CN201671647U - Horizontal reverse four-bar fore support with high inclination angle working surface - Google Patents

Horizontal reverse four-bar fore support with high inclination angle working surface Download PDF

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Publication number
CN201671647U
CN201671647U CN201020174235XU CN201020174235U CN201671647U CN 201671647 U CN201671647 U CN 201671647U CN 201020174235X U CN201020174235X U CN 201020174235XU CN 201020174235 U CN201020174235 U CN 201020174235U CN 201671647 U CN201671647 U CN 201671647U
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CN
China
Prior art keywords
reverse
transversal
link
working surface
bar
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Expired - Lifetime
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CN201020174235XU
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Chinese (zh)
Inventor
张守祥
刘国柱
贾一
吕金龙
仲丛和
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Chinacoal Beijing Coal Mining Machinery Co Ltd
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Chinacoal Beijing Coal Mining Machinery Co Ltd
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Priority to CN201020174235XU priority Critical patent/CN201671647U/en
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Abstract

The utility model discloses a horizontal reverse four-bar fore support with a high inclination angle working surface. The fore support comprises a top beam and a base, wherein four upright columns are arranged between the top beam and the base; the supporting height of the two left upright columns of the top beam is more than that of the two right upright columns; a horizontal reverse four-bar mechanism is arranged between the top beam near the lower part of each right upright column and the base; the horizontal reverse four-bar mechanism comprises an oblique beam, the upper end of the oblique beam is articulated with the top beam and the lower end of the oblique beam is connected with the base through 4 bars; the upper end of each bar is articulated with the oblique beam and the lower end of the bar is articulated with the base; the part of the bar articulated with the oblique beam projects leftwards; and the left side of the horizontal reverse four-bar mechanism and the right sides of the two left upright columns of the top beam form a pedestrian space. The horizontal reverse four-bar mechanism can not only overcome the lateral pressure from a top plate, but also lead to a larger operating space under the support, and can be used for slanting the high inclination angle working surface of a gate of the top plate.

