CN2702055Y - Stabilizing mechanism for telescopic rod of hydraulic support - Google Patents
Stabilizing mechanism for telescopic rod of hydraulic support Download PDFInfo
- Publication number
- CN2702055Y CN2702055Y CN 200420093523 CN200420093523U CN2702055Y CN 2702055 Y CN2702055 Y CN 2702055Y CN 200420093523 CN200420093523 CN 200420093523 CN 200420093523 U CN200420093523 U CN 200420093523U CN 2702055 Y CN2702055 Y CN 2702055Y
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- telescopic rod
- stabilizing mechanism
- rod stabilizing
- support
- expansion link
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Abstract
The utility model provides a telescopic rod stabilizing mechanism for the hydraulic support, and relates to the hydraulic mechanism stabilizing mechanism for the hydraulic support of the coal mine comprehensive mining working face. The utility model is composed of one telescopic rod or a pair of telescopic rods which are vertically provided between the top beam and the base. The telescopic rods are used for bearing various bending moment and torques of the entire top beam corresponding to the base. The single-stage or double stage telescopic rod stabilizing mechanism is determined to adopt based on the height adjusting range of the support. The utility model has the advantages that the top beam is vertically lifted; the structure is simple; the weight is light, and the space occupation is small, arranges the hydraulic column on the middle part of the telescopic rod mechanism based on the requirement, further clamps the space of the support working mechanism, and forms the special type support, such as the compound telescopic rod 3 of the hydraulic support.
Description
Technical field
The utility model relates to the hydraulic support stabilizing mechanism that uses on a kind of coal mine fully-mechanized mining working hydraulic support.
Background technology
The hydraulic support stabilizing mechanism mainly contains following three kinds in the world at present: (1) quadric chain.Adopt support back timber when lifting of this mechanism to be the track lifting of approximate vertical line (lemniscate), beam-ends is very little apart from changing, and helps the supporting to top board; And it is very big to make support heighten scope, therefore is widely used on various types of supports.Its shortcoming is that four connecting rods are stressed big, and stressed (load, moment of flexure, moment of torsion) rod member is many, and the process of transmitting power is long, feasiblely is used to keep support to stablize the ratio of shared weight support frame very big, uneconomical.Therefore just have the scholar to propose to replace quadric chain many years ago with perhapsing or take to alleviate the stressed measure of quadric chain, and quadric chain to take the support usefull space big, make that to use the time space layout on the specific use support very difficult.(2) single hinge mechanism.The caving shield lower end of supporting top beam is connected with base list dumpling, and pillar is by the indirect supporting top beam of caving shield, and stressed member simple in structure is few, and back timber was also done garden arc trajectory motion with the caving shield end when shortcoming was the support lifting, makes beam-ends bigger apart from changing.Because the increasing that variable quantity is heightened scope with support increases rapidly, the scheduling scope that therefore defines support is smaller.Be mainly used on the early stage shield, also once be used for high-order sublevel caving hydrau lic support.(3) single wobbling pole mechanism.Between the back timber of support and base, couple together with a connecting rod (also claiming fork).Garden arc trajectory motion is done around the hinge of fork on base in back timber and fork upper end during the support lifting, also can make the back timber swing.With single dumpling point mechanism difference be that fork is only controlled the motion of back timber and the load of directly not bearing support, simplified the force-bearing situation of fork.The swing-bar mechanism position is provided with more flexible, but fork length often will be subjected to the restriction of locus, therefore reach certain support heighten than situation under, during the support lifting beam-ends apart from also bigger variation taking place, unfavorable to roof timbering.This outside lever itself and motion will take certain working space, are unfavorable for that the space of support is arranged.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of above-mentioned prior art, the hydraulic support telescopic rod stabilizing mechanism (hereinafter to be referred as telescopic rod stabilizing mechanism) that provide a kind of and can make the set cap vertical lift, the beam-ends distance is constant, simple in structure, stressed member is few, alleviates weight support frame, takes up room little.
