CN201874598U - Shield type hydraulic support for thin coal seam - Google Patents
Shield type hydraulic support for thin coal seam Download PDFInfo
- Publication number
- CN201874598U CN201874598U CN2010206502901U CN201020650290U CN201874598U CN 201874598 U CN201874598 U CN 201874598U CN 2010206502901 U CN2010206502901 U CN 2010206502901U CN 201020650290 U CN201020650290 U CN 201020650290U CN 201874598 U CN201874598 U CN 201874598U
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- crotch
- hinged
- jack
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- 239000003245 coal Substances 0.000 title abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005065 mining Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000013475 authorization Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001574 biopsy Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model provides a shield type hydraulic support for a thin coal seam, which comprises a top beam, an upright column, a front connecting rod, a shield beam, a rear connecting rod and a base, wherein the shield beam, the front connecting rod, the rear connecting rod and the base are hinged in pairs to form a four-rod mechanism; the base is of a full open crotch box body structure; a push jack is located at the rear part of the crotch; a push rod is located at the front part of the crotch; a bottom lifting mechanism is arranged in the crotch of the front part of the base and comprises a first oscillating bar, a second oscillating bar and a bottom lifting jack; the middle parts of the first oscillating bar and the second oscillating bar are respectively hinged on lug plates at two sides of the crotch; and the upper ends of the first oscillating bar and the second oscillating bar are respectively hinged with a cylinder body and a piston rod of the bottom lifting jack. As a four-rod type lifting frame structure is designed in the shield type hydraulic support for the thin coal seam in combination with the characteristic that the hydraulic support for the thin coal seam has a thinner base, the base can be lifted to a certain height under the action of the bottom lifting jack; a frame is convenient to move; the hydraulic support solves the problem that the bottom of the thin coal seam cannot be lifted; and the occupied space is very small.
Description
Technical field
The utility model relates under the coal mine the comprehensive mechanical coal mining work plane shielding of girdle equipment, be specifically a kind of be used for base plate softer, need lift the hydraulic support at the end, specifically be a kind of hydraulic shield support that is used for girdle.
Background technology
In short supply along with the energy, the quickening day by day of coal in China exploitation paces, increasing mine is faced with the resource exhaustion problem, is to solve the resource exhaustion problem, and China also requires to exploit to girdle, improves coal mining rate.But along with the reduction gradually of working thickness, and the reducing of support space, there are some new problems in the thin seam mining technology.Because during thin seam mining, the down-hole spatial altitude reduces, and if the base plate in tunnel when softer need be lifted the end when mobile hydraulic support, can not use common bottom raising mechanism this moment, because be applicable to that the base of hydraulic support of bog-head coal is thinner usually.And the down-hole ventilates during thin seam mining also needs to adopt new technological means, if connecting rod still adopts traditional box typed structure, it is inconvenient to make the down-hole ventilate.Chinese invention patent " low coal seam coverture type hydraulic support " (December 31 2005 applying date, December 30 200 year notice of authorization day, notice of authorization CN 100575665C) disclosed a kind of hydraulic support that is used for girdle, it adopts the hydraulic cylinder of horizontally set in back timber and caving shield, so that open side guard board, but it is not solved the problems referred to above.
Summary of the invention
The purpose of this utility model is to provide a kind of hydraulic shield support that is used for girdle, if the described this hydraulic shield support that is used for girdle will solve the technical problem of prior art at the softer and inconvenient mobile hydraulic support of thin seam mining process base plate.