Description

Transversal reverse-four-link-bar advance bracket of large-obliquity working surface
Technical field
The utility model relates to the hydraulic support of a kind of colliery large inclination working surface special-shaped laneway support, relates in particular to a kind of transversal reverse-four-link-bar advance bracket of large-obliquity working surface.
Background technology
Down-hole coal excavation work plane of the prior art, the form of artificial individual prop is mainly adopted to the supporting of crossheading in the down-hole, and along with the propelling of coal-face, the underground labour constantly removes, supports individual prop, and so forth, low, the poor stability of efficient.
For the crossheading of horizontal top plate, also have and adopt the advance timbering supporting, but for the crossheading of inclined roof panels, because the lateral pressure that advance timbering is difficult to bear top board is difficult to use the advance timbering supporting.
The utility model content
The purpose of this utility model provides a kind of transversal reverse-four-link-bar advance bracket of large-obliquity working surface that can be used in the inclined roof panels crossheading.
The purpose of this utility model is achieved through the following technical solutions:
Transversal reverse-four-link-bar advance bracket of large-obliquity working surface of the present utility model, comprise back timber, base, be provided with 4 root posts between described back timber and the base, the bearing height of two root posts in described back timber left side is provided with transversal reverse-four-link-bar mechanism greater than the bearing height of two root posts on right side between the below of the close right side of described back timber column and the base;
Described transversal reverse-four-link-bar mechanism comprises cant beam, and the upper end of described cant beam and described back timber are hinged, and the lower end is connected with described base by 4 connecting rods;
The upper end of described connecting rod and described cant beam are hinged, and lower end and described base are hinged;
Protrude to the left at the hinged position of described connecting rod and described cant beam;
Form the pedestrian space between the right side of two root posts in the left side of described transversal reverse-four-link-bar mechanism and described back timber left side.
The technical scheme that is provided by above-mentioned the utility model as can be seen, transversal reverse-four-link-bar advance bracket of large-obliquity working surface described in the utility model, because the bearing height of two root posts in back timber left side greater than the bearing height of two root posts on right side, is provided with transversal reverse-four-link-bar mechanism between the below of the close right side of back timber column and the base.Transversal reverse-four-link-bar mechanism can overcome from the side direction of top board and presses, and having to make has bigger working space under the frame, can be used in the large inclination working surface of inclined roof panels crossheading.
Description of drawings
Fig. 1 is the structural representation of adjacent two transversal reverse-four-link-bar advance bracket of large-obliquity working surface in the utility model;
Fig. 2 is the structural representation of transversal reverse-four-link-bar advance bracket of large-obliquity working surface application state of the present utility model.
The specific embodiment
Transversal reverse-four-link-bar advance bracket of large-obliquity working surface of the present utility model, its preferable specific embodiment be as shown in Figure 1:
Comprise back timber 3, base 6, be provided with 4 root posts between described back timber 3 and the base 6, the bearing height of two root posts 2 in described back timber 3 left sides is provided with transversal reverse-four-link-bar mechanism greater than two root posts, 4 bearing heights on right side between the below of two root posts 2 on described back timber 3 close right sides and the base 6;
Described transversal reverse-four-link-bar mechanism comprises cant beam 5, and the upper end of described cant beam 5 and described back timber 3 are hinged, and the lower end is connected with described base 6 by 4 connecting rods 9;
The upper end of described connecting rod 9 and described cant beam 5 are hinged, and lower end and described base 6 are hinged;
Protrude to the left at described connecting rod 9 and described cant beam 5 hinged positions;
Form the pedestrian space between the right side of the left side of described transversal reverse-four-link-bar mechanism and two root posts 2 in described back timber 3 left sides.
The left side of described back timber 3 can be provided with flexible back timber 8.The left side of two root posts 2 in described back timber 3 left sides is provided with elevating conveyor 1.
The inclined plane of described back timber 3 and the angle of horizontal plane can be more than or equal to 50 degree, and the bearing length of back timber 3 is more than or equal to 20 meters.
As shown in Figure 2, this transversal reverse-four-link-bar advance bracket of large-obliquity working surface can have a plurality of, such as there being 4-5, being provided with between adjacent two supports and passing jack 10.
Transversal reverse-four-link-bar advance bracket of large-obliquity working surface of the present utility model has solved narrow and small problem, the support stability problem in space under the large inclination working surface tradition advanced hydraulic support frame.Make back timber can either adapt to the top board angle, can also bear pressure, can adapt to the instructions for use in special-shaped tunnel from crossheading top board side direction.
This hydraulic support adopts the caving shield of little cant beam mechanism replacement conventional stent, and quadric chain is reverse, has rationally utilized the space, and safe and spacious frame servant row space, the installing space of relevant device can be provided.
Simultaneously, advance timbering adopts transversal reverse-four-link-bar mechanism, has increased the stability (advance timbering of the prior art does not generally design four connecting rods, to adapt to the special-shaped tunnel of high inclination-angle) of support.
These advance timbering four link design directions are different from traditional support, quadric chain is oppositely settled and placed perpendicular to crossheading, laterally walk along roadway direction.
Advantage is that the back timber of advance timbering has and can effective support has the tunnel that big gradient and angle change, and provides safety, spacious frame servant row space, installation space for the mine again.
Advance timbering is generally 4~5 compositions, and bar timbering length is greater than 20m.
Moving of support will be drawn and move posterior bracket by being installed in jack on the base, and order is moved frame.
During use, it is put in the work plane crossheading, under the effect of hydraulic pressure, makes support stretching top board, the crossheading top board is effectively supported, thereby hew out the working space of set cap below, improve operating efficiency and safety in the crossheading by column.Not only improve the coal-face operating efficiency, improved the producing coal amount, reduced human cost, and because the supporting area of advance timbering is big, the supporting intensity height, thereby improved the safety in crossheading zone greatly, and advance timbering has also brought spacious working space for the down-hole by the upright supports of high workload resistance.
Transversal reverse-four-link-bar advance bracket of large-obliquity working surface of the present utility model, a plurality of supports are connected to each other them by the passing jack of base front end each other, form complete advance timbering jointly.During use, the column feed liquor of support, the stretching top board is played a supporting role, and the mode by the passing jack " preceding postponing drawn " between two makes the support reach and draws in.So-called " preceding postponing drawn " promptly: fall side arm, the after-frame support is passed jack cavity of resorption feed liquor, makes the side arm reach; After side arm puts in place, the column feed liquor, after-frame falls in support stretching top board simultaneously, passes jack epicoele feed liquor, and after-frame is drawn in.
The shift-in form of advance timbering of the prior art all is that the passing jack by support is connected with elevating conveyor, after the elevating conveyor reach, to pass the jack idle stroke pulls out, pass jack epicoele feed liquor then, support is drawn in, the shortcoming of this kind form of structure maximum is exactly a support with after elevating conveyor is connected, try to stop people from fighting each other is to be fixed point with the elevating conveyor, the ledge of elevating conveyor is stressed, thereby influence the application life of elevating conveyor, the design feature of the support in the utility model " preceding postponing drawn " then overcomes the above-mentioned shortcoming of common advance timbering.
Support of the present utility model has the lateral adaptation of back timber, for the crossheading section is special-shaped tunnel, popular saying is exactly because the inclination of coal-face, individual wedge shape top has been played on crossheading top, this just requires support (promptly horizontal) on vertical direct of travel, column in perpendicular to base plate, stretching set cap obliquely also, thus support the crossheading top board.This support maximum adaptation angle can reach 50 degree.
Support of the present utility model has oblique supportive, and support has good stability, satisfies the requirement of oblique pressurized.
Bracket support distance of the present utility model, supporting distance can be adjusted, and total supporting is apart from can be greater than 20 meters.And this support also has the adjustable advantage of supporting distance, according to actual needs, by increasing, subtract single pack support quantity, the supporting distance adjusted.
The above; it only is the preferable specific embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.