The purpose of this utility model can reach by following measure: between the base and back timber of support, at bracket base center line or center line both sides antimere, in the requirement of the upper face and the base plate of back timber, the single telescopic rod stabilizing mechanism be made up of single expansion link or the double-telescopic rod stabilizing mechanism of being made up of two identical expansion links are set by the axis normal of telescopic rod stabilizing mechanism.Expansion link is made up of with the transverse shape parameter size one group of tubular material that can connect together mutually that matches coaxial.It is to adopt single-stage expansion link (being made up of upper and lower two-stage sleeve pipe) that the size of heightening scope according to support decides, or twin-stage expansion link (forming) by the three grades of sleeve pipes in upper, middle and lower, the diameter of sleeve pipes at different levels (or length of side), wall thickness calculate definite according to comprehensive strength; Expansion link diminishes from bottom to up step by step; Utilize the gap guiding between the sleeve pipes at different levels, and leave rational minimum superposition section; Last sleeve pipe and back timber hinged (unidirectional hinged or universal hinging), setting of casing is welded on the bracket base, generally will add weldering junction plate, reinforcing rib etc., forms single telescopic rod stabilizing mechanism or double-telescopic rod stabilizing mechanism thus.There are garden shape, rectangle (comprising square), oval, triangle or other combinatorial geometry figure in the cross section of expansion link sleeve pipe.Garden shape sleeve pipe is the simplest, and optional ready-made hot rolling or solid drawn tube are made.But Dan Zuyuan section expansion link can not bear the horizontal moment of torsion of the relative base of back timber.Can adopt the circle cross section double-telescopic rod stabilizing mechanism for this reason or between back timber and low seat, set up flexible two connection rod set, allow it bear horizontal moment of torsion.
Can bear the horizontal moment of torsion of set cap to base, what can have enough bending resistance torsional strengths again is the telescopic rod stabilizing mechanism of rectangular cross section, can be moment of flexure and moment of torsion that the support vertical and horizontal provide different numerical value.And sleeve pipe can form with the steel plate assembly welding about it, easily what processing.
Another big characteristics of this class telescopic rod stabilizing mechanism, the advantage that also is it is to increase the middle vertical space of telescopic rod stabilizing mechanism, hydraulic vertical prop (hereinafter to be referred as column) can be located at when needing in the expansion link and (leave the aperture of turnover fluid pressure line at the expansion link upper and lower side).Form the flexible stabilizing mechanism of combined type, the so further space occupied of compression columns and expansion link significantly increases the pedestrian and the working space of hydraulic support inside.And can form hydraulic support with unique supported function, and as combined type expansion link three post hydraulic supports, combined type expansion link 4 post hydraulic supports.
The shortcoming of telescopic rod stabilizing mechanism is that stroke is less, and its underpart, position that telescopic rod stabilizing mechanism is set on bracket base is the support thrust gear that can not hide sometimes.Can adopt connection method in the beam, the connecting portion of soon going up sleeve pipe and back timber is located at back timber inside for this reason.If support requires the bigger scope of heightening can adopt the twin-stage telescopic rod stabilizing mechanism, the available wire rope pulling method of lifting of middle rank sleeve pipe: establish a pallet (the most handy seam with pallet spacing and be welded in sleeve bottom) at the inner bottom part of intermediate sleeve pipe, the wire rope of a certain-length is fixed at the pallet middle part, the wire rope upper end is connected on the connection bearing pin at expansion link top, also can be connected with the fixing pallet of last inside pipe casing.Treat that sleeve pipe promotes the back wire rope that puts in place and drives intermediate sleeve pipe lifting.
Fit clearance between the telescopic tube can be with reference to the fit tolerance of H11/a11.Upward, processing methods such as the practicable Zincing passivation of external surface of intermediate sleeve pipe or blackout.
Single telescopic rod stabilizing mechanism and double-telescopic rod stabilizing mechanism have been arranged, the structural shape of support is further developed, formed single telescopic rod stabilizing mechanism 2 post hydraulic supports (adding balance jack), double-telescopic rod stabilizing mechanism 3 post hydraulic supports etc.
