CN201412145Y - Tunneling machine with cantilever type forepoling bar supporting device - Google Patents
Tunneling machine with cantilever type forepoling bar supporting device Download PDFInfo
- Publication number
- CN201412145Y CN201412145Y CN2009201029938U CN200920102993U CN201412145Y CN 201412145 Y CN201412145 Y CN 201412145Y CN 2009201029938 U CN2009201029938 U CN 2009201029938U CN 200920102993 U CN200920102993 U CN 200920102993U CN 201412145 Y CN201412145 Y CN 201412145Y
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- hinged
- base
- joist
- supporting
- development machine
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Abstract
The utility model relates to a tunneling machine, in particular to a tunneling machine with a cantilever type forepoling bar supporting device, which solves the problem of the prior tunneling machinewithout a supporting device. The tunneling machine comprises a front cantilever and a decelerating device positioned on the front cantilever; a forepoling bar base is sleeved on the outer wall of thedecelerating device, expansion brackets are hinged on the left and the right sides of the forepoling bar base, and are respectively formed through a supporting plate and two supporting legs fixed below the supporting plate; a rotary beam is hinged at the front end of the upper surface of the forepoling bar base, and the other end of the rotary beam is penetrated through a rotating shaft which is perpendicular thereto; supporting beam bases are respectively fixed at both ends of the rotating shaft, grooves in which supporting beams are hinged are formed on the supporting beam base, expansion bracket jacks are respectively hinged between the bottom parts on two sides of the forepoling bar base and the expansion brackets, rotary beam jacks are respectively arranged between the supporting plates of the extension brackets and the rotary beam, and a supporting beam jack is hinged between the rotary beam and the rotating shaft. The tunneling machine reduces the supporting time, has low laborintensity, and effectively enhances the safety factors.
Description
Technical field
The utility model relates to development machine, is specially a kind of development machine with cantilevered front canopy support device.
Background technology
Because the particular surroundings of colliery downhole production, driving is the same with coal mining, in construction equally all kinds of accidents may take place, the roof accident of driving face accounts for 20% of the total roof accident in colliery, roof accident mainly is after the down-hole is dug, can form a tunnel, because the effect that press on ground, the rock crown in this exposed tunnel can sink, emit dew.For preventing the generation of this type of accident, supporting must be carried out in the tunnel.
Mainly be divided into cut and supporting two big flow charts when development machine carries out the tunnelling operation, the digging laneway cutting speed is generally very fast, and the supporting activity duration is relatively long, and aided process is many.The supporting operation mainly is to adopt the bolt support mode at present, have that supporting effect is good, low cost and other advantages, but before bolt support, empty top time length causes top board generation sedimentation absciss layer and distortion in the tunnel in order to avoid, temporary lining before the bolt support also is vital, the temporary lining of generally adopting now realizes temporary lining by friction prop or " U " type leg metal roof bar, but this kind temporary lining mode exists the enforcement time long, have a strong impact on support speed, and labor strength is big, safety factor is low.All can not satisfy China's coal-mine machine pick tunnel at present both at home and abroad and realize many anchors of pick and the high development machine of mechanization degree with suspension device.
Summary of the invention
The utility model is in order to solve the development machine that does not have at present suspension device, and the problem that the existing temporary support device enforcement time is long and labour intensity is big, safety factor is low provides a kind of development machine with cantilevered front canopy support device.
The utility model is to adopt following technical scheme to realize: the development machine with cantilevered front canopy support device, comprise front boom and the deceleration device that is positioned on the front boom, be with on the deceleration device outer wall and visit the beam base, visit the beam base left and right sides and be hinged with expansion bracket, expansion bracket is made up of gripper shoe and two supporting legs that are fixed on the gripper shoe below, two supporting legs of expansion bracket are hinged with the both sides of visiting the beam base, visit beam base upper surface front end and be hinged with rotating beam, the other end of rotating beam is installed with perpendicular axis of rotation, rotating shaft terminal all is fixed with the joist base, have groove on the joist base and in groove, be hinged with joist, it is very heavy all to be hinged with expansion bracket between the supporting leg of spy beam base two side bottoms and expansion bracket, it is very heavy to be hinged with the rotating beam that lays respectively at the rotating beam both sides between the gripper shoe of expansion bracket and the rotating beam, and it is very heavy to be hinged with joist between rotating beam and the axis of rotation.During work, hydraulic-driven by development machine makes that rotating beam is very heavy stretchs out, one end of rotating beam rotates to certain altitude around the hinged place, it is very heavy to stretch out expansion bracket then, the gripper shoe that promotes expansion bracket rotates to the relevant position, at this moment rotating beam arrives the supporting position under the promotion of the gripper shoe of expansion bracket, joist is very heavy then progressively regains, the rotation of pulling axis of rotation, thereby driving the joist base rotates in its notch this process when making progress, the groove of joist on the joist base of the effect lower edge of gravity progressively rotates to expansion, promotion development machine forestope then, steadily joist is attached to the effect of playing supporting under the empty top zone top board; When not working, earlier the front boom of development machine is fallen 100-200mm, stretch out joist very heavy make the joist base notches progressively downwards the time joist under the effect of gravity, regain, shrink very heavy and very heavy rotating beam and the expansion bracket of making of expansion bracket of rotating beam then and regain, do not influence the cut operation of development machine.
