CN211740934U - Shear test device - Google Patents
Shear test device Download PDFInfo
- Publication number
- CN211740934U CN211740934U CN202020069372.0U CN202020069372U CN211740934U CN 211740934 U CN211740934 U CN 211740934U CN 202020069372 U CN202020069372 U CN 202020069372U CN 211740934 U CN211740934 U CN 211740934U
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- box
- roller
- shear
- shear box
- test device
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Abstract
The utility model discloses a shear test device, including shearing the box down and installing the box of cuting on shearing the box down, the box of cuting on still install L shape steel backing plate, L shape steel backing plate and last shearing box between still arranged and roll the row device. The utility model discloses in utilize the cylinder, turn into rolling friction with sliding friction, reduced the normal direction loading device and cut the friction between the box on and greatly, improve the precision of shearing the experiment.
Description
Technical Field
The utility model belongs to civil engineering test field, concretely relates to shear test device.
Background
In an indoor shear test, the measured shear stress is larger than an actual value due to friction between a loading device of a normal load and an upper shear box, and the obtained shear test data are distorted and the test fails seriously.
Disclosure of Invention
To above-mentioned prior art not enough with the defect, the utility model aims to provide a shear test device, the shear test data distortion that the experimental apparatus friction among the solution prior art leads to greatly leads to easily leads to experimental failure's technical problem.
In order to achieve the purpose, the technical scheme is as follows: the utility model provides a shear test device, includes the lower shear box and installs the last shear box on the lower shear box, last shear box on still install L shape steel backing plate, L shape steel backing plate and last shear box between still arranged the row of rolling device.
The utility model discloses still have following technical characteristic:
the roller device comprises a roller frame and rollers arranged in the roller frame in parallel, rollers are sleeved on the rollers and can rotate around the rollers, and the outer surfaces of the rollers are provided with regularly arranged bulges.
Grooves are uniformly arranged on the surface of the upper shearing box, which is in contact with the rolling device, and the size of each groove is matched with that of each protrusion;
one end of the upper shearing box is also provided with a threaded hole, a screw rod is connected in the threaded hole, and the screw rod comprises a threaded rod and a fixed rod which are connected with each other. The threaded rod is connected in the threaded hole, the fixing rod is connected with a cushion block, and the cushion block is sleeved with the fixing rod through a fixing hole formed in the cushion block.
The L-shaped steel backing plate comprises a parallel plate contacted with the rolling device and an end plate vertically connected with one end of the parallel plate, a gap is reserved on the end plate, and the cushion block is arranged in the gap.
Compared with the prior art, the utility model, profitable technological effect is:
(I) the utility model discloses in utilize the cylinder, turn into rolling friction with sliding friction, reduced greatly and sheared the in-process normal direction loading device and go up the friction between the shear box, improve the precision of shearing the experiment.
(II) the utility model discloses place L shaped steel backing plate on rolling row, can avoid rolling row and normal direction loading device direct contact and the unstable phenomenon of sample device that probably leads to because of shearing process in.
(III) the utility model has the advantages of simple integral structure, convenient operation and strong practicability.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic top view of the upper shear box;
FIG. 3 is a schematic view of a roller arrangement device;
FIG. 4 is a schematic view of a screw structure;
FIG. 5 is a schematic structural view of the side of the upper shear box to which the spacer block is attached;
FIG. 6 is a schematic diagram of the right structure of the upper shear box;
FIG. 7 is a schematic diagram of the right side view of the upper shear box with the spacer removed
The meaning of the individual reference symbols in the figures is: 1-lower shearing box, 2-upper shearing box, 3-L-shaped steel backing plate, 4-rolling device, 5-rolling frame, 6-rolling shaft, 7-rolling drum, 8-protrusion, 9-groove, 10-threaded hole, 11-screw rod, 12-threaded rod, 13-fixed rod, 14-cushion block, 15-fixed hole, 16-parallel plate, 17-end plate and 18-notch.
The following detailed description of the present invention will be made with reference to the accompanying drawings and examples.
Detailed Description
The following embodiments of the present invention are given, and it should be noted that the present invention is not limited to the following embodiments, and all the equivalent transformations made on the basis of the technical solution of the present application all fall into the protection scope of the present invention.
Example 1:
according to the technical scheme, as shown in fig. 1 to 4, the shear test device provided by the embodiment comprises a lower shear box and an upper shear box 2 mounted on the lower shear box 1, wherein an L-shaped steel base plate 3 is further mounted on the upper shear box 2, and a rolling device 4 is further arranged between the L-shaped steel base plate 3 and the upper shear box 2. Utilize row of rolling device 4, convert sliding friction into rolling friction, reduced the friction between shearing in-process normal direction loading device and the last shearing box 2 greatly, place L shaped steel backing plate 3 on the row of rolling in addition, can avoid because of the device unstability phenomenon that row of rolling device 4 and normal direction loading device direct contact probably lead to among the shearing process.
As a preferable mode of this embodiment, the roller arrangement device 4 includes a roller arrangement frame 5 and a roller 6 installed in the roller arrangement frame 5 in parallel, a roller 7 is sleeved on the roller 6, the roller 7 can rotate around the roller 6, and regularly arranged protrusions 8 are provided on an outer surface of the roller 7.
As a preference of this embodiment, the surface of the upper shear box 2 contacting with the roller arrangement device 4 is uniformly provided with grooves 9, and the size of the grooves 9 is adapted to the size of the protrusions 8; the top of the upper shearing box 2 is required to be made of magnetic materials so as to ensure that the rolling device 4 cannot slide when placed at the top of the upper shearing box 2, in addition, after the rolling device 4 is placed, the rollers 7 need to be rotated to ensure that the circular protrusions 8 uniformly distributed on the outer surface of the rollers 7 are matched with the grooves 9 uniformly distributed on the upper surface of the upper shearing box 2, and the operation needs to be repeated for each roller 7 until all the rollers 7 are completely matched with the surface of the upper shearing box 2.
