CN202914112U - Telescopic protective mesh for hydraulic support - Google Patents
Telescopic protective mesh for hydraulic support Download PDFInfo
- Publication number
- CN202914112U CN202914112U CN 201220582621 CN201220582621U CN202914112U CN 202914112 U CN202914112 U CN 202914112U CN 201220582621 CN201220582621 CN 201220582621 CN 201220582621 U CN201220582621 U CN 201220582621U CN 202914112 U CN202914112 U CN 202914112U
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- hydraulic support
- protective
- mesh
- screen frame
- protecting wire
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Abstract
The utility model relates to a telescopic protective mesh for a hydraulic support. The telescopic protective mesh for the hydraulic support comprises a lower mesh frame which is fixedly connected with a vertical column of the hydraulic support through a fixing device. Lower mesh sheets are arranged in the lower mesh frame. Sliding rails are fixed on two sides of the lower mesh frame. An upper mesh frame capable of moving up and down along the sliding rails is fixed in the sliding rails, and upper mesh sheets are arranged in the upper mesh frame. Connecting devices flexibly connected with a top beam of the hydraulic support are arranged on the top of the upper mesh frame or two sides close to the top of the upper mesh frame. According to the telescopic protective mesh for the hydraulic support, two protective meshes, namely an upper protective mesh and a lower protective mesh which can move relative to each other are adopted, and a function that the heights of the protective meshes is automatically adjusted along with height change of the support is achieved. No manual power is needed to adjust the heights of the protective meshes, the protective meshes can rise and drop along with the movement of the support, and in addition, the condition that mining height is raised and protection is insufficient and personal injury may be caused and the condition that mining height is reduced and the protective meshes are not reduced timely so that deformation and damage of the protective meshes may be caused are avoided. The telescopic protective mesh for the hydraulic support is simple in structure, economical and practical.
Description
Technical field
The utility model relates to the scalable protecting wire net of a kind of hydraulic support; it is a kind of protector; being the safety device in a kind of mine, is a kind of being installed on the hydraulic support and between the hydraulic support, is not subjected to the device of splash and falling object injury in order to the protection personnel.
Background technology
Hydraulic support is one of three large dynamoelectric equipments of stope working surface of coal mines, along with the construction of high-yield and high-efficiency mine and the development of coal winning technology, especially large mining height, the application of overlarge mining height hydraulic support, when coal-winning machine coal cutting speed, the wall caving of larger height often appears in rib, the wall caving coal is directly swung to hydraulic support sometimes, particularly in periodic weighting period, rib is subject to old top and presses, the rib pressurized breaks suddenly, can moment with coal cinder to the impelling of old man's direction out, coal machine driver, the personnel that timberer etc. work between hydraulic support are very easy to be hit injured.
Existing hydraulic support protecting wire net highly divides high, medium and low third gear according to protection, highly selects the protective screening of corresponding height according to the rising of hydraulic support, is fixed by bolts on the hydraulic support.There are some problems in the protective screening of this level altitude:
The height of hydraulic support constantly changes in the coal mining process, the work plane mining height need in time be adjusted according to the ocurrence of coal seam situation, and when mining height strengthened, hydraulic support raise, at this moment need in time to change highly higher protecting wire net, otherwise can't play due protection effect.And when mining height reduced, support reduced, and at this moment need protecting wire net is replaced by highly lower protecting wire net, otherwise back timber was very easy to the protecting wire net compressive strain in the process of trying to stop people from fighting each other, and impact is used.
Breaking down at the support safety valve causes support from falling in the situation, because the protecting wire net height is fixing non deformable, certainly falling of support can cause protecting wire net to damage the protecting wire net compressive strain, loses protective action.Because the protecting wire net distortion also can cause the difficulty of dismounting, has increased the work plane hazards.
Summary of the invention
In order to overcome the problem of prior art, the utility model proposes the scalable protecting wire net of a kind of hydraulic support.The height of described protecting wire net can be flexible freely along with the height of hydraulic support, need not according to artificial the changing of hydraulic support again, also avoided since hydraulic support from falling the protecting wire net damage that causes.
