CN201934115U - Ultra-large mining height hydraulic support - Google Patents

Ultra-large mining height hydraulic support Download PDF

Info

Publication number
CN201934115U
CN201934115U CN2010206158317U CN201020615831U CN201934115U CN 201934115 U CN201934115 U CN 201934115U CN 2010206158317 U CN2010206158317 U CN 2010206158317U CN 201020615831 U CN201020615831 U CN 201020615831U CN 201934115 U CN201934115 U CN 201934115U
Authority
CN
China
Prior art keywords
base
hinged
back timber
hydraulic support
caving shield
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 - Lifetime
Application number
CN2010206158317U
Other languages
Chinese (zh)
Inventor
闫振东
王星
杨栋
刘瑞琴
赵光明
栗林波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanxi Jincheng Anthracite Mining Group Jinding Stoker Mining Co.,Ltd.
Original Assignee
Shanxi Jincheng Anthracite Mining Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanxi Jincheng Anthracite Mining Group Co Ltd filed Critical Shanxi Jincheng Anthracite Mining Group Co Ltd
Priority to CN2010206158317U priority Critical patent/CN201934115U/en
Application granted granted Critical
Publication of CN201934115U publication Critical patent/CN201934115U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a hydraulic support, in particular to an ultra-large mining height hydraulic support, which meets the requirement of one-step mining overall height of thick coal seams of 7.5 meters. The ultra-large mining height hydraulic support comprises a base, a top beam and hydraulic upright columns, the rear of the top beam is hinged with a shield beam, front and rear connecting rods are disposed between the shield beam and the base, two ends of each of the front and rear connecting rods are respectively hinged with the shield beam and the base, the shield beam, the base and the front and rear connecting rods form a four-bar linkage, a balancing jack is arranged between the top beam and the shield beam, a telescopic beam is disposed at the front of the top beam, a primary side wall protecting plate is hinged at the front end of the telescopic beam, a secondary side wall protecting plate is hinged at the front end of the primary side wall protecting plate, a tertiary side wall protecting plate is hinged at the front end of the secondary side wall protecting plate, and the length ratio of the distance from a column cap on the top beam to the front end of the top beam and the distance from the column cap on the top beam to the rear end of the top beam is 2:1. The ultra-large mining height hydraulic support is reasonable and compact in structure and high in work resistance capable of achieving 17500kN at least, timbering height can achieve 7.6m, and coal recovery ratio of the thick coal seams can be greatly improved.

Description

Especially big mining height hydraulic support
Technical field
The utility model relates to hydraulic support, specifically is a kind of especially big mining height hydraulic support that 7.5 meters high seam full-seam minings require that satisfies.
Background technology
High seam full-seam mining is a kind of exploitation method of economical rationality, and full-seam mining has reduced workloads such as tunnelling and supporting, has reduced cost of winning, has improved resource recovery.Simultaneously big mining height has improved hilted broadsword coal cutting amount, has created condition for improving the working surface production ability.But mining height strengthens work plane ore deposit, back pressure to be manifested and will obviously strengthen, wall caving and the aggravation of roof fall tendency, and the roof control difficulty increases.Hydraulic support is as the support apparatus of mining face under mine indispensability, and along with mining height increases, support stability requires to increase, and working resistance requires to increase; To be able to realize timely maintenance control simultaneously, prevent roof collapse anterior top board; Effective wall supporting device also will be arranged, in time the wall supporting jack is stretched out after coal-winning machine has been adopted coal, rib is lived in the face guard supporting, to prevent coal wall caving, recoverable again face guard when trying to stop people from fighting each other.
Summary of the invention
The utility model provides a kind of especially big mining height hydraulic support in order to satisfy the requirement of 7.5 meters high seam full-seam mining.
The utility model is to adopt following technical scheme to realize: especially big mining height hydraulic support, comprise base, back timber, be arranged at the hydraulic vertical prop between base and the back timber, the hydraulic vertical prop bottom cooperates fixing with base by the needling on the base, column cap cooperates fixing with back timber by the cap on the back timber, the back timber rear portion is hinged with caving shield, be provided with front and rear connecting rods between caving shield and base, the front and rear connecting rods two ends are hinged with caving shield, base respectively, caving shield, base and front and rear connecting rods constitute quadric chain, are provided with balance jack between back timber and the caving shield; The back timber front portion is provided with extensible canopy, and the extensible canopy front end is hinged with the one-level face guard, and one-level face guard front end is hinged with the secondary face guard, and secondary face guard front end is hinged with the three-stage side protecting plate; Cap is 2:1 apart from the length ratio of back timber front and back ends on the back timber.
Cap than making the fulcrum of column column cap supporting top beam be in the stress balance point of back timber for 2:1, can reduce the support abominable stress that occurs facing upward, bows apart from the length of back timber front and back ends on the back timber, has improved the support reliability; The extensible canopy front end is provided with three-stage side protecting mechanism, moves with extensible canopy, and after three-stage side protecting mechanism launched, height can reach 3.8m, can reduce roof collapse and coal wall caving.
Base adopts rigidity split pattern, helps float coal and discharges; Neutral position in the middle of the base is provided with lifts rack device, and when the soft seat work plane support occurred and is absorbed in the base plate situation, liftable support was realized trying to stop people from fighting each other.
The radial clearance that reaches pin joint between front and rear connecting rods and caving shield, base between back timber and caving shield is less than 0.6 millimeter, and lateral clearance is less than 6 millimeters.Reduce in the gap of pin joint makes the stressed rear side of hydraulic support reduce to side-play amount, has improved the stability in use of hydraulic support.
The front and rear connecting rods of establishing between caving shield and base adopts two front rods, whole back link structure, makes the support resistance to overturning good.
The utility model is rational in infrastructure, compact, and working resistance is big, can reach more than the 17500KN, and supporting height can reach 7.6m, can improve the coal recovery rate of high seam greatly.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1-one-level face guard; 2-secondary face guard; 3-three-stage side protecting plate; The 4-extensible canopy; The 5-back timber; The 6-caving shield; The 7-front rod; The 8-back link; The 9-base; The 10-hydraulic vertical prop; The 11-balance jack; 12-lifts rack device.
The specific embodiment
As shown in Figure 1, especially big mining height hydraulic support, comprise base 9, back timber 5, be arranged at the hydraulic vertical prop 10 between base 9 and the back timber 5, hydraulic vertical prop 10 bottoms cooperate fixing with base 9 by the needling on the base 9, column cap cooperates fixing with back timber 5 by the cap on the back timber 5, back timber 5 rear portions are hinged with caving shield 6, before 9 of caving shield 6 and bases are provided with, back link 7,8, before, back link 7,8 two ends respectively with caving shield 6, base 9 is hinged, caving shield 6, base 9, and it is preceding, back link 7,8 constitute quadric chain, are provided with balance jack 11 between back timber 5 and the caving shield 6; Back timber 5 front portions are provided with extensible canopy 4, and extensible canopy 4 front ends are hinged with one-level face guard 1, and one-level face guard 1 front end is hinged with secondary face guard 2, and secondary face guard 2 front ends are hinged with three-stage side protecting plate 3; Cap is 2:1 apart from the length ratio of back timber 5 front and back ends on the back timber 5.Neutral position in the middle of the base 9 is provided with lifts rack device 12.The radial clearance of 6 of back timber 5 and caving shields and front and rear connecting rods 7,8 and caving shield 6,9 pin joints of base is less than 0.6 millimeter, and lateral clearance is less than 6 millimeters.

