CN102913265B - Circularly self-moving forepoling hydraulic support - Google Patents
Circularly self-moving forepoling hydraulic support Download PDFInfo
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- CN102913265B CN102913265B CN201110222503.XA CN201110222503A CN102913265B CN 102913265 B CN102913265 B CN 102913265B CN 201110222503 A CN201110222503 A CN 201110222503A CN 102913265 B CN102913265 B CN 102913265B
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Abstract
The invention discloses a circularly self-moving forepoling hydraulic support, which comprises a rail assembly, a supporting beam assembly, a supporting beam assembly moving device and a supporting beam assembly contracting and releasing device, wherein the supporting beam assembly comprises supporting beams, connecting beams, telescopic jacks and upright columns; both ends of the telescopic jacks are respectively hinged on the connecting beams and the supporting beams; the rail assembly is arranged between two upright columns of the supporting beam assembly; the supporting beam assembly moving device comprises a drive, a driving device and a connecting device; the rail assembly comprises rails and rail moving devices arranged on the rails; connecting ends of the connecting devices and the supporting beam assembly are provided with a revolute pair; and the supporting beam assembly contracting and releasing device is arranged on the rails. The circularly self-moving forepoling hydraulic support can support a tunnel roof during coal mining, can further be automatically moved and lifted, and is high in support moving speed.
Description
Technical field
The present invention relates to underground coal mine comprehensive mechanical coal mining roadway support equipment, specifically a kind of circulating self-moving forepoling hydraulic support.
Background technology
Rich coal resources in China, fully-mechanized mining equipment is ripe, coal winning technology is gradually improved, in short supply along with the energy, the quickening day by day of coal in China exploitation paces, so higher requirement be it is also proposed to the movement of the support in tunnel, such as require that support can move frame automatically, to accelerate advancing velocity, tunnel is effectively supported, supporting measure before adopting can not adapt to the speed of exploitation now, and security performance is unstable.Applicant is in China's practical new patent " Self-advancing gate road advance support bracket " (on 07 13rd, 2009 applying date of application in 2009, authorized announcement date on 05 12nd, 2010, Authorization Notice No. CN 201460937U), this support frame can realize automatically moving frame, but it adopts step type moving manner, the advancing velocity of this support is also lower.
Summary of the invention
The object of the present invention is to provide a kind of circulating self-moving forepoling hydraulic support, it is comparatively slow that described this circulating self-moving forepoling hydraulic support will solve laneway support bracket advancing velocity in prior art, can not meet the technical problem of the requirement that coal mining speed improves.
Basic ideas of the present invention are, adopt rail-guided brace summer assembly to be moved, making to form moving sets between brace summer assembly and track, then when needing to move frame, last being organized brace summer assembly along rail moving to track foremost, simultaneously track also corresponding movement step pitch.
The object of the invention is to be achieved through the following technical solutions: it comprises rail assembly, brace summer assembly, brace summer assembly mobile device and brace summer assembly draw off gear, brace summer assembly comprises brace summer, tie-beam, telescopic jack and double-telescopic upright post are formed, a tie-beam is respectively provided with at brace summer two ends, sliding pair is along its length provided with between tie-beam and brace summer, telescopic jack two ends are articulated with on tie-beam and brace summer respectively, the outer end of tie-beam and double-telescopic upright post upper end thereof, double-telescopic upright post is in vertically arranging, this circulating self-moving forepoling hydraulic support comprises the brace summer assembly that at least three group side by side parallel are arranged, spacing is provided with between two adjacent groups brace summer assembly, described rail assembly is located between two columns of brace summer assembly, this brace summer assembly mobile device comprises driver, transmission device and linkage, driver and transmission device are located on rail assembly, linkage one end is connected with transmission device, the linkage other end is connected with brace summer assembly, rail assembly comprises track and rail moving device, rail moving device is located on track, the length of track is greater than the distance between brace summer assembly foremost and the brace summer assembly of rearmost end, linkage and brace summer assembly link are provided with revolute pair, brace summer assembly draw off gear is located on track.
Track is made up of left i-beam structure and right i-beam structure side by side parallel, the upper side and lower side of this left i-beam structure and right i-beam structure forms guide rail, this left i-beam structure and right i-beam structure two ends are provided with arc structure, the guide rail of its upper side and lower side is connected by this arc structure, spacing is provided with between this left i-beam structure and right i-beam structure, brace summer is provided with revolution contiguous block, this revolution contiguous block is provided with roller, roller matches with guide rail, described transmission device comprises front end axle, rear end axle, move frame sprocket wheel, move frame chain, drive sprocket, first driven sprocket and chain drive-belt are formed, the front end of this left i-beam structure and right i-beam structure is provided with front end axle by bearing, the rear end of this left i-beam structure and right i-beam structure is provided with rear end axle by bearing, described driver is provided at the hydraulic motor between left i-beam structure and right i-beam structure, hydraulic motor output shaft is connected with drive sprocket, the two ends of front end axle and rear end axle are connected with by key moves frame sprocket wheel, moving frame sprocket wheel is positioned at outside track, the moving to be provided with between frame sprocket wheel of this front end axle and rear end axle moves frame chain, the first driven sprocket is provided with by key in the middle part of the axle of front end, chain drive-belt is provided with between drive sprocket and the first driven sprocket, described linkage is made up of link and hook, respectively hook is provided with at the two ends of link, hook is in tabular, revolute pair is provided with between hook and link two ends, hook is provided with tooth, tooth on hook with move frame chain and match, in warp architecture in the middle part of link, and be positioned at and move below frame chain, brace summer assembly draw off gear comprises advancing jack and pusher dog, second chain and the second sprocket wheel, pusher dog is provided with circular arc recess, this circular arc recess matches with the face of cylinder in the middle part of brace summer, a described brace summer assembly draw off gear is equipped with in track front-end and back-end, in the brace summer assembly draw off gear of track front end, pusher dog is sheathed in the middle part of the axle of front end rotationally, in the brace summer assembly draw off gear of track rear end, pusher dog is sheathed in the middle part of the axle of rear end rotationally, pusher dog and front end axle and shaft connection place, rear end are also provided with the second sprocket wheel, this second sprocket wheel is fixedly connected with pusher dog, the second sprocket wheel being positioned at axle place, front end is sheathed on the axle of front end, the second sprocket wheel being positioned at axle place, rear end is sheathed on the axle of rear end, in the front-end and back-end of track, the 3rd sprocket wheel is also provided with respectively by rotating shaft in the middle part of track, the second chain is provided with between this second sprocket wheel and the 3rd sprocket wheel, this second chain is fixed with passing contiguous block, all advancing jack is hinged with between the passing contiguous block and track of track front-end and back-end, be positioned at the advancing jack of track front end, pusher dog, second sprocket wheel, 3rd sprocket wheel and the second chain form rail moving device.
