CN111006937A - Pressure bearing column connecting device of pressure testing machine and using method - Google Patents
Pressure bearing column connecting device of pressure testing machine and using method Download PDFInfo
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- CN111006937A CN111006937A CN201911165090.9A CN201911165090A CN111006937A CN 111006937 A CN111006937 A CN 111006937A CN 201911165090 A CN201911165090 A CN 201911165090A CN 111006937 A CN111006937 A CN 111006937A
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- pressure
- bearing column
- testing machine
- connecting piece
- fixing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
Abstract
The invention discloses a pressure-bearing column connecting device of a compression testing machine and a using method thereof, which solve the problems of time and labor waste and poor safety caused by the increase of height by manually carrying cushion blocks in the prior art, and have the effects of enabling the test operation to be simpler and more reasonable and improving the operation efficiency. The technical scheme is as follows: the fixing device comprises a connecting piece, a fixing block and a fixing sleeve, wherein the fixing block is arranged on one side of the fixing sleeve and is attached to the surface of the fixing sleeve; two ends of the connecting piece along the vertical direction are respectively and rotatably connected with a fixed block; wherein, the connecting piece is provided with a through hole for the pressure bearing column to pass through.
Description
Technical Field
The invention relates to the field of rock test equipment, in particular to a pressure bearing column connecting device of a pressure testing machine and a using method.
Background
Uniaxial compressive strength and shear parameters of rock are basic parameters for the design and research of rock mechanical engineering, and the test can be usually completed by an electronic universal testing machine and a shear testing machine. However, in the case of hard rock such as granite, the uniaxial compressive strength of a standard sample exceeds 100MPa, and a common electronic universal tester cannot provide such a large pressure to crush the sample due to insufficient overall rigidity, so that a rock triaxial tester with higher rigidity is more required.
The conventional rock triaxial testing machine mainly performs rock triaxial compression tests and can provide axial pressure for shear tests. In a conventional triaxial test, an oil cylinder which bears high pressure inside needs to be configured, and the height of the oil cylinder is 70-90 cm. The inventors found that if the uniaxial rock test is carried out by means of a conventional triaxial rock tester, since the standard rock sample size height of the rock is only 10cm, at least the bottom cylinder needs to be raised by 60 cm. In fact, the lifting distance of the bottom oil cylinder is only 15cm at most, in this case, a steel cushion block with the height of 45cm in total needs to be manually placed on the oil cylinder pressing plate, and the cushion block is removed after the test is finished. In addition, in the shear test, as the height of the shear box is smaller, a cushion block is required to be added, so that the vertical pressure head of the triaxial testing machine provides vertical pressure for the shear box. The steel blocks are carried repeatedly, so that time and labor are wasted, and safety guarantee is not provided for manually carrying the heavy and thick steel cushion blocks.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a pressure bearing column connecting device of a pressure testing machine and a using method thereof, which have the effects of enabling the test operation to be simpler and more reasonable and improving the operation efficiency.
The invention adopts the following technical scheme:
a pressure-bearing column connecting device of a pressure testing machine comprises a connecting piece, a fixed block and a fixed sleeve, wherein the fixed block is arranged on one side of the fixed sleeve and is attached to the surface of the fixed sleeve; one end of the connecting piece is respectively and rotatably connected with the fixed block; wherein, the connecting piece is provided with a through hole for the pressure bearing column to pass through.
Furthermore, the connecting piece comprises a vertical rod, a cross rod and a connecting ring, wherein one end of the cross rod is fixed with the vertical rod, and the other end of the cross rod is fixed with the connecting ring.
Furthermore, fixed cover includes two semicircle ring types that can dismantle the connection, and two semicircle ring type symmetries install.
Furthermore, threaded holes are formed in the two ends of each semi-circular ring body along the axis direction of the semi-circular ring bodies respectively, and the two semi-circular ring bodies are connected through fastening screws.
Furthermore, the fixing block is provided with a through hole, and one side of the fixing block is provided with an arc-shaped curved surface matched with the fixing sleeve.
