CN208999199U - A kind of drilling boxshear apparatus normal direction stress loading device - Google Patents
A kind of drilling boxshear apparatus normal direction stress loading device Download PDFInfo
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- CN208999199U CN208999199U CN201821754077.8U CN201821754077U CN208999199U CN 208999199 U CN208999199 U CN 208999199U CN 201821754077 U CN201821754077 U CN 201821754077U CN 208999199 U CN208999199 U CN 208999199U
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- piston
- cover board
- tension
- drilling
- normal direction
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Abstract
The utility model discloses a kind of drilling boxshear apparatus normal direction stress loading devices, including cylinder body, the end casing at cylinder body both ends is set and is arranged in the intracorporal piston mechanism of cylinder, the cylinder body and the end casing surround cavity, air exhaust nozzle is set on the cylinder body, the piston mechanism includes piston and the piston rod for being threaded through in piston and stretching out piston, the extension end of the piston rod is provided with load bar, the load bar stretches out end casing, the cross section of the load bar is regular hexagon, and the both ends of the piston are provided with tension and compression cover board.The utility model is designed reasonably and at low cost, avoids rubber membrane and applies normal stress as caused by torsional deflection and lead to the problem of deviation, improves the precision of test, and improve the reset capability of rubber membrane, extends its service life.
Description
Technical field
The utility model belongs to drilling boxshear apparatus technical field, adds more particularly, to a kind of drilling boxshear apparatus normal stress
It carries and sets.
Background technique
Drilling boxshear apparatus can be used for testing Rock And Soil shear strength parameter in situ, and normal stress loading device is its core
One of part.The shear plate of existing drilling boxshear apparatus is bolted on the piston rod telescopic head of normal stress loading device,
But there are some problems for rubber membrane in existing normal stress loading device: first, when installing or replacing shear plate, and piston rod
It easily follows turning for bolt and rotates, this results in the rubber membrane in piston rod and also twists therewith；Second, in addition repeatedly
Replacement shear plate causes the increase of twisting amplitude accumulation, easily causes the deformation or abrasion of rubber membrane, shortens what it was used
Service life；Third, since rubber membrane is reversed, rubber membrane can generate biggish retraction force under expansion, cause piston
Bar pushes the power of shear plate to generate relatively large deviation, has seriously affected the precision for applying normal stress；4th, between the double-deck rubber membrane
Frictional force increase, make rubber membrane be difficult to reset, rubber membrane caused to stack on the cover board, affect the telescopic extensions of piston rod.
Therefore, a kind of drilling boxshear apparatus normal direction stress loading device of test result stable accuracy need to be developed.
Utility model content
The technical problem to be solved by the utility model is in view of the deficiency of the prior art, provide a kind of drilling
Boxshear apparatus normal direction stress loading device, it is reasonable and at low cost to design, and avoids rubber membrane and is applied as caused by torsional deflection
Add normal stress to lead to the problem of deviation, improve the precision of test, and improve the reset capability of rubber membrane, extending it makes
It is practical with the service life.
In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of drilling boxshear apparatus is answered with normal direction
Force loading device, it is characterised in that: including cylinder body, the end casing at cylinder body both ends is set and is arranged in the intracorporal piston machine of cylinder
Structure, the cylinder body and the end casing surround cavity, and air exhaust nozzle is arranged on the cylinder body, and the piston mechanism includes piston and wears
It is located in piston and stretches out the piston rod of piston, load bar, the load bar and piston rod is arranged in the extension end of the piston rod
Extension end be detachably connected, the load bar stretches out end casing, and the cross section of the load bar is regular hexagon, the piston
Both ends be provided with tension and compression cover board.
Above-mentioned a kind of drilling boxshear apparatus normal direction stress loading device, it is characterised in that: the piston is by the cavity
It is divided into expansion chamber and contraction chamber, the piston is enclosed close to the side of the expansion chamber and the expansion chamber side wall equipped with the first rubber
Film, the piston are enclosed close to the side of the contraction chamber and the contraction chamber side wall equipped with the second rubber membrane.
Above-mentioned a kind of drilling boxshear apparatus normal direction stress loading device, it is characterised in that: the tension and compression cover board includes leaning on
First tension and compression cover board of the side setting of the nearly expansion chamber and the second tension and compression cover board being arranged close to the side of the contraction chamber,
The one side of the first tension and compression cover board is in close contact with the first rubber membrane being arranged on the one side of piston, and described first draws
Interior hexagon mounting hole, the second tension and compression cover board and the another side that piston is set are provided on the another side of cover clamp
On the second rubber membrane be in close contact.