Track is by front-end track, intermediate orbit and rear end track are formed, described front-end track, intermediate orbit and rear end track are formed by left i-beam structure and right i-beam structure side by side parallel, front-end track rear end is connected by circular arc otic placode with intermediate orbit front end, intermediate orbit rear end is connected by circular arc otic placode with track front end, rear end, this circular arc otic placode has semi-circular plate termination, a brace summer assembly draw off gear is provided with in the front end of front-end track, a brace summer assembly draw off gear is provided with in the rear end of rear end track, rail moving device is located on front-end track.
Described link is made up of cylindrical rod piece, " convex " shape structure of link entirety in upper opening, two described revolution contiguous blocks are provided with by two Connection Blocks in the middle part of brace summer, revolute pair is provided with between Connection Block and brace summer, Connection Block is connected with U-shaped junction button by bearing pin, U-shaped junction button is connected with revolution contiguous block by bolt, revolution contiguous block is provided with a pair roller by roller shaft, this pair roller be provided with interval, this pair roller matches with the guide rail of i-beam structure, a pair roller on these two revolution contiguous blocks coordinates with the guide rail on left i-beam structure and right i-beam structure respectively, describedly be less than distance in the middle part of brace summer between two revolution contiguous blocks in falling the width of closing end of " convex " shape hatch frame link.
Solution lock dog is fixed with in both sides, front-end track front end, this solution lock dog is flute profile, separate lock dog compressing by steel plate, the groove separating lock dog is arranged along track length direction, the groove that frame latticing is positioned at this solution lock dog is moved outside front-end track two, separating lock dog outer panel is wedge shape, the height separating lock dog outer panel rear end is less than the height of its front end, separate lock dog outer panel rear end a little less than moving frame chain, separate lock dog outer panel front end and be provided with arc notch, the circular arc portion of this arc notch matches with the rod member of link, this breach center and the vertical distance of separating between lock dog rear end are greater than the height linking up with tooth, separate lock dog interior plate and be welded with L-shaped bent plate, this bent plate is connected with front-end track by bolt.
Brace summer comprises sleeve, sleeve is made up of steel pipe, the housing taken the shape of the letter U is welded with outside sleeve stage casing, this U-shaped housing bottom lateral surface is semi-cylindrical, U-shaped case top is welded with steel plate and forms U-shaped casing, this U-shaped tank ends is welded with the first positive stop strip, this first positive stop strip forms square box, outside first positive stop strip, sleeve is also welded with the second positive stop strip, second positive stop strip forms square box, distance between this first positive stop strip and second positive stop strip is greater than the length of Connection Block, sleeve between first positive stop strip and the second positive stop strip matches with Connection Block formation revolute pair, the two ends of sleeve, be positioned at the steel plate be welded with outside the second positive stop strip along its axis, this steel plate forms square box, the cross section of this square box is less than the cross section of the second positive stop strip, the square box at sleeve two ends matches with tie-beam, the hinged ear of telescopic jack is provided with on the downside of tie-beam, the hinged ear of another telescopic jack is provided with on the downside of the casing that second positive stop strip is formed, telescopic jack two ends are hinged with the hinged ear of extensible canopy jack and the hinged ear of another telescopic jack respectively, on pusher dog circular arc recess openend inside in inclined-plane, this circular arc recess the inner is arc surface, this arc surface is 120 ° to corresponding central angle, this arc surface matches with the semi-cylindrical of U-shaped housing.
Guide strip is provided with in the middle part of brace summer and between tie-beam, the hinged ear of guide strip is coaxially provided with outside the hinged ear of another telescopic jack, with it, guide strip one end and the hinged ear of guide strip hinged, the inner side correspondence of tie-beam biside plate is provided with cantilever-shaped guide finger, be provided with slotted eye along its length in the middle part of guide strip, guide finger is positioned at slotted eye.
Pass contiguous block and comprise base plate and pressing plate, pressing plate is located on base plate by bolt, baseplate underside is provided with otic placode and advancing jack is hinged, base plate two ends upper side is provided with at least two arc pits, the cambered surface axis of these two pits is along floor length direction, distance between these two pit centres is equal with the pitch of the second chain, correspondingly also be provided with arc pit at pressing plate downside correspondence position, second chain is respectively provided with in pusher dog both sides, in the space that the arc pit that second chain of pusher dog both sides lays respectively at pressing plate and base plate is formed, be fixedly connected with between second chain with passing contiguous block.
At front-end track, intermediate orbit and track both sides, rear end are respectively fixed with moves frame chain guide structure, move frame chain guide structure and comprise chain gathering sill and lower chain gathering sill, upper chain gathering sill and lower chain gathering sill form by steel plate compacting, upper chain gathering sill and lower chain gathering sill are fixed together by bracing frame, bracing frame is by bolt and front-end track, intermediate orbit is connected with rear end track, epimere moves frame chain and is positioned at chain gathering sill, hypomere moves frame chain and is positioned at lower chain gathering sill, in the downside of this bathtub construction, be positioned at its opening part and be also provided with separation prevention bar along its length, the height of separation prevention bar is less than the height of chain.
