CN202578741U - End hydraulic bracket with rotatable top beam - Google Patents
End hydraulic bracket with rotatable top beam Download PDFInfo
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- CN202578741U CN202578741U CN 201220048103 CN201220048103U CN202578741U CN 202578741 U CN202578741 U CN 202578741U CN 201220048103 CN201220048103 CN 201220048103 CN 201220048103 U CN201220048103 U CN 201220048103U CN 202578741 U CN202578741 U CN 202578741U
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Abstract
The utility model discloses an end hydraulic bracket with a rotatable top beam. The end hydraulic bracket comprises a pair of middle frame, a pair of rear frame and at least one pair of front frame, wherein two push jacks are arranged at the front end of a second base of the middle frame; one end of each of the two push jacks is connected to the middle frame, and the other end of each of the two push jacks is tightly pressed against the rear end of a first base of the front frame; two push jacks are arranged at the front end of a third base of the rear frame; one end of each of the two push jacks is connected to the rear frame, and the other end of each of the two push jacks is tightly pressed against the rear end of the second base of the middle frame; two bottom lifting jacks are arranged on each of the front part of the first base of the front frame, the front part of the second base of the middle frame and the front part of the third base of the rear frame; reversed loaders are arranged on the first base, the second base and the third base; a front part conveyer handpiece is arranged on the second base of the middle frame; and a rear part conveyer handpiece is arranged on the third base of the rear frame. The end hydraulic bracket is suitable for changes of heights, inclination directions and angles of an alley, and the bracket is kept stable; when the bottom of the bracket is stabbed, the bracket can be successfully moved.
Description
Technical field
The utility model relates to a kind of coal mine support facility, is specifically related to the end hydraulic support that a kind of back timber can rotate, and is specially adapted to the tunnel of oblique top frequent changes incline direction.
Background technology
Along with the development of coal mine machinery coal mining, particularly comprehensive mining, to support in gateway of coal mining face (comprising machine lane and air way) fast and the safety support problem show especially out.The supporting ratio in flat-top tunnel is easier to solve, but that the supporting in Xie Ding tunnel will be stranded is much more difficult, and the support that generally is used for the flat-top tunnel can not solve an oblique top stability of the roadway property supporting difficult problem.Its main cause be set cap support that oblique top produces upwards, to the component of side can cause back timber upwards, to side slip, make the ability of support loss of stability and the oblique top board of supporting; In addition, can not solve the supporting and the reach problem in Xie Ding tunnel, greatly influence and restricted the development of the quick and High-efficient Production of comprehensive mining.Therefore, be badly in need of the hydraulic support of development oblique top roadway support,, satisfy the supporting and the demand that moves forward safely in the Xie Ding tunnel of frequent changes incline direction to adapt to coal mine fully-mechanized mining to oblique top.
Summary of the invention
To above-mentioned situation; The purpose of the utility model provides the end hydraulic support that a kind of back timber can rotate; It can tunnel (machine lane and air way) just, under the more frequent situation of incline direction and angle change, pumping plant is transported to face end support with emulsion, realizes reach smoothly through the face end support hydraulic control system; And can reach reliable, the stable safety requirements of supporting simultaneously, guarantee the quick propelling of comprehensive mining.
The end hydraulic support that the described a kind of back timber of the utility model can rotate; Comprise frame in the pair, a secondary after-frame and at least one secondary side arm; It is characterized in that: second front end of base at middle frame is provided with two passing jack, during an end of two passing jack is connected on the frame, the rear end of first base of the other end and side arm near; The 3rd front end of base at after-frame also is provided with two passing jack, an end of two passing jack is connected on the after-frame, the rear end of second base of the other end and middle frame near; Second base front portion of, middle frame anterior at first base of side arm and the 3rd base front portion of after-frame are respectively equipped with two and lift end jack; On first base, second base and the 3rd base, be provided with elevating conveyor, on second base of middle frame, be provided with anterior conveyer head, on the 3rd base of after-frame, be provided with rear portion conveyer head.
When the end, pricked in side arm, middle frame and after-frame migration, lift end jack first base, second base and the 3rd base are lifted respectively, under the effect of passing jack, realize reach smoothly.
