CN2908786Y - High seam shield hydraulic support - Google Patents
High seam shield hydraulic support Download PDFInfo
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- CN2908786Y CN2908786Y CN 200620084646 CN200620084646U CN2908786Y CN 2908786 Y CN2908786 Y CN 2908786Y CN 200620084646 CN200620084646 CN 200620084646 CN 200620084646 U CN200620084646 U CN 200620084646U CN 2908786 Y CN2908786 Y CN 2908786Y
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- back timber
- jack
- caving shield
- shield
- bearing pin
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Abstract
A thick coal shielding hydraulic support can achieve comprehensively mechanized exploitation of thick coal and comprises a top beam, a shielding beam, a base, an upright post, a balance jack, a front link, a back link, a push jack and a control valve group. A side push jack, a long guide rod and a short guide rod are mounted in both the top beam and the shielding beam. The top beam and the shielding beam are provided with a side guard plate, respectively, and are articulated. Top and bottom of the balance jack are arranged on the top beam and the shielding beam, respectively. Top and bottom of the upright post are arranged on bottom of the top beam and the base, respectively. Tops of the front link and the back link are articulated to back end of the shielding beam, respectively with bottoms articulated to the base. The push jack is mounted on the base and the control valve group is mounted on bottom surface of the top beam. The utility model is large in height adjustment scope and rapid to move, improves stress of the support and service life of the support, is able to move the support and push a face conveyor automatically. The support is made of high strength low alloy steel sheets, which reduces volume and weight of the support.
Description
Technical field
The utility model relates to a kind of mining hydraulic shield support, relates in particular to a kind of thick coal-bed shield hydraulic support.
Background technology
Comprehensive mining hydraulic bracket is one of colliery comprehensive mechanical coal mining work plane capital equipment, it and coal-winning machine, the supporting use of conveyer, and the major function of hydraulic support is the support and management top board, isolate the goaf, safeguard the coal mining activity space, and can move forward voluntarily, advance coal-face.At present, the hydraulic support that the mine coal seam exploitation is used comprises back timber, caving shield, base, two columns, front rod, back link, passing jack and operating valve set; The rear end of back timber and the front end of caving shield are in the hinge connection by jointed shaft; The upper end of column is installed on the axle bed of back timber bottom surface by bearing pin, and becomes to be rotatably connected relatively with it, and the lower end of column is installed on the base by bearing pin, and becomes to be rotatably connected relatively with it; The upper end of front rod is installed in the rear end of caving shield by jointed shaft, and the lower end of front rod is installed on the base by jointed shaft; Back link is installed in the rear side of front rod, and the upper end of back link is installed in the rear end of caving shield by jointed shaft, and the lower end of back link is installed on the base by jointed shaft; Passing jack is the front and back horizontal positioned, and its rear end is installed on the axle bed of base by bearing pin; The front end of passing jack is fixedly connected with push rod, and the rear end of push rod is installed in the front end of passing jack by bearing pin, and the front end of push rod is fixedly connected with connector by bearing pin; Operating valve set is fixedly mounted on the bottom surface of back timber, and operating valve set is comprising: column control valve and pass the jack control valve; The column control valve is connected with two column hydraulic pressure by the column hydralic hose, passes the jack control valve and is connected with the passing jack hydraulic by passing the jack hydraulic sebific duct.This hydraulic support provides high-pressure emulsion as power by emulsion power pack, controls corresponding functional part respectively by each control valve on the operating valve set, that is: the lifting of the flexible and then control back timber of two columns of column control valve control; Passing the jack control valve controls stretching out of passing jack and then promotes push rod to pass drag conveyor, pass the retraction of jack control valve control passing jack and then to spur push rod with mobile hydraulic support.During this hydraulic support is applicable to, the exploitation of girdle, but the back timber lifting space of this hydraulic support is little, buries deeply for working seam, the geological conditions complexity, tomography is many, big high seam is pressed in the ore deposit, result of use is poor; In addition, the fluid pressure line of this hydraulic support is arranged in disorder, irregular, causes confusion easily in actual use, makes troubles.
Summary of the invention
The utility model purpose provides a kind of thick coal-bed shield hydraulic support that is suitable for exploiting high seam.
