CN108868765B - Hydraulic lifting device for preventing middle groove of thin coal seam scraper conveyor from drifting - Google Patents
Hydraulic lifting device for preventing middle groove of thin coal seam scraper conveyor from drifting Download PDFInfo
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- CN108868765B CN108868765B CN201810675342.1A CN201810675342A CN108868765B CN 108868765 B CN108868765 B CN 108868765B CN 201810675342 A CN201810675342 A CN 201810675342A CN 108868765 B CN108868765 B CN 108868765B
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- 239000003245 coal Substances 0.000 title claims abstract description 36
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 210000005056 cell body Anatomy 0.000 claims 2
- 238000007790 scraping Methods 0.000 claims 1
- 238000005065 mining Methods 0.000 description 9
- 230000009471 action Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/20—General features of equipment for removal of chippings, e.g. for loading on conveyor
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Feeding Of Articles To Conveyors (AREA)
Abstract
The invention discloses a hydraulic lifting device for preventing a middle groove of a thin coal seam scraper conveyor from drifting, which comprises a push plate, a support frame, a guide block and a lifting jack, wherein the push plate is welded on a middle groove body; the two sides of the lifting jack are fixedly connected with guide blocks, the guide blocks are integrally T-shaped, the lifting jack is connected and limited between the two pushing plates through the mutual matching of the guide blocks connected with the lifting jack and the T-shaped grooves, when the lifting jack is limited, a piston rod faces downwards, the head of the piston rod is fixed on the support frame, and a cable groove is connected above the T-shaped grooves on the pushing plates. The invention designs a jack lifting device to prevent the middle trough from drifting, so that the middle trough can normally operate under complex working conditions such as the middle trough.
Description
Technical Field
The invention relates to the technical field of scraper conveyors, in particular to a hydraulic lifting device for preventing a middle groove of a thin coal seam scraper conveyor from drifting.
Background
When the coal mining operation of the thin coal seam is carried out, the middle groove body is of an integral cast-welded bottom-sealed tooth-shaped pin rail type, the tooth rail seat rail is placed on the side surface of the baffle ledge, the guide and bearing tasks of a coal mining machine are undertaken, the coal mining machine is also in charge of shoveling and loading coal on the coal wall side of the working face, the thin coal seam scraper conveyor is light in weight, the pushing point is lower than the ground, under the thrust action of the pushing rod of the hydraulic support on the middle groove, the scraper ledge of the scraper conveyor cannot be well attached to the bottom plate of the working face to move forwards, the shovel plate is warped and not easy to recover the coal, the phenomenon of 'drifting' of the middle groove body is caused, and the phenomenon is.
Disclosure of Invention
The invention provides a hydraulic lifting device for preventing a middle trough of a thin coal seam scraper conveyor from drifting, and aims to solve the problem that the middle trough body drifts due to the impact force of complex working conditions such as a large coal trough and the like when a middle trough is used for mining coal in the prior art.
The object of the invention is achieved in the following way:
the hydraulic lifting device for preventing the middle groove of the thin coal seam scraper conveyor from drifting comprises a push plate 1, a support frame 2, a guide block 4 and a lifting jack 3, wherein the push plate 1, the support frame 2, the guide block 4 and the lifting jack 3 are welded on a middle groove body 6, the two push plates 1 are arranged in the middle of the support frame 2 along the length direction of the middle groove body 6, the bottom end of the middle part of each push plate 1 is rotatably connected with the front end of the support frame 2, a push hole 11 for connecting a support is formed in the tail part of each push plate 1, a T-shaped groove 13 for clamping the guide block 4 is formed in each push plate 1, and the T-shaped groove 13 is located between; the two sides of the lifting jack 3 are fixedly connected with the guide blocks 4, the guide blocks 4 are integrally T-shaped, the lifting jack 3 is connected between the two pushing plates 1 in a limiting mode through the guide blocks 4 connected with the lifting jack 3 and the T-shaped grooves 13 in a matching mode, the piston rod 31 of the lifting jack 3 faces downwards when the lifting jack is limited, the head of the piston rod 31 is fixed on the supporting frame 2, and the cable groove 7 is connected above the T-shaped grooves 13 on the pushing plates 1.
