CN103075171B - Thrust mechanism and hydraulic bracket comprising thrust mechanism - Google Patents
Thrust mechanism and hydraulic bracket comprising thrust mechanism Download PDFInfo
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- CN103075171B CN103075171B CN201210543524.6A CN201210543524A CN103075171B CN 103075171 B CN103075171 B CN 103075171B CN 201210543524 A CN201210543524 A CN 201210543524A CN 103075171 B CN103075171 B CN 103075171B
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- guide
- slide block
- advancing jack
- thrust gear
- thrust
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- 230000007246 mechanism Effects 0.000 title abstract description 8
- 210000005069 ears Anatomy 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 abstract description 5
- 239000003245 coal Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 7
- 238000005065 mining Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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Abstract
The invention discloses a thrust mechanism and a hydraulic bracket comprising the thrust mechanism. The disclosed thrust mechanism is applied to the hydraulic bracket, and comprises a thrust jack, thrust rods, a guide body and a slide block, wherein the front end of the thrust jack is in hinged connection with the thrust rod; the guide body can be fixed on a base, and a slipway which extends in a vertical direction is formed; the slide block is in sliding fit with the slipway; and the back end of the thrust jack is in hinged connection with the slide block. According to the thrust mechanism, the thrust mechanism can move relative to the base in the vertical direction along with the slide block by thrusting the back end of the jack; furthermore, the slide block can be positioned at a predetermined position close to the lower end of the slipway, so that an angle between the thrust rod and the thrust jack is kept in an appropriate range; and moreover, the thickness of the base can be reduced, so that the heights of a walking channel, a ventilation section and a passing machine are increased.
Description
Technical field
The present invention relates to coal mining passing technology, particularly a kind of thrust gear for hydraulic support, also relate to a kind of hydraulic support comprising this thrust gear.
Background technology
Hydraulic support is the support apparatus of fully-mechanized mining working, generally comprises base, back timber and thrust gear.Thrust gear generally comprises pusher rod and advancing jack; Rear end and the base of advancing jack are hinged and connected, being hinged and connected of front end and pusher rod; Pusher rod can be stretched out in the longitudinal direction under advancing jack effect, to realize passing function.The structure of pusher rod is different according to actual conditions difference; A kind of front-end and back-end of pusher rod can be connected with drag conveyor respectively, to be passed forward or backward by corresponding drag conveyor.
In coal mining process, along with base fluctuates, pusher rod can swing relative to advancing jack, and then the angle between pusher rod and advancing jack can produce respective change.In order to adapt to the change of the angle between pusher rod and advancing jack, prevent the bottom surface of advancing jack and pusher rod from bumping against, base often needs corresponding thickness, thinks the angle change headspace between pusher rod and advancing jack.When working face of coal seam height is constant, base thickness is comparatively large, just needs the height reducing walking passageway, ventilation section and the machine of mistake.
When thin seam working surface, because working face of coal seam height is lower, make walking passageway, ventilation section and cross all corresponding reduction of machine height, this, not only bad for exploitation the carrying out of work and the raising of operating efficiency, also can affect the safety of exploitation work.
Therefore, when carrying out coal mining activity, especially when carrying out coal mining activity to girdle, how while the change adapting to the angle between pusher rod and advancing jack, the thickness reducing base is the technical barrier that current those skilled in the art need to solve.
Summary of the invention
In view of this, the invention provides a kind of thrust gear for hydraulic support, utilize this thrust gear, while the change adapting to the angle between pusher rod and advancing jack, the thickness of base can be reduced.
In addition, the present invention also provides a kind of hydraulic support comprising this thrust gear.
The thrust gear provided is for hydraulic support, comprise advancing jack and pusher rod, front end and the pusher rod of described advancing jack are hinged and connected, and also comprise guide way and slide block, described guide way can be fixed on base, and forms the slideway of an in the vertical direction extension; Described slide block and described slideway are slidably matched; Rear end and the described slide block of described advancing jack are hinged and connected.
Optionally, described guide way comprises the guide pad that two lay respectively at the center line both sides of described advancing jack; Two described guide pads are respectively formed at the gathering sill that vertical direction extends; Two described gathering sills form described slideway.
Optionally, the opening of the side of a described gathering sill is relative with the opening of the side of gathering sill described in another.
Optionally, two described guide pads are symmetrical relative to the center line of described advancing jack.