For achieving the above object, the technical solution adopted in the utility model is: a kind of thick coal-bed shield hydraulic support, comprising back timber, caving shield, base, column, front rod, back link, passing jack and operating valve set; The rear end of back timber and the front end of caving shield are in the hinge connection by jointed shaft; The upper end of column is installed on the axle bed of back timber bottom surface by bearing pin, and becomes to be rotatably connected relatively with it, and the lower end of column is installed on the base by bearing pin, and becomes to be rotatably connected relatively with it; The upper end of front rod is installed in the rear end of caving shield by jointed shaft, and the lower end of front rod is installed on the base by jointed shaft; Back link is installed in the rear side of front rod, and the upper end of back link is installed in the rear end of caving shield by jointed shaft, and the lower end of back link is installed on the base by jointed shaft; Passing jack is the front and back horizontal positioned, and its rear end is installed on the axle bed of base by bearing pin; The front end of passing jack is fixedly connected with push rod, and the rear end of push rod is installed in the front end of passing jack by bearing pin, and the front end of push rod is fixedly connected with connector by bearing pin; Operating valve set is fixedly mounted on the base, and operating valve set is comprising: column control valve and pass the jack control valve; The column control valve is connected with column hydraulic pressure by the column hydralic hose, passes the jack control valve and is connected with the passing jack hydraulic by passing the jack hydraulic sebific duct; It is characterized in that: this thick coal-bed shield hydraulic support also comprises balance jack, the upper end of balance jack is installed on the axle bed of bottom surface, back timber rear portion by bearing pin, and become to be rotatably connected relatively with it, the lower end of balance jack is installed on the axle bed of bottom surface, caving shield middle part by bearing pin, and becomes to be rotatably connected relatively with it; Back timber has inner chamber, and back timber thruster jack is installed in the inner chamber of back timber, the left side of back timber be equipped with can left and right telescopic movable the back timber side guard board, back timber thruster jack and back timber side guard board interconnect; Caving shield has inner chamber, and caving shield thruster jack is installed in the inner chamber of caving shield, the left side of caving shield be equipped with can left and right telescopic movable the caving shield side guard board, caving shield thruster jack and caving shield side guard board interconnect; Operating valve set also comprises: balance jack control valve and thruster jack control valve, the balance jack control valve is connected with balance jack hydraulic pressure by the balance jack hydralic hose, and thruster jack control valve is connected with back timber thruster jack hydraulic with caving shield thruster jack respectively by thruster jack hydraulic sebific duct.
In technique scheme, long guide rod of back timber and back timber short-range missile bar are installed in the inner chamber of back timber, the long guide rod of back timber and back timber short-range missile bar become to horizontally slip with the inner chamber of corresponding back timber respectively and are connected; Described back timber pushes away jack and described back timber side guard board interconnects by the long guide rod of back timber, and the right-hand member of the long guide rod of back timber is fixedlyed connected with back timber thruster jack, and the left end of the long guide rod of back timber is fixedlyed connected with the back timber side guard board; Have the back timber Internal baffle in the inner chamber of back timber, be installed with top beam spring on the left side wall of back timber Internal baffle, the right-hand member of top beam spring is fixedlyed connected with the left side wall of back timber Internal baffle, the right-hand member of back timber short-range missile bar is fixedlyed connected with the left end of top beam spring, and the left end of back timber short-range missile bar is fixedlyed connected with the back timber side guard board.
In technique scheme, the front end of back timber is connected with the secondary face guard by bearing pin, the front end of secondary face guard is connected with the one-level face guard by bearing pin, back timber be connected with an end of secondary wall supporting jack below by bearing pin, the other end of secondary wall supporting jack is connected below the secondary face guard by bearing pin, the secondary face guard is connected with an end of one-level wall supporting jack below by bearing pin, the other end of one-level wall supporting jack by bearing pin be connected the one-level face guard below.
In technique scheme, be equipped with on the base and lift end jack.
In technique scheme, the structural member of this thick coal-bed shield hydraulic support selects for use Aldecor plate Q550 to make.