The pushing plate 1 and the supporting frame 2 are rotatably connected through a pin shaft 5.
The front section of the pushing plate 1 is a U-shaped groove I12, and the front end of the U-shaped groove I12 is welded on the middle groove body 6.
The support frame 2 comprises a bottom plate 22, the rear section of the bottom plate 22 is tilted, a square notch is formed in the rear section of the middle of the bottom plate 22, rib plates 23 are welded on two sides of the square notch above the bottom plate 22, pin holes II 24 are formed in the front ends of the rib plates 23, and lug plate clamping seats 21 used for fixing the piston rods 31 are arranged in the middle of the rib plates 23 close to the square notch.
During operation backing plate I9 has been welded to the welding of the anterior segment below of thrust plate 1, and backing plate II 10 has been welded to the lower extreme welding of the lapse hole 11 of thrust plate 1.
The middle part of guide block 4 is equipped with through-hole II 42 that is used for fixed jack 3 that raises and dodges and raise jack 3 and connect U-shaped groove II 41, and U-shaped groove II 41 and through-hole II 42 are vertical range from top to bottom.
The lifting jack 3 is a hydraulic jack.
A connecting plate 16 is welded above the T-shaped groove 13 on the pushing plate 1, the connecting plate 16 is connected with the cable groove 7 through a bolt, and a hole facilitating the up-and-down movement of the guide block 4 is formed in the connecting plate 16.
Has the advantages that: compared with the prior art, the hydraulic jack lifting device is additionally arranged on the side of the baffle plate of the conveyor, when the ledge of the shovel plate of the conveyor cannot be attached to the bottom plate of the working face to move forwards, the height of the push hole is lifted by the hydraulic jack lifting device, the binding force of the conveyor is increased, and the coal mining, coal loading and bottom plate cleaning operation of the working face can still be normally carried out under complex working conditions such as a middle groove.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the assembly of the present invention with a center channel and a cable channel.
Fig. 3 is a top view of the left side view of fig. 2.
Fig. 4 is a diagram showing an operation state of the present invention.
Fig. 5 is a schematic view of the structure of the pusher plate.
Fig. 6 is a top view of the support stand.
Fig. 7 is a left side view of fig. 6.
Fig. 8 is a schematic structural view of the guide block.
Fig. 9 is a schematic structural view of the elevation jack.
FIG. 10 is an assembly view of the middle channel and pusher plate.
Wherein, 1 is a pushing plate; 2 is a support frame; 3 is a lifting jack; 4 is a guide block; 5 is a pin shaft; 6 is a middle trough body; 7 is a cable groove; 8 is a coal mining machine; 9 is a backing plate I; 10 is a backing plate II; 11 is a pushing hole; 12 is a U-shaped groove I; 13 is a T-shaped slot; 14 is an inverted U-shaped groove; 15 is a pin hole I; 16 is a coupling plate; 21 is an ear plate clamping seat; 22 is a bottom plate; 23 is a rib plate; 24 is pin hole II; 31 is a piston rod; 32 is a hose connector; 33 is a trunnion; 34 is a through hole I; 41 is a U-shaped groove II; 42 is a through hole ii.
