CN201771531U - Push rod adjusting jack for inclined and steeply inclined fully mechanized mining hydraulic bracket - Google Patents
Push rod adjusting jack for inclined and steeply inclined fully mechanized mining hydraulic bracket Download PDFInfo
- Publication number
- CN201771531U CN201771531U CN2010205121832U CN201020512183U CN201771531U CN 201771531 U CN201771531 U CN 201771531U CN 2010205121832 U CN2010205121832 U CN 2010205121832U CN 201020512183 U CN201020512183 U CN 201020512183U CN 201771531 U CN201771531 U CN 201771531U
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- cylinder body
- piston rod
- installing hole
- push rod
- jack
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Abstract
The utility model discloses a push rod adjusting jack for an inclined and steeply inclined fully mechanized mining hydraulic bracket. The jack comprises a piston rod, a cylinder body and a pin shaft which are connected with a base of the hydraulic bracket, wherein the base has a hexahedral box structure and is provided with a cylinder body installation hole and a piston rod installation hole which are coaxial with each other; a sealing ring is arranged between the piston rod and the piston rod installation hole; the piston rod is hinged with the base at the outer end of the piston rod through the pin shaft; a dust-proof sealing ring is arranged between the cylinder body installation hole and the cylinder body; the cylinder body moves in the cylinder body installation body in a stretching way; a cylinder body bottom pad is movably connected to the front end of the cylinder body; the front end of the cylinder body bottom pad is connected with a push rod of the hydraulic bracket; and an outer cylinder sleeve is fixedly connected with the cylinder body bottom pad, extends from the front end of the cylinder body to the back end of the cylinder body outside the cylinder body and is in sliding fit with the cylinder body installation hole. The jack has the advantages that: the jack has a simple structure, long service life and low coal mining production cost, is convenient to maintain and does not need integrally replacing.
Description
Technical field the utility model relates in the coal mining industry a kind of combine and adopts the support apparatus parts, particularly is used to tilt and the accent push rod jack of high-dipping comprehensive mining hydraulic bracket.
Background technology is in the coal mining industry, and the big young pathbreaker's seam inclination according to seam inclination is divided into gently inclined seam, inclined seam, half-edge coal seam usually.Seam inclination is gently inclined seam below 25 °, is half-edge coal seam greater than 45 °.In coal-face, the hydraulic support and the conveyer that belong to fully-mechanized mining equipment are arranged along the seam inclination direction, form corresponding angle of inclination with horizontal plane, therefore, will there be downslide component in working face equipment naturally, causes that equipment glides, seam inclination is big more, and this aspect problem is just serious more.Push rod is the linkage that connects hydraulic support and conveyer, push rod is connected on the base of hydraulic support by hydraulic cylinder, the both sides of push rod are provided with transfers the push rod jack, in order to regulate and restriction push rod deviation post, regulates the control that realizes the conveyer downslide amount by the push rod jack.At present, transfer the push rod jack by piston rod by on two bearing pin fixed hydraulic bracket bases, withstand on the push rod side by the bottom of its cylinder body.In the course of the work, push rod is subjected to the influence of transporter falling tendency, and the jack cylinder bottom application of stretching out state is added normal pressure and lateral force, produces friction and wear at the bottom of push rod and the jack cylinder, cause jack piston rod bending or cylinder bottom to come off easily, cause jack to damage.When the accent push rod jack piston rod of existing structure bends or cylinder bottom comes off, can only integral replacing, operating difficulties simultaneously, not only the repair time long, and increased cost of winning, particularly adopt in the process in inclination and the comprehensive of high-dipping, this problem is particularly outstanding.
The summary of the invention the purpose of this utility model is exactly at the deficiencies in the prior art, provide a kind of simple in structure, easy to maintenance, do not need integral replacing, coal mining cost of production low be used to tilt and the accent push rod jack of high-dipping comprehensive mining hydraulic bracket.
For achieving the above object, the utility model adopts following technical scheme:
A kind ofly be used to tilt and the accent push rod jack of high-dipping comprehensive mining hydraulic bracket, comprise the piston rod, cylinder body, the bearing pin that are connected with the base of hydraulic support, base comprises base plate, cover plate, inner wall panel, outer body of wall, the front and back shrouding that is mutually permanently connected and forms six body structures, inner wall panel is provided with the cylinder body installing hole, outer body of wall is provided with the piston rod installing hole, cylinder body installing hole and piston rod installing hole coaxial line; The part of piston rod is positioned at the piston rod installing hole, piston rod its outer end by bearing pin with outside body of wall be connected, cylinder body telescopic moving in the cylinder body installing hole, be provided with dust-proof seal ring between cylinder body installing hole and the cylinder body, described cylinder body front end is connected with the cylinder body heelpiece, and the outside push rod side with hydraulic support at inner wall panel of cylinder body heelpiece front end flexibly connects.