The utility model provides high-pressure emulsion as power by emulsion power pack in use, controls corresponding functional part respectively by each control valve on the operating valve set, that is: the lifting of the flexible and then control back timber of two columns of column control valve control; Passing the jack control valve controls stretching out of passing jack and then promotes push rod to pass drag conveyor, pass the retraction of jack control valve control passing jack and then to spur push rod with mobile hydraulic support; Balance jack control valve control balance jack flexible and then adjusted back timber in the horizontal direction; The activity of thruster jack control valve control thruster jack and then control back timber side guard board and caving shield side guard board.Design has a balance jack in the utility model, and when under the guiding function of back timber at column during lifting, balance jack can play coordinative role, in the horizontal direction the adjusted back timber; But the left side of back timber is equipped with the back timber side guard board of left and right sides telescopic movable, but the left side of caving shield is equipped with the caving shield side guard board of left and right sides telescopic movable, the back timber side guard board has increased the supporting area of back timber to the coal seam, and the caving shield side guard board has increased the shielding of caving shield to working space; In the inner chamber of the inner chamber of back timber, caving shield, long and short guide rod device has been installed respectively, has improved the intensity and the reliability of back timber side guard board, caving shield side guard board guiding device; The Front-end Design of back timber has the two-stage face guard, can operate the wall supporting jack when needing wall supporting, makes the face guard bottom be adjacent to rib.Thus, the utility model is applicable to the exploitation of high seam, realizes the high seam fully-mechanized mining.
The beneficial effects of the utility model are: 1, supporting, to heighten scope big, advancing velocity is fast, work plane output height, 2, by optimal design, improved the force-bearing situation of support, the application life of having improved support.3, move frame voluntarily, pass face conveyor automatically, guarantee operating personnel's safety.4, the structural member of hydraulic support selects for use High-Strength Low-Alloy Q550 steel plate to make, and can alleviate the volume and weight of support.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A sectional drawing of Fig. 1;
Fig. 3 is the B-B sectional drawing of Fig. 1;
Fig. 4 is the C-C sectional drawing of Fig. 1;
Fig. 5 is the D-D sectional drawing of Fig. 1;
Fig. 6 is a base plan structure schematic diagram of the present utility model.
In the accompanying drawing: 1, one-level face guard; 2, secondary face guard; 3, one-level wall supporting jack; 4, secondary wall supporting jack; 5, back timber; 6, column; 7, back timber active side backplate; 8, caving shield; 9, balance jack; 10, caving shield active side backplate; 11, front rod; 12, operating valve set; 13, back link; 14, base; 15, pass jack; 16, pedal; 17, push rod; 18, connector; 19, lift end jack; 20, the long guide rod of back timber; 21, back timber thruster jack; 22, back timber side guard board; 23, back timber short-range missile bar; 24, top beam spring; 25, back timber Internal baffle; 26, caving shield short-range missile bar; 27, caving shield spring; 28, caving shield Internal baffle; 29, caving shield side guard board; 30, shielding beam length guide rod; 31, caving shield thruster jack.
The specific embodiment
The utility model will be further described below in conjunction with the drawings and specific embodiments.