Above-mentioned a kind of drilling boxshear apparatus normal direction stress loading device, it is characterised in that: the piston rod and first is drawn
Cover clamp is integrally formed, and the piston rod stretches out piston and one end of the second tension and compression cover board is provided with the screw thread installed for load bar
Portion.
Above-mentioned a kind of drilling boxshear apparatus normal direction stress loading device, it is characterised in that: distinguish at the both ends of the piston
It is provided with the groove installed for the first tension and compression cover board and the second tension and compression cover board.
Above-mentioned a kind of drilling boxshear apparatus normal direction stress loading device, it is characterised in that: the end casing is divided into close
The second end cover board of the first end cover board of the expansion chamber and the close contraction chamber, sets between the cylinder body and first end cover board
It is equipped with the first seal washer, the second seal washer, first seal washer are provided between the cylinder body and second end cover board
It is integrally formed with the first rubber membrane, second seal washer and the second rubber membrane are integrally formed.
A kind of above-mentioned drilling boxshear apparatus normal direction stress loading device, it is characterised in that: the first end cover intralamellar part
Equipped with the first gas channel for being connected to the expansion chamber, first gas channel is connect with the first extension tube attached；The second end cover board
Inside is equipped with the second gas channel for being connected to the contraction chamber, and second gas channel is connect with the second extension tube attached.
Above-mentioned a kind of drilling boxshear apparatus normal direction stress loading device, it is characterised in that: the first end cover board and
Long foot bolt is equipped between two end casings, the upper and lower part of the first end cover board is provided with the spiral shell for being connected and fixed shear plate
Hole is provided with the mounting hole being pierced by for load bar in the middle part of the second end cover board.
Above-mentioned a kind of drilling boxshear apparatus normal direction stress loading device, it is characterised in that: the air exhaust nozzle is self-closing close
Seal air exhaust nozzle.
Above-mentioned a kind of drilling boxshear apparatus normal direction stress loading device, it is characterised in that: be provided in the load bar
One end of threaded hole, the load bar is connect with piston rod thread, and the other end of the load bar passes through screw and mobile shearing
Plate connection.
Compared with the prior art, the utility model has the following advantages:
1, simple structure and reasonable design and installation are laid easy, and input cost is lower.
2, the cross section of the utility model load bar is regular hexagon, occurs to turn under external force which has limited load bar
It is dynamic, apply normal stress as caused by torsional deflection so as to avoid rubber membrane and lead to the problem of deviation, improves test
Precision.
3, air exhaust nozzle is set on the utility model cylinder body, so that rubber membrane is close to inboard wall of cylinder block by pumping, and in two rubbers
Certain gap is generated between epithelium, this avoids the frictions that rubber membrane moves back and forth generation, improve the reset energy of rubber membrane
Power extends its service life.
4, the both ends of the utility model piston are provided with tension and compression cover board, and tension and compression cover board and rubber membrane are in close contact, improve
The airtightness of expansion chamber and contraction chamber.By the way that mounting hole is arranged in tension and compression cover board, the convenience of equipment disassembly and installation is improved.
In conclusion the utility model is designed reasonably and at low cost, is avoided rubber membrane and is applied as caused by torsional deflection
Add normal stress to lead to the problem of deviation, improve the precision of test, and improve the reset capability of rubber membrane, extending it makes
It is practical with the service life.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the connection schematic diagram of the utility model and the boxshear apparatus that drills.
Description of symbols:
1- cylinder body；1-1-expansion chamber；1-2- contraction chamber；
1-3-air exhaust nozzle；The first rubber membrane of 2-1-；
The second rubber membrane of 2-2-；2-3- piston；
2-4-piston rod；3-end casings；3-1-first end cover board；
3-1-1-the first gas extension tube attached of channel 3-1-2-first；3-2-second end cover board；
The second gas of 3-2-1-channel；The second extension tube attached of 3-2-2-；The first seal washer of 4-1-；
The second seal washer of 4-2-；5- the first tension and compression cover board；Hexagon mounting hole in 5-1-；
6- the second tension and compression cover board；7- load bar；7-1- threaded hole；
8- long foot bolt；9- fixed shear plate；9-1-screw hole；
The first bolt of 9-2-；10-mobile shear plates；The second bolt of 10-1-.
Specific embodiment
As shown in Figure 1, the utility model includes cylinder body 1, the end casing 3 that 1 both ends of cylinder body are arranged in and is arranged in cylinder body 1
Piston mechanism, the cylinder body 1 surrounds cavity with the end casing 3, air exhaust nozzle 1-3, the piston machine is arranged on the cylinder body 1
Structure includes the piston 2-3 and piston rod 2-4 for being threaded through in piston 2-3 and stretching out piston 2-3, the extension end of the piston rod 2-4
Load bar 7 is set, the extension end of the load bar 7 and piston rod 2-4 is detachably connected, and the load bar 7 stretches out end casing 3,
The cross section of the load bar 7 is regular hexagon, and the both ends of the piston 2-3 are provided with tension and compression cover board.