Optionally, two described guide pads include front guide, back guide and junction plate; The extension direction of described front guide is parallel with the extension direction of back guide, and described junction plate is connected to the outer edge of described front guide and the outer edge of described back guide; Described gathering sill is formed between described front guide and back guide.
Optionally, described guide way also comprises locking plate, the extended surface of described locking plate and the centerline parallel of described advancing jack, and and plane-parallel; In guide pad described at least one, described front guide and back guide all form lock slots; Described locking plate inserts the lock slots of described front guide and the lock slots of back guide, and through described gathering sill.
Optionally, described guide way also comprises the fixed head with described locking plate, and described fixed head and the front surface of front guide described at least one are fixed.
Optionally, described slide block comprises slide plate, two hinged ears fixed with described slide plate front surface and a positioning strip fixing with described slide plate rear surface; Described hinged ear stretches out forward through the space two described front guides; The rear end of described advancing jack and described slide block are hinged and connected through the pin-and-hole of two hinged ears and the pin-and-hole of described advancing jack rear end by a bearing pin; Described positioning strip dual-side is slidably matched with the inner side edge of two described back guides respectively.
Optionally, the cylinder body of described advancing jack and piston rod are hinged and connected with described pusher rod and slide block respectively.
The hydraulic support provided comprises base, and also comprise any one thrust gear above-mentioned, described guide way is connected with described base.
In thrust gear provided by the invention, except comprising known advancing jack and pusher rod, also comprise guide way and slide block, described guide way is fixed on the base of hydraulic support, and forms the slideway of an in the vertical direction extension; Described slide block and described slideway are slidably matched; Rear end and the described slide block of described advancing jack are hinged and connected.Like this, the rear end of advancing jack just can be moved at vertical direction relative to base with slide block; And then, when position base is normal, slide block can be made to be positioned at the precalculated position of the lower end near slideway, to make the angle between pusher rod and advancing jack remain in OK range, prevent the bottom surface of advancing jack and pusher rod from bumping against; Base thickness so just can be made to reduce, to increase the height of walking passageway, ventilation section and the machine of mistake.Due to coal seam reason, when base is sunk, slide block can be made to move up along slideway, make the angle between pusher rod and advancing jack remain in OK range, prevent the bottom surface of advancing jack and pusher rod from bumping against.Therefore, just while the change adapting to the angle between pusher rod and advancing jack, the thickness of base can be reduced by this thrust gear.By arranging slide block, also can provide convenient for the dismounting of advancing jack, maintenance.
In further technical scheme, described guide way also comprises locking plate, and described locking plate inserts the lock slots of described front guide and the lock slots of back guide, and through described gathering sill; Like this, locking plate can limit slide position, is restricted to by slide block within predetermined scope, and anti-limited slip block and guide pad depart from the one hand, can reduce or avoid advancing jack to protrude on the walking passageway of base on the other hand, improve the safety of hydraulic support.
In further technical scheme, described slide block comprises one, the slide plate positioning strip fixing with described slide plate rear surface; Positioning strip dual-side is slidably matched with the inner side edge of two described back guides respectively.Like this, can position slide block in the lateral direction, on the one hand anti-limited slip block deflection, the shock on the other hand between anti-limited slip block and guide pad, improve the application life of thrust gear, reliability and usability.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.
Fig. 1 is the position relationship schematic diagram of a kind of thrust gear of providing of the embodiment of the present invention and base;
Fig. 2 is the structural representation of the thrust gear that the embodiment of the present invention provides;
Fig. 3 is I-I part amplification assumption diagram in Fig. 2;
In the thrust gear that Fig. 4-1 provides for inventive embodiments, the main TV structure schematic diagram of guide way;
Fig. 4-2 is the A1 direction view of Fig. 4-1;
In the thrust gear that Fig. 5 provides for the embodiment of the present invention, the structural representation of locking plate and fixed head;
In the thrust gear that Fig. 6-1 provides for the embodiment of the present invention, TV structure schematic diagram on slide block;
Fig. 6-2 is A2 direction view in Fig. 6-1.