A kind of thick coal-bed shield hydraulic support is as Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, comprising back timber 5, caving shield 8, base 14, column 6, front rod 11, back link 13, passing jack 15 and operating valve set 12; The front end of the rear end of back timber 5 and caving shield 8 is in the hinge connection by jointed shaft; The upper end of column 6 is installed on the axle bed of back timber 5 bottom surfaces by bearing pin, and becomes to be rotatably connected relatively with it, and the lower end of column 6 is installed on the base 14 by bearing pin, and becomes to be rotatably connected relatively with it; The upper end of front rod 11 is installed in the rear end of caving shield 8 by jointed shaft, and the lower end of front rod 11 is installed on the base 14 by jointed shaft; Back link 13 is installed in the rear side of front rod 11, and the upper end of back link 13 is installed in the rear end of caving shield 8 by jointed shaft, and the lower end of back link 13 is installed on the base 14 by jointed shaft; Passing jack 15 is the front and back horizontal positioned, and its rear end is installed on the axle bed of base 14 by bearing pin; The front end of passing jack 15 is fixedly connected with push rod 17, and the rear end of push rod 17 is installed in the front end of passing jack 15 by bearing pin, and the front end of push rod 17 is fixedly connected with connector 18 by bearing pin; Operating valve set 12 is fixedly mounted on the base 14, and operating valve set 12 is comprising: column control valve and pass the jack control valve; The column control valve is connected with column 6 hydraulic pressure by the column hydralic hose, passes the jack control valve and is connected with passing jack 15 hydraulic pressure by passing the jack hydraulic sebific duct; It is characterized in that: this thick coal-bed shield hydraulic support also comprises balance jack 9, the upper end of balance jack 9 is installed on the axle bed of bottom surface, back timber 5 rear portion by bearing pin, and become to be rotatably connected relatively with it, the lower end of balance jack 9 is installed on the axle bed of bottom surface, caving shield 8 middle part by bearing pin, and becomes to be rotatably connected relatively with it; Back timber 5 has inner chamber, and back timber thruster jack 21 is installed in the inner chamber of back timber 5, the left side of back timber 5 be equipped with can left and right telescopic movable back timber side guard board 22, back timber thruster jack 21 interconnects with back timber side guard board 22; Caving shield 8 has inner chamber, and caving shield thruster jack 31 is installed in the inner chamber of caving shield 8, the left side of caving shield 8 be equipped with can left and right telescopic movable caving shield side guard board 29, caving shield thruster jack 31 interconnects with caving shield side guard board 29; Operating valve set 12 also comprises: balance jack control valve and thruster jack control valve, the balance jack control valve is connected with balance jack 9 hydraulic pressure by the balance jack hydralic hose, and thruster jack control valve is connected with back timber thruster jack 21 hydraulic pressure with caving shield thruster jack 31 respectively by thruster jack hydraulic sebific duct; In the present embodiment, long guide rod 20 of back timber and back timber short-range missile bar 23 are installed in the inner chamber of back timber 5, the long guide rod 20 of back timber and back timber short-range missile bar 23 become to horizontally slip with the inner chamber of corresponding back timber 5 respectively and are connected; Described back timber pushes away jack 31 and interconnects by the long guide rod 20 of back timber with described back timber side guard board 22, and the right-hand member of the long guide rod 20 of back timber is fixedlyed connected with back timber thruster jack 21, and the left end of the long guide rod 20 of back timber is fixedlyed connected with back timber side guard board 22; Have back timber Internal baffle 25 in the inner chamber of back timber 5, be installed with top beam spring 24 on the left side wall of back timber Internal baffle 25, the right-hand member of top beam spring 24 is fixedlyed connected with the left side wall of back timber Internal baffle 25, the right-hand member of back timber short-range missile bar 23 is fixedlyed connected with the left end of top beam spring 24, and the left end of back timber short-range missile bar 23 is fixedlyed connected with back timber side guard board 22; In the present embodiment, shielding beam length guide rod 30 and caving shield short-range missile bar 26 are installed in the inner chamber of caving shield 8; Shielding beam length guide rod 30 and caving shield short-range missile bar 26 become to horizontally slip with the inner chamber of corresponding caving shield 8 respectively and are connected; Described caving shield thruster jack 31 interconnects by shielding beam length guide rod 30 with described caving shield side guard board 29, the right-hand member of shielding beam length guide rod 30 is fixedlyed connected with caving shield thruster jack 31, and the left end of shielding beam length guide rod 30 is fixedlyed connected with caving shield side guard board 29; Have caving shield Internal baffle 28 in the inner chamber of caving shield 8, be installed with caving shield spring 27 on the left side wall of caving shield Internal baffle 28, the right-hand member of caving shield spring 27 is fixedlyed connected with the left side wall of caving shield Internal baffle 28, the right-hand member of caving shield short-range missile bar 26 is fixedlyed connected with the left end of caving shield spring 27, and the left end of caving shield short-range missile bar 26 is fixedlyed connected with caving shield side guard board 29; In the present embodiment, the front end of back timber 5 is connected with secondary face guard 2 by bearing pin, the front end of secondary face guard 2 is connected with one-level face guard 1 by bearing pin, back timber 5 be connected with an end of secondary wall supporting jack 4 below by bearing pin, the other end of secondary wall supporting jack 4 is connected below the secondary face guard 2 by bearing pin, secondary face guard 2 is connected with an end of one-level wall supporting jack 3 below by bearing pin, the other end of one-level wall supporting jack 3 by bearing pin be connected one-level face guard 1 below; In the present embodiment, be equipped with on the base 14 and lift end jack 19.