With front-end track, intermediate orbit is corresponding with rear end track, upper chain gathering sill is also by chain gathering sill on leading portion, on stage casing, on chain gathering sill and back segment, chain gathering sill is formed, lower chain gathering sill is by leading portion lower chain gathering sill, stage casing lower chain gathering sill and back segment lower chain gathering sill are formed, the aspect ratio of the inside of upper chain gathering sill cell body moves the large 2 ~ 3mm of height of frame chain, link up with and move frame chain interoperation aft hook top 1mm lower than lower chain gathering sill cell body upper inside face, on leading portion, chain gathering sill and leading portion lower chain gathering sill are fixed together by bracing frame, on stage casing, chain gathering sill and stage casing lower chain gathering sill are fixed together by bracing frame, on back segment, chain gathering sill and back segment lower chain gathering sill are fixed together by bracing frame, chain gathering sill on leading portion, on stage casing, on chain gathering sill and back segment, the side plate at chain gathering sill two ends is outward-dipping "eight" shape opening, leading portion lower chain gathering sill, the side plate at stage casing lower chain gathering sill and back segment lower chain gathering sill two ends is outward-dipping "eight" shape opening, horizontal range between the "eight" shape opening of leading portion lower chain gathering sill rear end and the "eight" shape opening of lower chain gathering sill front end, stage casing is less than the half of moving frame chain pitch, horizontal range between the "eight" shape opening of lower chain gathering sill rear end, stage casing and the "eight" shape opening of back segment lower chain gathering sill front end is less than the half of moving frame chain pitch.
The present invention compares with prior art, and its effect is actively with obvious.Rail assembly, brace summer assembly, brace summer assembly mobile device and brace summer assembly draw off gear are set in this circulating self-moving forepoling hydraulic support, brace summer assembly adopts the design that column can be elevated and brace summer and tie-beam can stretch, when brace summer narrows, the distance of two column outer is less than the distance on edge in two columns during normal support, so that the support shunk passes through between the normal bracket upright post supported; In order to realize automatically moving frame and lifting brace summer assembly, devise brace summer assembly mobile device, brace summer assembly draw off gear, and in rail assembly, be provided with rail moving device, the hydraulic motor and chain and sprocket driving device that there is provided and move frame are wherein provided, realize pusher dog and the hydraulic cylinder of lifting brace summer assembly; Can automatically stop moving frame after can realizing moving frame and move frame certain distance, be provided with the solution lock dog matched with link in track both sides, by separating lock dog, hook is separated with chain, after moving frame certain distance, can automatic unlocking be realized.In sum, the supporting to back when the present invention not only can play coal mining, can also realize the effect automatically moving frame, crane, advancing velocity is fast.
Accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is Fig. 1 top view.
Fig. 3 is the left view of Fig. 1.
Fig. 4 be Fig. 1 middle orbit assembly and on the front view of rail moving device and brace summer assembly mobile device is set.
Fig. 5 is the top view of Fig. 4.
Fig. 6 is the schematic diagram that brace summer assembly is in normal operating conditions.
Fig. 7 is the schematic diagram that brace summer assembly is in retracted state.
Fig. 8 is the front view of linkage.
Fig. 9 is the lateral view of linkage.
Figure 10 be front-end track and on the front view of brace summer assembly draw off gear, rail moving device and part brace summer assembly mobile device is set.
Figure 11 is the top view of Figure 10.
Figure 12 is the A-A sectional drawing in Figure 10.
Figure 13 is the B-B sectional drawing in Figure 11.
Figure 14 is the C-C sectional view in Figure 11.
Figure 15 is the front view of the chain slide that intermediate orbit and both sides thereof are arranged.
Figure 16 is the top view of Figure 15.
Figure 17 is the left view of Figure 15.
Figure 18 is the front view of the brace summer assembly draw off gear of rear end track and upper setting thereof.
Figure 19 is the top view of Figure 18.
Figure 20 is the D-D sectional drawing in Figure 18.
Figure 21 is the E-E sectional view in Figure 19.
Figure 22 is the front view of front-end track.
Figure 23 be front-end track overlook half sectional view.
Figure 24 is the F-F sectional view in Figure 23.
Figure 25 is the G-G sectional view in Figure 24.
Figure 26 is the H-H sectional view in Figure 24.
Figure 27 is brace summer front view.
Figure 28 is the upward view of Figure 27.
Figure 29 is the I-I sectional view in Figure 27.
Figure 30 is the J-J sectional view in Figure 27.
Figure 31 is the K-K sectional view in Figure 27.
Figure 32 is the L-L sectional view in Figure 27.
Figure 33 is the upward view of tie-beam.
Figure 34 is the M-M sectional view in Figure 33.
Figure 35 is the N-N sectional view in Figure 33.
Figure 36 is the top view of pusher dog.
Figure 37 is the O-O sectional view in Figure 36.
Figure 38 is the P-P sectional view in Figure 36.
Figure 39 is the front view passing contiguous block.
Figure 40 is the top view of Figure 39.
Figure 41 is the Q-Q sectional view of Figure 40.
Figure 42 is revolution contiguous block front view.
Figure 43 is the left view of Figure 42.
Figure 44 is R-R sectional drawing in Figure 42.
Figure 45 is the front view separating lock dog.
Figure 46 is the left view separating lock dog.
Figure 47 is the schematic diagram of brace summer assembly when moving.
Detailed description of the invention
The present invention is described in further detail by embodiment below in conjunction with accompanying drawing.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14, Figure 15, Figure 16, Figure 17, Figure 18, Figure 19, Figure 20, Figure 21, Figure 22, Figure 23, Figure 24, Figure 25, Figure 26, Figure 27, Figure 28, Figure 29, Figure 30, Figure 31, Figure 32, Figure 33, Figure 34, Figure 35, Figure 36, Figure 37, Figure 38, Figure 39, Figure 40, Figure 41, Figure 42, Figure 43, Figure 44, Figure 45, shown in Figure 46 and Figure 47, wherein Fig. 1, dotted portion in Fig. 2 and Fig. 3 is be in the brace summer assembly moving rack-like state, show in Figure 21 be pusher dog regain time state.
