and the roller is provided with a wheel lock matched with the roller.
The utility model also provides an RPC cover plate test detection device, which comprises a base, a first upright post, a second upright post, a fourth upright post, a third upright post, a bearing plate, a first pressure rod and a second pressure rod;
the first upright post, the second upright post, the fourth upright post and the third upright post are vertically arranged and mounted on the upper surface of the base; the bearing plate is a rectangular plate, the bearing plate is fixedly connected with the first upright post, the second upright post, the fourth upright post and the third upright post respectively, the bearing plate is positioned above the base, and the bearing plate is parallel to the upper surface of the base;
one end of the first pressure lever is fixedly connected with the first upright post, and the other end of the first pressure lever is fixedly connected with the third upright post; one end of the second pressure lever is fixedly connected with the second upright post, and the other end of the second pressure lever is connected with the third upright post; the first pressure lever and the second pressure lever are both positioned on one side of the bearing plate, which is far away from the base;
the first pressure lever and the second pressure lever are arranged in parallel, and the distance between the first pressure lever and the second pressure lever is smaller than the length of the RPC cover plate to be detected; the first pressure rod and the second pressure rod are arranged to be tightly pressed at two ends of the upper side of the RPC cover plate to be detected;
the first upright post is provided with a first guide structure and a second guide structure, and the second upright post is provided with a second guide structure; a third guide structure is arranged on the second upright post, and a fourth guide structure is arranged on the fourth upright post; a fifth guide structure and a sixth guide structure are arranged on the third upright; the first guide structure and the fifth guide structure are arranged oppositely, the third guide structure and the fourth guide structure are arranged oppositely, and the first guide structure, the third guide structure, the fourth guide structure and the fifth guide structure are matched with each other to realize the adjustment of the RPC cover plate to be measured in the width direction of the RPC cover plate;
the second guide structure faces the second upright, and the sixth guide structure faces the fourth upright; the second guide structure and the sixth guide structure are arranged to be used for adjusting the position of the RPC cover plate to be measured in the length direction of the RPC cover plate;
a first gap is formed between the lower part of the second guide structure and the bearing plate, and a second gap is formed between the lower part of the sixth guide structure and the bearing plate; the first notch and the second notch are arranged to be used for inserting an RPC cover plate to be detected;
the bearing plate is provided with an experiment through hole, and the experiment through hole is positioned at the bottom of the bearing plate; a jack is arranged on the base, and a top rod of the jack is provided with a pressure sensor; and the ejector rod of the jack is arranged to penetrate through the experiment through hole so that the ejector rod of the jack is tightly propped against the center of the RPC cover plate to be detected.
Preferably, the bearing plate is also provided with a scissor type lifting mechanism; the two shear type lifting mechanisms are respectively positioned at two sides of the experiment through hole; and a supporting plate is arranged at one end of the scissor type lifting mechanism far away from the bearing plate.
The utility model discloses following beneficial effect has:
the utility model discloses completion that can be quick is to RPC apron crack resistance and bearing capacity's detection, improves the detection efficiency of RPC apron, compensaties not have the blank of specific RPC apron crack resistance and bearing capacity check out test set in market.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced 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 the overall structure of embodiment 1 of the present invention;
fig. 2 is an axonometric view of embodiment 1 of the present invention when the jack is not assembled;
fig. 3 is an isometric view of a scissor lift mechanism according to embodiment 1 of the present invention;
fig. 4 is a plan view of embodiment 1 of the present invention;
fig. 5 is an axonometric view of embodiment 2 of the present invention;
fig. 6 is an isometric view of embodiment 2 of the present invention from a second perspective;
fig. 7 is an axonometric view of embodiment 2 of the present invention at a third viewing angle.