Detailed Description
As shown in fig. 1-10, the hydraulic lifting device for preventing the middle groove of the thin coal seam scraper conveyor from drifting comprises a push plate 1 welded on a middle groove body 6, a support frame 2, a guide block 4 and a lifting jack 3, wherein the middle part of the support frame 2 is provided with two push plates 1 along the length direction of the middle groove body 6, the bottom end of the middle part of each push plate 1 is rotatably connected with the front end of the support frame 2, the tail part of each push plate 1 is provided with a push hole 11 for connecting a support (not shown in the figures), the push plate 1 is provided with a T-shaped groove 13 for clamping the guide block 4, and the T-shaped groove 13 is positioned between the push hole 11 and the rotary connection part of the push plate 1 and the support frame 2; the two sides of the lifting jack 3 are fixedly connected with the guide blocks 4, the guide blocks 4 are integrally T-shaped, the lifting jack 3 is connected between the two pushing plates 1 in a limiting mode through the guide blocks 4 connected with the lifting jack 3 and the T-shaped grooves 13 in a matching mode, the piston rod 31 of the lifting jack 3 faces downwards when the lifting jack is limited, the head of the piston rod 31 is fixed on the supporting frame 2, and the cable groove 7 is connected above the T-shaped grooves 13 on the pushing plates 1. In operation, as shown in fig. 4, the coal mining machine 8 is positioned at the upper part of the middle trough body 6.
Furthermore, the pushing plate 1 and the support frame 2 are rotatably connected through a pin shaft 5, the pin shaft 5 penetrates through a pin hole I15 in the pushing plate 1 and a pin hole II 24 in the support frame 2 to fix the pushing plate 1 and the support frame 2, and the pushing plate 1 and the support frame 2 can rotate relatively by taking the pin shaft 5 as a fulcrum.
In order to adapt to the structure of the coal mining machine 8, the front section of the pushing plate 1 is a U-shaped groove I12, and the front end of the U-shaped groove I12 is welded on the middle groove body 6.
As shown in fig. 6-7, the support frame 2 includes a bottom plate 22, a rear section of the bottom plate 22 is tilted, a rear section of a middle portion of the bottom plate 22 is provided with a square notch (not marked in the figures), rib plates 23 are welded on two sides of the square notch above the bottom plate 22, front ends of the rib plates 23 are provided with pin holes ii 24, and an ear plate clamping seat 21 for fixing the piston rod 31 is arranged in the middle portion of the rib plates 23 near the square notch.
In order to avoid deformation caused by concentrated stress at the front end of the push plate 1 during working, a backing plate I9 is welded below the front section of the push plate 1 during working, and a backing plate II 10 is welded at the lower end of a push hole 11 of the push plate 1, so that the push plate push-pull strength is increased, and the support connector is convenient to mount.
In order to fix the guide block 4 and the lifting jack 3 better, the middle part of the guide block 4 is provided with a through hole II 42 for fixing the lifting jack 3 and a U-shaped groove II 41 for avoiding the joint of the lifting jack 3, and the U-shaped groove II 41 and the through hole II 42 are vertically arranged. Correspondingly, as shown in fig. 9, the lifting jack 3 is provided with a hose joint 32 and a trunnion 33, and a piston rod 31 thereof is further provided with a through hole i 34 for fixing. And a pin shaft II (not shown) penetrates through the lug plate clamping seat 21 and the through hole I34 on the piston rod 31 to fix the piston rod 31 on the support frame 2.
Preferably, the lifting jack 3 is a hydraulic jack.
Preferably, as shown in fig. 10, a connecting plate 16 is welded on the pushing plate 1 above the T-shaped groove 13, the connecting plate 16 is connected with the cable groove 7 through a bolt, and a hole for facilitating the up-and-down movement of the guide block 4 is formed on the connecting plate 16. The push plate 1 may be coupled to the cable groove 7 and the push plate 1 by bolts by providing screw holes on the side of the T-shaped groove 13.