The L-shaped steel backing plate 3 and the surface of the rolling device 4 are uniformly provided with grooves 9, and the size of the grooves 9 is adapted to the size of the protrusions 8. The non-notched surface of the L-shaped steel backing plate is placed on the roller row, and the groove 9 on the L-shaped steel backing plate 3 is required to be matched with the circular protrusion 8 on the roller 7.
Preferably, in this embodiment, a threaded hole 10 is further formed in one end of the upper shear box 2, a screw 11 is connected to the threaded hole 10, and the screw 11 includes a threaded rod 12 and a fixing rod 13 that are connected to each other. The threaded rod 12 is connected in the threaded hole 10, the fixing rod 13 is connected with a cushion block 14, and the cushion block 14 is sleeved with the fixing rod 13 through a fixing hole 15 formed in the cushion block 14. The right end surface of the upper shearing box 2 is provided with four threaded holes 10, after threaded rods 12 of the four threaded rods 11 are connected with the threaded holes 10, fixing rods 13 of the threaded rods 11 are connected with fixing holes 15 on a cushion block 14 in a pressing mode, four fixing holes 15 with the same size and depth are arranged at the bottom of the cushion block 14 and used for connecting the fixing rods 13 extending out of the upper shearing box, and the cushion block 14 can be detached, so that when the cushion block 14 is replaced, only the cushion block 14 needs to be pulled out in the opposite direction of pressing. The cushion block is used for pushing the upper shearing box 2 under the roller row to move during shearing so as to achieve the aim of shearing.
Preferably, the L-shaped steel backing plate 3 comprises a parallel plate 16 contacting the rolling device 4 and an end plate 17 perpendicularly connected to one end of the parallel plate 16, wherein a notch 18 is formed in the end plate 17, and the pad 14 is disposed in the notch 18. The notches 18 are left for mounting the spacer 14 and the end plate 17 serves as a reference position for mounting the roller assembly and for mounting the shear box 2.
When the device is used, the lower shearing box 1 and the upper shearing box 2 are firstly installed, then the rolling device 4 is arranged on the upper surface of the upper shearing box 2, after the rolling device 4 is placed, the roller 7 is rotated to enable the circular protrusions 8 uniformly distributed on the outer surface of the roller 7 to be matched with the grooves 9 uniformly distributed on the upper surface of the upper shearing box 2, and the operation is repeated on each roller 7 until all the rollers 7 are completely matched with the surface of the upper shearing box 2. The L-shaped steel backing plate 3 is placed on the rolling device 4, the grooves 9 of the L-shaped steel backing plate 3 are matched with the corresponding bulges 8 of each roller through adjustment, and the gaps 18 on the end plate 17 of the L-shaped steel backing plate 3 are provided with cushion blocks 14.
During the experiment, will treat during the soil of shearing adds lower shear box 1 and upper shear box 2, normal direction load device acts on parallel plate 16, and horizontal load device acts on cushion 14, begins the experiment, because the effect of row of rolling device 4 has reduced experimental error, has improved the experiment precision, has reduced the possibility of experiment failure.
Claims (5)
1. The utility model provides a shear test device, includes shear box (1) down and installs last shear box (2) on shear box (1) down, its characterized in that, last shear box (2) on still install L shape steel backing plate (3), L shape steel backing plate (3) and last shear box (2) between still arranged and roll row device (4).
2. The shear test device according to claim 1, wherein the roller arrangement device (4) comprises a roller arrangement frame (5) and rollers (6) arranged in the roller arrangement frame (5) in parallel, a roller (7) is sleeved on each roller (6), the rollers (7) can rotate around the rollers (6), and regularly arranged bulges (8) are arranged on the outer surface of each roller (7).
3. The shear test device according to claim 2, wherein the surface of the upper shear box (2) contacting the roller row device (4) is uniformly provided with grooves (9), and the size of the grooves (9) is adapted to the size of the protrusions (8);
the surface of the L-shaped steel base plate (3) contacted with the rolling device (4) is uniformly provided with grooves (9), and the size of each groove (9) is adapted to the size of each protrusion (8).
4. The shear test device according to claim 1, wherein one end of the upper shear box (2) is further provided with a threaded hole (10), a screw (11) is connected in the threaded hole (10), the screw (11) comprises a threaded rod (12) and a fixed rod (13) which are connected with each other, the threaded rod (12) is connected in the threaded hole (10), the fixed rod (13) is connected with a cushion block (14), and the cushion block (14) is sleeved with the fixed rod (13) through a fixed hole (15) formed in the cushion block (14).
5. The shear test device according to claim 4, wherein the L-shaped steel shim plate (3) comprises a parallel plate (16) contacting the rolling device (4) and an end plate (17) perpendicularly connected to one end of the parallel plate (16), a notch (18) is left in the end plate (17), and the spacer block (14) is arranged in the notch (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020069372.0U CN211740934U (en) | 2020-01-13 | 2020-01-13 | Shear test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020069372.0U CN211740934U (en) | 2020-01-13 | 2020-01-13 | Shear test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211740934U true CN211740934U (en) | 2020-10-23 |
Family
ID=72881307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020069372.0U Expired - Fee Related CN211740934U (en) | 2020-01-13 | 2020-01-13 | Shear test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211740934U (en) |
-
2020
- 2020-01-13 CN CN202020069372.0U patent/CN211740934U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201023 Termination date: 20220113 |