In the drawings, the components represented by the respective reference numerals are listed below:
1-a base, 2-a jack, 3-a slide bar, 4-a cross beam, 5-a first upright post, 6-a second upright post, 7-a fourth upright post, 8-a third upright post, 9-a bearing plate, 901-an experimental through hole, 10-a first graduated scale, 11-a pressing plate, 12-a second graduated scale, 13-a telescopic mechanism, 101-a mounting groove, 14-a first positioning slide block, 15-a second positioning slide block, 16-a spring, 17-an adjusting bolt, 18-a scissor lifting mechanism, 19-a supporting plate, 902-a mounting hole, 20-a positioning plate, 21-a spring buckle, 22-a retaining ring, 23-a hook, 24-a roller, 25-a disc, 26-the first V-shaped opening, 27-the second V-shaped opening, 28-first press rod, 29-second press rod, 30-first guide structure, 31-second guide structure, 32-third guide structure, 33-fourth guide structure, 34-fifth guide structure, 35-sixth guide structure.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "upper surface", "one end", "the other end", "above", "vertical", "both sides", "inner", and the like indicate positional or positional relationships, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Example 1
Referring to fig. 1-4, the utility model discloses a RPC cover plate test detection device, including base 1, jack 2, slide bar 3 and crossbeam 4.
The base 1 is rectangular. A first upright post 5, a second upright post 6, a fourth upright post 8 and a third upright post 7 are vertically arranged on the base 1. Specifically, first stand 5, second stand 6, fourth stand 8 and third stand 7 set up perpendicularly on four angles of base, and first stand 5, second stand 6, fourth stand 8 and third stand 7 are located on the upper surface of base 1. It is understood by those skilled in the art that the base 1 may also be configured in a non-rectangular structure, and the first upright 5, the second upright 6, the fourth upright 8 and the third upright 7 are disposed on the upper surface of the base 1, and four connection points formed by the first upright 5, the second upright 6, the fourth upright 8 and the third upright 7 and the base 1 are located at four vertices of a rectangle. The first upright post 5, the second upright post 6, the fourth upright post 8 and the third upright post 7 can be welded, bolted or integrally formed with the base 1.
And a bearing plate 9 is arranged among the first upright post 5, the second upright post 6, the fourth upright post 8 and the third upright post 7. The bearing plate 9 is parallel to the base 1, and specifically, the bearing plate 9 is parallel to the upper surface of the base 1. An experiment through hole 901 is formed in the center of the bearing plate 9. Specifically, the center line of the experimental through hole 901 passes through the center of a rectangle whose vertex is the connection point of the first upright post 5, the second upright post 6, the fourth upright post 8, the third upright post 7 and the base 1. The bearing plate 9 is used for supporting the RPC cover plate to be detected.
The jack 2 is vertically installed on the base 1, the jack 2 is placed on the upper surface of the base 1, the jack 2 is opposite to the experiment through hole 901, and when the device is used, a mandril of the jack 2 penetrates through the experiment through hole 901. One end of the jack 2, which is far away from the base 1, is provided with a pressure sensor; the pressure sensor is used for detecting the pressure between the jack 2 and the RPC cover plate to be detected. By controlling the jack 2, the RPC cover plate to be detected is jacked until the RPC plate reaches a certain deformation, so that the maximum stress of the RPC cover plate in the test process can be determined. Thereby achieving the purpose of detection. It can be understood by those skilled in the art that, in order to visually recognize the stress between the RPC cover plate and the jack 2, a display component for displaying the pressure sensor value needs to be externally connected, which can be realized by those skilled in the art and will not be described herein.
Specifically, the number of the slide bars 3 is two, the two slide bars 3 are arranged in parallel, and the two slide bars 3 are both parallel to the bearing platform 9. One end of one of the slide bars 3 is fixedly connected with one end of the first upright post 5 far away from the base 1, and the other end of the slide bar is fixedly connected with one end of the second upright post 6 far away from the base 1. One end of the other slide bar 3 is fixedly connected with one end of the fourth upright post 8 far away from the base 1, and the other end of the other slide bar is fixedly connected with one end of the third upright post 7 far away from the base 1; the two slide bars 3 are parallel to each other. The slide bar 3 is located above the bearing plate 9 and parallel to the bearing plate 9. The slide bar 3 is provided with a first graduated scale 10, the zero graduation line of the first graduated scale 10 is positioned at the center of the slide bar 3, and the graduation on the first graduated scale 10 is symmetrical about the graduation 0. The sliding rod 3 is further provided with two pressing plates 11, the pressing plates 11 are in sliding connection with the sliding rod 3, and the pressing plates 11 are perpendicular to the sliding rod 3. Specifically, the two pressing plates 11 are used for abutting against the RPC cover plate from above during inspection.
