CN207131431U - Hydraulic bracket side guard plate position limiting structure - Google Patents
Hydraulic bracket side guard plate position limiting structure Download PDFInfo
- Publication number
- CN207131431U CN207131431U CN201721050650.2U CN201721050650U CN207131431U CN 207131431 U CN207131431 U CN 207131431U CN 201721050650 U CN201721050650 U CN 201721050650U CN 207131431 U CN207131431 U CN 207131431U
- Authority
- CN
- China
- Prior art keywords
- snap ring
- limited location
- location snap
- guard plate
- side guard
- 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
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000003245 coal Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 206010003497 Asphyxia Diseases 0.000 description 3
- 210000001015 abdomen Anatomy 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
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- Actuator (AREA)
Abstract
The utility model discloses a kind of hydraulic bracket side guard plate position limiting structure, set cap side is vertically provided with fixed side guard plate, opposite side is be hinged to be provided with movable side protection plate, connected between the movable side protection plate and fixed side guard plate by hydraulic jack, the cylinder rod of the hydraulic jack is provided with limiting component, the limiting component includes the first limited location snap ring and the second limited location snap ring that cylinder rod is symmetrically blocked from both sides, the end of first limited location snap ring and the second limited location snap ring is correspondingly linked together by bolt respectively, first limited location snap ring and the second limited location snap ring outer surface is parallel with cylinder rod is provided with reinforcing plate, the length of the reinforcing plate is equal with the width of limiting component.The utility model uses anchor ear form design, it is installed on the cylinder rod of back timber side guard plate hydraulic jack, the artificial stroke for reducing cylinder rod, the excessively caused side guard plate over-tilting of retraction of cylinder rod during adjustment is avoided, so as to ensure that hydraulic support stability under loading.
Description
Technical field
A kind of support side guard plate position limiting structure is the utility model is related to, belongs to hydraulic prop field.
Background technology
During comprehensive mechanical coal mining under ore deposit, hydraulic support is that one kind produces support force using fluid pressure and realized
Automatic move is set to carry out the hydraulic power unit of roof timbering and management.During coal mining, when working face inclination angle is larger, branch
Tendency component of the gravity of frame along coal seam is more than the frictional force between bracket base and bottom plate, will produce lateral movement, support
There is asphyxia by external pressure on the chest and abdomen, topple over, crooked phenomenon.
Effectively to prevent force piece asphyxia by external pressure on the chest and abdomen, askew frame, the frame that falls, used generally on working face and be segmented, be top-down
Moving manner, i.e., according to face length by working face is divided into some sections, every section by order " with pressure wipe push up " from top to bottom
Frame is moved, does not draw support to carry out limited support to upper bracket using every pars infrasegmentalis, prevents support from occurring during shifting is drawn
Glide, topple over.In order to make support integrally remain vertical with roof and floor in moving process, it is appropriate to be needed during trying to stop people from fighting each other
The inwardly angle of adjustment back timber side guard plate, to ensure that support force is stable, avoid support from collapsing, but this process needs manually
Side guard plate jack is operated to realize, and because manual control precision is not high and jack itself has in practical work process
Inertia, cause to retract excessive, finally decline side guard plate over-tilting, integral support stability.
The content of the invention
In view of the above-mentioned problems of the prior art, the purpose of this utility model is to provide a kind of process in mobile support
In can avoid side guard plate overbank, to ensure stability under loading in support moving process, the hydraulic support for avoiding support from collapsing
Side guard plate position limiting structure.
To achieve the above object, the technical solution adopted in the utility model is：A kind of hydraulic bracket side guard plate position limiting structure,
Including set cap, the set cap side is vertically provided with fixed side guard plate, and opposite side is be hinged to be provided with movable side protection plate, described
Connected between movable side protection plate and fixed side guard plate by hydraulic jack, the cylinder rod of the hydraulic jack is provided with limiting section
Part, first limited location snap ring and second limited location snap ring of the limiting component including symmetrically blocking cylinder rod from both sides, described first
The end of limited location snap ring and the second limited location snap ring is correspondingly linked together by bolt respectively, first limited location snap ring and second
Limited location snap ring outer surface is parallel with cylinder rod to be provided with reinforcing plate, and the length of the reinforcing plate is equal with the width of limiting component.
Preferably, the reinforcing plate is wide 40mm, thick 10mm steel plate.
Preferably, in order to ensure the intensity being fixedly connected, the fixed side guard plate is welded on the side of set cap.
Preferably, the inner ring diameter of first limited location snap ring and the second limited location snap ring is 10cm, race diameter 11.4cm.
Preferably, bounced back to preferably limit hydraulic jack, hydraulic check valve is provided with the hydraulic jack.