The purpose of this utility model is achieved through the following technical solutions: this hydraulic support comprises back timber, column, front rod, caving shield, back link and base, two root posts are articulated in base and both sides, back timber middle part, the caving shield upper end is articulated in top beam rear end, the front rod upper end is articulated in the caving shield middle part, cut with scissors in the caving shield lower end back link upper end, the lower end of front rod and back link is articulated in base rear end, caving shield, front rod, the hinged in twos formation four-bar mechanism of back link and base, be provided with between the base crotch and pass jack and push rod, base is a standard-sized sheet crotch body structure, passing jack and push rod is located between the crotch of base, the passing jack is positioned at the rear portion of crotch, push rod is positioned at the front portion of crotch, between the crotch of base front portion, be provided with bottom raising mechanism, this bottom raising mechanism comprises first fork, second fork and lift end jack, first fork and second fork middle part are hinged on respectively on the otic placode that is positioned at the crotch both sides, first fork and second fork upper end are hinged with the cylinder body of lifting end jack and piston rod respectively, and the lower end of first fork and second fork is positioned at the push rod top.
Also be hinged with balance jack between back timber rear portion and the caving shield, this balance jack upper end is hinged with back timber rear portion downside, and balance jack lower end and caving shield middle part are hinged.
The back timber front portion is extended forward and is provided with steel plate, and the top board of this steel plate and back timber constitutes overall structure.
It is tabular that front rod is, and is made of two block plates, and balance jack is between two block plates of front rod.
Be hinged with main gusset between the caving shield outside and base, main gusset is tabular component, and the top and bottom of this main gusset are articulated in respectively on the jointed shaft of top and bottom of front rod.
The two block plates outside at front rod respectively is provided with a main gusset.
Respectively be hinged with a back link about base rear end, be provided with distance between two back links, these two back link upper ends are hinged with caving shield.
Back link adopts body structure, is welded by steel plate.
Push rod adopts body structure, is welded by steel plate.
First fork and second fork are made of two plates, lift end jack between two plates of first fork and second fork.
The utility model is compared with prior art, and its effect is actively with tangible.Originally the hydraulic shield support that is used for girdle is lifted frame mechanism in conjunction with the thin characteristics design four-bar of hydraulic support for low coal seam base, lifting under the end jack effect and base can lifted certain height, be convenient to move frame, solved girdle and can't lift the difficult problem at the end, and shared space is very little.Between back timber and caving shield, be provided with balance jack, can regulate the luffing angle of back timber and caving shield, back timber and top board are fitted better, thereby make its structure reach balance.The back timber front portion is extended forward and is provided with steel plate, and the top board of this steel plate and back timber constitutes overall structure, adopts the back timber of lengthening, has not only increased the scope to top board shielding, and has increased the space by the coal machine.Front rod adopts the high-strength plate welded construction, and four-bar linkage structure has not only been optimized in the effect of front rod, has reduced the connecting rod area that keeps out the wind, and has increased the performance of ventilating of ventilation girdle.On two jointed shafts of front rod, be positioned at the front rod outside and also be provided with main gusset, play the effect of front rod.
Description of drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the schematic diagram that removes among Fig. 2 behind back timber, column and the caving shield.
Fig. 4 is the vertical view of overlooking of the utility model base portion.
The specific embodiment
The utility model is described in further detail by embodiment below in conjunction with accompanying drawing.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, in order to show balance jack, in Fig. 1, the caving shield side guard board is carried out biopsy cavity marker devices.In the present embodiment, this hydraulic support comprises back timber 1, column 2, front rod 8, caving shield 4, back link 6 and base 7, two root posts 2 are articulated in base 7 and both sides, back timber 1 middle part, caving shield 4 upper ends are articulated in back timber 1 rear end, front rod 8 upper ends are articulated in caving shield 4 middle parts, cut with scissors in caving shield 4 lower ends back link 6 upper ends, the lower end of front rod 8 and back link 6 is articulated in base 7 rear ends, caving shield 4, front rod 8, the hinged in twos formation four-bar mechanism of back link 6 and base 7, the left and right sides of back timber 1 and caving shield 4 is equipped with side guard board, base 7 is a standard-sized sheet crotch body structure, be provided with between base 7 crotch and pass jack 13 and push rod 10, passing jack 13 is positioned at the rear portion of crotch, push rod 10 is positioned at the front portion of crotch, between the crotch of base 7 front portions, be provided with bottom raising mechanism, this bottom raising mechanism comprises first fork 9, second fork 12 and lift end jack 11, first fork 9 and second fork, 12 middle parts are hinged on respectively on the otic placode that is positioned at the crotch both sides, first fork 9 and second fork, 12 upper ends are hinged with the cylinder body of lifting end jack 11 and piston rod respectively, the lower end of first fork 9 and second fork 12 is positioned at push rod 10 tops, first fork 9 and second fork 12 are made of two plates, lift end jack 11 between two plates of first fork 9 and second fork 12, can increase driving force and this balance of lifting bottom structure of first fork and second fork like this.Back timber 1 front portion is extended forward and is provided with steel plate, and the top board of this steel plate and back timber constitutes overall structure by welding.