Said side arm comprises first base, first back timber, is located at four telescopic columns between first base and first back timber; One end of first back timber is hinged through the upper end of a T-shaped connector and caving shield, and the bottom of caving shield is hinged with the upper end of two front rods and two back links respectively, and the lower end of two front rods and two back links is hinged with an end of first base respectively; The other end of first back timber is hinged through the upper end of connecting rod on another T-shaped connector and first, and the upper end of the lower end of connecting rod and two lower links is hinged on first, and the other end of the lower end of two lower links and first base is hinged; Like this, first back timber of side arm is realized the left-right rotation of first back timber around the center line of two T-shaped connectors through the up-down of four telescopic columns.
Frame comprises second base, second back timber, is located at four telescopic columns between second base and second back timber in said; One end of second back timber is hinged through the upper end of a T-shaped connector and caving shield, and the bottom of caving shield is hinged with the upper end of two front rods and two back links respectively, and the lower end of two front rods and two back links is hinged with an end of second base respectively; The other end of second back timber is hinged through the upper end of connecting rod on another T-shaped connector and second, and the upper end of the lower end of connecting rod and a lower link is hinged on second, and the other end of the lower end of lower link and second base is hinged; Like this, second back timber of middle frame is realized the left-right rotation of second back timber around the center line of two T-shaped connectors through the up-down of four telescopic columns.
Said after-frame comprises the 3rd base, second back timber, is located at four telescopic columns between the 3rd base and second back timber; One end of second back timber is hinged through the upper end of connecting rod on the T-shaped connector and second, and the upper end of the lower end of connecting rod and a lower link is hinged on second, and an end of the lower end of lower link and the 3rd base is hinged; The other end of second back timber is hinged through the upper end of another T-shaped connector and caving shield; The bottom of caving shield is hinged with the upper end of two front rods and two back links respectively, and the lower end of two front rods and two back links is hinged with the other end of the 3rd base respectively; Like this, second back timber of after-frame is realized the left-right rotation of second back timber around the center line of two T-shaped connectors through the up-down of four telescopic columns.
Be provided with in the both sides of first back timber and protect top board, an end of six thruster jack respectively with protect that top board is connected, the other end links to each other with first back timber, the withdrawal that realizes protecting top board under the effect of thruster jack and on turn over;
Be provided with plate on the top board protecting, an end of plate jack be connected protect on the top board, the other end is connected on the plate, plate can stretch out to increase under the effect of plate jack and protect top area;
In the beam body of first back timber, be provided with two extensible canopy jack and extensible canopy, when moving frame, release extensible canopy, can enlarge and protect top area through operation extensible canopy jack;
Both sides below first back timber are respectively equipped with two adjusting jack, and an end of four adjusting jack is connected with first back timber, the other end is connected with an end of a support jack respectively; The other end of four support jack is under the effect of regulating jack, and stretch out rib side to high side, and be supported on the high side rib; First back timber of side arm supports when the tunnel is oblique pushes up; Support the jack support counter-force that rib produced by regulating the jack effect; The balance telescopic column supports the component of the side direction that oblique top board produces through back timber, makes the side arm active balance and supports tunnel Xie Ding, prevents riding;
Be connected with first respectively on the both sides of first base and widen base, can alleviate the side arm floor pressure ratio Air holder, increase support stability, base is widened in dismounting when going into the well, and can guarantee that support goes into the well.
Be provided with second in the both sides of second back timber of middle frame and protect top board, an end of six thruster jack protects with second that top board is connected, the other end links to each other with second back timber respectively, the withdrawal that realizes protecting top board under the effect of thruster jack and on turn over;
Protect to be provided with plate on the top board at second of middle frame, an end of plate jack be connected second protect on the top board, the other end is connected on the plate, plate can stretch out to increase under the effect of plate jack and protect top area;
Both sides below second back timber of middle frame are respectively equipped with two adjusting jack, and an end of four adjusting jack is connected with first back timber, the other end is connected with an end of a support jack respectively; The other end of four support jack is under the effect of regulating jack, and stretch out rib side to high side, and be supported on the high side rib;
Second back timber of middle frame supports when the tunnel is oblique pushes up; Support the jack support counter-force that rib produced by regulating the jack effect; The balance telescopic column supports the component of the side direction that oblique top board produces through back timber, in making the frame active balance with support tunnel Xie Ding, prevent riding;
Be connected with second respectively on the both sides of second base of middle frame and widen base, frame floor pressure ratio Air holder in alleviating, increase support stability, base is widened in dismounting when going into the well, and can guarantee that support goes into the well.