As shown in Figure 1, the cavity is divided into expansion chamber 1-1 and contraction chamber 1-2, institute by the piston 2-3 in the present embodiment
Piston 2-3 is stated to enclose close to the side of the expansion chamber 1-1 and the expansion chamber 1-1 side wall equipped with the first rubber membrane 2-1, the work
Plug 2-3 is enclosed close to the side of the contraction chamber 1-2 and the contraction chamber 1-2 side wall equipped with the second rubber membrane 2-2.
As shown in Figure 1, in the present embodiment, the tension and compression cover board includes the be arranged close to the side of the expansion chamber 1-1
One tension and compression cover board 5 and the second tension and compression cover board 6 being arranged close to the side of the contraction chamber 1-2, the one of the first tension and compression cover board 5
Side is in close contact with the first rubber membrane 2-1 for being arranged on the one side of piston 2-3, the first tension and compression cover board 5 it is another
Be provided with interior hexagon mounting hole 5-1 on side, the second tension and compression cover board 6 be arranged on the another side of piston 2-3
Second rubber membrane 2-2 is in close contact.
In the present embodiment, the piston rod 2-4 and the first tension and compression cover board 5 are integrally formed, and the piston rod 2-4 stretches out piston
One end of 2-3 and the second tension and compression cover board 6 is provided with the threaded portion installed for load bar 7.
In the present embodiment, the both ends of the piston 2-3 are respectively arranged with for the first tension and compression cover board 5 and the second tension and compression cover board 6
The groove of installation.
As shown in Figure 1, the end casing 3 divides for close to the first end cover board 3-1 of the expansion chamber 1-1 in the present embodiment
Second end cover board 3-2 with close to the contraction chamber 1-2, is provided with the first sealing between the cylinder body 1 and first end cover board 3-1
Washer 4-1 is provided with the second seal washer 4-2, the first seal washer 4-1 between the cylinder body 1 and second end cover board 3-2
It is integrally formed with the first rubber membrane 2-1, the second seal washer 4-2 and the second rubber membrane 2-2 are integrally formed.
In the present embodiment, the first gas channel 3-1- for being connected to the expansion chamber 1-1 is equipped with inside the first end cover board 3-1
1, first gas channel 3-1-1 is connect with the first extension tube attached 3-1-2；It is equipped with described in connection inside the second end cover board 3-2
The second gas channel 3-2-1 of contraction chamber 1-2, second gas channel 3-2-1 are connect with the second extension tube attached 3-2-2.
As shown in Figure 3 and Figure 4, it in the present embodiment, is equipped between the first end cover board 3-1 and second end cover board 3-2
Long foot bolt 8, the upper and lower part of the first end cover board 3-1 are provided with the screw hole 9-1 for being connected and fixed shear plate 9, and described
The mounting hole being pierced by for load bar 7 is provided in the middle part of two end casing 3-2.
In the present embodiment, the air exhaust nozzle 1-3 is self-closing sealing air exhaust nozzle.
As shown in Fig. 2, in the present embodiment, be provided with threaded hole 7-1 in the load bar 7, one end of the load bar 7 with
Piston rod 2-4 is threadedly coupled, and the other end of the load bar 7 is connect by screw with mobile shear plate 10.
In the present embodiment, the air exhaust nozzle 1-3 is between the first rubber membrane 2-1 and the second rubber membrane 2-2.
In the present embodiment, the air exhaust nozzle 1-3 has self-closing sealing function, can be evacuated by being evacuated needle, make the first rubber
Epithelium 2-1 and the second rubber membrane 2-2 are tightly attached to the inner wall of cylinder body 1, and make the first rubber membrane 2-1's and the second rubber membrane 2-2
Certain gap is generated between the double-deck rubber membrane, is reduced the friction of rubber membrane itself, is improved self-resetting capability.And air exhaust nozzle 1-
3 make to generate gap between the double-deck rubber membrane by pumping, reduce the frictional force between rubber membrane, reset rubber membrane in time,
It avoids rubber membrane from stacking on the cover board, guarantees the telescopic extensions of piston rod.