The purpose of this utility model is achieved in that the scalable protecting wire net of a kind of hydraulic support, comprise: the lower screen frame that is fixedly connected with hydraulic support column by fastening devices, be provided with lower net plate in the described lower screen frame, described lower screen frame both sides are fixed with slide rail, be provided with the upper screen frame that can move up and down along slide rail in the described slide rail, be provided with upper net plate in the described upper screen frame, the top of described upper screen frame or be provided with the linkage that flexibly connects with hydraulic support top beam near the both sides at top.
The beneficial effect that the utility model produces is: the utility model adopt can relative motion up and down two protecting wire nets, realize that the protecting wire net height changes self-adjusting function with support height.Described protecting wire net need not the manual adjustment height, and the automatically lifting with the action of support of protecting wire net has avoided mining height to raise and protection is not enough may cause personal injury and mining height to reduce and protecting wire net does not in time reduce the situation that protecting wire net may cause the protecting wire net deformed damaged.Described protective net structure is simple, and is economical and practical.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of embodiment one described protecting wire net of the present utility model.
The specific embodiment
Embodiment one:
Present embodiment is the scalable protecting wire net of a kind of hydraulic support, as shown in Figure 1.Present embodiment comprises: the lower screen frame 6 that is fixedly connected with hydraulic support column by fastening devices 7, be provided with lower net plate 5 in the described lower screen frame, described lower screen frame both sides are fixed with slide rail 4, be provided with the upper screen frame 2 that can move up and down along slide rail in the described slide rail, be provided with upper net plate 3 in the described upper screen frame, the top of described upper screen frame or be provided with the linkage 1 that flexibly connects with hydraulic support top beam near the both sides at top.
What describe among Fig. 1 is the states that two upper and lower screen frames separate, in the time of on being installed in hydraulic support, under the upper insertion in the slide rail of screen frame.To be upper screen frame rise or descend with the back timber of hydraulic support when hydraulic support rises or descends, and moves such as the direction of arrow A among Fig. 1.
The described protecting wire net of present embodiment is comprised of two protecting wire nets up and down, and the screen frame of two protecting wire nets all can use angle steel or other similar firm materials, with welding or other modes that are fixedly connected with, surrounds rectangular frame.The width of screen frame is identical with traditional protecting wire net.The height of lower screen frame should be lower than the minimum adjustable height of hydraulic support slightly, and the height of upper screen frame should be chosen as the minimum adjustable height that is slightly larger than hydraulic support and the distance between the maximum rising height.Like this, when hydraulic support was reduced to extreme lower position, upper and lower screen frame overlaped, and adapted to the minimum altitude of hydraulic support.And hydraulic support is when being elevated to maximum height, and upper and lower screen frame is taken on respectively up and down two-part protection of hydraulic support, effectively prevent from splashing or the coal cinder of avalanche to personnel's injury.The middle fixed network sheet of framework, described net sheet can be the screen cloth of commonly using.
Slide rail is fixed on the lower screen frame, and slipper is connected with upper screen frame, makes upper and lower screen frame can be similar to drawer and relatively moves like that.Described slide rail also can have the multiple side of selecting.For example: can use dedicated classes like the slide rail of drawer type, also can form chute simply at two angle steel of the both sides of lower screen frame welding, screen frame can be slided in chute, produce the effect that is similar to slide rail.
The fastening devices that lower screen frame is fixedly connected with hydraulic prop can have multiple choices.For example: the column at hydraulic support punches, and uses bolt by the fixed connecting piece of sheet lower screen frame to be fixed on the column of hydraulic support.Also can use clip directly to bind round on the column of hydraulic support, lock by bolt and the lower screen frame of clip again.
The linkage that upper screen frame is connected with hydraulic support top beam should be flexible connection, and upper screen frame produces interference with slide rail when avoiding the hydraulic support lifting.Described linkage also can have multiple choices, for example: use flexible hinge.Simple method is to use one section rope chain.One end of rope chain is intrinsic on upper screen frame with pin or bolt, and the other end hangs on the hoisting ring of hydraulic support top beam.The rope chain is flexible, and all degree of freedom except rising and descending are provided, and installs very conveniently, and on-the-spot fitting operation personnel feel very convenient.The rope chain also can replace with solid nylon rope, can play same effect.
Embodiment two:
Present embodiment is to implement one improvement, be embodiment about the refinement of fastening devices, the described fastening devices of present embodiment is clip.