In figure:
Base 10, thrust gear 20;
Advancing jack 100;
Pusher rod 200;
Guide way 300, slideway 301; Gathering sill 301a, lock slots 302, guide pad 310, front guide 312, back guide 311, junction plate 313, locking plate 320, fixed head 330;
Slide block 400, bearing pin 401, slide plate 410, hinged ear 420, positioning strip 430;
Center line XX.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
In presents, with hydraulic support when coal mining activity, the position of operating personnel is with reference to determining the noun of locality, " front " refer to operating personnel towards direction, " afterwards " refers to operating personnel direction dorsad, " right side " is operating personnel's right direction dorsad, and " left side " is operating personnel's left direction dorsad.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the position relationship schematic diagram of a kind of thrust gear of providing of the embodiment of the present invention and base; For the ease of public understanding, the structure of the base 10 be shown in broken lines in figure, illustrates the contour structure of the thrust gear 20 that the embodiment of the present invention provides with solid line.Fig. 2 is the structural representation of the thrust gear that the embodiment of the present invention provides; Fig. 3 is I-I part amplification assumption diagram in Fig. 2.In Fig. 1 and Fig. 2, arrow F direction indication is front, after arrow B direction indication is.
The thrust gear that embodiment provides, for hydraulic support, can comprise advancing jack 100 and pusher rod 200, and the front end of advancing jack 100 and the suitable part of pusher rod 200 are hinged and connected.In addition, this thrust gear also comprises guide way 300 and slide block 400, and guide way 300 can be arranged on base 10 by known methods, to fix with base 10.The slideway 301 that an in the vertical direction extends is formed in guide way 300.Slide block 400 and slideway 301 are slidably matched, and then slide block 400 can slide in the vertical direction relative to base 10; Rear end and the slide block 400 of advancing jack 100 are hinged and connected, and like this, advancing jack 100 just can rotate predetermined angle relative to slide block 400.
When utilizing above-mentioned thrust gear, because the rear end of advancing jack 100 just can be moved at vertical direction relative to base 10 with slide block 400; And then, when base 10 position is normal, slide block 400 can be made to be positioned at the precalculated position of the lower end near slideway 301, to make the angle between pusher rod 200 and advancing jack 100 remain in OK range, prevent the bottom surface of advancing jack 100 and pusher rod 200 from bumping against; Base 10 thickness so just can be made to reduce, to increase the height of walking passageway above base 10, ventilation section and the machine of mistake.Due to coal seam reason, when base 10 is sunk, slide block 400 can be made to move up along slideway 301, make the angle between pusher rod 200 and advancing jack 100 remain in OK range, prevent the bottom surface of advancing jack 100 and pusher rod 200 from bumping against.Therefore, just while the change adapting to the angle between pusher rod and advancing jack, the thickness of base 10 can be reduced by this thrust gear.By arranging slide block 400, also can provide convenient for the dismounting of advancing jack, maintenance.
The mode forming slideway 301 also has multiple, and slideway 301 can be existing slideway structure.Incorporated by reference to Fig. 2 and Fig. 3, and with reference to figure 4-1 and Fig. 4-2; In the thrust gear that Fig. 4-1 provides for inventive embodiments, the main TV structure schematic diagram of guide way, Fig. 4-2 is the A1 direction view of Fig. 4-1.Guide way 300 comprises the guide pad 310 that two lay respectively at the center line XX both sides of advancing jack 100.Wherein two guide pads 310 are respectively formed at the gathering sill 301a that vertical direction extends; Two gathering sill 301a are slidably matched with the appropriate section of slide block 400 respectively, and two gathering sill 301a form above-mentioned slideway 301.The structure of gathering sill 301a can actually in the longitudinal direction be located slide block 400.
In the embodiment of the present invention, two guide pads 310 can be symmetrical relative to center line XX, and the opening of the side of a gathering sill 301a is relative with the opening of the side of another gathering sill 301a; Like this, two gathering sill 301a form " one " font slideway 301.
The structure forming gathering sill 301a and gathering sill 301a can be determined according to actual needs.In the present embodiment, two guide pads 310 include front guide 312, back guide 311 and junction plate 313; The extension direction of front guide 312 is parallel with the extension direction of back guide 311, (" outward " determines based on center line XX is relative the outer edge of the outer edge that junction plate 313 is connected to front guide 312 and back guide 311, being outward away from center line XX, on the contrary, is interior near center line XX); Above-mentioned gathering sill 301a is formed between front guide 312 and back guide 311.In order to ensure the intensity of guide way 300, the guide pad 310 junction plate 300a that all leads with can be made to be connected, specifically, two back guides 311 can be made all to be fixedly linked with guiding junction plate 300a front surface.