A use method of a pressure bearing column connecting device of a compression testing machine comprises the following steps:
horizontally assembling a fixed block to the side surface of a fixed sleeve, and installing the two assembled fixed sleeves on an upright post of a testing machine;
step (2), fastening screws on the fixing sleeves are screwed into a set length, and the two fixing sleeves are rotated left and right to enable the two fixing blocks to be aligned up and down;
step (3) assembling a connecting ring of the connecting piece with the pressure-bearing column, and assembling a vertical rod of the connecting piece with the fixed block; then the fastening screw of the fixing sleeve is screwed to the tightest position;
and (4) swinging the connecting piece to the lower part of the testing machine to enable the pressure-bearing column to be positioned above the test piece, and starting the test.
Furthermore, in the step (1), the relative positions of the fixed block and the fixed sleeve are necessarily on the same horizontal line, and the direction of the through hole of the fixed block is parallel to the axial direction of the fixed sleeve; the mounting directions of the fixing sleeves are distributed up and down along the upright post, and the distance between the two fixing sleeves is greater than the height of the vertical rod of the connecting piece during mounting.
Further, in the step (3), the pressure-bearing column vertically passes through the connecting ring of the connecting piece from top to bottom until the pressure-bearing column and the connecting ring of the connecting piece are mutually clamped.
Compared with the prior art, the invention has the beneficial effects that:
(1) the connecting device disclosed by the invention is simple in structure, effectively solves the problems of time and labor waste caused by the fact that the height of the cushion block is increased by manual carrying, enables the test operation to be simpler and more reasonable, and improves the operation efficiency;
(2) the connecting piece enables the pressure-bearing column to be effectively connected with the fixing sleeve, the fixing sleeve plays a role in supporting the connecting rod and the pressure-bearing column, and when the pressure-bearing column is used, the connecting rod is only needed to be placed below the testing machine, so that the pressure-bearing column is located above a test piece, and the load is conducted.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 2 is a front view of a connector according to a first embodiment of the present invention;
FIG. 3 is a top view of a connector according to a first embodiment of the present invention;
fig. 4 is a front view of the fixing cover according to the first embodiment of the present invention;
fig. 5 is a top view of the fixing sleeve according to the first embodiment of the present invention;
FIG. 6 is a front view of a fixing block according to a first embodiment of the present invention;
FIG. 7 is a top view of a fixing block according to a first embodiment of the present invention;
fig. 8 is a front view of a pressure bearing column according to a first embodiment of the present invention;
FIG. 9 is a top view of a pressure bearing column according to a first embodiment of the present invention;
the device comprises a connecting piece 1, a connecting piece 11, a vertical rod 12, a cross rod 13, a connecting ring 2, a fixing sleeve 21, a semicircular ring body 22, a threaded hole 3, a fixing block 31, a through hole 32, a trapezoidal groove 33, an arc-shaped curved surface 4, a bearing column 41 and a built-in threaded hole.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "up", "down", "left" and "right" in this application, if any, merely indicate correspondence with the directions of up, down, left and right of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.
The terms "mounted", "connected", "fixed", and the like in the present application should be understood broadly, and for example, the terms "mounted", "connected", and "fixed" may be fixedly connected, detachably connected, or integrated; the two components can be connected directly or indirectly through an intermediate medium, or the two components can be connected internally or in an interaction relationship, and the terms can be understood by those skilled in the art according to specific situations.
As introduced in the background art, the defects of time and labor waste and poor safety caused by the fact that the height is increased by manually carrying the cushion block exist in the prior art, and in order to solve the technical problems, the invention provides a pressure-bearing column connecting device of a pressure testing machine and a using method thereof.
The first embodiment is as follows:
the present invention is described in detail below with reference to fig. 1 to 9, and specifically, the structure is as follows:
the embodiment provides a pressure-bearing column connecting device of a pressure testing machine, which comprises a connecting piece 1, a fixed block 3, a fixed sleeve 2 and a pressure-bearing column 4, wherein an arc-shaped curved surface of the fixed block 3 is attached to the surface of the fixed sleeve 2; the connecting piece 1 rotates with a fixed block 3 respectively along the both ends of vertical direction to be connected, fixed cover 2 play the supporting role to connecting piece 1 and pressure-bearing post 4 to can guarantee the depth of parallelism of pressure-bearing post 4 and testing machine stand. The pressure-bearing column 4 is connected with the connecting piece 1, the connecting piece 1 enables the pressure-bearing column 4 to be effectively connected with the fixing sleeve 2, and the pressure-bearing column 4 can conduct the force applied by the testing machine to the test block.