Rotating beam is made up of with the top board that is connected two crossbeams two crossbeams, and the top board soffit is provided with three hinged seats, and the hinged seat that is positioned at the top board rear side is used for joist very heavy hinged, and all the other two hinged seats are used for very heavy hinged with rotating beam respectively.Rotating beam adopts said structure, makes front end supporting rotating shaft more reliably first, makes second that joist is very heavy, rotating beam is very heavy realizes hinged with rotating beam with rational structure more, thereby makes the complete machine structure design more reasonable.
Be with rotary sleeve in the middle of the axis of rotation, have the pin-and-hole that bearing pin can pass on rotary sleeve and the axis of rotation and on rotary sleeve, be fixed with hinged seat, realize hinged between very heavy of axis of rotation and joist by rotary sleeve, then by the flexible very heavy rotation that realizes axis of rotation of joist, this structure design not only is convenient to dismounting maintenance, and makes the very heavy articulated structure of axis of rotation and joist more reasonable.
The two ends of axis of rotation all are with adapter sleeve, one end of adapter sleeve and the axis of rotation corresponding with it is provided with the pin-and-hole that bearing pin can pass, adapter sleeve outer end (promptly near joist base one end) and the welding of joist base, when slotting write off axle, adapter sleeve and can conveniently adorn with the joist base of its welding and to get replacement, having prevented effectively needs the whole cost that causes of replacing to waste because of a certain associated components damages.
Visiting the beam base is made up of pedestal and base plate, place, four angles, pedestal bottom is equipped with screw, have the pass through bolted screw corresponding on the base plate with the pedestal screwhole position, during installation pedestal is buckled on the deceleration device of forestope, with bolt pedestal and base plate are linked together, to realize that visiting the beam base is fixed on the deceleration device of development machine front boom tightly.
The utility model is installed in the front canopy support device on the deceleration device of development machine front boom, bit selecting is reasonable, supporting simple, it is big to have the anchor pole working space under the situation of the motion of not disturbing development machine and cut, loading operation, under the situation of top board conditions permit, can realize the many anchors of a pick, and the mechanization degree height, easy to operate, supporting is quick, safe and reliable, be convenient to the down-hole and install, remove and maintenance; Shorten the preceding temporary lining time of bolt support simultaneously, improved the comprehensive drill footage per month in machine pick tunnel effectively, relaxed the contradiction of the ubiquitous debalance of preparation and winning work in present colliery.Record according to test, the down-hole driving speed rises to the present 400m/ month by the original 300m/ month; Further, working strength of workers reduces widely when bolt support, and safety guarantee is arranged, and reduces the generation of roof fall accident effectively.
Description of drawings
Fig. 1 is the structural representation of cantilevered front canopy support device in the utility model;
Fig. 2 is a front view of visiting the beam base among Fig. 1;
Fig. 3 is a vertical view of visiting the beam base among Fig. 1;
Fig. 4 is the front view of rotating beam among Fig. 1;
Fig. 5 is the vertical view of rotating beam among Fig. 1;
Fig. 6 is the front view of expansion bracket among Fig. 1;
Fig. 7 is the left view of expansion bracket among Fig. 1;
Fig. 8 is the partial structurtes schematic diagram of Fig. 1.
Fig. 9 is overall structure signal and the user mode figure with development machine of cantilevered front canopy support device described in the utility model.
1-visits the beam base among the figure, the 2-expansion bracket, and the 3-rotating beam, the 4-joist, 5-joist base, the 6-expansion bracket is very heavy, the 7-rotating beam is very heavy, and the 8-joist is very heavy, 9-hinged seat, 10-axis of rotation, 11-pedestal, 12-base plate, the 13-crossbeam, 14-top board, 15 rotary sleeves, 16-adapter sleeve, 17-hinged seat.
