CN205370615U - Hydraulic pressure lets pressure stock - Google Patents
Hydraulic pressure lets pressure stock Download PDFInfo
- Publication number
- CN205370615U CN205370615U CN201620059177.3U CN201620059177U CN205370615U CN 205370615 U CN205370615 U CN 205370615U CN 201620059177 U CN201620059177 U CN 201620059177U CN 205370615 U CN205370615 U CN 205370615U
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- anchor rod
- stock
- pressure
- hydraulic oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000010720 hydraulic oil Substances 0.000 claims description 22
- 239000011435 rock Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 3
- 230000008093 supporting effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model provides a hydraulic pressure lets pressure stock, including the post of living, hydraulic tank and the stock body, the one end and the one end of the stock body of the post of living are connected, and the post is lived through assembly chamber and hydraulic tank swing joint, the last unloading valve that is provided with of hydraulic tank in the last terminal open -ended assembly chamber of having seted up of hydraulic tank. The beneficial effects of the utility model are that: simple structure, the site work personnel's of being convenient for assembly is installed, let and press the effect obvious, adopt hydraulic pressure let press to adjust according to stress in surrounding rock and let pressure value, reach the purpose of controlling surrouding rock deformation, the pretightning force of stock can be shown, the initiative supprot effect of stock has been ensured.
Description
Technical Field
The utility model relates to a coal mine production technical field especially relates to a hydraulic pressure lets presses stock.
Background
The anchor rod is frequently adopted in roadway support of coal mines as the most common support means, but with the gradual increase of coal mining depth in China, the stress on the roadway is gradually increased, and when the deformation of a roadway rock body exceeds the maximum deformation allowed by the anchor rod, the anchor rod can be broken and failed due to large deformation value. In order to inhibit the problem of large deformation of roadway rock masses, a yielding anchor rod is arranged in the prior art, and the yielding anchor rod is characterized in that a specific yielding device is arranged in the anchor rod, when a supported structure is subjected to large deformation, the anchor rod body is deformed in a manner of adapting to the rock-soil mass through the yielding device, and the specific supporting effect is kept while the anchor rod body is prevented from being broken and losing efficacy. However, the existing yielding anchor rod still has a plurality of problems: let and press stock structure complicated, the cost is higher, let and press the effect relatively poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hydraulic pressure lets presses the stock in order to simplify and let structure, the optimization of pressing the stock and let the pressure effect.
The utility model provides a hydraulic pressure lets pressure stock, including the post that lives, hydraulic tank and the stock body, the one end of the post that lives is connected with the one end of the stock body, has seted up terminal open-ended assembly chamber on the hydraulic tank, and the post that lives is provided with the off-load valve through assembly chamber and hydraulic tank swing joint on the hydraulic tank.
Furthermore, a first connecting hole is formed in the movable column, a second connecting hole is formed in the hydraulic oil tank, the anchor rod body penetrates through the first connecting hole and the second connecting hole, and the anchor rod body is movably connected with the second connecting hole.
Furthermore, a pressure sensor is arranged in the hydraulic oil tank, a controller and a display are arranged on the plunger, and the controller is in signal connection with the pressure sensor and the display respectively.
Furthermore, one end of the anchor rod body is connected with a nut in an assembling mode, and one end of the movable column is connected with the nut in a clamping mode.
Furthermore, one end of the plunger is fixedly connected with a backing plate.
Furthermore, the unloading valve is an electromagnetic valve, and the controller is in signal connection with the electromagnetic valve.
Further, the unloading valve is a safety valve.
Compared with the prior art, the utility model discloses a hydraulic pressure lets presses stock has following characteristics and advantage:
1. the hydraulic yielding anchor rod has simple structure and is convenient for assembly and installation of field workers;
2. The hydraulic yielding anchor rod has obvious yielding effect, and can adjust the yielding value according to the stress of the surrounding rock by adopting hydraulic yielding so as to achieve the purpose of controlling the deformation of the surrounding rock;
3. the utility model discloses a hydraulic pressure lets presses the stock, can show the pretightning force of stock, has ensured the initiative supporting effect of stock.
After reading the detailed description of the present invention in conjunction with the drawings, the features and advantages of the present invention will become more apparent.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a hydraulic yielding anchor rod in an embodiment of the present invention;
wherein,
1. the device comprises a movable column, 11, a base plate, 12, a controller, 13, a display, 14, a first connecting hole, 2, a hydraulic oil tank, 21, an assembly cavity, 22, a pressure sensor, 23, an unloading valve, 24, a second connecting hole, 3, an anchor rod body, 4, a nut, 5 and surrounding rock.