In the present embodiment, load bar 7 is that hexagon limits load bar 7 in outer masterpiece when installing or replacing shear plate
It rotates under, avoids piston rod 2-4 that bolt is followed to turn and rotate, so as to avoid rubber membrane since torsional deflection generates
The problem of retraction force, guarantees that piston rod 2-4 pushes the power of mobile shear plate 10 to generate deviation and reduces, improve by load bar 7
Apply the precision that normal stress generates；Meanwhile avoiding the mobile shear plate 10 of repeatedly replacement that rubber membrane is caused to twist amplitude accumulation
Increase, reduce the deformation or abrasion of rubber membrane, improve the service life that rubber membrane uses.
In the present embodiment, the setting of the first tension and compression cover board 5, be in order in the first tension and compression cover board 5 by pressure to the first rubber
Epithelium 2-1 is fixed, so that the first bottom rubber membrane 2-1 and the first tension and compression cover board 5 and piston 2-3 one side wall are in close contact,
Improve the leakproofness of the expansion chamber 1-1；
The setting of second tension and compression cover board 6 is to be carried out by pressure to the second rubber membrane 2-2 in the second tension and compression cover board 6
It is fixed, so that the second bottom rubber membrane 2-2 and another side wall of the second tension and compression cover board 6 and piston 2-3 are in close contact, improve described
The leakproofness of contraction chamber 1-2.
In the present embodiment, the first rubber membrane 2-1 and the second rubber membrane 2-2 in double-layer folding and are laid in piston 2-3 and cylinder
Between 1 inner wall of body, and the first seal washer 4-1 and the second sealing ring 4-2 are located between 1 end of cylinder body and end casing 3, exist in this way
The expansion chamber 1-1 and contraction chamber 1-2 of sealing are formed under the pulling force of long foot bolt 8.
In the present embodiment, during actual use, the first extension tube attached 3-1-2 and the second extension tube attached 3-2-2 lead to respectively
Connector is crossed to connect with outside gas supply tracheae.
In the present embodiment, the setting of interior hexagon mounting hole 5-1 is to pass through installation tool when installing load bar 7
In being inserted into hexagon mounting hole 5-1, limits the rotation of the first tension and compression cover board 5 and limit the rotation of piston rod 2-4, facilitate load
The installation of bar 7.
As shown in figure 4, first bolt 9-2, which is passed through screw hole 9-1, makes first end cover board 3- when the utility model is specifically used
1 is fixedly connected with fixed shear plate 9, by the second bolt 10-1 by the extension end spiral shell of the mobile shear plate 10 and load bar 7
Line connection, realizes being fixedly connected for mobile shear plate 10；When needing to load normal stress, outside gas supply tracheae passes through outside first
Adapter tube 3-1-2 is supplied to the expansion chamber 1-1, gas in the enclosure space of the first rubber membrane 2-1 and the first tension and compression cover board 5
Piston 2-3 and piston rod 2-4 movement is expanded against, piston rod 2-4 pushes load bar 7 to move to direction is stretched out, so that realizing makes
Load bar 7 drives mobile shear plate 10 to apply normal stress, applies the mistake of normal stress in the mobile shear plate 10 of the drive of load bar 7
Cheng Zhong, the supply gas pressure by adjusting expansion chamber 1-1 control normal direction stress intensity.When needing to unload normal stress, outside is supplied
Gas tracheae is supplied by the second extension tube attached 3-2-2 to the contraction chamber 1-2, the second rubber membrane 2-2 and the second tension and compression cover board 6
Enclosure space in gas expansion push piston 2-3 and piston rod 2-4 counter motion, piston rod 2-4 drives load bar 7 to shrink,
Load bar 7 drives mobile shear plate 10 far from the hole wall soil body, to realize unloading, stops the load of normal stress.
The above is only the preferred embodiment of the utility model, not imposes any restrictions to the utility model, all
According to any simple modification to the above embodiments of the utility model technical spirit, change and equivalent structural changes, still
Belong in the protection scope of technical solutions of the utility model.
Claims (10)
1. a kind of drilling boxshear apparatus normal direction stress loading device, it is characterised in that: including cylinder body (1), be arranged in cylinder body (1) two
The end casing (3) at end and the piston mechanism being arranged in cylinder body (1), the cylinder body (1) and the end casing (3) surround cavity,
Air exhaust nozzle (1-3) is set on the cylinder body (1), the piston mechanism includes piston (2-3) and is threaded through in piston (2-3) and stretches
Load bar (7) are arranged in the piston rod (2-4) of piston (2-3) out, the extension end of the piston rod (2-4), the load bar (7) with
The extension end of piston rod (2-4) is detachably connected, and the load bar (7) stretches out end casing (3), the load bar (7) it is transversal
Face is regular hexagon, and the both ends of the piston (2-3) are provided with tension and compression cover board.