The specific embodiment
Development machine with cantilevered front canopy support device, comprise front boom and the deceleration device that is positioned on the front boom, be with on the deceleration device outer wall and visit beam base 1, visit beam base 1 left and right sides and be hinged with expansion bracket 2, expansion bracket 2 is made up of gripper shoe and two supporting legs that are fixed on the gripper shoe below, two supporting legs of expansion bracket 2 are hinged with the both sides of visiting beam base 1, visit beam base 1 upper surface front end and be hinged with rotating beam 3, the other end of rotating beam 3 is installed with perpendicular axis of rotation 10, axis of rotation 10 two ends all are fixed with joist base 5, have groove on the joist base 5 and in groove, be hinged with joist 4, all be hinged with expansion bracket very heavy 6 between the supporting leg of spy 1 liang of side bottom of beam base and expansion bracket 2, it is very heavy 7 to be hinged with the rotating beam that lays respectively at rotating beam 3 both sides between the gripper shoe of expansion bracket 2 and the rotating beam 3, is hinged with joist very heavy 8 between rotating beam 3 and the axis of rotation 10.During concrete enforcement, rotating beam 3 is made up of with the top board 14 that is connected two crossbeams two crossbeams 13, and top board 14 soffits are provided with three hinged seats 9; Be with rotary sleeve 15 in the middle of the axis of rotation 10, have the pin-and-hole that bearing pin can pass on rotary sleeve 15 and the axis of rotation 10 and on rotary sleeve 15, be fixed with hinged seat 17; The two ends of axis of rotation 10 all are with adapter sleeve 16, and an end of adapter sleeve 16 and the axis of rotation 10 corresponding with it is provided with the pin-and-hole that bearing pin can pass, adapter sleeve 16 outer ends and 5 welding of joist base; Visit beam base 1 and be made up of pedestal 11 and base plate 12, place, four angles, pedestal 11 bottoms is equipped with screw, has the pass through bolted screw corresponding with pedestal 11 screwhole positions on the base plate 12; Joist 4 is hollow rectangular structure, and this structure design can make the intensity of joist increase greatly; The groove both sides of joist base 5 are provided with the pin-and-hole of position correspondence, bearing pin can be penetrated joist 4 ends and joist base 5 like this, so that both realize is hinged, make the rotation of joist 4 more flexible, structure is more reliable, simultaneously two supporting legs of expansion bracket 2 and the bottom-hinged place, both sides of visiting beam base 1, visit the hinged place of beam base 1 upper surface front end and rotating beam 3, the hinged place of the gripper shoe of expansion bracket 2 and rotating beam 3, the hinged place of rotating beam 3 and axis of rotation 10 all can be realized hingedly by being welded with hinged seat, and hinged seat is made up of two connection legs and the bearing pin that passes connection leg.During work, the excavation operation of development machine and supporting operation hocket, and after coal cutting finishes, cutting head of roadheader are reduced to the bottom surface, and development machine stops operation, and retreats 700-800mm (leaving certain space to support work), and the locking cutting motor guarantees that it does not power; Suspension device is started working, by the hydraulic power source of development machine itself via the controlled hydraulic valve group of front canopy support device (controlled hydraulic valve group for mechanically common structure), driving rotating beam very heavy 7 then stretchs out, rotating beam 3 is that the center rotates to certain altitude with rotating beam 3 with the hinged place of visiting beam base 1 upper surface front end, stretch out expansion bracket very heavy 6 then, the gripper shoe of promotion expansion bracket 2 is that the center rotates to the relevant position with two supporting legs of expansion bracket 2 with the hinged place of visiting beam base 1 both sides, at this moment rotating beam 3 arrives the supporting position under the promotion of gripper shoe, joist very heavy 8 is progressively regained then, 10 rotations of pulling axis of rotation, thereby driving joist base 5 rotates in its notch this process when making progress, joist 4 under the effect of gravity with the bearing pin on the joist base 5 serve as the axle progressively rotate to expansion along the groove on the joist base 5, promotion development machine forestope then, steadily joist 4 is attached to the effect of playing supporting under the empty top zone top board; When not working, earlier the front boom of development machine is fallen 100-200mm, stretch out then joist very heavy 8 make joist base 5 notches progressively downwards the time joist 4 under the effect of gravity, regain, shrink rotating beam very heavy 7 and expansion bracket very heavy 6 then rotating beam 3 and expansion bracket 2 are regained, do not influence the cut operation of development machine.At this moment close the hydraulic power source of development machine, the development machine coal cutting driving of beginning next round.