Also be hinged with balance jack 3 between back timber 1 rear portion and the caving shield 4, these balance jack 3 upper ends and back timber 1 rear portion downside are hinged, and balance jack 3 lower ends and caving shield 4 middle parts are hinged.
Front rod 8 is tabular, and front rod 8 is made of two block plates, and balance jack 3 is between two block plates of front rod 8.Be hinged with main gusset 5 between caving shield 4 outsides and base 7, main gusset 5 is tabular component, and the top and bottom of this main gusset 5 are articulated in respectively on the jointed shaft of top and bottom of front rod 8.The two block plates outside at front rod 8 respectively is provided with a main gusset 5.About base 7 rear ends, respectively be hinged with a back link 6, be provided with distance between two back links 6, this distance is convenient to be provided with front rod and balance jack, and these two back link 6 upper ends and caving shield 4 are hinged, back link 6 adopts body structure, is welded by steel plate.Push rod 10 adopts body structure, is welded by steel plate.
Lift end jack 13 and be the formal dress setting, promptly its cylinder body is located at rear between the base crotch, and its piston rod stretches out forward, can increase the passing stroke.
It is as follows to lift end implementation procedure: first fork and the second fork pin joint of base with this is fulcrum, and under the effect of lifting end jack, an end of fork is pressed on the push rod, thereby realizes lifting at the end.
Except such scheme, can be at the hinged portable plate of first fork and the second fork lower end, when first fork contacted with push rod with second fork, this portable plate entirely fitted in the push rod upper surface, can increase the weight capacity of push rod.
Claims (10)
1. hydraulic shield support that is used for girdle, this hydraulic support comprises back timber, column, front rod, caving shield, back link and base, two root posts are articulated in base and both sides, back timber middle part, the caving shield upper end is articulated in top beam rear end, the front rod upper end is articulated in the caving shield middle part, cut with scissors in the caving shield lower end back link upper end, the lower end of front rod and back link is articulated in base rear end, caving shield, front rod, the hinged in twos formation four-bar mechanism of back link and base, be provided with between the base crotch and pass jack and push rod, it is characterized in that: base is a standard-sized sheet crotch body structure, passing jack and push rod is located between the crotch of base, the passing jack is positioned at the rear portion of crotch, push rod is positioned at the front portion of crotch, between the crotch of base front portion, be provided with bottom raising mechanism, this bottom raising mechanism comprises first fork, second fork and lift end jack, first fork and second fork middle part are hinged on respectively on the otic placode that is positioned at the crotch both sides, first fork and second fork upper end are hinged with the cylinder body of lifting end jack and piston rod respectively, and the lower end of first fork and second fork is positioned at the push rod top.
2. the hydraulic shield support that is used for girdle as claimed in claim 1, it is characterized in that: also be hinged with balance jack between back timber rear portion and the caving shield, this balance jack upper end is hinged with back timber rear portion downside, and balance jack lower end and caving shield middle part are hinged.
3. the hydraulic shield support that is used for girdle as claimed in claim 1 is characterized in that: the back timber front portion is extended forward and is provided with steel plate, and the top board of this steel plate and back timber constitutes overall structure.
