CN204703932U - A kind of hydraulic prop - Google Patents
A kind of hydraulic prop Download PDFInfo
- Publication number
- CN204703932U CN204703932U CN201520130062.4U CN201520130062U CN204703932U CN 204703932 U CN204703932 U CN 204703932U CN 201520130062 U CN201520130062 U CN 201520130062U CN 204703932 U CN204703932 U CN 204703932U
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- post
- moving spring
- hydraulic prop
- cap assembly
- 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
- 210000003746 feather Anatomy 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- VFYPSWGDJSPEQI-UHFFFAOYSA-N [B].[P].[Ni] Chemical compound [B].[P].[Ni] VFYPSWGDJSPEQI-UHFFFAOYSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Safety Valves (AREA)
Abstract
The utility model is a kind of hydraulic prop, comprise: cap assembly, post alive, cylinder body, back-moving spring, three-phase valve group, described three-phase valve group is located on described cylinder body, three-phase valve group comprises one way valve, feather valve, safety valve, described back-moving spring is symmetricly set in cylinder body both sides, described back-moving spring one end is fixed on the bottom of cap assembly through retainer ring, the other end is fixed on the upper end of described base by hook, adopt the conical surface to compress between described cap assembly and described post alive to connect, back-moving spring is symmetricly set in cylinder body both sides by the utility model, replace that traditional to be located at post alive inner, back-moving spring does not need and liquid comes into contact, not easily corrosion, and spring breaking down is easy to observe and change.
Description
Technical field
The utility model relates to a kind of technical field of hydraulic equipment, particularly relates to a kind of hydraulic prop.
Background technology
In modern mine, hydraulic prop is generally adopted to carry out roof timbering at present, wherein hydraulic prop accounts for suitable vast scale, due to hydraulic prop, to have volume little, supporting is reliable, the advantages such as O&M is all very convenient are widely used, both can be used for the roof timbering of standard machinery coal-face, can be used for again the end support of fully-mechanized mining working, and the temporary lining at each local fall place of work plane.Existing hydraulic prop is different according to feed liquid way, can be divided into internal-injection type and external poured two kinds.Former structure is complicated, and quality is large, supports setting prop speed slow, therefore uses general not as the latter.As the hydraulic prop that application is wider, current Problems existing is when carrying out the aspects such as tunnel, stope, temporary lining, and because environment and supporting quality are all poor, load diatibution is uneven.The fracture of top board is caused in the unstability of working environment lower roof plate and supporting plane; the shock loading of moment often can bring damage to pillar; particularly very large test is brought to the seal point, weld etc. of the configuration aspects of hydraulic prop own; have a strong impact on service behaviour, maintenance cost also increases greatly.
From configuration aspects and job analysis, the fluid injection chamber of the hydraulic prop used at present is post inner chamber of living, pillar needs to inject a large amount of hydraulic fluids and post of living could be risen, need again a large amount of hydraulic fluid of excretion to decline during decline, complicated structure, setting prop speed is slow, back-moving spring in pillar is long-term and liquid comes into contact in use, easy corrosion, thus the application life shortening hydraulic prop, and not easily observe in post internal damage situation of living and keep in repair.
Summary of the invention
The utility model is intended to solve the deficiencies in the prior art, and provides for ease of maintenaince a kind of and the hydraulic prop of setting prop speed.
A kind of hydraulic prop, comprise cylinder body, be matched with the post alive in cylinder body, the cap assembly and the back-moving spring that are placed in post top alive is characterized in that described back-moving spring is arranged at cylinder body both sides symmetrically.
Described a kind of hydraulic prop, it is characterized in that cylinder body being provided with three-phase valve group, base is had in cylinder base, the middle below of described post alive is stretched in described cylinder body, living, post bottom is provided with limited step, described cylinder body internal fixtion has fairlead, two groups of guide rings are provided with in fairlead, hollow plunger is provided with in described post alive, be fixed on bottom described hollow plunger on base, described back-moving spring one end is fixed on the bottom of cap assembly through retainer ring, the other end is fixed on the upper end of described base by hook.
Described hydraulic prop, is characterized in that described cap assembly comprises top cover, hinge cap, hinge cap spring, and described three-phase valve group comprises one way valve, feather valve, safety valve, adopts the conical surface to compress and connect between described cap assembly and described post alive.
Described hydraulic prop, is characterized in that described base is arc bottom base.
Described hydraulic prop, is characterized in that described post alive and described cylinder body have nickel phosphorus boron coating, and post thickness of coating of living is 0.035mm ~ 0.045mm, and inner surface of cylinder block thickness of coating is 0.025mm ~ 0.003mm.
The beneficial effects of the utility model are: back-moving spring is symmetricly set in cylinder body both sides by the utility model, replace that traditional to be located at post alive inner, and back-moving spring does not need and liquid comes into contact, not easily corrosion, and spring breaking down is easy to observe and change.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-cap assembly; 2-post alive; 3-cylinder body; 4-fairlead; 5-limited step; 6-back-moving spring; 7-three-phase valve group; 8-one way valve; 9-feather valve; 10-safety valve; 11-base; 12-hollow plunger.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Shown in Fig. 1, hydraulic prop of the present utility model, the post alive 2 having cap assembly 1 and adopt with it conical surface to be fixed, the cylinder body 3 mated with post 2 of living, is provided with back-moving spring 6 in cylinder body 3 bilateral symmetry.Three-phase valve group 7 is arranged on cylinder body 3, is base 11 in cylinder body 3 bottom, and in post 2 of living, coupling has hollow plunger 12, and described hollow plunger 12 bottom is fixing on the pedestal 11.