Claims (3)

1. especially big mining height hydraulic support, comprise base (9), back timber (5), be arranged at the hydraulic vertical prop (10) between base (9) and the back timber (5), hydraulic vertical prop (10) bottom cooperates fixing with base (9) by the needling on the base (9), column cap cooperates fixing with back timber (5) by the cap on the back timber (5), back timber (5) rear portion is hinged with caving shield (6), before being provided with between caving shield (6) and base (9), back link (7,8), before, back link (7,8) two ends respectively with caving shield (6), base (9) is hinged, caving shield (6), base (9), and it is preceding, back link (7,8) constitute quadric chain, be provided with balance jack (11) between back timber (5) and the caving shield (6); Back timber (5) front portion is provided with extensible canopy (4), it is characterized in that: extensible canopy (4) front end is hinged with one-level face guard (1), one-level face guard (1) front end is hinged with secondary face guard (2), and secondary face guard (2) front end is hinged with three-stage side protecting plate (3); The last cap of back timber (5) is 2:1 apart from the length ratio of back timber (5) front and back ends.
2. according to the described especially big mining height hydraulic support of claim 1, it is characterized in that: the neutral position in the middle of the base (9) is provided with lifts rack device (12).
3. according to the described especially big mining height hydraulic support of claim 1, it is characterized in that: the radial clearance that reaches pin joint between front and rear connecting rods (7,8) and caving shield (6), base (9) between back timber (5) and caving shield (6) is less than 0.6 millimeter, and lateral clearance is less than 6 millimeters.
CN2010206158317U 2010-11-21 2010-11-21 Ultra-large mining height hydraulic support Expired - Lifetime CN201934115U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206158317U CN201934115U (en) 2010-11-21 2010-11-21 Ultra-large mining height hydraulic support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206158317U CN201934115U (en) 2010-11-21 2010-11-21 Ultra-large mining height hydraulic support

Publications (1)

Publication Number Publication Date
CN201934115U true CN201934115U (en) 2011-08-17

Family

ID=44445637

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010206158317U Expired - Lifetime CN201934115U (en) 2010-11-21 2010-11-21 Ultra-large mining height hydraulic support

Country Status (1)

Country Link
CN (1) CN201934115U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103046944A (en) * 2012-12-26 2013-04-17 三一重型装备有限公司 Hydraulic support
CN103821549A (en) * 2014-02-24 2014-05-28 山西晋城无烟煤矿业集团有限责任公司 Large-mining-height hydraulic support

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103046944A (en) * 2012-12-26 2013-04-17 三一重型装备有限公司 Hydraulic support
CN103046944B (en) * 2012-12-26 2015-04-22 三一重型装备有限公司 Hydraulic support
CN103821549A (en) * 2014-02-24 2014-05-28 山西晋城无烟煤矿业集团有限责任公司 Large-mining-height hydraulic support

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: JINDING COAL MINING CO., LTD. OF SHANXI JINCHENG A

Effective date: 20130305

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20130305

Address after: 048006 Shanxi province Jincheng city BeiShiDian town of Shanxi Coal Group

Patentee after: Shanxi Jincheng Anthracite Mining Industry Group Co., Ltd.

Patentee after: Shanxi Jincheng Anthracite Mining Group Jinding Stoker Mining Co.,Ltd.

Address before: 048006 Shanxi province Jincheng city BeiShiDian town of Shanxi Coal Group

Patentee before: Shanxi Jincheng Anthracite Mining Industry Group Co., Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20110817