In the present embodiment, frame direction is moved in Fig. 2 shown in arrow.It comprises rail assembly, brace summer assembly, brace summer assembly mobile device and brace summer assembly draw off gear, brace summer assembly comprises brace summer 11, tie-beam 12, telescopic jack 13 and double-telescopic upright post 14 are formed, a tie-beam 12 is respectively provided with at brace summer 11 two ends, sliding pair is along its length provided with between tie-beam and brace summer, telescopic jack 13 two ends are articulated with on tie-beam 12 and brace summer 11 respectively, the outer end of tie-beam 12 and double-telescopic upright post 14 upper end thereof, double-telescopic upright post 14 is in vertically arranging, the lower end of double-telescopic upright post 14 is provided with end boots by bulb, and be supported on base plate by end boots, double-telescopic upright post 14 is hydraulic vertical props conventional in coal machine, can realize stretching up and down, in the present embodiment, this circulating self-moving forepoling hydraulic support comprises the brace summer assembly that 23 groups of side by side parallel are arranged, the spacing of 400mm is provided with between two adjacent groups brace summer assembly, when needs are mobile, tie-beam just shrinks under telescopic jack effect, make the distance between tie-beam outer face, two ends to be less than in the normal brace summer assembly supported inside two columns between distance, the bracket component being convenient to be in rear end passes through when moving between two columns of front bracket component, described rail assembly is located between two columns of brace summer assembly, this brace summer assembly mobile device comprises driver, transmission device and linkage, driver and transmission device are located on rail assembly, linkage one end is connected with transmission device, the linkage other end is connected with brace summer assembly, rail assembly comprises track 2 and rail moving device, rail moving device is located on track 2, the length of track is greater than the distance between brace summer assembly foremost and the brace summer assembly of rearmost end, linkage and brace summer assembly link are provided with revolute pair, brace summer assembly draw off gear is located on track.
Track 2 is made up of left i-beam structure and right i-beam structure side by side parallel, the upper side and lower side of this left i-beam structure and right i-beam structure forms guide rail 21, this left i-beam structure and right i-beam structure two ends are provided with arc structure 22, the guide rail 21 of its upper side and lower side is connected to form enclosed guide rail structure by this arc structure 22, spacing is provided with between this left i-beam structure and right i-beam structure, brace summer is provided with revolution contiguous block 3, this revolution contiguous block 3 is provided with roller 31, roller 31 matches with guide rail 21, when movable support beam assembly, the brace summer assembly be moved is slided on guide rail 21 by roller 31, described transmission device comprises front end axle 401, rear end axle 402, move frame sprocket wheel 403, move frame chain 404, drive sprocket 405, first driven sprocket 406 and chain drive-belt 407 are formed, the front end of this left i-beam structure and right i-beam structure is provided with front end axle 401 by bearing, the rear end of this left i-beam structure and right i-beam structure is provided with rear end axle 402 by bearing, described driver is provided at the hydraulic motor 408 between left i-beam structure and right i-beam structure, hydraulic motor 408 is located between two i-beam structures of front-end track by motor bracket 409, the output shaft of hydraulic motor 408 is also provided with a force moment protection device 410, the output shaft of force moment protection device 410 is connected with drive sprocket 405, the two ends of front end axle 401 and rear end axle 402 are connected with by key moves frame sprocket wheel 403, the frame sprocket wheel that moves on the axle of front end rotates with front end axle, the frame sprocket wheel that moves on the axle of rear end rotates with rear end axle, moving frame sprocket wheel 403 is positioned at outside track, the moving to be provided with between frame sprocket wheel 403 of this front end axle and rear end axle moves frame chain 404, the first driven sprocket 406 is provided with by key in the middle part of front end axle 401, chain drive-belt 407 is provided with between drive sprocket 405 and the first driven sprocket 406, drive sprocket is driven to rotate by hydraulic motor, by chain drive-belt, walked around in front end more dynamic, described linkage is made up of link 51 and hook 52, hook 52 is respectively provided with at the two ends of link 51, link is provided with back-up ring 54, spacing hook 52, in case hook comes off, hook is in tabular, revolute pair is provided with between hook 52 and link 51 two ends, hook 52 is provided with tooth 53, hook is provided with three teeth, and the distance between adjacent two teeth is equal with the pitch of moving frame chain, the tooth 53 on hook with move frame chain 404 and match, be warp architecture and be positioned in the middle part of link 51 and move below frame chain 404, linkage also can be described as hook assembly, brace summer assembly draw off gear comprises advancing jack 61 and pusher dog 62, second chain 66 and the second sprocket wheel 64, pusher dog 62 is provided with circular arc recess 63, this circular arc recess matches with the face of cylinder in the middle part of brace summer, a described brace summer assembly draw off gear is equipped with in track front-end and back-end, in the brace summer assembly draw off gear of track front end, pusher dog 62 is sheathed in the middle part of front end axle 401 rotationally, in the brace summer assembly draw off gear of track rear end, pusher dog 62 is sheathed in the middle part of rear end axle 402 rotationally, pusher dog and front end axle and shaft connection place, rear end are also provided with the second sprocket wheel 64, this second sprocket wheel 64 is fixedly connected with pusher dog 62, second sprocket wheel is respectively provided with in the both sides of pusher dog, the second sprocket wheel 64 being positioned at front end axle 401 place is sheathed on the axle of front end, the second sprocket wheel 64 being positioned at rear end axle 402 place is sheathed on the axle of rear end, in the front-end and back-end of track, the 3rd sprocket wheel 65 is also provided with respectively by rotating shaft in the middle part of track, the second chain 66 is provided with between this second sprocket wheel 64 and the 3rd sprocket wheel 65, this second chain 66 is fixed with and passes contiguous block 67, passing contiguous block 67 in the present embodiment is fixed on the second chain 66 hypomere, advancing jack 61 is all hinged with between the passing contiguous block 67 and track of track front-end and back-end, be positioned at the advancing jack of track front end, pusher dog, second sprocket wheel, 3rd sprocket wheel and the second chain form rail moving device.
Track is by front-end track 23, intermediate orbit 24 and rear end track 25 are formed, described front-end track, intermediate orbit and rear end track are formed by left i-beam structure and right i-beam structure side by side parallel, front-end track 23 rear end is connected by circular arc otic placode with intermediate orbit 24 front end, intermediate orbit 24 rear end is connected by circular arc otic placode with rear end track 25 front end, this circular arc otic placode has semi-circular plate termination, a brace summer assembly draw off gear is provided with in the front end of front-end track, a brace summer assembly draw off gear is provided with in the rear end of rear end track, rail moving device is located on front-end track.Front-end track, to be connected by circular arc otic placode between intermediate orbit and rear end track, to be the out-of-flatness for the ease of adapting to base plate, and to be convenient to there is certain rotation each other.