Claims (7)

1. transversal reverse-four-link-bar advance bracket of large-obliquity working surface, comprise back timber, base, be provided with 4 root posts between described back timber and the base, it is characterized in that, the bearing height of two root posts in described back timber left side is provided with transversal reverse-four-link-bar mechanism greater than the bearing height of two root posts on right side between the below of the close right side of described back timber column and the base;
Described transversal reverse-four-link-bar mechanism comprises cant beam, and the upper end of described cant beam and described back timber are hinged, and the lower end is connected with described base by 4 connecting rods;
The upper end of described connecting rod and described cant beam are hinged, and lower end and described base are hinged;
Protrude to the left at the hinged position of described connecting rod and described cant beam;
Form the pedestrian space between the right side of two root posts in the left side of described transversal reverse-four-link-bar mechanism and described back timber left side.
2. transversal reverse-four-link-bar advance bracket of large-obliquity working surface according to claim 1 is characterized in that the left side of described back timber is provided with flexible back timber.
3. transversal reverse-four-link-bar advance bracket of large-obliquity working surface according to claim 2 is characterized in that, the left side of two root posts in described back timber left side is provided with elevating conveyor.
4. according to each described transversal reverse-four-link-bar advance bracket of large-obliquity working surface of claim 1 to 3, it is characterized in that the inclined plane of described back timber and the angle of horizontal plane are more than or equal to 50 degree.
5. transversal reverse-four-link-bar advance bracket of large-obliquity working surface according to claim 4 is characterized in that the bearing length of described back timber is more than or equal to 20 meters.
6. transversal reverse-four-link-bar advance bracket of large-obliquity working surface according to claim 5 is characterized in that this transversal reverse-four-link-bar advance bracket of large-obliquity working surface has a plurality of, is provided with the passing jack between adjacent two supports.
7. transversal reverse-four-link-bar advance bracket of large-obliquity working surface according to claim 6 is characterized in that, this transversal reverse-four-link-bar advance bracket of large-obliquity working surface has 4-5.
CN201020174235XU 2010-04-23 2010-04-23 Horizontal reverse four-bar fore support with high inclination angle working surface Expired - Lifetime CN201671647U (en)

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CN201020174235XU CN201671647U (en) 2010-04-23 2010-04-23 Horizontal reverse four-bar fore support with high inclination angle working surface

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101832146A (en) * 2010-04-23 2010-09-15 中煤北京煤矿机械有限责任公司 Transversal reverse-four-link-bar advance bracket of large-obliquity working surface
CN104100287A (en) * 2013-04-15 2014-10-15 四川省煤炭产业集团有限责任公司 Novel self-moving advanced supporting bracket for coal mining roadway
CN111852531A (en) * 2020-07-03 2020-10-30 扎赉诺尔煤业有限责任公司 Roadway advance support hydraulic support

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101832146A (en) * 2010-04-23 2010-09-15 中煤北京煤矿机械有限责任公司 Transversal reverse-four-link-bar advance bracket of large-obliquity working surface
CN104100287A (en) * 2013-04-15 2014-10-15 四川省煤炭产业集团有限责任公司 Novel self-moving advanced supporting bracket for coal mining roadway
CN111852531A (en) * 2020-07-03 2020-10-30 扎赉诺尔煤业有限责任公司 Roadway advance support hydraulic support

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20101215

Effective date of abandoning: 20111228