As shown in fig. 1-2, the connecting member 1 includes a vertical rod 11, a cross bar 12 and a connecting ring 13, wherein one end of the cross bar 12 is fixedly connected with the vertical rod 11. The other end of the cross rod 12 is provided with a connecting ring 12, the connecting ring 12 is provided with a through hole, and the size of the through hole is matched with that of the pressure bearing column 4.
The cross bar 12 plays a role of connecting the vertical rod 11 and the connecting ring 13, and the lower surface of the cross bar 12 is an inclined surface. The vertical rod 11 penetrates through the end part of the cross rod 12 and extends to the outer side of the cross rod 12, and the extending section of the vertical rod 11 and the surface of the cross rod 12 form a step to block the fixing block 3.
As shown in fig. 5 to 6, the fixing block 3 is a rectangular parallelepiped, the fixing block 3 is provided with a through hole 31, and both ends of the through hole 31 are provided with trapezoidal grooves 32. One side of the fixing block 3 is provided with an arc-shaped curved surface 33, and the arc-shaped curved surface 33 is inwards concave (the side close to the central line of the through hole 31 is taken as the inner side) so as to be assembled with the edge arc of the fixing sleeve 2.
As shown in fig. 3-4, the fixing sleeve 2 comprises two half-circular bodies 21 detachably connected, and the two half-circular bodies 21 are symmetrically installed. The cross section of semi-circular ring body 21 is the ring shape, specifically, screw hole 22 is seted up at the both ends of semi-circular ring body 21, and arranges a plurality ofly along semi-circular ring body 21 axis direction. The attachment of semi-circular bodies 21 is achieved by screwing fastening screws into threaded holes 22 of semi-circular bodies 21.
As shown in fig. 7 to 8, the top of the pressure-bearing column 4 has a circular boss, built-in threaded holes 41 are opened along the radial direction of the circular boss, and four built-in threaded holes 41 are uniformly arranged along the circumferential direction.
The using method of the embodiment comprises the following steps:
firstly, device installation:
firstly, the fixed block 3 is horizontally assembled on the side surface of the fixed sleeve 2 to obtain a combined body consisting of the fixed sleeve 2 and the fixed block 3. It should be noted that the relative positions of the fixed block 3 and the fixed sleeve 2 must be on the same horizontal line, and the direction of the through hole 31 of the fixed block 3 should be parallel to the axial direction of the fixed sleeve 2. The fixing sleeve 2 is assembled with the fixing block 2 in the same way.
Two fixing sleeves 2 provided with fixing blocks 3 are arranged on a stand column of the testing machine, the mounting directions are distributed up and down along the stand column, and the distance between the fixing sleeves 2 is slightly larger than the height of a vertical rod 11 of a connecting piece 1 during mounting so as to smoothly assemble the connecting piece 1. After the fixing sleeve 2 is installed on the upright post, a fastening screw on the fixing sleeve 2 is screwed by half, the two fixing blocks 3 are aligned up and down by twisting the fixing sleeve 2 on the upright post, so that the through hole 31 between the two fixing blocks 3 is on a vertical line, and the vertical rod 11 of the connecting piece 1 is assembled with the through hole 31 of the fixing block 3.
The connecting ring 13 end of the connecting piece 1 is assembled with the bearing column 4, and the other end of the connecting piece 1 is assembled with the fixing block 3. Specifically, the pressure-bearing column 4 vertically passes through the connecting ring 13 of the connecting piece 1 from top to bottom until the circular boss on the upper part of the pressure-bearing column 4 is just clamped with the upper part of the connecting ring 13, so that the pressure-bearing column does not shake horizontally. Then, the built-in screw hole 41 of the pressure-bearing column 4 is assembled with a bolt to fix the up-and-down displacement of the pressure-bearing column 4; and then the vertical rod 11 of the connecting piece 1 is assembled with the through hole 31 of the fixing block 3. After the free rotation of the assembled connecting piece 1 is ensured, the fastening screw on the fixing sleeve 2 is screwed to the tightest position.