The utility model compared with prior art has following advantage:
1, adopt the support of telescopic rod stabilizing mechanism, but back timber with respect to the base vertical lift, beam-ends is apart from remaining unchanged substantially, and is very favourable to roof timbering;
2, back timber is all born by expansion link mechanism with respect to the various moments of flexure and the moment of torsion of base, and is directly passed to base by expansion link, and stressed member significantly reduces, and helps alleviating the weight and the cost of support;
3, the telescopic rod stabilizing mechanism position that takes up room is less, and position shape invariance in the motion process, helps the layout and the utilization of rack space position;
4, if hydraulic vertical prop is located at expansion link inside, can further compress taking up room of hydraulic vertical prop and expansion link, significantly increase inner pedestrian of hydraulic support and working space, and can be formed with the hydraulic support of unique support function, as three post hydraulic supports;
5, because the expansion link structure is very simple, be convenient to telescopic rod stabilizing mechanism series shaped steel according to working resistance of support and support height Series Design manufacturing (hot rolling or cold-drawn) typing, select for use during in order to support Design and manufacturing.
Description of drawings
Fig. 1 list telescopic rod stabilizing mechanism contoured cradle figure;
The longitudinal sectional view of single-stage telescopic rod stabilizing mechanism and twin-stage telescopic rod stabilizing mechanism on Fig. 2 (a, b) support;
The various cross-sectional profile of Fig. 3 (a) and (b), (c), (d), (e), (f) expansion link mechanism;
Fig. 4 (a) is (b) with the single-stage and the twin-stage rectangular cross section expansion link sectional view of processes such as welding;
Fig. 5 (a) double-telescopic rod stabilizing mechanism 3 post hydraulic supports; (b) double-telescopic rod stabilizing mechanism 4 post hydraulic supports;
Fig. 6 (a) combined type expansion link 3 post hydraulic supports; (b) combined type double-telescopic rod 4 post hydraulic supports.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
1 is the single-stage telescopic rod stabilizing mechanism of being located at rectangular cross section between the support rear pillar among Fig. 1.The top of expansion link mechanism is last sleeve pipe, last sleeve pipe upper end and back timber beam ear seat down with bearing pin employing beam outward connection method be connected; The bottom of expansion link mechanism is a setting of casing, and its upper end is socketed in the lower end of sleeve pipe, cased bottom and bracket base welding.
Fig. 2 is the structural representation of telescopic rod stabilizing mechanism.Telescopic rod stabilizing mechanism is by coaxial same transverse shape, and the parameter size one group of tubular material that can connect together mutually that matches is formed.
Fig. 2 (a) is the structural representation of single-stage telescopic rod stabilizing mechanism.The top of telescopic rod stabilizing mechanism is to go up sleeve pipe 2, and its upper end is connected with connection method in the beam with back timber with bearing pin 7; The 4th, the setting of casing of expansion link mechanism, the lower end socket of its top and last sleeve pipe 2, its underpart and the welding of bracket bottom seat-box.
Fig. 2 (b) is the structural representation of twin-stage telescopic rod stabilizing mechanism.Top is to go up sleeve pipe 2, and the middle part is a middle sleeve 3, and the bottom is a setting of casing 4, last sleeve pipe 2 tops adopt the interior connection method of beam to be connected with bearing pin 7 and back timber, its lower end and middle sleeve 3 upper end sockets, the upper end socket of the lower end of middle sleeve 3 and setting of casing 4, the bottom of setting of casing 4 and the welding of bracket bottom seat-box.Be fixed with pallet 5 in the bottom of middle sleeve 3, be fixed with wire rope 6 at pallet 5 middle parts, the upper end of wire rope is connected with bearing pin 7, because wire rope is a regular length, after last sleeve pipe stretches out and puts in place, can drives middle sleeve 3 and stretch out.
Above-mentioned telescopic rod stabilizing mechanism can adopt different transverse shapes such as garden shape, rectangle (comprising square), oval, triangle or other combinatorial geometry figure, sees Fig. 3.
Fig. 4 represents the rectangular cross section telescopic rod stabilizing mechanism with welding method processing; (a) be the single-stage expansion link; (b) be the twin-stage expansion link; A-A is the transverse sectional view of sleeve pipe; For in increasing, the intensity of setting of casing oral area, can add weldering reinforcing ring 8; Last inside pipe casing can add weldering gusset 9.