The utility model structural member is as back timber, caving shield, base, front and rear connecting rods etc. select for use Aldecor plate Q550 (GB/T16270-1996) to substitute low alloy steel plate Q345, the sheet material welding performance is good, cold crack sensitiveness index CET only is 0.235%, welding pre-heating temperature Tp only is 80 ℃, and tensile strength can reach 830MPa.Can alleviate the volume and weight of support.
Operating principle of the present utility model:
When under coal mine, using the utility model, many utility model are arranged in a row,, take to face the frame control operation in order to guarantee operating personnel's personal safety according to the working space under the coal mine.The utility model provides high-pressure emulsion as power by emulsion power pack, high-pressure emulsion from pumping plant, deliver to work plane through main feed tube, and with the feed liquor stop valve importing the utility model that links, again by the hydraulic cylinder of each control valve difference dosing on the operating valve set, to finish the needed work that respectively pushes of the utility model to corresponding functional part.The low pressure emulsion that refluxes from the utility model flows back to pumping plant emulsion box with returning the liquid stop valve by main liquid back pipe road by operating valve set, for recycling.
The elemental motion that the utility model is operated mainly is divided into: back timber landing, whole reach of the present utility model, back timber rise the activity of roof supporting, propelling conveyer and back timber side guard board, caving shield side guard board.
1, back timber landing
Column control valve in the operating valve set is pulled to falling the post position, made the column band back timber and descend, when reducing to desired height, the column control valve is turned back the centre position, back timber promptly stops to descend.Guarantee the parallel decline of back timber, need the activity of operation balance jack control valve control balance jack, and then regulate back timber.
2, whole reach of the present utility model
After falling post, earlier fixed point is set, connector of the present utility model is fixedlyed connected with fixed point, push move the passing jack control valve in the operating valve set to chord position then and put in the place ahead of the present utility model, make the piston rod retraction of passing jack, thereby the pulling support moves forward.When the support reach puts in place, will pass the jack control valve and turn back the centre position, support promptly stops reach.
3, back timber rises and supports roof
After support moves on to the position, the column control valve in the operating valve set is pulled to the setting prop position, the column piston rod stretches out supporting top beam and rises, and after back timber and roof are close to, closes the column control valve.In the column uphill process, need the collaborative balance jack control valve of handling to control balance jack equally, and then regulate back timber.
4, advance transporter
When the needs moving conveyor, earlier connector of the present utility model is fixedlyed connected with conveyer, then the passing jack control valve in the operating valve set is pulled to the pushing and sliding position, the passing jack piston rod is stretched out, push anterior conveyer to rib by push rod, will pass the jack control valve after putting in place and turn back the centre position and get final product.
5, the activity of back timber side guard board, caving shield side guard board
When using the utility model, spring in back timber and the caving shield ejects back timber side guard board, caving shield side guard board by back timber short-range missile bar, caving shield short-range missile bar respectively, the long guide rod of back timber, shielding beam length guide rod are respectively along with back timber side guard board, caving shield side guard board stretch out, because it is passive state that the interior thruster jack of this moment back timber and caving shield is in unloaded state, the piston rod of thruster jack also stretches out thereupon.When needs back timber side guard board, the travelling backwards of caving shield side guard board, thruster jack control valve on the manipulation valve group, high-pressure emulsion is promptly exported by the control valve liquid outlet, by thruster jack control valve, enter the plunger shaft of thruster jack, make the piston rod retraction of thruster jack, drive the long guide rod of back timber, the travelling backwards of shielding beam length guide rod, and then drive the travelling backwards of back timber side guard board, caving shield side guard board.
6, bottom raising mechanism
Bottom raising mechanism is formed by lifting end jack and bearing pin etc., and main effect is: if pricking at the end appears in the bracket base front end, when moving frame, utilization is lifted the end jack support is lifted, thereby reduces to move the frame resistance.