The number of the cross beams 4 is two. One end of the cross beam 4 is fixedly connected with one end of the first upright post 5 far away from the base 1, and the other end of the cross beam is fixedly connected with one end of the fourth upright post 8 far away from the base 1; one end of the other cross beam 4 is fixedly connected with one end of the second upright post 6 far away from the base 1, and the other end of the other cross beam is fixedly connected with one end of the third upright post 7 far away from the base 1; a second graduated scale 12 is arranged on the cross beam 4; the zero scale line of the second scale 12 is located at the centre of the cross beam 4. Specifically, the center lines of the two cross beams 4 and the center lines of the two slide bars 3 may be located in the same plane, that is, a rectangular frame is formed between the two cross beams 4 and the two slide bars 3.
The beam 4 is connected with the pressure plate 11 through a telescopic mechanism 13. Specifically, the beam 4 is connected to a pressing plate 11 adjacent to the beam 4 by a telescopic mechanism 13. That is, the positions of the two pressure plates 11 and the distance between the two pressure plates 11 can be adjusted by controlling the two stretching mechanisms 13. While the telescoping mechanism 13 is conventional in the art, those skilled in the art can select, set and assemble the mechanism, for example, it can be realized by a hydraulic cylinder, a ball screw, a rack and pinion, etc.
During the specific use, place jack 2 on the upper surface of base 1, place the RPC apron that awaits measuring on loading board 9. And adjusting the position of the jack 2 to enable the central line of the ejector rod of the jack 2 to coincide with the central line of the experiment through hole 901, wherein in the concrete implementation, the distance between the ejector rod of the jack 2 and the inner wall of the experiment through hole 901 is uniform by observation. The position of the RPC cover plate is adjusted to ensure that the RPC cover plate to be detected does not interfere with the first upright post 5, the second upright post 6, the fourth upright post 8 or the third upright post 7 in the detection process. That is, by adjusting the position of the RPC cover plate, the jack 2 can be aligned substantially at the middle of the RPC cover plate.
Through telescopic machanism 13, adjust two the position of clamp plate 11 for distance between two clamp plates 11 (here means the distance between the lateral surface of two clamp plates 11, and a clamp plate 11 keeps away from the distance of a side of another clamp plate 11 to a side that another clamp plate 11 kept away from this clamp plate 11 to another clamp plate 11) is equal with the length of RPC apron basically, also can slightly be greater than the length of RPC apron, nevertheless guarantees that two clamp plates 11 all can support at the both ends of the last side of RPC apron.
And continuously controlling the jack 2 to jack up, so that two ends of the RPC cover plate are tightly propped against the pressing plate 12. And continuously controlling the jacking of the jack 2, thereby realizing the detection of the RPC stress.
As a preferable mode, the upper surface of the base 1 is provided with a mounting groove 101, specifically, the mounting groove 101 is a rectangular groove, and a center line of the rectangular groove and a center line of the experiment through hole 901 are located on the same straight line. The bottom of the jack 2 is slidably arranged in the mounting groove 101; a first positioning slide block 14 and a second positioning slide block 15 are further arranged in the mounting groove 101, and the first positioning slide block 14 and the second positioning slide block 15 are respectively located on two sides of the jack 2. One side of the first positioning sliding block 14, which is far away from the jack 2, is fixedly connected with the inner side wall of the mounting groove 101 through a spring 16; one side of the second positioning sliding block 15, which is far away from the jack 2, is fixedly connected with the side wall of the mounting groove 101 through an adjusting bolt 17. Therefore, the position of the jack 2 can be adjusted through the adjusting bolt 17, so that the center line of the mandril of the jack 2 can be conveniently adjusted to the position coincident with the center line of the experiment through hole 901.