Described link 51 is made up of cylindrical rod piece, " convex " shape structure of link 51 entirety in upper opening, two described revolution contiguous blocks 3 are provided with by two Connection Blocks 1101 in the middle part of brace summer 11, revolute pair is provided with between Connection Block 1101 and brace summer 11, Connection Block 1101 is connected with U-shaped junction button 1102 by bearing pin, U-shaped junction button 1102 is connected with revolution contiguous block 3 by bolt, revolution contiguous block 3 is provided with a pair roller 31 by roller shaft, this pair roller 31 be provided with interval, this pair roller 31 matches with the guide rail 21 of i-beam structure, a pair roller on these two revolution contiguous blocks coordinates with the guide rail on left i-beam structure and right i-beam structure respectively, namely this pair roller matches with the guide rail of i-beam structure, and interval is greater than the thickness of i-beam structure center vertical plate between this pair roller, after assembling, the vertical plate of i-beam structure is between this pair roller, describedly be less than distance in the middle part of brace summer between two revolution contiguous blocks in falling the width of closing end of " convex " shape hatch frame link 51, the width that namely link 51 part bending down is divided is less than the distance between these two revolution contiguous blocks 3, like this when move frame chain by hook tape be dynamically connected frame move time, link turns round contiguous block to contact and to turning round contiguous block applied thrust with two, just the brace summer assembly in contraction state can be moved.
Be fixed with in both sides, front-end track front end and separate lock dog 411, this solution lock dog is flute profile, separate lock dog compressing by steel plate, the groove separating lock dog is arranged along track length direction, the groove that frame latticing 404 is positioned at this solution lock dog 411 is moved outside front-end track two, separating lock dog outer panel is wedge shape, the height separating lock dog outer panel rear end is less than the height of its front end, separate lock dog outer panel rear end a little less than moving frame chain, separate lock dog outer panel front end and be provided with arc notch 41101, the circular arc portion of this arc notch matches with the rod member of link 51, this breach center and the vertical distance of separating between lock dog rear end are greater than the height linking up with tooth, separate lock dog interior plate and be welded with L-shaped bent plate 41102, this bent plate is connected with front-end track by bolt.
Brace summer comprises sleeve 1103, sleeve is made up of steel pipe, the housing 1104 taken the shape of the letter U is welded with outside sleeve stage casing, this U-shaped housing 1104 bottom outside face is semi-cylindrical, U-shaped case top is welded with steel plate and forms U-shaped casing, this U-shaped tank ends is welded with the first positive stop strip 1105, this first positive stop strip 1105 forms square box, outside first positive stop strip 1105, sleeve is also welded with the second positive stop strip 1106, second positive stop strip 1106 forms square box, distance between this first positive stop strip 1105 and second positive stop strip 1106 is greater than the length of Connection Block 1101, sleeve between first positive stop strip and the second positive stop strip matches with Connection Block formation revolute pair, the two ends of sleeve 1103, be positioned at the steel plate be welded with outside the second positive stop strip 1106 along its axis, this steel plate forms square box 1107, the cross section of this square box 1107 is less than the cross section of the square box that the second positive stop strip is formed, the square box 1107 at sleeve two ends matches with tie-beam 12, the hinged ear 121 of telescopic jack is provided with on the downside of tie-beam 12, the hinged ear 1108 of another telescopic jack is provided with on the downside of the casing that second positive stop strip 1106 is formed, telescopic jack 13 two ends are hinged with the hinged ear of extensible canopy jack 121 and the hinged ear 1108 of another telescopic jack respectively, on pusher dog circular arc recess 63 openend inside in inclined-plane 631, this circular arc recess the inner is arc surface 632, this arc surface 632 is 120 ° to corresponding central angle, inclined-plane 631 and the tangent transition of arc surface 632, this arc surface matches with the semi-cylindrical of U-shaped housing.
Guide strip 15 is provided with in the middle part of brace summer 11 and between tie-beam 12, the hinged ear 16 of guide strip is coaxially provided with outside the hinged ear of another telescopic jack 1108, with it, guide strip 15 one end and the hinged ear of guide strip hinged 16, the inner side correspondence of tie-beam 12 biside plate is provided with cantilever-shaped guide finger 122, be provided with slotted eye along its length in the middle part of guide strip 15, guide finger is positioned at slotted eye.This guide strip carries out spacing to the telescopic level of telescopic jack.
Pass contiguous block 67 and comprise base plate 671 and pressing plate 672, pressing plate 672 is located on base plate 671 by bolt, baseplate underside is provided with otic placode 673 and is hinged with advancing jack 61, base plate two ends upper side is provided with four arc pits 674, wherein two the arc pits 674 in middle part are complete, on limit, two is the half of middle part arc pit, the cambered surface axis of arc pit is along floor length direction, distance between adjacent two arc pit 674 centers is equal with the pitch of the second chain 66, correspondingly also be provided with arc pit 675 at pressing plate 672 downside correspondence position, second chain 66 is respectively provided with in pusher dog 62 both sides, second chain 66 of pusher dog both sides lays respectively in the space that pressing plate 672 and the arc pit of base plate 671 form, be fixedly connected with between second chain 66 with passing contiguous block.
At front-end track, intermediate orbit and track both sides, rear end are respectively fixed with moves frame chain guide structure, move frame chain guide structure and comprise chain gathering sill 71 and lower chain gathering sill 72, upper chain gathering sill and lower chain gathering sill form by steel plate compacting, upper chain gathering sill and lower chain gathering sill are fixed together by bracing frame, bracing frame is by bolt and front-end track, intermediate orbit is connected with rear end track, epimere moves frame chain and is positioned at chain gathering sill, hypomere moves frame chain and is positioned at lower chain gathering sill, in the downside of this bathtub construction, be positioned at its opening part and be also provided with separation prevention bar along its length, the height of separation prevention bar is 6mm, the height of separation prevention bar is less than the height of chain.