Be provided with in the both sides of second back timber of after-frame and protect top board, an end of six thruster jack respectively with protect that top board is connected, the other end links to each other with second back timber, the withdrawal that realizes protecting top board under the effect of thruster jack and on turn over;
Protect to be provided with plate on the top board at second of after-frame, an end of plate jack be connected second protect on the top board, the other end is connected on the plate, plate can stretch out to increase under the effect of plate jack and protect top area;
Both sides below second back timber of after-frame are respectively equipped with two adjusting jack, and an end of four adjusting jack is connected with first back timber, the other end is connected with an end of a support jack respectively; The other end of four support jack is under the effect of regulating jack, and stretch out rib side to high side, and be supported on the high side rib;
When second back timber of after-frame supports oblique top, tunnel; Support the jack support counter-force that rib produced by regulating the jack effect; The balance telescopic column supports the component of the side direction that oblique top board produces through back timber, makes the after-frame active balance and supports tunnel Xie Ding, prevents riding;
Be connected with second respectively on the both sides of the 3rd base of after-frame and widen base, can alleviate the side arm floor pressure ratio Air holder, increase support stability, base is widened in dismounting when going into the well, and can guarantee that support goes into the well smoothly.
Its technological key is: hinged through a bearing pin between back timber and the caving shield, hinged through a bearing pin between back timber and the last connecting rod simultaneously, back timber can turn round around two bearing pin center lines.
Every four telescopic columns support between base and back timber, change (0 °～40 °) to adapt to support height with top board inclination angle, road, inclined gallery, top; Caving shield and upper and lower connecting rod can keep turning round bearing pin on the carriage center line, non-migration, and can bear certain cross component force.
Back timber is provided with the support jack, and back timber is supported in rib when tilting, and bears certain cross component force, keeps support stability.
Back timber is provided with the top board that protects by jack control, can enlarge and protect top area.
Establish the passing jack between forward and backward, before and after making frame not by external force and front and back from moving;
Base setting can be dismantled widens base, can improve support stability, reduces floor pressure ratio Air holder.The setting of base front end is lifted end jack and is convenient to move frame.
Need to screen the length of supporting, can increase the front and back frame number of composition;
The utility model novel form, structure uniqueness adopt the bearing pin connected mode, are convenient to dismounting; Adopt essentially identical many combining forms of structure, satisfy end support reach and tunnel length supporting requirement; After-frame all can adapt to the supporting requirement of frequent changes Xie Ding tunnel incline direction in preceding; Can not only effectively adapt to machine lane, oblique top, also can adapt to tiltedly the requirement of the end support reach in lane against the wind.
To protect top area in order enlarging, also to be provided with in the both sides of said back timber and to protect top board, connect through the built-in jack of beam body, control is flexible.
The utility model is mainly used in the end support reach in comprehensive extracting and caving face (also can be used for the general work face) Xie Ding tunnel (comprising machine lane and air way), is particularly useful for the tunnel of oblique top rake direction of frequent changes and angle.Its advantage is following:
(1) every support is a rotary centerline with the center line of two T-shaped connectors, and is hinged through telescopic column and back timber, gone up and down by telescopic column control, adapts to tunnel height, inclination direction and angle and changes.
(2) back timber passes through T-shaped connector and caving shield, reaches and go up rod hinge connection, guarantees support stability.
(3) telescopic column supports between base and back timber, and back timber adapts to the back inclination angle and changes (0 °-40 °) and the variation of top board incline direction.
(4) respectively establish backplate through the back timber both sides, can protect top area in the kaneh by jack control.
(5) side arm can be confirmed length as required, and middle after-frame adapts to the requirement of supporting length according to supporting decision stent length, and can change direction and use.
(6) base is provided with activity and widens base, and floor pressure ratio Air holder is little, support stability good.
(7) end jack is lifted in the setting of every support front end, can when support is pricked the end, realize that support moves frame smoothly.
(8) back timber can rotary type face end support solve the difficult problem of roadway support, can be according to supporting placement elevating conveyor, front and rear portions conveyer head, and to its shielding, coal mine machineryization is combined mining height produces and efficiently will play guaranteeing role with the safety in production development.