As an implementation manner, a disc 25 is arranged at the bottom of the jack 2, and a central line of a top rod of the jack 2 coincides with a central line of the disc 25, and the diameter of the disc 25 is larger than the outer diameter of the jack 2. The first positioning slider 14 has two first sliding surfaces which are parallel to each other and slidably connected to two parallel inner walls of the mounting groove 101. A first inclined surface and a second inclined surface are arranged on one side, close to the jack 2, of the first positioning slide block 14, the first inclined surface and the second inclined surface are matched to form a first V-shaped opening 26, and the distance from an angular bisector of the first V-shaped opening 26 to the two first sliding surfaces is equal; the second positioning slider 15 has two second sliding surfaces which are parallel to each other and slidably connected to two parallel inner walls of the mounting groove 101. The second positioning sliding block 15 is close to a third inclined surface and a fourth inclined surface on one side of the jack 2, the third inclined surface and the fourth inclined surface are matched to form a second V-shaped opening 27, and the distance from an angular bisector of the second V-shaped opening 27 to the two second sliding surfaces is equal. The first V-shaped opening 26 is opposite to the second V-shaped opening 27, and the first slope, the second slope, the third slope and the fourth slope are all tangent to the disc 25. Specifically, the number of the springs 16 is two, the number of the adjusting bolts 17 is one, a part of an angle line of the first V-shaped opening 26 and an angle bisector of the second V-shaped opening 27 are located on the same straight line, and a center line of the adjusting bolt 17 and the angle bisector of the first V-shaped opening 26 are located on the same straight line. The angle of the first V-shaped opening 26 and the angle of the second V-shaped opening 27 are both 100-120 degrees.
Preferably, a scissor type lifting mechanism 18 is further arranged on the bearing plate 9; the number of the scissor type lifting mechanisms 18 is two, and the two scissor type lifting mechanisms 18 are respectively positioned at two sides of the experiment through hole 901; the scissor lift 18 is provided with a support plate 19 at its end remote from the carrier plate 9. Specifically, the scissor lift mechanism 18 is prior art, and the specific structure thereof is not described herein, and those skilled in the art will understand that the scissor lift mechanism 18 requires power for lifting, and is typically a hydraulic cylinder, and those skilled in the art also have the ability to provide a hydraulic system for the scissor lift mechanism. Two scissor lift mechanisms 18 are used to lift the RPC cover plate on the carrier plate 9 to the bottom near the press plate 11, so that a smooth lift of the RPC cover plate can be ensured.
Optionally, the bearing plate 9 is provided with two mounting holes 902; the two mounting holes 902 are respectively positioned at two sides of the experiment through hole 901; the two scissor lift mechanisms 18 are respectively mounted in the mounting holes 902. Under non-lifting state, cut formula lifting mechanism 18 and can contract in the mounting hole 902, specifically, mounting hole 902 can be recess or counter bore, so, under non-lifting state, cut formula lifting mechanism 18 and contract in corresponding mounting hole 902, be convenient for place the RPC apron on loading board 9, so, can prevent to take place to interfere with cutting formula lifting mechanism 18 in the in-process that the RPC apron was placed.
Optionally, a positioning plate 20 is installed on one side of the pressure plate 11 away from the other pressure plate 11; the positioning plate 20 is positioned at the bottom of the pressure plate 11; the upper edge of the positioning plate 20 is rotatably connected with the pressing plate 11; the side surfaces of the positioning plate 20 are connected with the pressure plate 11 through snap fasteners 21. The positioning plate 20 has two states, in the first state, the positioning plate 20 is turned to the side of the corresponding pressure plate 11 far away from the other positioning plate 20; in the second state, the positioning plate 20 is turned over to the vertical state, and at this time, the bottom surface of the positioning plate 20 protrudes from the lower surface of the pressing plate 11. During specific implementation, it shifts up to wait to detect the RPC apron through jack 2 promotion, it will contact clamp plate 11 soon to wait to detect the RPC apron to move, the adjustment is waited to detect the position of RPC apron on the width direction, so that the scale on the second scale 12 that the long limit of the RPC apron that waits to detect corresponds equals to the central line of zero scale on the second scale 12, then promote clamp plate 11 through telescopic machanism 13 and move to waiting to detect the RPC apron, when locating plate 20 exposes and support the tip that leans on at the RPC apron that waits to detect with the side of clamp plate 11 lower part, clamp plate 11 is located just directly over waiting to detect the both ends of RPC apron this moment, when jack 2 continues upwards to promote to detect the RPC that waits to detect, two clamp plates 11 press just at the both ends.