With front-end track, intermediate orbit is corresponding with rear end track, upper chain gathering sill 71 is also by chain gathering sill on leading portion, on stage casing, on chain gathering sill and back segment, chain gathering sill is formed, lower chain gathering sill 72 is by leading portion lower chain gathering sill, stage casing lower chain gathering sill and back segment lower chain gathering sill are formed, the aspect ratio of the inside of upper chain gathering sill cell body moves the large 2 ~ 3mm of height of frame chain, link up with and move frame chain interoperation aft hook top 1mm lower than lower chain gathering sill cell body upper inside face, on leading portion, chain gathering sill and leading portion lower chain gathering sill are fixed together by bracing frame, on stage casing, chain gathering sill and stage casing lower chain gathering sill are fixed together by bracing frame, on back segment, chain gathering sill and back segment lower chain gathering sill are fixed together by bracing frame, chain gathering sill on leading portion, on stage casing, on chain gathering sill and back segment, the side plate at chain gathering sill two ends is outward-dipping "eight" shape opening, leading portion lower chain gathering sill, the side plate at stage casing lower chain gathering sill and back segment lower chain gathering sill two ends is outward-dipping "eight" shape opening, horizontal range between the "eight" shape opening of leading portion lower chain gathering sill rear end and the "eight" shape opening of lower chain gathering sill front end, stage casing is less than the half of moving frame chain pitch, horizontal range between the "eight" shape opening of lower chain gathering sill rear end, stage casing and the "eight" shape opening of back segment lower chain gathering sill front end is less than the half of moving frame chain pitch.
Tie-beam 12 one end is welded with needling 123, this needling and column 14 upper end thereof, be positioned at needling both sides and be welded with outer panel 124 and interior plate 125 respectively, the upper end of column 14 and needling 123, and the cylinder bottom of solid is all that sphere is connected with end boots, the swing of 3-5 degree can be realized by this sphere connection control column.
Three plates 621 are provided with side by side in pusher dog 62, spacing is provided with between these three plates 621, these three plate one end are fixed on a sleeve 622, sleeve 622 is sheathed on front end axle 401, hole interference fit on sleeve and pusher dog, revolute pair is provided with between the sleeve 622 and front end axle 401 of track front end, revolute pair is provided with between the sleeve 622 and rear end axle 402 of track rear end, second sprocket wheel 64 is secured by bolts on the plate of both sides, curved plate is welded with in the interval of three plate other ends, described circular arc recess 63 is provided with at these three plate other ends.
Left i-beam structure and right i iron are welded by upper i iron, rectangular steel pipe and lower i iron and form, and the downside of upper i iron is welded with on the upside of rectangular tube, and the upside of lower i iron is welded with on the downside of rectangular tube.
Connection Block 1101 is made up of two semicircle column casings, and the internal diameter of these two semicircle column casings is greater than the external diameter of sleeve 1103, and these two semicircle column casings are connected by bolt.
The course of work of the present invention is as follows: suppose that bracket component shifts to track front end from track rear end, i.e. direction shown in arrow in Fig. 2.As shown in figure 47, one group of brace summer assembly to be moved is only depicted in this figure.When needs moving rack assembly, the advancing jack piston rod be located on the track of rear end stretches out, the second chain on the track of rear end is driven to rotate by passing contiguous block, second chain-driving pusher dog rotates, pusher dog is rotated counterclockwise, until the circular arc recess on pusher dog turns to upwards state and matches with the face of cylinder of downside in the middle part of the brace summer of last brace summer assembly, now two columns of last group brace summer assembly shrink and fall frame, and last group brace summer assembly is held by the pusher dog on the track of rear end, now, the telescopic jack at last group brace summer assembly two ends is shunk and tie-beam is moved to middle part, its width is diminished, the distance between the distance between making when telescopic jack is retracted to end point of travel outside tie-beam two to be less than before it inside normal brace summer assembly two column supported, then, the advancing jack being positioned at rear end track shrinks, by passing contiguous block and the second chain, pusher dog is rotated clockwise, pusher dog holder last group brace summer assembly along track rear end slide downward gradually, because track rear end is provided with circular arc transition, therefore last group brace summer assembly successfully can slide into lower horizontal segment from the upper horizontal segment of closed orbit by the roller on it, last group brace summer assembly just hangs in the lower water section of track by roller and revolution contiguous block, the advancing jack being positioned at rear end track shrinks further, then pusher dog separates with brace summer assembly, and be recovered to a left side, in right two i-beam structures, hydraulic motor rotates, by move frame chain-driving hook and link move, because link is in falling " convex " shape hatch frame, its two ends by hook with move frame chain and match, and move frame chain and be positioned at outside track, the linkage that link and hook are formed is positioned at last pack support rear, and the width of bending segment is less than the distance in the middle part of brace summer between two revolution contiguous blocks in the middle part of link, moving under frame chain-driving, when link and last organize brace summer component touch after just promote to hang on guide rail last organize brace summer assembly and move, link contacts below with track when mobile, and along slide, link promotes to turn round contiguous block below, and then brace summer assembly is moved, link moves to track front end and is lifted by link by the inclined-plane separated on lock dog, make the tooth on hook and move frame chain and be separated, link blocks and spacing by the circular arc recess separated on lock dog, link by workman take off be arranged on last group moving on frame chain of brace summer assembly rear end wait for that next time moves frame, the piston rod being positioned at the advancing jack of track front end stretches out, the pusher dog of track front end is rotated clockwise, its circular arc recess upwards state, and contact with the cylindrical outer side face, brace summer middle and lower part of the brace summer assembly being moved to track front end and coordinate, along with the advancing jack piston rod of track front end stretches out further, pusher dog continues to rotate clockwise, be moved the circular arc transition along track front end under the constraint of pusher dog active force and roller and track of brace summer assembly, move up until by the upper horizontal segment guide rail of brace summer assembly moving track front end that is moved gradually, now advancing jack stops stretching out, and the telescopic jack being moved to the brace summer assembly of one group, foremost is stretched out and made two columns reach normal operation position, and two columns stretch out, and make brace summer assembly connects top board, connect base plate, reach holding state under column, the advancing jack being now positioned at track front end continues the gap length stretching out two pack supports, pusher dog in track front end and brace summer mutually do under give advancing jack pulling force, make whole track move forward a step pitch, this step pitch size equals the spacing between adjacent two supports.