(9) back timber ability rotary type face end support both had been applicable to the supporting in caving fully mechanized face tunnel, was applicable to the supporting in all-time high mining face tunnel again.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the vertical view (having removed back timber, caving shield, connecting rod etc.) of Fig. 1;
Fig. 3 is the structural representation of side arm;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the left view of Fig. 3;
Fig. 6 is the sketch map that the back timber of Fig. 5 clockwise rotates;
Fig. 7 is the sketch map that the back timber of Fig. 5 rotates counterclockwise;
Fig. 8 is the A-A sectional view of Fig. 3
Fig. 9 is the structural representation of middle frame;
Figure 10 is Fig. 9 vertical view;
Figure 11 is the A-A sectional view of Fig. 9;
Figure 12 is the sketch map that the back timber of Figure 11 clockwise rotates;
Figure 13 is the sketch map that the back timber of Figure 11 rotates counterclockwise;
Figure 14 is the structural representation of after-frame;
Figure 15 is the vertical view of Figure 14;
Figure 16 is the A-A sectional view of Figure 14;
Figure 17 is the sketch map that the back timber of Figure 16 clockwise rotates;
Figure 18 is the sketch map that the back timber of Figure 16 rotates counterclockwise;
Figure 19 is the structural representation of T-shaped connector;
Figure 20 is the vertical view of Figure 19.
Support working state figure when Figure 21 tilts for top board
Among the figure: the 1-side arm, frame among the 2-, the 3-after-frame, 4-passes jack, 5-first back timber, the 6-caving shield, the 7-front rod, the 8-back link, 9-first base, 10-first widens base;
The 11-telescopic column, connecting rod on the 12-first, the 13-lower link, 14-T-shaped connector, the 15-extensible canopy, 16-extensible canopy jack, 17-first protects top board, 18-thruster jack, 19-supports jack, and 20-regulates jack;
21-lifts end jack, 22-second back timber, and 23-second base, 24-second widens base; Connecting rod on the 25-second, 26-second protects top board, 27-the 3rd base, 28-plate; 29-plate jack, 30-elevating conveyor, the anterior conveyer of 31-, 32-rear portion conveyer.
The specific embodiment
Elaborate below in conjunction with the specific embodiment of accompanying drawing to the utility model.
The end hydraulic support that can rotate referring to a kind of back timber illustrated in figures 1 and 2; Comprise a frame 2 and a secondary after-frame 3 in a secondary side arm 1, the pair; In the end that the front end of second base 23 of middle frame 2 is provided with 4, two passing jack of two passing jack is connected on the frame, the rear end of first base 9 of the other end and side arm 1 near; An end that also is provided with 4, two passing jack of two passing jack at the front end of the 3rd base 27 of after-frame 3 is connected on the after-frame, the rear end of second base 23 of the other end and middle frame 2 near; In first base, 9 front portions of side arm 1, the 3rd base 27 front portions of second base, 23 front portions of middle frame 2 and after-frame 3 are respectively equipped with two and lift end jack 21; On first base, second base and the 3rd base, be provided with elevating conveyor 30, on second base 23 of middle frame 2, be provided with anterior conveyer head 31, on the 3rd base 27 of after-frame 3, be provided with rear portion conveyer head 32.When the end, pricked in side arm, middle frame and after-frame migration, lift end jack first base, second base and the 3rd base are lifted respectively, under the effect of passing jack, realize reach smoothly.
Referring to Fig. 3 to Fig. 8 and Figure 19 to Figure 21, said side arm 1 comprises first base 9, first back timber 5, is located at four telescopic columns 11 between first base and first back timber; One end of first back timber 5 is hinged with the upper end of caving shield 6 through a T-shaped connector 14; The bottom of caving shield 6 is hinged with the upper end of two front rods 7 and two back links 8 respectively, and the lower end of two front rods 7 and two back links 8 is hinged with an end of first base 9 respectively; The other end of first back timber 5 is hinged through the upper end of connecting rod 12 on another T-shaped connector 14 and first, and the upper end of the lower end of connecting rod 12 and two lower links 13 is hinged on first, and the other end of the lower end of two lower links 13 and first base 9 is hinged; Like this, first back timber of side arm is realized the left-right rotation of first back timber around the center line of two T-shaped connectors through the up-down of four telescopic columns.