Three-phase valve group 7 includes one way valve 8, feather valve 9 and safety valve 10, cap assembly 1 is positioned at described post alive 2 top, the middle below of post 2 alive is stretched in described cylinder body 3, post 2 bottom alive is provided with limited step 5, the middle and upper part of described cylinder body 3 is fixed with fairlead 4, two groups of guide rings are provided with in fairlead 4, described base 11 is arranged on bottom described cylinder body 3, hollow plunger 12 is provided with in described post alive 2, be fixed on bottom described hollow plunger 12 on described base 11, described back-moving spring 6 is symmetricly set in cylinder body 3 both sides, described back-moving spring 6 one end is fixed on the bottom of cap assembly through retainer ring, the other end is fixed on the upper end of described base 11 by hook, adopt the conical surface to compress between described cap assembly 1 and described post alive 2 to connect.Described cap assembly 1 comprises top cover, hinge cap, hinge cap spring.Described base 11 is spherical base.Cap assembly 1 and described base 11 adopt die forging method for producing to make.Post 2 of living adopts nickel phosphorus boron coating with described cylinder body 3, and post 2 thickness of coating of living is: 0.35mm ~ 0.045mm, cylinder body 3 inner surface thickness of coating is 0.025mm ~ 0.003mm.
Claims (5)
1. a hydraulic prop, comprises cylinder body (3), is matched with the post alive (2) in cylinder body (3), and the cap assembly (1) and the back-moving spring (6) that are placed in post top alive is characterized in that described back-moving spring (6) is arranged at cylinder body (3) both sides symmetrically.
2. a kind of hydraulic prop according to claim 1, it is characterized in that cylinder body (3) is provided with three-phase valve group (7), base (11) is had in cylinder body (3) bottom, the middle below of described post alive (2) is stretched in described cylinder body (3), living, post (2) bottom is provided with limited step (5), described cylinder body (3) internal fixtion has fairlead (4), two groups of guide rings are provided with in fairlead (4), hollow plunger (12) is provided with in described post alive (2), described hollow plunger (12) bottom is fixed on base (11), described back-moving spring (6) one end is fixed on the bottom of cap assembly through retainer ring, the other end is fixed on the upper end of described base (11) by hook.
3. according to the hydraulic prop described in claim 2, it is characterized in that described cap assembly (1) comprises top cover, hinge cap, hinge cap spring, described three-phase valve group (7) comprises one way valve (8), feather valve (9), safety valve (10), adopts the conical surface to compress and connect between described cap assembly (1) and described post alive (2).
4., according to the hydraulic prop described in claim 2, it is characterized in that described base (11) is arc bottom base.
5. according to the hydraulic prop described in claim 1, it is characterized in that described post alive (2) and described cylinder body (3) have nickel phosphorus boron coating, post (2) thickness of coating of living is 0.035mm ~ 0.045mm, and cylinder body (3) inner surface thickness of coating is 0.025mm ~ 0.003mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520130062.4U CN204703932U (en) | 2015-03-08 | 2015-03-08 | A kind of hydraulic prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520130062.4U CN204703932U (en) | 2015-03-08 | 2015-03-08 | A kind of hydraulic prop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204703932U true CN204703932U (en) | 2015-10-14 |
Family
ID=54283555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520130062.4U Expired - Fee Related CN204703932U (en) | 2015-03-08 | 2015-03-08 | A kind of hydraulic prop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204703932U (en) |
-
2015
- 2015-03-08 CN CN201520130062.4U patent/CN204703932U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205679468U (en) | A kind of anchor rod drawing test hydraulic support device | |
| CN205928463U (en) | Hydraulic pressure pin pulling device | |
| CN205207320U (en) | Single piston rod pneumatic cylinder | |
| CN204703932U (en) | A kind of hydraulic prop | |
| CN204694519U (en) | A kind of cement-base composite material sample preparation mold | |
| CN111365049A (en) | Hydraulic pallet for mine constant resistance anchor rod (cable) | |
| CN204082179U (en) | Light-duty suspension type of force plunger hydraulic prop | |
| CN204200760U (en) | The piling oil cylinder of static pile press | |
| RU139963U1 (en) | DEVICE FOR EXTENSION OF STUDS WHEN SEALING AND SEALING THE COVERS OF THE HEADER RESERVOIRS | |
| CN204269356U (en) | Column dynamic testing equipment | |
| CN203531928U (en) | Face-to-face extensible individual hydraulic supporting column for mines | |
| CN207921021U (en) | A kind of tamping car track lifting oil cylinder | |
| CN101463728A (en) | Hoisting stand for mining | |
| CN206544886U (en) | Bridge jacking jack device | |
| CN204666446U (en) | A kind of pilot system of large-tonnage shark jaw/gear checking bollard | |
| CN203547765U (en) | Hydraulic support stand column for coal mine | |
| CN101509384B (en) | Umbrella stent temporary support device | |
| CN212202095U (en) | Hydraulic tray for mining constant-resistance anchor rod and anchor cable | |
| CN104833491A (en) | Hydraulic support pushing frame composite external loading test device | |
| CN204900403U (en) | Novel two sections complete free hydro -cylinders of buffering formula fork truck | |
| CN202446859U (en) | Connecting structure for fixing dynamic axial compression column | |
| CN201568062U (en) | Novel double-telescopic-single-body hydraulic prop | |
| CN203561558U (en) | Oil cylinder force applying device of shield segment testing machine | |
| CN219469383U (en) | Improved tension automatic balancing suspension device | |
| CN208575466U (en) | More specification hydraulic cylinder apparatus for examination and repair |
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: 20151014 |