In addition to the above, in this support, the quantity of brace summer assembly and the spacing of two adjacent groups brace summer assembly can adjust according to the length in actual tunnel.In track rear end, rear end, also solution lock dog can be set, like this can the direction of adjusting pole movement as required.
Claims (10)
1. a circulating self-moving forepoling hydraulic support, it comprises rail assembly, brace summer assembly and brace summer assembly mobile device, brace summer assembly comprises brace summer, tie-beam, telescopic jack and double-telescopic upright post are formed, a tie-beam is respectively provided with at brace summer two ends, sliding pair is along its length provided with between tie-beam and brace summer, telescopic jack two ends are articulated with on tie-beam and brace summer respectively, the outer end of tie-beam and double-telescopic upright post upper end thereof, double-telescopic upright post is in vertically arranging, this circulating self-moving forepoling hydraulic support comprises the brace summer assembly that at least three group side by side parallel are arranged, spacing is provided with between two adjacent groups brace summer assembly, described rail assembly is located between two columns of brace summer assembly, this brace summer assembly mobile device comprises driver, transmission device and linkage, driver and transmission device are located on rail assembly, linkage one end is connected with transmission device, the linkage other end is connected with brace summer assembly, rail assembly comprises track and rail moving device, rail moving device is located on track, the length of track is greater than the distance between brace summer assembly foremost and the brace summer assembly of rearmost end, linkage and brace summer assembly link are provided with revolute pair, it is characterized in that: also comprise brace summer assembly draw off gear, brace summer assembly draw off gear is located on track, distance between the quantity of described brace summer assembly and two adjacent groups brace summer assembly can adjust according to the length in actual tunnel.
2. circulating self-moving forepoling hydraulic support as claimed in claim 1, it is characterized in that: track is made up of left i-beam structure and right i-beam structure side by side parallel, the upper side and lower side of this left i-beam structure and right i-beam structure forms guide rail, this left i-beam structure and right i-beam structure two ends are provided with arc structure, the guide rail of its upper side and lower side is connected by this arc structure, spacing is provided with between this left i-beam structure and right i-beam structure, brace summer is provided with revolution contiguous block, this revolution contiguous block is provided with roller, roller matches with guide rail, described transmission device comprises front end axle, rear end axle, move frame sprocket wheel, move frame chain, drive sprocket, first driven sprocket and chain drive-belt are formed, the front end of this left i-beam structure and right i-beam structure is provided with front end axle by bearing, the rear end of this left i-beam structure and right i-beam structure is provided with rear end axle by bearing, described driver is provided at the hydraulic motor between left i-beam structure and right i-beam structure, hydraulic motor output shaft is connected with drive sprocket, the two ends of front end axle and rear end axle are connected with by key moves frame sprocket wheel, moving frame sprocket wheel is positioned at outside track, the moving to be provided with between frame sprocket wheel of this front end axle and rear end axle moves frame chain, the first driven sprocket is provided with by key in the middle part of the axle of front end, chain drive-belt is provided with between drive sprocket and the first driven sprocket, described linkage is made up of link and hook, respectively hook is provided with at the two ends of link, hook is in tabular, revolute pair is provided with between hook and link two ends, hook is provided with tooth, tooth on hook with move frame chain and match, in warp architecture in the middle part of link, and be positioned at and move below frame chain, brace summer assembly draw off gear comprises advancing jack and pusher dog, second chain and the second sprocket wheel, pusher dog is provided with circular arc recess, this circular arc recess matches with the face of cylinder in the middle part of brace summer, a described brace summer assembly draw off gear is equipped with in track front-end and back-end, in the brace summer assembly draw off gear of track front end, pusher dog is sheathed in the middle part of the axle of front end rotationally, in the brace summer assembly draw off gear of track rear end, pusher dog is sheathed in the middle part of the axle of rear end rotationally, pusher dog and front end axle and shaft connection place, rear end are also provided with the second sprocket wheel, this second sprocket wheel is fixedly connected with pusher dog, the second sprocket wheel being positioned at axle place, front end is sheathed on the axle of front end, the second sprocket wheel being positioned at axle place, rear end is sheathed on the axle of rear end, in the front-end and back-end of track, the 3rd sprocket wheel is also provided with respectively by rotating shaft in the middle part of track, the second chain is provided with between this second sprocket wheel and the 3rd sprocket wheel, this second chain is fixed with passing contiguous block, all advancing jack is hinged with between the passing contiguous block and track of track front-end and back-end, the brace summer folding and unfolding assembly and the 3rd sprocket wheel that are positioned at track front end form rail moving device.
3. circulating self-moving forepoling hydraulic support as claimed in claim 2, it is characterized in that: track is by front-end track, intermediate orbit and rear end track are formed, described front-end track, intermediate orbit and rear end track are formed by left i-beam structure and right i-beam structure side by side parallel, front-end track rear end is connected by circular arc otic placode with intermediate orbit front end, intermediate orbit rear end is connected by circular arc otic placode with track front end, rear end, this circular arc otic placode has semi-circular plate termination, a brace summer assembly draw off gear is provided with in the front end of front-end track, a brace summer assembly draw off gear is provided with in the rear end of rear end track, rail moving device is located on front-end track.
4. circulating self-moving forepoling hydraulic support as claimed in claim 3, it is characterized in that: described link is made up of cylindrical rod piece, " convex " shape structure of link entirety in upper opening, two described revolution contiguous blocks are provided with by two Connection Blocks in the middle part of brace summer, revolute pair is provided with between Connection Block and brace summer, Connection Block is connected with U-shaped junction button by bearing pin, U-shaped junction button is connected with revolution contiguous block by bolt, revolution contiguous block is provided with a pair roller by roller shaft, this pair roller be provided with interval, this pair roller matches with the guide rail of i-beam structure, a pair roller on these two revolution contiguous blocks coordinates with the guide rail on left i-beam structure and right i-beam structure respectively, describedly be less than distance in the middle part of brace summer between two revolution contiguous blocks in falling the width of closing end of " convex " shape hatch frame link.