Remarkable advantage of the present utility model is: 1, supporting, to heighten scope big, advancing velocity is fast, working face The output height, 2, by optimal design, improved the force-bearing situation of support, the use longevity of having improved support Life. 3, move voluntarily frame, automatically pass face conveyor, guarantee operating personnel's safety. 4, hydraulic supporting The structural member of frame selects High-Strength Low-Alloy Q550 steel plate to make, and can alleviate the volume and weight of support.
Claims (6)
1, a kind of thick coal-bed shield hydraulic support is comprising back timber (5), caving shield (8), base (14), column (6), front rod (11), back link (13), passing jack (15) and operating valve set (12); The front end of the rear end of back timber (5) and caving shield (8) is in the hinge connection by jointed shaft; The upper end of column (6) is installed on the axle bed of back timber (5) bottom surface by bearing pin, and becomes to be rotatably connected relatively with it, and the lower end of column (6) is installed on the base (14) by bearing pin, and becomes to be rotatably connected relatively with it; The upper end of front rod (11) is installed in the rear end of caving shield (8) by jointed shaft, and the lower end of front rod (11) is installed on the base (14) by jointed shaft; Back link (13) is installed in the rear side of front rod (11), and the upper end of back link (13) is installed in the rear end of caving shield (8) by jointed shaft, and the lower end of back link (13) is installed on the base (14) by jointed shaft; Passing jack (15) is the front and back horizontal positioned, and its rear end is installed on the axle bed of base (14) by bearing pin; The front end of passing jack (15) is fixedly connected with push rod (17), and the rear end of push rod (17) is installed in the front end of passing jack (15) by bearing pin, and the front end of push rod (17) is fixedly connected with connector (18) by bearing pin; Operating valve set (12) is fixedly mounted on the base (14), and operating valve set (12) is comprising: column control valve and pass the jack control valve; The column control valve is connected with column (6) hydraulic pressure by the column hydralic hose, passes the jack control valve and is connected with passing jack (15) hydraulic pressure by passing the jack hydraulic sebific duct; It is characterized in that: this thick coal-bed shield hydraulic support also comprises balance jack (9), the upper end of balance jack (9) is installed on the axle bed of back timber (5) bottom surface, rear portion by bearing pin, and become to be rotatably connected relatively with it, the lower end of balance jack (9) is installed on the axle bed of bottom surface, caving shield (8) middle part by bearing pin, and becomes to be rotatably connected relatively with it; Back timber (5) has inner chamber, and back timber thruster jack (21) is installed in the inner chamber of back timber (5), the left side of back timber (5) be equipped with can left and right telescopic movable back timber side guard board (22), back timber thruster jack (21) interconnects with back timber side guard board (22); Caving shield (8) has inner chamber, caving shield thruster jack (31) is installed in the inner chamber of caving shield (8), the left side of caving shield (8) be equipped with can left and right telescopic movable caving shield side guard board (29), caving shield thruster jack (31) interconnects with caving shield side guard board (29); Operating valve set (12) also comprises: balance jack control valve and thruster jack control valve, the balance jack control valve is connected with balance jack (9) hydraulic pressure by the balance jack hydralic hose, and thruster jack control valve is connected with back timber thruster jack (21) hydraulic pressure with caving shield thruster jack (31) respectively by thruster jack hydraulic sebific duct.
2, thick coal-bed shield hydraulic support according to claim 1, it is characterized in that: long guide rod of back timber (20) and back timber short-range missile bar (23) are installed in the inner chamber of described back timber (5), and the long guide rod of back timber (20) and back timber short-range missile bar (23) become to horizontally slip with the inner chamber of corresponding back timber (5) respectively and are connected; Described back timber pushes away jack (31) and interconnects by the long guide rod of back timber (20) with described back timber side guard board (22), the right-hand member of the long guide rod of back timber (20) is fixedlyed connected with back timber thruster jack (21), the long guide rod of back timber (20). left end fixedly connected with back timber side guard board (22); Have back timber Internal baffle (25) in the inner chamber of back timber (5), be installed with top beam spring (24) on the left side wall of back timber Internal baffle (25), the right-hand member of top beam spring (24) is fixedlyed connected with the left side wall of back timber Internal baffle (25), the right-hand member of back timber short-range missile bar (23) is fixedlyed connected with the left end of top beam spring (24), and the left end of back timber short-range missile bar (23) is fixedlyed connected with back timber side guard board (22).