Detailed Description
The first embodiment is as follows:
as shown in fig. 1, the present embodiment provides a hydraulic yield bolt. The end of the anchor rod body 3 stretches into the surrounding rock 5 and is connected with the surrounding rock 5 through the anchoring agent fixed connection, the other end assembly connection of the anchor rod body 3 has the nut 4, the one end fixedly connected with backing plate 11 of the post that lives 1, the post that lives 1 is connected with the nut 4 block through the backing plate 11, the assembly chamber 21 has been seted up on the hydraulic tank 2, the end opening in assembly chamber 21, the post that lives 1 can insert and realize post that the post that lives 1 and hydraulic tank 2 swing joint in the assembly chamber 21, the post that lives 1 can make linear motion for the assembly chamber 21, be provided with the off-load valve 23 on the hydraulic tank 2, the off-load valve 23 in this embodiment is the solenoid valve, controller 12 and solenoid valve signal. The first connecting hole 14 is formed in the plunger 1, the second connecting hole 24 is formed in the hydraulic oil tank 2, the anchor rod body 3 penetrates through the first connecting hole 14 and the second connecting hole 24, and the anchor rod body 3 is movably connected with the second connecting hole 24. The hydraulic oil tank 2 is provided with a pressure sensor 22, the plunger 1 is provided with a controller 12 and a display 13, and the controller 12 is respectively connected with the pressure sensor 22 and the display 13 through signals.
The hydraulic yielding anchor rod in the embodiment has the following working process: after the tail end of the anchor rod body 3 is fixedly connected with the surrounding rock 5, the pre-tightening force of the anchor rod is monitored through the pressure sensor 22, and data are transmitted to the display 13 through the controller 12, so that the anchor rod achieves a certain pre-tightening force when being installed, and the anchor rod plays a role of active supporting. When the surrounding rock 5 deforms, the anchor rod body 3 is stressed and pulled, the plunger 1 moves towards the direction of the hydraulic oil tank 2 through the matching of the assembly cavity 21, hydraulic oil in the hydraulic oil tank 2 is compressed, the pressure monitored by the pressure sensor 22 is increased, the electromagnetic valve is opened through the controller 12, a part of the flow of the hydraulic oil in the hydraulic oil tank 2 is enabled to be adjusted to a yielding value according to the stress of the surrounding rock 5, and the purpose of controlling the deformation of the surrounding rock is achieved. When the pressure of the hydraulic oil in the hydraulic oil tank 2 is reduced, the electromagnetic valve is closed, the pressure of the hydraulic oil in the hydraulic oil tank 2 is gradually increased along with the continuous deformation of the surrounding rocks 5, then the electromagnetic valve is opened again, and the process is repeated.
Example two:
the difference between the present embodiment and the first embodiment is that the unloading valve 23 in the present embodiment is a safety valve, and the outflow of the hydraulic oil in the hydraulic oil tank 2 is controlled by setting a threshold value of the safety valve, so as to change the pressure-yielding value of the pressure-yielding anchor rod.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (7)
1. The utility model provides a hydraulic pressure lets pressure stock which characterized in that: the movable column comprises a movable column, a hydraulic oil tank and an anchor rod body, wherein one end of the movable column is connected with one end of the anchor rod body, an assembly cavity with an opening at the tail end is formed in the hydraulic oil tank, the movable column is movably connected with the hydraulic oil tank through the assembly cavity, and an unloading valve is arranged on the hydraulic oil tank.
2. The hydraulic pressure lets press stock of claim 1, characterized in that: the movable column is provided with a first connecting hole, the hydraulic oil tank is provided with a second connecting hole, the anchor rod body penetrates through the first connecting hole and the second connecting hole, and the anchor rod body is movably connected with the second connecting hole.
3. The hydraulic pressure let-down bolt of claim 1 or 2, characterized in that: and a pressure sensor is arranged in the hydraulic oil tank, a controller and a display are arranged on the plunger, and the controller is in signal connection with the pressure sensor and the display respectively.
4. The hydraulic yield anchor rod of claim 3, wherein: one end of the anchor rod body is connected with a nut in an assembling mode, and one end of the movable column is connected with the nut in a clamping mode.
5. The hydraulic yield anchor rod of claim 4, wherein: one end of the plunger is fixedly connected with a backing plate.
6. The hydraulic yield anchor rod of claim 5, wherein: the unloading valve is an electromagnetic valve, and the controller is in signal connection with the electromagnetic valve.