In the thrust gear that composition graphs 3 and Fig. 5, Fig. 5 provide for the embodiment of the present invention, the structural representation of locking plate and fixed head.In order to limit the extreme position of slide block 400 at above-below direction, guide way 300 also comprises locking plate 320, and the extended surface of locking plate 320 can be parallel with the center line XX of advancing jack 100, and with the direction of plane-parallel on extend; And in each guide pad 310, front guide 312 and back guide 311 all form lock slots 302; Locking plate 320 inserts the lock slots 302 of front guide 312 and the lock slots 302 of back guide 311, and through gathering sill 301a.Like this, locking plate 320 just defines one and carries out spacing position-limit mechanism to slide block 400.In optimal technical scheme, lock slots 302 can be made to arrange near the upper end of gathering sill 301a; And then, slide block 400 can be restricted within predetermined scope by locking plate 320, anti-limited slip block 400 departs from guide pad 310 on the one hand, can reduce or avoid advancing jack 100 to protrude on the walking passageway of base 10 on the other hand, improves the safety of hydraulic support.Certainly, gathering sill 301a also can be provided with suitable position according to actual needs, to make locking plate 320 be positioned at suitable position, is limited within predetermined scope by slide block 400.Fixing for the ease of locking plate 320, also comprises the fixed head 330 with locking plate 320, and fixed head 330 is fixed with the front surface of at least one front guide 312, preferably all fixing with the front surface of two front guides 312.Can ensure like this fixing reliability of locking plate 320.The mode that fixed head 330 is fixed with the front surface of front guide 312 can be determined according to actual needs, in the present embodiment, by threaded components, fixed head 330 is fixed with front guide 312, can provide convenience for slide block 400 and advancing jack 100 demolition, repair, replacement like this, fix preferably by bolt.
The present embodiment is optimal technical scheme, and locking plate 320 is one-body molded with fixed head 330, forms a L shaped plate.
Incorporated by reference to Fig. 3, and in the thrust gear provided for the embodiment of the present invention with reference to figure 6-1 and Fig. 6-2, Fig. 6-1, TV structure schematic diagram on slide block, Fig. 6-2 is A2 direction view in Fig. 6-1.Slide block 400 can comprise the hinged ear 420 of 410, two, slide plate and a positioning strip 430.The bearing of trend of slide plate 410 can be vertical with center line XX.Two hinged ears 420 can all be fixed with slide plate 410 front surface, and extend in parallel forward.Positioning strip 430 also stretches out backward with slide plate 410 rear surface is fixing.Wherein, two hinged ears 420 can stretch out forward through the space two front guides 312; The rear end of advancing jack 100 and slide block 400 are hinged and connected through the pin-and-hole 421 of two hinged ears 420 and the pin-and-hole of advancing jack 100 rear end by a bearing pin 401.Positioning strip 430 dual-side is slidably matched with the inner side edge of two back guides 311 respectively.Like this, can position slide block 400 in the lateral direction, on the one hand anti-limited slip block 400 deflection, the shock on the other hand between anti-limited slip block 400 and guide pad 310, improve the application life of thrust gear, reliability and usability.
The concrete mounting means of advancing jack 100 can be selected according to actual needs, and piston rod and cylinder body can be made to be hinged and connected with pusher rod 200 and slide block 400 respectively, and cylinder body and piston rod also can be made to be hinged and connected with pusher rod 200 and slide block 400 respectively.
On the basis providing above-mentioned thrust gear, one embodiment of the present of invention also provide a kind of hydraulic support, comprise base 10, and this hydraulic support also comprises any one thrust gear 20 above-mentioned, and wherein, guide way 300 can be connected with base 10 by known methods.Owing to having above-mentioned thrust gear, hydraulic support also has the technique effect of tackling mutually.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a thrust gear, for hydraulic support, comprise advancing jack (100) and pusher rod (200), front end and the pusher rod (200) of described advancing jack (100) are hinged and connected, it is characterized in that, also comprise guide way (300) and slide block (400), described guide way (300) can be fixed on base (10), and forms the slideway (301) of in the vertical direction extension; Described slide block (400) and described slideway (301) are slidably matched; Rear end and the described slide block (400) of described advancing jack (100) are hinged and connected;
Described guide way (300) comprises the guide pad (310) that two lay respectively at center line (XX) both sides of described advancing jack (100); Two described guide pads (310) are respectively formed at the gathering sill (301a) that vertical direction extends; Two described gathering sills (301a) form described slideway (301).
2. thrust gear according to claim 1, is characterized in that, the opening of the side of a described gathering sill (301a) is relative with the opening of the side of gathering sill described in another (301a).