3, thick coal-bed shield hydraulic support according to claim 1 and 2 is characterized in that: shielding beam length guide rod (30) and caving shield short-range missile bar (26) are installed in the inner chamber of described caving shield (8); Shielding beam length guide rod (30) and caving shield short-range missile bar (26) horizontally slip with the inner chamber one-tenth of corresponding caving shield (8) respectively and are connected; Described caving shield thruster jack (31) interconnects by shielding beam length guide rod (30) with described caving shield side guard board (29), the right-hand member of shielding beam length guide rod (30) is fixedlyed connected with caving shield thruster jack (31), and the left end of shielding beam length guide rod (30) is fixedlyed connected with caving shield side guard board (29); Have caving shield Internal baffle (28) in the inner chamber of caving shield (8), be installed with caving shield spring (27) on the left side wall of caving shield Internal baffle (28), the right-hand member of caving shield spring (27) is fixedlyed connected with the left side wall of caving shield Internal baffle (28), the right-hand member of caving shield short-range missile bar (26) is fixedlyed connected with the left end of caving shield spring (27), and the left end of caving shield short-range missile bar (26) is fixedlyed connected with caving shield side guard board (29).
4, thick coal-bed shield hydraulic support according to claim 3, it is characterized in that: the front end of described back timber (5) is connected with secondary face guard (2) by bearing pin, the front end of secondary face guard (2) is connected with one-level face guard (1) by bearing pin, back timber (5) be connected with an end of secondary wall supporting jack (4) below by bearing pin, the other end of secondary wall supporting jack (4) is connected below the secondary face guard (2) by bearing pin, secondary face guard (2) is connected with an end of one-level wall supporting jack (3) below by bearing pin, the other end of one-level wall supporting jack (3) by bearing pin be connected one-level face guard (1) below.
5, thick coal-bed shield hydraulic support according to claim 4 is characterized in that: be equipped with on the described base (14) and lift end jack (19).
6, thick coal-bed shield hydraulic support according to claim 1 is characterized in that: the structural member of this thick coal-bed shield hydraulic support selects for use High-Strength Low-Alloy Q550 steel plate to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620084646 CN2908786Y (en) | 2006-05-20 | 2006-05-20 | High seam shield hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620084646 CN2908786Y (en) | 2006-05-20 | 2006-05-20 | High seam shield hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2908786Y true CN2908786Y (en) | 2007-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620084646 Expired - Fee Related CN2908786Y (en) | 2006-05-20 | 2006-05-20 | High seam shield hydraulic support |
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| Country | Link |
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| CN (1) | CN2908786Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943016A (en) * | 2010-08-17 | 2011-01-12 | 天地科技股份有限公司 | Novel shielding full-mechanized mining hydraulic bracket for extremely thin coal bed |
| CN102151942A (en) * | 2011-03-17 | 2011-08-17 | 山东矿机集团股份有限公司 | Hydraulic support self-preheating and automatic step-by-step welding process |
| CN101832145B (en) * | 2009-03-13 | 2015-07-22 | 李泽宇 | Connecting device |
| CN106014465A (en) * | 2016-06-16 | 2016-10-12 | 天地科技股份有限公司 | Integrated one-way operation self-locking movable side guard plate fixing device |
-
2006
- 2006-05-20 CN CN 200620084646 patent/CN2908786Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832145B (en) * | 2009-03-13 | 2015-07-22 | 李泽宇 | Connecting device |
| CN101943016A (en) * | 2010-08-17 | 2011-01-12 | 天地科技股份有限公司 | Novel shielding full-mechanized mining hydraulic bracket for extremely thin coal bed |
| CN102151942A (en) * | 2011-03-17 | 2011-08-17 | 山东矿机集团股份有限公司 | Hydraulic support self-preheating and automatic step-by-step welding process |
| CN106014465A (en) * | 2016-06-16 | 2016-10-12 | 天地科技股份有限公司 | Integrated one-way operation self-locking movable side guard plate fixing device |
| CN106014465B (en) * | 2016-06-16 | 2018-05-08 | 天地科技股份有限公司 | A kind of self-contained unidirectional manipulation self-locking movable side guard plate fixing device |
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