Adopt the utility model of above scheme, can adopt the connected mode of various active heads between the cylinder body heelpiece of jack and the cylinder body, as universal joint, hinged etc.; Can produce relative rotation between cylinder body heelpiece and the cylinder body, when the duty of stretching out, when counteractive normal pressure of cylinder body heelpiece drawn stem and lateral force, form relative motion with push rod and cylinder body, and cylinder body can not be subjected to this to influence long-living flexural deformation or be worn, even it is badly damaged at the cylinder body heelpiece, can not cause the injury that to repair to cylinder body yet, more can not produce injury to piston rod, therefore, when the damage of cylinder body heelpiece needs to change, only need replacing cylinder body heelpiece to get final product, cylinder body, miscellaneous parts such as piston rod still can continue to use, not only reduce the workload of maintenance, saved cost of labor, simultaneously, also avoided the replacing cylinder body, the direct property loss of the parts of piston rod greatly reduces the coal mining cost of production.
Preferably, cylinder base is provided with rotating shaft, the axis of rotating shaft and cylinder body axis normal, and the cylinder body heelpiece is provided with the cross through hole that adapts with rotating shaft, and cylinder base is rotationally connected by rotating shaft and through hole and cylinder body heelpiece.Guarantee that cylinder body heelpiece and cylinder body are rotationally connected reliably, and simple in structure, convenient maintenance and replacement, low cost of manufacture.
Further preferred, be fixedly connected with outer cylinder sheath on the cylinder body heelpiece, outer cylinder sheath is extended to rear end of the cylinder block by the cylinder body front end, and outer cylinder sheath is enclosed in the cylinder body outside, is provided with the gap between the inwall of outer cylinder sheath and the outer wall of cylinder block, and outer cylinder sheath and cylinder body installing hole are slidingly matched.Avoid the base between cylinder body and the hydraulic pressure to produce fretting wear, further guarantee the cylinder body long service life.
Preferably, bearing pin quantity is 1, and the axis of bearing pin axis and piston rod intersects vertically in same plane, and bearing pin is rotatably assorted in the bearing pin installing hole that piston rod and base relevant position are provided with.Single bearing pin can be realized piston rod around the bearing pin rotational, produces at the cylinder body heelpiece under the situation of big displacement, can guarantee that still piston rod does not produce flexural deformation, prolongs the application life of piston rod, further reduces the coal mining cost of production.
Preferably, be connected with joint ring between piston rod installing hole and the piston rod, joint ring is arranged in the joint ring draw-in groove that piston rod is provided with.Joint ring and dust-proof seal ring acting in conjunction, avoid in the working environment dust to the influence of piston rod working surface, prevent that wearing and tearing and hydraulic packing that the piston rod working surface produces because of dust pollution from leaking, further prolong jack application life, reduce the coal mining cost of production.
The utility model is used to tilt and the beneficial effect of the accent push rod jack of high-dipping comprehensive mining hydraulic bracket is, and is simple in structure, do not need integral replacing, long service life, coal mining cost of production low.
Description of drawings Fig. 1 is a user mode schematic diagram of the present utility model;
Fig. 2 is a structural representation of the present utility model.
The specific embodiment is further described the utility model below in conjunction with accompanying drawing:
Enforcement is referring to Fig. 1, Fig. 2, a kind ofly be used to tilt and the accent push rod jack of high-dipping comprehensive mining hydraulic bracket, comprise the piston rod 1, cylinder body 2, the bearing pin 3 that are connected with the base 4 of hydraulic support, base 4 comprises base plate 43, cover plate 44, inner wall panel 45, outer body of wall 46, the front and back shrouding 47 that is mutually permanently connected and forms six body structures, inner wall panel 45 is provided with cylinder body installing hole 41, outer body of wall 46 is provided with piston rod installing hole 42, cylinder body installing hole 41 and piston rod installing hole 42 coaxial lines; The part of piston rod 1 is positioned at piston rod installing hole 42, piston rod 1 its outer end by bearing pin 3 with outside body of wall 46 be connected, cylinder body 2 telescopic moving in cylinder body installing hole 41, be provided with dust-proof seal ring 411 between cylinder body installing hole 41 and the cylinder body 2, described cylinder body 2 front ends are connected with cylinder body heelpiece 21, and cylinder body heelpiece 21 front ends flexibly connect in inner wall panel 45 outside push rod 5 sides with hydraulic support.
Described cylinder body 2 bottoms are provided with rotating shaft 22, the axis of rotating shaft 22 and cylinder body 2 axis normal, and cylinder body heelpiece 21 is provided with the cross through hole 211 that adapts with rotating shaft 22, and cylinder body 2 bottoms are rotationally connected with cylinder body heelpiece 21 by rotating shaft 22 and through hole 211.
Be fixedly connected with outer cylinder sheath 212 on the described cylinder body heelpiece 21, outer cylinder sheath 212 is extended to cylinder body 2 rear ends by cylinder body 2 front ends, outer cylinder sheath 212 is enclosed in cylinder body 2 outsides, is provided with the gap between the inwall of outer cylinder sheath 212 and cylinder body 2 outer walls, and outer cylinder sheath 212 is slidingly matched with cylinder body installing hole 41.
Described bearing pin 3 quantity are 1, and the axis of bearing pin 3 axis and piston rod 1 intersects vertically in same plane, and bearing pin 3 is rotatably assorted in bearing pin 3 installing holes that piston rod 1 and base 4 relevant positions are provided with.