Claims (10)
1, a kind of development machine with cantilevered front canopy support device, comprise front boom and the deceleration device that is positioned on the front boom, it is characterized in that: be with on the deceleration device outer wall and visit beam base (1), visit beam base (1) left and right sides and be hinged with expansion bracket (2), expansion bracket (2) is made up of gripper shoe and two supporting legs that are fixed on the gripper shoe below, two supporting legs of expansion bracket (2) are hinged with the both sides of visiting beam base (1), visit beam base (1) upper surface front end and be hinged with rotating beam (3), the other end of rotating beam (3) is installed with perpendicular axis of rotation (10), axis of rotation (10) two ends all are fixed with joist base (5), have groove on the joist base (5) and in groove, be hinged with joist (4), all be hinged with expansion bracket very heavy (6) between the supporting leg of spy beam base (1) two side bottom and expansion bracket (2), be hinged with the rotating beam very heavy (7) that lays respectively at rotating beam (3) both sides between the gripper shoe of expansion bracket (2) and the rotating beam (3), be hinged with joist very heavy (8) between rotating beam (3) and the axis of rotation (10).
2, the development machine with cantilevered front canopy support device according to claim 1 is characterized in that: rotating beam (3) is made up of with the top board that is connected two crossbeams (14) two crossbeams (13), and top board (14) soffit is provided with three hinged seats (9).
3, the development machine with cantilevered front canopy support device according to claim 1 and 2, it is characterized in that: is with rotary sleeve (15) in the middle of the axis of rotation (10), has the pin-and-hole that bearing pin can pass on rotary sleeve (15) and the axis of rotation (10) and on rotary sleeve (15), be fixed with hinged seat (17).
4, the development machine with cantilevered front canopy support device according to claim 1 and 2, it is characterized in that: the two ends of axis of rotation (10) all are with adapter sleeve (16), one end of adapter sleeve (16) and the axis of rotation (10) corresponding with it is provided with the pin-and-hole that bearing pin can pass, adapter sleeve (16) outer end and joist base (5) welding.
5, the development machine with cantilevered front canopy support device according to claim 3, it is characterized in that: the two ends of axis of rotation (10) all are with adapter sleeve (16), one end of adapter sleeve (16) and the axis of rotation (10) corresponding with it is provided with the pin-and-hole that bearing pin can pass, adapter sleeve (16) outer end and joist base (5) welding.
6, the development machine with cantilevered front canopy support device according to claim 1 and 2, it is characterized in that: visit beam base (1) and form by pedestal (11) and base plate (12), place, four angles, pedestal (11) bottom is equipped with screw, has the pass through bolted screw corresponding with pedestal (11) screwhole position on the base plate (12).
7, the development machine with cantilevered front canopy support device according to claim 3, it is characterized in that: visit beam base (1) and form by pedestal (11) and base plate (12), place, four angles, pedestal (11) bottom is equipped with screw, has the pass through bolted screw corresponding with pedestal (11) screwhole position on the base plate (12).
8, the development machine with cantilevered front canopy support device according to claim 4, it is characterized in that: visit beam base (1) and form by pedestal (11) and base plate (12), place, four angles, pedestal (11) bottom is equipped with screw, has the pass through bolted screw corresponding with pedestal (11) screwhole position on the base plate (12).
9, the development machine with cantilevered front canopy support device according to claim 1 and 2 is characterized in that: joist (4) is hollow rectangular structure.
10, the development machine with cantilevered front canopy support device according to claim 3 is characterized in that: joist (4) is hollow rectangular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201029938U CN201412145Y (en) | 2009-05-26 | 2009-05-26 | Tunneling machine with cantilever type forepoling bar supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201029938U CN201412145Y (en) | 2009-05-26 | 2009-05-26 | Tunneling machine with cantilever type forepoling bar supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201412145Y true CN201412145Y (en) | 2010-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201029938U Expired - Lifetime CN201412145Y (en) | 2009-05-26 | 2009-05-26 | Tunneling machine with cantilever type forepoling bar supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201412145Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863585A (en) * | 2015-04-28 | 2015-08-26 | 四川达竹煤电(集团)有限责任公司柏林煤矿 | Thin and ultrathin coal seam coal mining face non-gap feeding complete device |
-
2009
- 2009-05-26 CN CN2009201029938U patent/CN201412145Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863585A (en) * | 2015-04-28 | 2015-08-26 | 四川达竹煤电(集团)有限责任公司柏林煤矿 | Thin and ultrathin coal seam coal mining face non-gap feeding complete device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shanxi Jincheng Anthracite Mining Group Jinding Stoker Mining Co.,Ltd. Assignor: Shanxi Jincheng Anthracite Mining Industry Group Co., Ltd. Contract record no.: 2010990000289 Denomination of utility model: Heading machine provided with cantilever type front canopy supporting protection device Granted publication date: 20100224 License type: Exclusive License Record date: 20100518 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20100224 Effective date of abandoning: 20090526 |