2. a kind of drilling boxshear apparatus normal direction stress loading device described in accordance with the claim 1, it is characterised in that: the piston
The cavity is divided into expansion chamber (1-1) and contraction chamber (1-2) by (2-3), and the piston (2-3) is close to the expansion chamber (1-1)
Side and the expansion chamber (1-1) side wall enclose equipped with the first rubber membrane (2-1), the piston (2-3) is close to the contraction chamber
The side of (1-2) and the contraction chamber (1-2) side wall are enclosed equipped with the second rubber membrane (2-2).
3. a kind of drilling boxshear apparatus normal direction stress loading device according to claim 2, it is characterised in that: the tension and compression
Cover board includes close to the first tension and compression cover board (5) of the side of the expansion chamber (1-1) setting and close to the contraction chamber (1-2)
Second tension and compression cover board (6) of side setting, the one side of the first tension and compression cover board (5) and setting are in the side of piston (2-3)
The first rubber membrane (2-1) on face is in close contact, and interior hexagon peace is provided on the another side of the first tension and compression cover board (5)
It fills hole (5-1), the second tension and compression cover board (6) and the second rubber membrane (2-2) being arranged on the another side of piston (2-3) are tight
Contiguity touching.
4. a kind of drilling boxshear apparatus normal direction stress loading device described in accordance with the claim 3, it is characterised in that: the piston
Bar (2-4) and the first tension and compression cover board (5) are integrally formed, and the piston rod (2-4) stretches out piston (2-3) and the second tension and compression cover board
(6) one end is provided with the threaded portion for load bar (7) installation.
5. a kind of drilling boxshear apparatus normal direction stress loading device described in accordance with the claim 3, it is characterised in that: the piston
The both ends of (2-3) are respectively arranged with the groove for the first tension and compression cover board (5) and the installation of the second tension and compression cover board (6).
6. a kind of drilling boxshear apparatus normal direction stress loading device according to claim 2, it is characterised in that: the end cap
Plate (3) is divided into the first end cover board (3-1) close to the expansion chamber (1-1) and the second end cover close to the contraction chamber (1-2)
Plate (3-2) is provided with the first seal washer (4-1) between the cylinder body (1) and first end cover board (3-1), the cylinder body (1) with
It is provided between second end cover board (3-2) the second seal washer (4-2), first seal washer (4-1) and the first rubber membrane
(2-1) is integrally formed, and second seal washer (4-2) and the second rubber membrane (2-2) are integrally formed.
7. a kind of drilling boxshear apparatus normal direction stress loading device according to claim 6, it is characterised in that: described first
The the first gas channel (3-1-1) for being connected to the expansion chamber (1-1), first gas channel (3-1- are equipped with inside end casing (3-1)
1) it is connect with the first extension tube attached (3-1-2)；It is equipped with inside the second end cover board (3-2) and is connected to the of the contraction chamber (1-2)
Two gas channels (3-2-1), second gas channel (3-2-1) are connect with the second extension tube attached (3-2-2).
8. a kind of drilling boxshear apparatus normal direction stress loading device according to claim 6, it is characterised in that: described first
Be equipped between end casing (3-1) and second end cover board (3-2) long foot bolt (8), the top of the first end cover board (3-1) and
Lower part is provided with the screw hole (9-1) for being connected and fixed shear plate (9), is provided in the middle part of the second end cover board (3-2) for load
The mounting hole that bar (7) is pierced by.
9. a kind of drilling boxshear apparatus normal direction stress loading device according to claim 1 or 2, it is characterised in that: described
Air exhaust nozzle (1-3) is self-closing sealing air exhaust nozzle.
10. a kind of drilling boxshear apparatus normal direction stress loading device according to claim 1 or 2, it is characterised in that: described
It is provided with threaded hole (7-1) in load bar (7), one end of the load bar (7) is threadedly coupled with piston rod (2-4), described to add
The other end for carrying bar (7) is connect by screw with mobile shear plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821754077.8U CN208999199U (en) | 2018-10-26 | 2018-10-26 | A kind of drilling boxshear apparatus normal direction stress loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821754077.8U CN208999199U (en) | 2018-10-26 | 2018-10-26 | A kind of drilling boxshear apparatus normal direction stress loading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208999199U true CN208999199U (en) | 2019-06-18 |
Family
ID=66805650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821754077.8U Active CN208999199U (en) | 2018-10-26 | 2018-10-26 | A kind of drilling boxshear apparatus normal direction stress loading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208999199U (en) |
-
2018
- 2018-10-26 CN CN201821754077.8U patent/CN208999199U/en active Active
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