Be connected with joint ring 421 between described piston rod installing hole 42 holes and the piston rod 1, joint ring 421 is arranged in the joint ring draw-in groove that piston rod 1 is provided with.
Though more than combine accompanying drawing and described embodiment of the present utility model, but those of ordinary skill in the art can recognize also and make various variations in the scope to claims or modification is feasible that these modifications and variations are interpreted as within scope of the present utility model and intention.
Claims (5)
1. one kind is used to tilt and the accent push rod jack of high-dipping comprehensive mining hydraulic bracket, comprise the piston rod (1), cylinder body (2), the bearing pin (3) that are connected with the base (4) of hydraulic support, base (4) comprises base plate (43), cover plate (44), inner wall panel (45), outer body of wall (46), the front and back shrouding (47) that is mutually permanently connected and forms six body structures, inner wall panel (45) is provided with cylinder body installing hole (41), outer body of wall (46) is provided with piston rod installing hole (42), cylinder body installing hole (41) and piston rod installing hole (42) coaxial line; The part of piston rod (1) is positioned at piston rod installing hole (42), piston rod (1) its outer end by bearing pin (3) with outside body of wall (46) be connected, cylinder body (2) telescopic moving in cylinder body installing hole (41), be provided with dust-proof seal ring (411) between cylinder body installing hole (41) and the cylinder body (2), it is characterized in that: described cylinder body (2) front end is connected with cylinder body heelpiece (21), and outside push rod (5) side with hydraulic support at inner wall panel (45) of cylinder body heelpiece (21) front end flexibly connects.
2. according to claim 1ly be used to tilt and the accent push rod jack of high-dipping comprehensive mining hydraulic bracket, it is characterized in that: described cylinder body (2) bottom is provided with rotating shaft (22), the axis of rotating shaft (22) and cylinder body (2) axis normal, cylinder body heelpiece (21) is provided with the cross through hole (211) that adapts with rotating shaft (22), and cylinder body (2) bottom is rotationally connected with cylinder body heelpiece (21) by rotating shaft (22) and through hole (211).
3. according to claim 2ly be used to tilt and the accent push rod jack of high-dipping comprehensive mining hydraulic bracket, it is characterized in that: be fixedly connected with outer cylinder sheath (212) on the described cylinder body heelpiece (21), outer cylinder sheath (212) is extended to cylinder body (2) rear end by cylinder body (2) front end, outer cylinder sheath (212) is enclosed in cylinder body (2) outside, be provided with the gap between the inwall of outer cylinder sheath (212) and cylinder body (2) outer wall, outer cylinder sheath (212) is slidingly matched with cylinder body installing hole (41).
4. according to claim 1ly be used to tilt and the accent push rod jack of high-dipping comprehensive mining hydraulic bracket, it is characterized in that: described bearing pin (3) quantity is 1, the axis of bearing pin (3) axis and piston rod (1) intersects vertically in same plane, and bearing pin (3) is rotatably assorted in bearing pin (3) installing hole that piston rod (1) and base (4) relevant position are provided with.
5. according to claim 1ly be used to tilt and the accent push rod jack of high-dipping comprehensive mining hydraulic bracket, it is characterized in that: be connected with joint ring (421) between described piston rod installing hole (42) and the piston rod (1), joint ring (421) is arranged in the joint ring draw-in groove that piston rod (1) is provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205121832U CN201771531U (en) | 2010-09-01 | 2010-09-01 | Push rod adjusting jack for inclined and steeply inclined fully mechanized mining hydraulic bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205121832U CN201771531U (en) | 2010-09-01 | 2010-09-01 | Push rod adjusting jack for inclined and steeply inclined fully mechanized mining hydraulic bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201771531U true CN201771531U (en) | 2011-03-23 |
Family
ID=43751376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205121832U Expired - Lifetime CN201771531U (en) | 2010-09-01 | 2010-09-01 | Push rod adjusting jack for inclined and steeply inclined fully mechanized mining hydraulic bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201771531U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670460A (en) * | 2013-12-04 | 2014-03-26 | 郑州煤矿机械集团股份有限公司 | Hydraulic sublevel caving coal support base with moving-before-sliding device |
| CN110029675A (en) * | 2019-05-24 | 2019-07-19 | 戴向胜 | Assembled in foundation pit compensates bracing members |
-
2010
- 2010-09-01 CN CN2010205121832U patent/CN201771531U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670460A (en) * | 2013-12-04 | 2014-03-26 | 郑州煤矿机械集团股份有限公司 | Hydraulic sublevel caving coal support base with moving-before-sliding device |
| CN103670460B (en) * | 2013-12-04 | 2016-04-27 | 郑州煤矿机械集团股份有限公司 | With the Base of Cover Caving Coal Hydraulic Supports moving rear slip device |
| CN110029675A (en) * | 2019-05-24 | 2019-07-19 | 戴向胜 | Assembled in foundation pit compensates bracing members |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110323 |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Hongmei Document name: Notice of expiration of patent right |