Furthermore, a retaining ring 22 is further disposed on the positioning plate 20, and a hook 23 matched with the retaining ring 22 is disposed on the pressing plate 11. So, be convenient for when clamp plate 11 supports when waiting to detect the both ends of RPC, turn over the locating plate 20 and roll over and pack up, avoid producing the friction influence between locating plate 20 and the RPC that waits to detect and detect the precision.
Optionally, the bottom of the base 1 is provided with a roller 24; and a wheel lock matched with the roller 24 is arranged on the roller 24. So, be convenient for the utility model discloses a remove and the locking, specifically, the technical personnel in the field can select corresponding wheel lock or arrestment mechanism from prior art as required, do not describe herein repeatedly.
Example 2
Referring to fig. 5-7, the utility model also provides a RPC apron test detection device, wherein, including base 1, first stand 5, second stand 6, fourth stand 8, third stand 7, loading board 9, first depression bar 28 and second depression bar 29.
The first upright post 5, the second upright post 6, the fourth upright post 8 and the third upright post 7 are vertically arranged and mounted on the upper surface of the base 1; the bearing plate 9 is a rectangular plate, the bearing plate 9 is fixedly connected with the first upright post 5, the second upright post 6, the fourth upright post 8 and the third upright post 7 respectively, the bearing plate 9 is located above the base 1, and the bearing plate 9 is parallel to the upper surface of the base 1.
One end of the first pressure lever 28 is fixedly connected with the first upright post 5, and the other end is fixedly connected with the third upright post 7; one end of the second pressure lever 29 is fixedly connected with the second upright post 6, and the other end is connected with the fourth upright post 8; the first pressure lever 28 and the second pressure lever 29 are both located on one side of the bearing plate 9 away from the base 1.
The first upright post 5 is provided with a first guide structure 30 and a second guide structure 31, and the second upright post 6 is provided with a second guide structure 31. A third guide structure 32 is arranged on the second upright post 6, and a fourth guide structure 33 is arranged on the fourth upright post 8; a fifth guide structure 34 and a sixth guide structure 35 are arranged on the third upright post 7; first guide structure 30 with fifth guide structure 34 sets up relatively, third guide structure 32 with fourth guide structure 33 sets up relatively, first guide structure 30 third guide structure 32 fourth guide structure 33 with fifth guide structure 34 mutually supports to the realization is to the regulation of the RPC apron that awaits measuring on its width direction. In specific implementation, as a mode that can be realized, the first guide structure 30, the third guide structure 32, the fourth guide structure 33 and the fifth guide structure 34 all have an inclined plane, and the distance between the inclined plane of the first guide structure 30 and the inclined plane of the fifth guide structure 34 is gradually reduced along the direction from bottom to top. The distance between the inclined surface of the third guiding structure 32 and the inclined surface of the fourth guiding structure 33 gradually decreases along the direction from bottom to top. So, can two RPC apron both ends adjust respectively, so, can make jack 2's ejector pin top in RPC apron width direction's center department.
The second guiding structure 31 faces the second upright 6 and the sixth guiding structure 35 faces the fourth upright 8. The second guiding structure 31 and the sixth guiding structure 35 are arranged to adjust the position of the RPC cover plate to be tested in the length direction thereof. So, can guarantee through the regulation on length direction for jack 2's ejector pin top is in RPC apron length direction's center department. Further, for preventing to take place to interfere at RPC apron in the test procedure, be close to at first guide structure 30, second guide structure 31, fifth guide structure 34 and sixth guide structure the one end of first depression bar 28 all is equipped with the first groove of dodging, the first size of dodging the groove in vertical direction slightly is greater than the thickness of RPC apron. Be close to at third guide structure 32 and fourth guide structure 33 the one end of second depression bar 29 all is equipped with the second and dodges the groove, the second dodges the size in the vertical direction in groove and slightly is greater than the thickness of RPC apron board. In order to facilitate placing the RPC cover plate on the carrier plate 9, the carrier plate 9 protrudes from the first and third columns 5 and 7.
A first gap is arranged between the lower part of the second guide structure 31 and the bearing plate 9, and a second gap is arranged between the lower part of the sixth guide structure 35 and the bearing plate 9; the first notch and the second notch are arranged to be used for inserting an RPC cover plate to be detected. So, through setting up the breach, can be convenient for place the RPC apron on loading board 9, specifically, first breach at the ascending size of vertical side with the second breach at the ascending size of vertical side all is greater than the thickness of RPC apron.