Referring to Fig. 9 to Figure 13 and Figure 19 to Figure 21, said in frame 2 comprise second base 23, second back timber 22, be located at four telescopic columns 11 between second base and second back timber; One end of second back timber 22 is hinged with the upper end of caving shield 6 through a T-shaped connector 14; The bottom of caving shield 6 is hinged with the upper end of two front rods 7 and two back links 8 respectively, and the lower end of two front rods 7 and two back links 8 is hinged with an end of second base 23 respectively; The other end of second back timber 22 is hinged through the upper end of connecting rod 25 on another T-shaped connector 14 and second, and the upper end of the lower end of connecting rod 25 and a lower link 13 is hinged on second, and the other end of the lower end of lower link 13 and second base 23 is hinged; Like this, second back timber of middle frame is realized the left-right rotation of second back timber around the center line of two T-shaped connectors through the up-down of four telescopic columns.
Referring to Figure 14 to Figure 18 and Figure 19 to Figure 21, said after-frame 3 comprises the 3rd base 27, second back timber 22, is located at four telescopic columns 11 between the 3rd base and second back timber; One end of second back timber 22 is hinged through the upper end of connecting rod 25 on the T-shaped connector 14 and second, and the upper end of the lower end of connecting rod 25 and a lower link 13 is hinged on second, and an end of the lower end of lower link 13 and the 3rd base 27 is hinged; The other end of second back timber 22 is hinged with the upper end of caving shield 6 through another T-shaped connector 14; The bottom of caving shield 6 is hinged with the upper end of two front rods 7 and two back links 8 respectively, and the lower end of two front rods 7 and two back links 8 is hinged with the other end of the 3rd base 27 respectively; Like this, second back timber of after-frame is realized the left-right rotation of second back timber around the center line of two T-shaped connectors through the up-down of four telescopic columns.
Be provided with in the both sides of first back timber 5 protect 17, six thruster jack 18 of top board an end respectively with protect that top board 17 is connected, the other end links to each other with first back timber 5, the withdrawal that realizes protecting top board under the effect of thruster jack and on turn over;
Be provided with plate 28 on the top board 17 protecting, an end of plate jack 29 be connected protect on the top board 17, the other end is connected on the plate 28, plate can stretch out to increase under the effect of plate jack and protect top area;
In the beam body of first back timber 5, be provided with two extensible canopy jack 16 and extensible canopy 15, when moving frame, release extensible canopy, can enlarge and protect top area through operation extensible canopy jack;
The end that both sides below first back timber 5 are respectively equipped with 20, four adjusting jack of two adjusting jack is connected with first back timber, the other end is connected with an end of a support jack 19 respectively; The other end of four support jack is under the effect of regulating jack, and stretch out rib side to high side, and be supported on the high side rib; First back timber of side arm supports when the tunnel is oblique pushes up; Support the jack support counter-force that rib produced by regulating the jack effect; The balance telescopic column supports the component of the side direction that oblique top board produces through back timber, makes the side arm active balance and supports tunnel Xie Ding, prevents riding;
Be connected with first respectively on the both sides of first base 9 and widen base 10, can alleviate the side arm floor pressure ratio Air holder, increase support stability, base is widened in dismounting when going into the well, and can guarantee that support goes into the well smoothly.
Be provided with an end that protects 17, six thruster jack 18 of top board in the both sides of second back timber 22 of middle frame 2 and protect with second that top board 26 is connected, the other end links to each other with second back timber 22 respectively, the withdrawal that realizes protecting top board under the effect of thruster jack and on turn over;
Protect to be provided with plate 28 on the top board 26 at second of middle frame 2, an end of plate jack 29 be connected second protect on the top board 26, the other end is connected on the plate 28, plate can stretch out to increase under the effect of plate jack and protect top area;
The end that both sides below second back timber 22 of middle frame 2 are respectively equipped with 20, four adjusting jack of two adjusting jack is connected with first back timber, the other end is connected with an end of a support jack 19 respectively; The other end of four support jack is under the effect of regulating jack, and stretch out rib side to high side, and be supported on the high side rib;
Second back timber of middle frame 2 supports when the tunnel is oblique pushes up; Support the jack support counter-force that rib produced by regulating the jack effect; The balance telescopic column supports the component of the side direction that oblique top board produces through back timber, in making the frame active balance with support tunnel Xie Ding, prevent riding;
Be connected with second respectively on the both sides of second base 23 of middle frame 2 and widen base 24, frame floor pressure ratio Air holder in alleviating, increase support stability, base is widened in dismounting when going into the well, and can guarantee that support goes into the well smoothly.