5. circulating self-moving forepoling hydraulic support as claimed in claim 4, it is characterized in that: be fixed with solution lock dog in both sides, front-end track front end, this solution lock dog is flute profile, separate lock dog compressing by steel plate, the groove separating lock dog is arranged along track length direction, the groove that frame latticing is positioned at this solution lock dog is moved outside front-end track two, separating lock dog outer panel is wedge shape, the height separating lock dog outer panel rear end is less than the height of its front end, separate lock dog outer panel rear end a little less than moving frame chain, separate lock dog outer panel front end and be provided with arc notch, the circular arc portion of this arc notch matches with the rod member of link, this breach center and the vertical distance of separating between lock dog rear end are greater than the height linking up with tooth, separate lock dog interior plate and be welded with L-shaped bent plate, this bent plate is connected with front-end track by bolt.
6. circulating self-moving forepoling hydraulic support as claimed in claim 5, it is characterized in that: brace summer comprises sleeve, sleeve is made up of steel pipe, the housing taken the shape of the letter U is welded with outside sleeve stage casing, this U-shaped housing bottom lateral surface is semi-cylindrical, U-shaped case top is welded with steel plate and forms U-shaped casing, this U-shaped tank ends is welded with the first positive stop strip, this first positive stop strip forms square box, outside first positive stop strip, sleeve is also welded with the second positive stop strip, second positive stop strip forms square box, distance between this first positive stop strip and second positive stop strip is greater than the length of Connection Block, sleeve between first positive stop strip and the second positive stop strip matches with Connection Block formation revolute pair, the two ends of sleeve, be positioned at the steel plate be welded with outside the second positive stop strip along its axis, this steel plate forms square box, the cross section of this square box is less than the cross section of the second positive stop strip, the square box at sleeve two ends matches with tie-beam, the hinged ear of telescopic jack is provided with on the downside of tie-beam, the hinged ear of another telescopic jack is provided with on the downside of the casing that second positive stop strip is formed, telescopic jack two ends are hinged with the hinged ear of extensible canopy jack and the hinged ear of another telescopic jack respectively, on pusher dog circular arc recess openend inside in inclined-plane, this circular arc recess the inner is arc surface, this arc surface is 120 ° to corresponding central angle, this arc surface matches with the semi-cylindrical of U-shaped housing.
7. circulating self-moving forepoling hydraulic support as claimed in claim 6, it is characterized in that: in the middle part of brace summer and between tie-beam, be provided with guide strip, the hinged ear of guide strip is coaxially provided with outside the hinged ear of another telescopic jack, with it, guide strip one end and the hinged ear of guide strip hinged, the inner side correspondence of tie-beam biside plate is provided with cantilever-shaped guide finger, be provided with slotted eye along its length in the middle part of guide strip, guide finger is positioned at slotted eye.
8. circulating self-moving forepoling hydraulic support as claimed in claim 7, it is characterized in that: pass contiguous block and comprise base plate and pressing plate, pressing plate is located on base plate by bolt, baseplate underside is provided with otic placode and advancing jack is hinged, base plate two ends upper side is provided with at least two arc pits, the cambered surface axis of these two pits is along floor length direction, distance between these two pit centres is equal with the pitch of the second chain, correspondingly also be provided with arc pit at pressing plate downside correspondence position, second chain is respectively provided with in pusher dog both sides, in the space that the arc pit that second chain of pusher dog both sides lays respectively at pressing plate and base plate is formed, be fixedly connected with between second chain with passing contiguous block.
9. circulating self-moving forepoling hydraulic support as claimed in claim 8, it is characterized in that: at front-end track, intermediate orbit and track both sides, rear end are respectively fixed with moves frame chain guide structure, move frame chain guide structure and comprise chain gathering sill and lower chain gathering sill, upper chain gathering sill and lower chain gathering sill form by steel plate compacting, upper chain gathering sill and lower chain gathering sill are fixed together by bracing frame, bracing frame is by bolt and front-end track, intermediate orbit is connected with rear end track, epimere moves frame chain and is positioned at chain gathering sill, hypomere moves frame chain and is positioned at lower chain gathering sill, in the downside of this bathtub construction, be positioned at its opening part and be also provided with separation prevention bar along its length, the height of separation prevention bar is less than the height of chain.
10. circulating self-moving forepoling hydraulic support as claimed in claim 9, it is characterized in that: with front-end track, intermediate orbit is corresponding with rear end track, upper chain gathering sill is also by chain gathering sill on leading portion, on stage casing, on chain gathering sill and back segment, chain gathering sill is formed, lower chain gathering sill is by leading portion lower chain gathering sill, stage casing lower chain gathering sill and back segment lower chain gathering sill are formed, the aspect ratio of the inside of upper chain gathering sill cell body moves the large 2 ~ 3mm of height of frame chain, link up with and move frame chain interoperation aft hook top 1mm lower than lower chain gathering sill cell body upper inside face, on leading portion, chain gathering sill and leading portion lower chain gathering sill are fixed together by bracing frame, on stage casing, chain gathering sill and stage casing lower chain gathering sill are fixed together by bracing frame, on back segment, chain gathering sill and back segment lower chain gathering sill are fixed together by bracing frame, chain gathering sill on leading portion, on stage casing, on chain gathering sill and back segment, the side plate at chain gathering sill two ends is outward-dipping "eight" shape opening, leading portion lower chain gathering sill, the side plate at stage casing lower chain gathering sill and back segment lower chain gathering sill two ends is outward-dipping "eight" shape opening, horizontal range between the "eight" shape opening of leading portion lower chain gathering sill rear end and the "eight" shape opening of lower chain gathering sill front end, stage casing is less than the half of moving frame chain pitch, horizontal range between the "eight" shape opening of lower chain gathering sill rear end, stage casing and the "eight" shape opening of back segment lower chain gathering sill front end is less than the half of moving frame chain pitch.
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