3. thrust gear according to claim 2, is characterized in that, two described guide pads (310) are symmetrical relative to the center line (XX) of described advancing jack (100).
4. thrust gear according to claim 1, is characterized in that, two described guide pads (310) include front guide (312), back guide (311) and junction plate (313); The extension direction of described front guide (312) is parallel with the extension direction of back guide (311), and described junction plate (313) is connected to the outer edge of described front guide (312) and the outer edge of described back guide (311); Described gathering sill (301a) is formed between described front guide (312) and back guide (311).
5. thrust gear according to claim 4, it is characterized in that, described guide way (300) also comprises locking plate (320), the extended surface of described locking plate (320) is parallel with the center line (XX) of described advancing jack (100), and and plane-parallel; In guide pad described at least one (310), described front guide (312) and back guide (311) all form lock slots (302); Described locking plate (320) inserts the lock slots (302) of described front guide (312) and the lock slots (302) of back guide (311), and through described gathering sill (301a).
6. thrust gear according to claim 5, it is characterized in that, described guide way (300) also comprises the fixed head (330) be connected with described locking plate (320), and described fixed head (330) is fixed with the front surface of front guide (312) described at least one.
7. the thrust gear according to claim 4,5 or 6, it is characterized in that, described slide block (400) comprises slide plate (410), two hinged ears (420) fixing with described slide plate (410) front surface and a positioning strip (430) fixed with described slide plate (410) rear surface; Described hinged ear (420) is stretched out forward through the space two described front guides (312); The rear end of described advancing jack (100) and described slide block (400) are hinged and connected through the pin-and-hole (421) of two hinged ears (420) and the pin-and-hole of described advancing jack (100) rear end by a bearing pin (401); Described positioning strip (430) dual-side is slidably matched with the inner side edge of two described back guides (311) respectively.
8. the thrust gear according to any one of claim 1 to 6, is characterized in that, the cylinder body of described advancing jack (100) and piston rod are hinged and connected with described pusher rod (200) and slide block (400) respectively.
9. a hydraulic support, comprises base (10), it is characterized in that, also comprise the thrust gear (20) described in any one of claim 1 to 8, described guide way (300) is connected with described base (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210543524.6A CN103075171B (en) | 2012-12-14 | 2012-12-14 | Thrust mechanism and hydraulic bracket comprising thrust mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210543524.6A CN103075171B (en) | 2012-12-14 | 2012-12-14 | Thrust mechanism and hydraulic bracket comprising thrust mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103075171A CN103075171A (en) | 2013-05-01 |
| CN103075171B true CN103075171B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210543524.6A Expired - Fee Related CN103075171B (en) | 2012-12-14 | 2012-12-14 | Thrust mechanism and hydraulic bracket comprising thrust mechanism |
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| CN (1) | CN103075171B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701215B (en) * | 2017-12-01 | 2021-05-07 | 朱元彬 | Fully-mechanized mining hydraulic support forward moving connecting piece |
| CN114427475B (en) * | 2021-12-28 | 2024-12-06 | 煤科(北京)检测技术有限公司 | Test push-pull rack device and method of using the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777200A (en) * | 2012-05-30 | 2012-11-14 | 三一重型装备有限公司 | Hydraulic support pushing mechanism and hydraulic support |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3952525A (en) * | 1973-10-18 | 1976-04-27 | Dowty Mining Equipment Limited | Mine roof support |
| RU2012819C1 (en) * | 1992-07-15 | 1994-05-15 | Вячеслав Викторович Вавилов | Device for raising base of powered support unit |
| CN2502937Y (en) * | 2001-11-05 | 2002-07-31 | 王树生 | Double-rail-cavity transistion switching device |
| CN2837163Y (en) * | 2005-09-08 | 2006-11-15 | 武汉理工大学 | Rerailer for track car |
| CN202138547U (en) * | 2010-12-09 | 2012-02-08 | 山东泉林包装有限公司 | Longitudinal seal repairing device used for filling machine |
| CN102226410A (en) * | 2011-05-24 | 2011-10-26 | 中煤北京煤矿机械有限责任公司 | Hydraulic support advancing mechanism and thin coal seam hydraulic support |
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2012
- 2012-12-14 CN CN201210543524.6A patent/CN103075171B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777200A (en) * | 2012-05-30 | 2012-11-14 | 三一重型装备有限公司 | Hydraulic support pushing mechanism and hydraulic support |
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| CN103075171A (en) | 2013-05-01 |
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