An experiment through hole 901 is formed in the bearing plate 9, and the experiment through hole 901 is located at the bottom of the bearing plate 9; a jack 2 is arranged on the base 1, and a top rod of the jack 2 is provided with a pressure sensor; the ejector rod of the jack 2 is arranged to penetrate through the experiment through hole 901, so that the ejector rod of the jack 2 is tightly propped against the center of the RPC cover plate to be detected.
It can be understood by those skilled in the art that, in the setting and adjusting structure of the jack 2 in embodiment 1 of this specification and the application thereof in this embodiment, the scissor lift mechanism 18 and the installation structure thereof in embodiment 1 of this specification can also be applied in this embodiment, and are not described herein again.
Example 3
The utility model also provides a RPC apron test detection method, including following step:
s1, horizontally arranging the RPC cover plate with the front face facing downwards;
s2, arranging a pressure lever above the RPC cover plate so that the pressure lever can abut against the edge of the RPC cover plate from two ends of the RPC cover plate in the length direction;
s3, applying a vertical upward jacking force below the RPC cover plate by using a jack, and enabling the action point of the jacking force to be located at the center of the RPC cover plate;
s4, increasing the jacking force at a certain loading rate, and detecting the pressure between the jack and the RPC cover plate in real time; and keeping for 3 minutes when the jacking force respectively reaches 0, 0.5, 1.0, 1.2 and 2.0 times of equivalent concentrated load;
and S5, recording the jacking force as a cracking load when the first crack appears on the RPC cover plate.
Through the steps, the cracking load of the RPC cover plate can be conveniently detected, and meanwhile, the stress conditions of the elastic stage, the yield stage and the damage stage of the RPC cover plate can be measured according to requirements.
The damage process of the RPC cover plate in the test detection can be roughly divided into three stages of 'elasticity-yield-damage', and each stage shows different damage rules.
And (3) an elastic stage: the RPC cover plate will experience an elastic phase with a linear relationship between load and strain for a period of time after the RPC cover plate begins to be stressed, and in the elastic phase, the strain increases in a linear proportion along with the increase of the load. When the limit elastic strain is reached, a first macroscopic crack appears at the bottom of the RPC cover plate, and the load at this time is called the cracking load.
A yield stage: when cracks appear at the bottom of the RPC cover plate, the damage process of the RPC cover plate immediately enters a yield stage along with the continuous increase of the load. In this phase, the rate of increase in strain is much greater than the rate of increase in load, not the linear relationship of the elastic phase. Due to the existence of the steel fibers, the yield stage of the RPC cover plate is obviously different from the brittle failure process of common concrete, and is very similar to that of steel, so that the excellent toughness of the RPC cover plate is reflected. When the load is increased to the limit load, the RPC cover plate loses the bearing capacity, and the yield stage is finished.
A destruction stage: in the damage stage, the tail end of the steel fiber is separated from the RPC cover plate, and the RPC cover plate is cracked seriously so that the RPC cover plate cannot work normally, which is shown in the way that the RPC cover plate is cracked continuously and the load is not increased.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. A test detection device for an RPC cover plate is characterized by comprising a base (1), a jack (2), a slide rod (3) and a cross beam (4);
the base (1) is rectangular; a first upright post (5), a second upright post (6), a fourth upright post (8) and a third upright post (7) are vertically arranged on the base (1);
a bearing plate (9) is arranged among the first upright post (5), the second upright post (6), the fourth upright post (8) and the third upright post (7); the bearing plate (9) is parallel to the base (1); an experiment through hole (901) is formed in the center of the bearing plate (9);
the jack (2) is vertically arranged on the base (1), and the jack (2) is opposite to the experiment through hole (901); one end of the jack (2) far away from the base (1) is provided with a pressure sensor; the pressure sensor is used for detecting the pressure between the jack (2) and the RPC cover plate to be detected;
the number of the sliding rods (3) is two; one end of one of the slide bars (3) is fixedly connected with one end of the first upright post (5) far away from the base (1), and the other end of the slide bar is fixedly connected with one end of the second upright post (6) far away from the base (1); one end of the other sliding rod (3) is fixedly connected with one end, far away from the base (1), of the fourth upright post (8), and the other end of the other sliding rod is fixedly connected with one end, far away from the base (1), of the third upright post (7); the two sliding rods (3) are parallel to each other; the sliding rod (3) is positioned above the bearing plate (9) and is parallel to the bearing plate (9); a first graduated scale (10) is arranged on the sliding rod (3), and a zero graduation line of the first graduated scale (10) is positioned at the center of the sliding rod (3); the slide bar (3) is also provided with two pressing plates (11); the pressing plate (11) is connected with the sliding rod (3) in a sliding mode, and the pressing plate (11) is perpendicular to the sliding rod (3);
the number of the cross beams (4) is two; one end of the cross beam (4) is fixedly connected with one end of the first upright post (5) far away from the base (1), and the other end of the cross beam is fixedly connected with one end of the fourth upright post (8) far away from the base (1); one end of the other cross beam (4) is fixedly connected with one end of the second upright post (6) far away from the base (1), and the other end of the other cross beam is fixedly connected with one end of the third upright post (7) far away from the base (1); a second graduated scale (12) is arranged on the cross beam (4); the zero scale mark of the second scale (12) is positioned at the center of the cross beam (4);
the cross beam (4) is connected with the pressure plate (11) through a telescopic mechanism (13).