Be provided with in the both sides of second back timber 22 of after-frame 3 protect 17, six thruster jack 18 of top board an end respectively with protect that top board 17 is connected, the other end links to each other with second back timber 22, the withdrawal that realizes protecting top board under the effect of thruster jack and on turn over;
Protect to be provided with plate 28 on the top board 26 at second of after-frame 3, an end of plate jack 29 be connected second protect on the top board 26, the other end is connected on the plate 28, plate can stretch out to increase under the effect of plate jack and protect top area;
The end that both sides below second back timber 22 of after-frame 3 are respectively equipped with 20, four adjusting jack of two adjusting jack is connected with first back timber, the other end is connected with an end of a support jack 19 respectively; The other end of four support jack is under the effect of regulating jack, and stretch out rib side to high side, and be supported on the high side rib;
Second back timber of after-frame 3 supports when the tunnel is oblique pushes up; Support the jack support counter-force that rib produced by regulating the jack effect; The balance telescopic column supports the component of the side direction that oblique top board produces through back timber, makes the after-frame active balance and supports tunnel Xie Ding, prevents riding;
Be connected with second respectively on the both sides of the 3rd base 27 of after-frame 3 and widen base 24,, alleviate the side arm floor pressure ratio Air holder, increase support stability to guarantee when side arm is gone into the well.
Claims (8)
1. end hydraulic support that back timber can rotate; Comprise frame in the pair (2), a secondary after-frame (3) and at least one secondary side arm (1); It is characterized in that: the front end at second base (23) of middle frame (2) is provided with two passing jack (4), during an end of two passing jack is connected on the frame, the rear end of first base (9) of the other end and side arm (1) near; Front end at the 3rd base (27) of after-frame (3) also is provided with two passing jack (4), an end of two passing jack is connected on the after-frame, the rear end of second base (23) of the other end and middle frame (2) near; First base (9) at side arm (1) is anterior, second base (23) of middle frame (2) the 3rd base (27) front portion anterior and after-frame (3) is respectively equipped with two and lifts end jack (21); On first base, second base and the 3rd base, be provided with elevating conveyor (30), on second base (23) of middle frame (2), be provided with anterior conveyer head (31), on the 3rd base (27) of after-frame (3), be provided with rear portion conveyer head (32).
2. the end hydraulic support that a kind of back timber according to claim 1 can rotate is characterized in that: said side arm (1) comprises first base (9), first back timber (5), is located at four telescopic columns (11) between first base and first back timber; One end of first back timber (5) is hinged with the upper end of caving shield (6) through a T-shaped connector (14); The bottom of caving shield (6) is hinged with the upper end of two front rods (7) and two back links (8) respectively, and the lower end of two front rods (7) and two back links (8) is hinged with an end of first base (9) respectively; The other end of first back timber (5) is hinged through the upper end of connecting rod (12) on another T-shaped connector (14) and first; The upper end of the lower end of connecting rod on first (12) and two lower links (13) is hinged, and the other end of the lower end of two lower links (13) and first base (9) is hinged;
Frame (2) comprises second base (23), second back timber (22), is located at four telescopic columns (11) between second base and second back timber in said; One end of second back timber (22) is hinged with the upper end of caving shield (6) through a T-shaped connector (14); The bottom of caving shield (6) is hinged with the upper end of two front rods (7) and two back links (8) respectively, and the lower end of two front rods (7) and two back links (8) is hinged with an end of second base (23) respectively; The other end of second back timber (22) is hinged through the upper end of connecting rod (25) on another T-shaped connector (14) and second; The upper end of the lower end of connecting rod on second (25) and a lower link (13) is hinged, and the other end of the lower end of lower link (13) and second base (23) is hinged;
Said after-frame (3) comprises the 3rd base (27), second back timber (22), is located at four telescopic columns (11) between the 3rd base and second back timber; One end of second back timber (22) is hinged through the upper end of connecting rod (25) on the T-shaped connector (14) and second; The upper end of the lower end of connecting rod on second (25) and a lower link (13) is hinged, and an end of the lower end of lower link (13) and the 3rd base (27) is hinged; The other end of second back timber (22) is hinged with the upper end of caving shield (6) through another T-shaped connector (14); The bottom of caving shield (6) is hinged with the upper end of two front rods (7) and two back links (8) respectively, and the lower end of two front rods (7) and two back links (8) is hinged with the other end of the 3rd base (27) respectively.