Described clip is trapped among on the column of hydraulic prop, uses bolton, and this bolt also is through in the fixing hole of underframe simultaneously, when bolt-locking, underframe together is locked on the clip, has fixed underframe.
Embodiment three:
Present embodiment is the improvement of embodiment one, be embodiment one about the refinement of slide rail, described slide rail is the angle steel that is welded on lower screen frame both sides.
The angle steel of underframe both sides welding forms chute with underframe, and upper frame can insert in the chute of underframe, and upper frame can slide up and down in chute, and formation is simple and easy to the slide rail of usefulness.
Embodiment four:
Present embodiment is the improvement of above-described embodiment, is that above-described embodiment is about the refinement of linkage.The described linkage of present embodiment is that an end is connected with upper screen frame pin, the rope chain that the other end is connected with the top hoisting ring of hydraulic support.
The rope chain is full flexible.When hydraulic support rose, the rope chain that hangs on the hydraulic support top beam hoisting ring can drag the screen frame rising.When hydraulic support descended, upper screen frame utilized the weight of self just can automatically descend, and the rope chain at this time also plays the effect of the upper screen frame decrease speed of constraint.Because rope chain flexibility connection function can not cause interference to sliding up and down of the upper screen frame on the slide rail.
It should be noted that at last, below only unrestricted in order to the technical solution of the utility model to be described, although with reference to the preferred arrangement scheme the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model (such as form of form, fastening devices and the linkage of the shape of protecting wire net, slide rail etc.), and not break away from the spirit and scope of technical solutions of the utility model.
Claims (4)
1. scalable protecting wire net of hydraulic support, comprise: the lower screen frame that is fixedly connected with hydraulic support column by fastening devices, be provided with lower net plate in the described lower screen frame, it is characterized in that, described lower screen frame both sides are fixed with slide rail, be provided with the upper screen frame that can move up and down along slide rail in the described slide rail, be provided with upper net plate in the described upper screen frame, the top of described upper screen frame or be provided with the linkage that flexibly connects with hydraulic support top beam near the both sides at top.
2. protecting wire net according to claim 1 is characterized in that, described fastening devices is clip.
3. protecting wire net according to claim 1 is characterized in that, described slide rail is the angle steel that is welded on the lower screen frame.
4. one of according to claim 1-3 described protecting wire net is characterized in that described linkage is that an end is connected with upper screen frame pin, the rope chain that the other end is connected with the top hoisting ring of hydraulic support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220582621 CN202914112U (en) | 2012-11-07 | 2012-11-07 | Telescopic protective mesh for hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220582621 CN202914112U (en) | 2012-11-07 | 2012-11-07 | Telescopic protective mesh for hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914112U true CN202914112U (en) | 2013-05-01 |
Family
ID=48162433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220582621 Expired - Lifetime CN202914112U (en) | 2012-11-07 | 2012-11-07 | Telescopic protective mesh for hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202914112U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863703A (en) * | 2016-05-25 | 2016-08-17 | 郑州煤矿机械集团股份有限公司 | Flexible protecting net for hydraulic bracket of coal mine |
| CN106907171A (en) * | 2017-05-11 | 2017-06-30 | 安徽科信矿山机械制造有限公司 | Protector between a kind of mine hydraulic support neighbour frame |
-
2012
- 2012-11-07 CN CN 201220582621 patent/CN202914112U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863703A (en) * | 2016-05-25 | 2016-08-17 | 郑州煤矿机械集团股份有限公司 | Flexible protecting net for hydraulic bracket of coal mine |
| CN106907171A (en) * | 2017-05-11 | 2017-06-30 | 安徽科信矿山机械制造有限公司 | Protector between a kind of mine hydraulic support neighbour frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100013 Beijing city Chaoyang District Hepingli 13 No. 35 coal Street building room 1006 Patentee after: BEIJING TIANDI HUATAI MINING MANAGEMENT Co.,Ltd. Address before: 100013 Beijing city Chaoyang District Hepingli 13 No. 35 coal Street building room 1006 Patentee before: BEIJING TIANDI HUATAI MINING ENGINEERING & TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |
|
| CX01 | Expiry of patent term |