2. The RPC cover plate test detection device of claim 1, wherein the upper surface of the base (1) is provided with an installation groove (101); the bottom of the jack (2) is slidably arranged in the mounting groove (101); a first positioning slide block (14) and a second positioning slide block (15) are further arranged in the mounting groove (101); the first positioning slide block (14) and the second positioning slide block (15) are respectively positioned at two sides of the jack (2); one side, far away from the jack (2), of the first positioning sliding block (14) is fixedly connected with the inner side wall of the mounting groove (101) through a spring (16); one side, far away from the jack (2), of the second positioning sliding block (15) is fixedly connected with the side wall of the mounting groove (101) through an adjusting bolt (17).
3. The RPC cover plate test detection device of claim 1, wherein a scissor lift mechanism (18) is further provided on the bearing plate (9); the number of the scissor-type lifting mechanisms (18) is two, and the two scissor-type lifting mechanisms (18) are respectively positioned on two sides of the experiment through hole (901); and a supporting plate (19) is arranged at one end of the scissor type lifting mechanism (18) far away from the bearing plate (9).
4. The RPC cover plate test detection device of claim 3, wherein the bearing plate (9) is provided with two mounting holes (902); the two mounting holes (902) are respectively positioned at two sides of the experiment through hole (901); the two scissor type lifting mechanisms (18) are respectively arranged in the mounting holes (902).
5. The RPC cover plate test detection device of claim 1, wherein the telescoping mechanism (13) is a hydraulic cylinder.
6. The RPC cover plate test detection device of claim 1, wherein a positioning plate (20) is installed on one side of the pressure plate (11) far away from the other pressure plate (11); the positioning plate (20) is positioned at the bottom of the pressure plate (11); the upper edge of the positioning plate (20) is rotatably connected with the pressure plate (11); the side surfaces of the positioning plate (20) are connected with the pressure plate (11) through snap fasteners (21).
7. The RPC cover plate test detection device of claim 6, wherein a retaining ring (22) is further disposed on the positioning plate (20), and a hook (23) engaged with the retaining ring (22) is disposed on the pressure plate (11).
8. The RPC cover plate test detection device of claim 1, wherein the bottom of the base (1) is provided with rollers (24); and a wheel lock matched with the roller (24) is arranged on the roller (24).