The utility model simple structure is stable, using anchor ear form design, is installed in the oil of back timber side guard plate hydraulic jack
In cylinder rod, so as to artificially reduce the stroke of cylinder rod, the excessively caused side shield of retraction of cylinder rod during adjustment is avoided
Plate over-tilting, so as to ensure that hydraulic support stability under loading, avoid support occur asphyxia by external pressure on the chest and abdomen, askew frame, fall frame phenomenon.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the right view of limiting component in Fig. 1；
In figure, 10. set caps, 11. fixation side guard plates, 12. movable side protection plates, 20. hydraulic jacks, 21. cylinder rods,
22. cylinder tube, 31. first limited location snap rings, 32. second limited location snap rings, 33. bolts, 34. reinforcing plates.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As illustrated, a kind of hydraulic bracket side guard plate position limiting structure, including set cap 10, the side of set cap 10
Vertical to be provided with fixed side guard plate 11, opposite side is be hinged to be provided with movable side protection plate 12, the movable side protection plate 12 and fixed side guard plate
Connected between 11 by hydraulic jack 20, the cylinder rod 21 of the hydraulic jack 20 is provided with limiting component, the limiting component
The first limited location snap ring 31 and the second limited location snap ring 32 including symmetrically blocking cylinder rod 21 from both sides, first limited location snap ring 31
Linked together respectively by the way that bolt 33 is corresponding with the end of the second limited location snap ring 32, first limited location snap ring 31 and second limits
The outer surface of snap ring 32 is parallel with cylinder rod 21 is provided with reinforcing plate 34, the length of the reinforcing plate 34 and the width phase of limiting component for position
Deng.
In use, the limited location snap ring 32 of the first limited location snap ring 31 and second of the present utility model is connected by bolt 33 in advance
It is stuck on the cylinder rod 21 of hydraulic jack 20, the inclination angle of the working face of coal seam according to where hydraulic support, adjusts the first limiting card
Position of the limited location snap ring 32 of ring 31 and second on cylinder rod 21, the bolt 33 at both ends is fastened, make the first limited location snap ring 31 and
Two limited location snap rings 32 embrace cylinder rod 21 from both sides；When coal-winning machine, cut coal seam needs movable hydraulic branch on inclined working face
During frame, drive cylinder bar 21 is retracted, and cylinder rod 21 drives movable side protection plate 12 to retract, and brings it about inside inclination, works as retraction
When soon being contacted to the first limited location snap ring 31, the second limited location snap ring 32 with the edge of cylinder tube 22, stop drive cylinder bar 21, now
Cylinder tube can prevent cylinder rod 21 due to the further retraction of effect of inertia by limited location snap ring, so as to control movable side protection plate
12 inclined degree, avoid influenceing the stability of integral support；Cylinder tube 22 can be to the first limiting card when being contacted with limiting component
Ring 31, the second limited location snap ring 32 apply certain impulsive force, and reinforcing plate 34 can ensure the first limited location snap ring 31, the second limiting card
Ring 32 does not deform upon when by 22 impact extruded of cylinder tube.
Preferably, the reinforcing plate 34 is wide 40mm, thick 10mm steel plate.Using such size steel plate it is spacing by
Support strength can be ensured during power.
Preferably, in order to ensure the intensity being fixedly connected, the fixed side guard plate 11 is welded on the side of set cap 10.
Preferably, the inner ring diameter of the limited location snap ring 32 of the first limited location snap ring 31 and second is 10cm, race diameter
11.4cm。
Bounced back to preferably limit hydraulic jack 20, hydraulic check valve is provided with the hydraulic jack 20.Hydraulic check valve energy
Enough lockings when cylinder rod 21 is retracted into default length, so as to limit the stroke of cylinder rod 21 from inside.
Claims (5)
1. a kind of hydraulic bracket side guard plate position limiting structure, including set cap (10), set cap (10) side is vertically set
Have a fixed side guard plate (11), opposite side is be hinged to be provided with movable side protection plate (12), it is characterised in that the movable side protection plate (12) and
Connected between fixed side guard plate (11) by hydraulic jack (20), the cylinder rod (21) of the hydraulic jack (20) is provided with spacing
Part, the limiting component include the first limited location snap ring (31) and the second limited location snap ring that cylinder rod (21) is symmetrically blocked from both sides
(32), the end of first limited location snap ring (31) and the second limited location snap ring (32) is connected to one by the way that bolt (33) is corresponding respectively
Rise, first limited location snap ring (31) and the second limited location snap ring (32) outer surface is parallel with cylinder rod (21) is provided with reinforcing plate
(34), the length of the reinforcing plate (34) is equal with the width of limiting component.
2. hydraulic bracket side guard plate position limiting structure according to claim 1, it is characterised in that the reinforcing plate (34) is width
40mm, thick 10mm steel plate.
3. hydraulic bracket side guard plate position limiting structure according to claim 1, it is characterised in that the fixed side guard plate (11)
It is welded on set cap (10) side.
4. hydraulic bracket side guard plate position limiting structure according to claim 1, it is characterised in that first limited location snap ring
(31) and the inner ring diameter of the second limited location snap ring (32) is 10cm, race diameter 11.4cm.
5. hydraulic bracket side guard plate position limiting structure according to claim 1, it is characterised in that in the hydraulic jack (20)
Provided with hydraulic check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721050650.2U CN207131431U (en) | 2017-08-22 | 2017-08-22 | Hydraulic bracket side guard plate position limiting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721050650.2U CN207131431U (en) | 2017-08-22 | 2017-08-22 | Hydraulic bracket side guard plate position limiting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207131431U true CN207131431U (en) | 2018-03-23 |
Family
ID=61635798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721050650.2U Expired - Fee Related CN207131431U (en) | 2017-08-22 | 2017-08-22 | Hydraulic bracket side guard plate position limiting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207131431U (en) |
-
2017
- 2017-08-22 CN CN201721050650.2U patent/CN207131431U/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: 20180323 |