3. the end hydraulic support that a kind of back timber according to claim 2 can rotate; It is characterized in that: be provided with in the both sides of first back timber (5) and protect top board (17), an end of six thruster jack (18) respectively with protect that top board (17) is connected, the other end links to each other with first back timber (5);
Be provided with plate (28) on the top board (17) protecting, an end of plate jack (29) is connected and protects that top board (17) is gone up, the other end is connected on the plate (28);
In the beam body of first back timber (5), be provided with two extensible canopy jack (16) and extensible canopy (15);
Both sides below first back timber (5) are respectively equipped with two adjusting jack (20), and an end of four adjusting jack is connected with first back timber, the other end is connected with an end of a support jack (19) respectively.
4. the end hydraulic support that a kind of back timber according to claim 1 and 2 can rotate is characterized in that: be connected with first respectively on the both sides of first base (9) and widen base (10).
5. the end hydraulic support that a kind of back timber according to claim 2 can rotate; It is characterized in that: be provided with in the both sides of second back timber (22) of middle frame and protect top board (17), an end of six thruster jack (18) protects with second that top board (26) is connected, the other end links to each other with second back timber (22) respectively;
Protect to be provided with plate (28) on the top board (26) at second of middle frame, an end of plate jack (29) is connected second and protects that top board (26) is gone up, the other end is connected on the plate (28);
Both sides below second back timber (22) of middle frame are respectively equipped with two adjusting jack (20), and an end of four adjusting jack is connected with first back timber, the other end is connected with an end of a support jack (19) respectively.
6. the end hydraulic support that a kind of back timber according to claim 1 and 2 can rotate is characterized in that: be connected with second respectively on the both sides of second base (23) of middle frame and widen base (24).
7. the end hydraulic support that a kind of back timber according to claim 2 can rotate; It is characterized in that: be provided with in the both sides of second back timber (22) of after-frame (3) and protect top board (17), an end of six thruster jack (18) respectively with protect that top board (17) is connected, the other end links to each other with second back timber (22);
Protect to be provided with plate (28) on the top board (26) at second of after-frame, an end of plate jack (29) is connected second and protects that top board (26) is gone up, the other end is connected on the plate (28);
Both sides below second back timber (22) of after-frame are respectively equipped with two adjusting jack (20), and an end of four adjusting jack is connected with first back timber, the other end is connected with an end of a support jack (19) respectively.
8. the end hydraulic support that a kind of back timber according to claim 1 and 2 can rotate is characterized in that: be connected with second respectively on the both sides of the 3rd base (27) of after-frame and widen base (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220048103 CN202578741U (en) | 2012-02-15 | 2012-02-15 | End hydraulic bracket with rotatable top beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220048103 CN202578741U (en) | 2012-02-15 | 2012-02-15 | End hydraulic bracket with rotatable top beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202578741U true CN202578741U (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220048103 Expired - Fee Related CN202578741U (en) | 2012-02-15 | 2012-02-15 | End hydraulic bracket with rotatable top beam |
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| Country | Link |
|---|---|
| CN (1) | CN202578741U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562114A (en) * | 2012-02-15 | 2012-07-11 | 重庆大江工业有限责任公司 | End hydraulic bracket with rotatable top beam |
| CN112576295A (en) * | 2020-12-16 | 2021-03-30 | 郑州煤矿机械集团股份有限公司 | Supporting advancing mechanism for transportation roadway |
-
2012
- 2012-02-15 CN CN 201220048103 patent/CN202578741U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562114A (en) * | 2012-02-15 | 2012-07-11 | 重庆大江工业有限责任公司 | End hydraulic bracket with rotatable top beam |
| CN112576295A (en) * | 2020-12-16 | 2021-03-30 | 郑州煤矿机械集团股份有限公司 | Supporting advancing mechanism for transportation roadway |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20190215 |
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| CF01 | Termination of patent right due to non-payment of annual fee |