Fig. 5 (a) is located at support rear column both sides with double-telescopic rod stabilizing mechanism, forms double-telescopic rod stabilizing mechanism 3 post hydraulic supports; (b) double-telescopic rod stabilizing mechanism is located at 2 rear column front portions, forms double-telescopic rod stabilizing mechanism 4 post hydraulic supports.
Fig. 6 (a) is located at single telescopic rod stabilizing mechanism inside with rear column, forms combined type expansion link 3 post hydraulic supports; (b) two rear columns are located at double-telescopic rod stabilizing mechanism inside, form combined type double-telescopic rod 4 post hydraulic supports.
Claims (6)
1. hydraulic support telescopic rod stabilizing mechanism, by between the back timber and base of support, on the center line of bracket base or the antimere of center line both sides, by the expansion link axis normal in back timber upper face and base plate setting one group or two groups of expansion links and single telescopic rod stabilizing mechanism or the double-telescopic rod stabilizing mechanism formed; It is characterized in that the expansion link of telescopic rod stabilizing mechanism is made up of with the transverse shape parameter size one group of tubular material that can connect together mutually that matches coaxial; Expansion link diminishes from bottom to up step by step; Support is heightened the single-stage telescopic rod stabilizing mechanism that the little employing of scope is made up of two-stage sleeve pipe up and down; Support is heightened the twin-stage telescopic rod stabilizing mechanism that the big employing of scope is made up of the three grades of sleeve pipes in upper, middle and lower; Unidirectional or the universal hinging of last sleeve pipe and set cap is carried out in the beam or beam connects outward; Setting of casing is welded on the bracket base.
2. hydraulic support telescopic rod stabilizing mechanism according to claim 1 is characterized in that, the plane of structure shape of expansion link sleeve pipe has circle, square, rectangle, Long Circle, triangle, T-shape, " worker " font or other combinatorial geometry figure.
3. hydraulic support telescopic rod stabilizing mechanism according to claim 1 and 2 is characterized in that, the expansion link sleeve pipes at different levels in rectangle (comprising square) cross section form with the steel plate assembly welding, in, setting of casing weldering reinforcing ring suitable for reading (8); Last inside pipe casing weldering gusset (9).
4. hydraulic support telescopic rod stabilizing mechanism according to claim 1 and 2 is characterized in that, when the rack space layout needs, hydraulic vertical prop is arranged on expansion link mechanism inside, forms combined type expansion link 3 post hydraulic supports.
5. according to claim 1 or 2 or 3 described hydraulic support telescopic rod stabilizing mechanisms, it is characterized in that, arrange when needing in rack space, two identical hydraulic vertical props are separately positioned on the middle part of two expansion links of double-telescopic rod stabilizing mechanism, form combined type double-telescopic rod 4 post hydraulic supports.
6. hydraulic support telescopic rod stabilizing mechanism according to claim 1 and 2 is characterized in that, between set cap and base, establishes one group of circle cross section telescopic rod stabilizing mechanism and establishes one two connection rod set and combine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420093523 CN2702055Y (en) | 2003-12-31 | 2004-09-13 | Stabilizing mechanism for telescopic rod of hydraulic support |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200320104259.8 | 2003-12-31 | ||
| CN200320104259 | 2003-12-31 | ||
| CN 200420093523 CN2702055Y (en) | 2003-12-31 | 2004-09-13 | Stabilizing mechanism for telescopic rod of hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2702055Y true CN2702055Y (en) | 2005-05-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420093523 Expired - Fee Related CN2702055Y (en) | 2003-12-31 | 2004-09-13 | Stabilizing mechanism for telescopic rod of hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2702055Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612736A (en) * | 2015-01-23 | 2015-05-13 | 柳立新 | Coal mining support with crossed supporting rods |
-
2004
- 2004-09-13 CN CN 200420093523 patent/CN2702055Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104612736A (en) * | 2015-01-23 | 2015-05-13 | 柳立新 | Coal mining support with crossed supporting rods |
| CN104612736B (en) * | 2015-01-23 | 2017-04-05 | 柳立新 | It is provided with the coal mining support of cross support bar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050525 Termination date: 20091013 |