9. A test detection device for an RPC cover plate is characterized by comprising a base (1), a first upright post (5), a second upright post (6), a fourth upright post (8), a third upright post (7), a bearing plate (9), a first compression bar (28) and a second compression bar (29);
the first upright post (5), the second upright post (6), the fourth upright post (8) and the third upright post (7) are vertically arranged and mounted on the upper surface of the base (1); the bearing plate (9) is a rectangular plate, the bearing plate (9) is fixedly connected with the first upright post (5), the second upright post (6), the fourth upright post (8) and the third upright post (7) respectively, the bearing plate (9) is positioned above the base (1), and the bearing plate (9) is parallel to the upper surface of the base (1);
one end of the first pressure lever (28) is fixedly connected with the first upright post (5), and the other end of the first pressure lever is fixedly connected with the third upright post (7); one end of the second pressure lever (29) is fixedly connected with the second upright post (6), and the other end of the second pressure lever is connected with the fourth upright post (8); the first pressure lever (28) and the second pressure lever (29) are both positioned on one side of the bearing plate (9) far away from the base (1);
the first pressure lever (28) and the second pressure lever (29) are arranged in parallel, and the distance between the first pressure lever (28) and the second pressure lever (29) is smaller than the length of the RPC cover plate to be tested; the first pressure rod (28) and the second pressure rod (29) are arranged to be pressed at two ends of the upper side of the RPC cover plate to be tested;
a first guide structure (30) and a second guide structure (31) are arranged on the first upright post (5); a third guide structure (32) is arranged on the second upright post (6), and a fourth guide structure (33) is arranged on the fourth upright post (8); a fifth guide structure (34) and a sixth guide structure (35) are arranged on the third upright post (7); the first guide structure (30) and the fifth guide structure (34) are arranged oppositely, the third guide structure (32) and the fourth guide structure (33) are arranged oppositely, and the first guide structure (30), the third guide structure (32), the fourth guide structure (33) and the fifth guide structure (34) are matched with each other to realize the adjustment of the RPC cover plate to be measured in the width direction of the RPC cover plate;
the second guide structure (31) faces the second upright (6) and the sixth guide structure (35) faces the fourth upright (8); the second guide structure (31) and the sixth guide structure (35) are arranged to adjust the position of the RPC cover plate to be measured in the length direction of the RPC cover plate;
a first gap is formed between the lower part of the second guide structure (31) and the bearing plate (9), and a second gap is formed between the lower part of the sixth guide structure (35) and the bearing plate (9); the first notch and the second notch are arranged to be used for inserting an RPC cover plate to be detected;
an experiment through hole (901) is formed in the bearing plate (9), and the experiment through hole (901) is located at the bottom of the bearing plate (9); a jack (2) is arranged on the base (1), and a top rod of the jack (2) is provided with a pressure sensor; the ejector rod of the jack (2) is arranged to penetrate through the experiment through hole (901), so that the ejector rod of the jack (2) is tightly jacked at the center of the RPC cover plate to be detected.
10. The RPC cover plate test detection device of claim 9, wherein a scissor lift mechanism (18) is further provided on the carrier plate (9); the number of the scissor-type lifting mechanisms (18) is two, and the two scissor-type lifting mechanisms (18) are respectively positioned on two sides of the experiment through hole (901); and a supporting plate (19) is arranged at one end of the scissor type lifting mechanism (18) far away from the bearing plate (9).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920256713.2U CN209945884U (en) | 2019-02-28 | 2019-02-28 | RPC apron test detection device |
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| CN201920256713.2U CN209945884U (en) | 2019-02-28 | 2019-02-28 | RPC apron test detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765114A (en) * | 2019-02-28 | 2019-05-17 | 山东广信工程试验检测集团有限公司 | A kind of RPC cover board experiment detection device and method |
| CN112097976A (en) * | 2020-08-11 | 2020-12-18 | 国家电网有限公司 | Fuse formula is experimental auxiliary device of contact clamp force for isolator |
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2019
- 2019-02-28 CN CN201920256713.2U patent/CN209945884U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109765114A (en) * | 2019-02-28 | 2019-05-17 | 山东广信工程试验检测集团有限公司 | A kind of RPC cover board experiment detection device and method |
| CN109765114B (en) * | 2019-02-28 | 2024-01-23 | 广信检测认证集团有限公司 | RPC cover plate test detection device and method |
| CN112097976A (en) * | 2020-08-11 | 2020-12-18 | 国家电网有限公司 | Fuse formula is experimental auxiliary device of contact clamp force for isolator |
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Address after: 250022 No. 20, Xinglong Village, Second Ring South Road, Jinan City, Shandong Province Patentee after: Guangxin testing and Certification Group Co., Ltd Address before: 250022 No. 20, Xinglong Village, Second Ring South Road, Jinan City, Shandong Province Patentee before: SHANDONG GUANGXIN ENGINEERING TESTING GROUP Co.,Ltd. |