II, secondly: the test was carried out:
the connecting piece 1 is put under the testing machine, so that the bearing column 4 is positioned over the test piece, and the function of conducting load is achieved. When the test piece itself is matched to the hydraulic travel of the testing machine, the device is not needed, and the connecting piece 1 of the device can be swung to the outer position of the working area of the testing machine. After which the test was started.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A pressure-bearing column connecting device of a pressure testing machine is characterized by comprising a connecting piece, a fixed block and a fixed sleeve, wherein the fixed block is arranged on one side of the fixed sleeve and is attached to the surface of the fixed sleeve; one end of the connecting piece is respectively and rotatably connected with the fixed block; wherein, the connecting piece is provided with a through hole for the pressure bearing column to pass through.
2. The pressure-bearing column connecting device of the pressure testing machine as claimed in claim 1, wherein the connecting piece comprises a vertical rod, a cross rod and a connecting ring, one end of the cross rod is fixed with the vertical rod, and the other end of the cross rod is provided with the connecting ring.
3. The pressure-bearing column connecting device of the pressure testing machine as claimed in claim 2, wherein the vertical rod is rotatably connected with the fixing block, and the connecting ring has a through hole.
4. The pressure-bearing column connecting device of the pressure tester as claimed in claim 1, wherein the fixing sleeve comprises two half-circular ring bodies detachably connected, and the two half-circular ring bodies are symmetrically installed.
5. The pressure-bearing column connecting device of the pressure testing machine as claimed in claim 4, wherein the two semi-circular ring bodies are provided with threaded holes along the axial direction thereof, and are connected through fastening screws.
6. The pressure-bearing column connecting device of the pressure testing machine as claimed in claim 1, wherein the fixing block is provided with a through hole, and one side of the fixing block is provided with an arc-shaped curved surface matched with the fixing sleeve.
7. The pressure-bearing column connecting device of the pressure tester as claimed in claim 6, wherein both ends of the through hole have trapezoidal grooves.
8. Use of a pressure-bearing column connection device of a compression testing machine according to any of claims 1 to 7, characterized in that it comprises the following steps:
horizontally assembling a fixed block to the side surface of a fixed sleeve, and installing the two assembled fixed sleeves on an upright post of a testing machine;
step (2), fastening screws on the fixing sleeve are screwed into a set length, and the fixing sleeve enables the two fixing blocks to be aligned up and down;
step (3) assembling a connecting ring of the connecting piece with the pressure-bearing column, and assembling a vertical rod of the connecting piece with the fixed block; then the fastening screw of the fixing sleeve is screwed to the tightest position;
and (4) swinging the connecting piece to the lower part of the testing machine to enable the pressure-bearing column to be positioned above the test piece, and starting the test.
9. The method for using a pressure-bearing column connecting device of a compression testing machine as claimed in claim 8, wherein in step (1), the relative positions of the fixed block and the fixing sleeve must be on the same horizontal line, and the direction of the through hole of the fixed block and the axial direction of the fixing sleeve are parallel to each other; the mounting directions of the fixing sleeves are distributed up and down along the upright post, and the distance between the two fixing sleeves is greater than the height of the vertical rod of the connecting piece during mounting.
10. The method for using the pressure bearing column connecting device of the compression testing machine according to claim 8, wherein in the step (3), the pressure bearing column vertically passes through the connecting ring of the connecting piece from top to bottom until the pressure bearing column and the connecting ring of the connecting piece are mutually clamped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911165090.9A CN111006937A (en) | 2019-11-25 | 2019-11-25 | Pressure bearing column connecting device of pressure testing machine and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911165090.9A CN111006937A (en) | 2019-11-25 | 2019-11-25 | Pressure bearing column connecting device of pressure testing machine and using method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111006937A true CN111006937A (en) | 2020-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911165090.9A Withdrawn CN111006937A (en) | 2019-11-25 | 2019-11-25 | Pressure bearing column connecting device of pressure testing machine and using method |
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| CN (1) | CN111006937A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112268786A (en) * | 2020-11-03 | 2021-01-26 | 青岛理工大学 | Rock-like material bidirectional pressure test device and working method |
-
2019
- 2019-11-25 CN CN201911165090.9A patent/CN111006937A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112268786A (en) * | 2020-11-03 | 2021-01-26 | 青岛理工大学 | Rock-like material bidirectional pressure test device and working method |
| CN112268786B (en) * | 2020-11-03 | 2023-03-24 | 青岛理工大学 | Rock-like material bidirectional pressure test device and working method |
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Application publication date: 20200414 |
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| WW01 | Invention patent application withdrawn after publication |