7. The hydraulic yield anchor rod of claim 5, wherein: the unloading valve is a safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620059177.3U CN205370615U (en) | 2016-01-21 | 2016-01-21 | Hydraulic pressure lets pressure stock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620059177.3U CN205370615U (en) | 2016-01-21 | 2016-01-21 | Hydraulic pressure lets pressure stock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205370615U true CN205370615U (en) | 2016-07-06 |
Family
ID=56273033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620059177.3U Expired - Fee Related CN205370615U (en) | 2016-01-21 | 2016-01-21 | Hydraulic pressure lets pressure stock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205370615U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437802A (en) * | 2016-12-23 | 2017-02-22 | 山东科技大学 | Anchor rod yield device with alert function and application method |
| CN109184765A (en) * | 2018-08-03 | 2019-01-11 | 中南大学 | A kind of stable state allow pressure release can detachable hydraulic anchor pole and its method for protecting support |
| CN109763851A (en) * | 2019-03-28 | 2019-05-17 | 中国矿业大学 | Have anchor force grading forewarning system and the reciprocal plastic deformation of tool allows the anchorage and method of pressure characteristic |
-
2016
- 2016-01-21 CN CN201620059177.3U patent/CN205370615U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437802A (en) * | 2016-12-23 | 2017-02-22 | 山东科技大学 | Anchor rod yield device with alert function and application method |
| CN106437802B (en) * | 2016-12-23 | 2019-12-20 | 山东科技大学 | Anchor rod yielding device with warning function and using method |
| CN109184765A (en) * | 2018-08-03 | 2019-01-11 | 中南大学 | A kind of stable state allow pressure release can detachable hydraulic anchor pole and its method for protecting support |
| CN109184765B (en) * | 2018-08-03 | 2020-06-16 | 中南大学 | Detachable hydraulic anchor rod capable of yielding and releasing energy in steady state and supporting method thereof |
| CN109763851A (en) * | 2019-03-28 | 2019-05-17 | 中国矿业大学 | Have anchor force grading forewarning system and the reciprocal plastic deformation of tool allows the anchorage and method of pressure characteristic |
| CN109763851B (en) * | 2019-03-28 | 2020-05-22 | 中国矿业大学 | Anchor with anchoring force grading early warning function and reciprocating flexible deformation yielding characteristic and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205370615U (en) | Hydraulic pressure lets pressure stock | |
| CN204552782U (en) | A kind of anchor pole is by pressure device | |
| CN205089342U (en) | Stock is warp to soft rock roadway support constant -resistance | |
| CN110905576B (en) | Hydraulic support magneto-rheological pilot operated safety valve based on magnetic control material and application thereof | |
| CN101817032B (en) | Spool material retractable feeder | |
| CN108868856A (en) | Anti- HI high impact large deformation energy-absorbing anchoring tray component and its energy-absorbing anchoring process | |
| CN110331998A (en) | A kind of adaptive pressure release type grouted anchor bar | |
| CN102808634A (en) | Hydraulic coupling anchor bolt | |
| CN203239360U (en) | Adjustable double-blocking energy-absorption scour-prevention hydraulic support | |
| CN104929663A (en) | Support mechanism capable of applying prestress, reducing pressure and unloading | |
| CN103174441B (en) | Adjustable double-resistance energy absorption anti-impact hydraulic support frame | |
| CN203905979U (en) | Novel grading yielding anchor rod | |
| CN208793023U (en) | Anti- HI high impact large deformation energy-absorbing anchoring tray component | |
| CN207696167U (en) | A kind of numerical control back-off machine material drag slot assembly elastic mechanism | |
| CN115575025B (en) | Main control pretightning force anchor rod, cable pressure sensor | |
| CN204552788U (en) | Distortion anchor device | |
| CN106051243B (en) | A kind of quick response safety valve using Nonlinear Adjustment spring | |
| CN209908543U (en) | Multistage yielding large-deformation anchor rod | |
| CN106894835B (en) | Let pressure stock | |
| CN201261882Y (en) | Yielding anchorage | |
| CN201554479U (en) | Mining anchor rod | |
| CN201714404U (en) | Large-flow safety valve | |
| CN202611733U (en) | Automatic pressurizing device used for support | |
| CN205277463U (en) | Diversely let die mould stock tray | |
| CN204458628U (en) | A kind of rotary cultivator hydraulic jack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160706 Termination date: 20170121 |