4. the hydraulic shield support that is used for girdle as claimed in claim 1 is characterized in that: front rod is tabular, is made of two block plates, and balance jack is between two block plates of front rod.
5. the hydraulic shield support that is used for girdle as claimed in claim 4, it is characterized in that: between the caving shield outside and base, be hinged with main gusset, main gusset is tabular component, and the top and bottom of this main gusset are articulated in respectively on the jointed shaft of top and bottom of front rod.
6. the hydraulic shield support that is used for girdle as claimed in claim 5 is characterized in that: the two block plates outside at front rod respectively is provided with a main gusset.
7. the hydraulic shield support that is used for girdle as claimed in claim 1 is characterized in that: respectively be hinged with a back link about base rear end, be provided with distance between two back links, these two back link upper ends are hinged with caving shield.
8. the hydraulic shield support that is used for girdle as claimed in claim 7 is characterized in that: back link adopts body structure, is welded by steel plate.
9. the hydraulic shield support that is used for girdle as claimed in claim 1 is characterized in that: push rod adopts body structure, is welded by steel plate.
10. the hydraulic shield support that is used for girdle as claimed in claim 1 is characterized in that: first fork and second fork are made of two plates, lift end jack between two plates of first fork and second fork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206502901U CN201874598U (en) | 2010-12-09 | 2010-12-09 | Shield type hydraulic support for thin coal seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206502901U CN201874598U (en) | 2010-12-09 | 2010-12-09 | Shield type hydraulic support for thin coal seam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201874598U true CN201874598U (en) | 2011-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206502901U Expired - Lifetime CN201874598U (en) | 2010-12-09 | 2010-12-09 | Shield type hydraulic support for thin coal seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201874598U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536286A (en) * | 2010-12-09 | 2012-07-04 | 郑州四维机电设备制造有限公司 | Shield-type hydraulic support for thin coal seam |
| CN105604594A (en) * | 2014-11-25 | 2016-05-25 | 无锡市洗选设备厂 | Shield-type support frame for sand washer |
| CN109519203A (en) * | 2018-12-24 | 2019-03-26 | 中煤北京煤矿机械有限责任公司 | Laterally scissor bottom raising mechanism |
-
2010
- 2010-12-09 CN CN2010206502901U patent/CN201874598U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536286A (en) * | 2010-12-09 | 2012-07-04 | 郑州四维机电设备制造有限公司 | Shield-type hydraulic support for thin coal seam |
| CN105604594A (en) * | 2014-11-25 | 2016-05-25 | 无锡市洗选设备厂 | Shield-type support frame for sand washer |
| CN109519203A (en) * | 2018-12-24 | 2019-03-26 | 中煤北京煤矿机械有限责任公司 | Laterally scissor bottom raising mechanism |
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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 |
Owner name: CATERPILLAR (ZHENGZHOU) CO., LTD. Free format text: FORMER NAME: ZHENGZHOU SIWEI ELECTROMECHANICAL EQUIPMENT MANUFACTURING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 450001 No. 7 shuttle Road, hi tech Industrial Development Zone, Henan, Zhengzhou Patentee after: Caterpillar (Zhengzhou) Co., Ltd. Address before: 450001 No. 7 shuttle Road, hi tech Industrial Development Zone, Henan, Zhengzhou Patentee before: Zhengzhou Siwei Electromechanical Equipment Manufacturing Co., Ltd. Address after: 450001 No. 7 shuttle Road, hi tech Industrial Development Zone, Henan, Zhengzhou Patentee after: Caterpillar (Zhengzhou) Co., Ltd. Address before: 450001 No. 7 shuttle Road, hi tech Industrial Development Zone, Henan, Zhengzhou Patentee before: Zhengzhou Siwei Electromechanical Equipment Manufacturing Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110622 Effective date of abandoning: 20200518 |
|
| AV01 | Patent right actively abandoned |