The working process of the invention is as follows: as shown in fig. 4, the scraper conveyor not only undertakes the guiding and bearing tasks of the coal mining machine 8, but also is responsible for shoveling coal on the coal wall side of the working face, the thin coal seam scraper conveyor is light in weight, the center distance of the pushing hole 11 is lower than the ground, under the thrust action of the hydraulic support pushing rod on the middle groove, the ledge of the shovel plate of the scraper conveyor cannot be well attached to the bottom plate of the working face to move forwards, the distance from the pushing hole 11 of the shovel plate pushing plate 1 of the middle groove body 6 to the horizontal plane is 110cm, and the shovel plate of the middle groove body 6 is warped upwards. At the moment, the lifting jack 3 is started, the piston rod 31 extends, and the support frame 2 fixedly connected with the piston rod 31 is propped against the ground, so that one end of a fixed guide block 4 of the lifting jack 3 can move upwards, the lifting jack 3 can move upwards while propping against a cable trough 7, because a connecting plate 16 welded on the upper portion of a pushing plate 1 is connected onto the cable trough 7 through a bolt, the cable trough 7 can drive the rear section of the pushing plate 1 to move upwards, at the moment, the pushing plate 1 rotates anticlockwise by taking a pin shaft 5 as a central shaft, the front section of the pushing plate 1 can move downwards, because the pushing plate 1 is welded on a middle groove body 6, the middle groove body 6 drives a shovel plate to move downwards, namely, the shovel plate shovels downwards towards the horizontal plane, thereby realizing coal recovery and bottom plate leveling of a coal face, and preventing drifting. After the lifting jack 3 is lifted, the rear part of the middle groove body 6 is lifted, so that the distance from the pushing hole 11 to the horizontal plane is 128cm, the downward binding force of the conveyor is increased, and the coal recovery and the bottom plate leveling of the coal face are facilitated.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the invention, and these should be considered as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicability of the patent.
Claims (6)
1. Prevent that thin coal seam from scraping the hydraulic pressure of quick-witted middle part groove drift and raising device, its characterized in that: the middle-part groove type lifting device comprises a push plate (1), a support frame (2), a guide block (4) and a lifting jack (3), wherein the push plate (1), the support frame (2), the two push plates (1) and the lifting jack are welded on a middle groove body (6), the middle part of the support frame (2) is provided with two push plates (1) along the length direction of the middle groove body (6), the bottom end of the middle part of each push plate (1) is rotatably connected with the front end of the support frame (2), the tail part of each push plate (1) is provided with a push hole (11) for connecting with the support frame, the push plates (1) are provided with T-shaped grooves (13) for clamping the guide block (4), and the T-shaped grooves (13) are; the two sides of the lifting jack (3) are fixedly connected with guide blocks (4), the guide blocks (4) are integrally T-shaped, the lifting jack (3) is connected and limited between the two pushing plates (1) through the mutual matching of the guide blocks (4) connected with the lifting jack and a T-shaped groove (13), a piston rod (31) of the lifting jack (3) faces downwards when the lifting jack is limited, and the head of the piston rod (31) is fixed on the support frame (2); the pushing plate (1) is rotatably connected with the supporting frame (2) through a pin shaft (5); a cable groove (7) is connected above a T-shaped groove (13) on the push plate (1), a connecting plate (16) is welded above the T-shaped groove (13) on the push plate (1), the connecting plate (16) is connected with the cable groove (7) through a bolt, and a hole facilitating the up-and-down movement of the guide block (4) is formed in the connecting plate (16);
during operation, jack (3) is raised in the start, piston rod (31) extend, because support frame (2) with piston rod (31) rigid coupling pushes up ground, so the one end of fixed guide block (4) of jack (3) is raised can the upward movement, can push up cable duct (7) upward movement when raising jack (3) upward movement, because connecting plate (16) of thrust plate (1) upper portion welded passes through the bolt hookup on cable duct (7), cable duct (7) can drive thrust plate (1) back end upward movement, thrust plate (1) uses round pin axle (5) to rotate anticlockwise as the center pin this moment, the anterior segment of thrust plate (1) can the downstream, because thrust plate (1) welds on middle part cell body (6), middle part cell body (6) drive the shovel board downstream simultaneously.
2. The hydraulic lifting device for preventing the middle trough of the thin coal seam scraper from drifting is characterized in that: the front section of the pushing plate (1) is a U-shaped groove I (12), and the front end of the U-shaped groove I (12) is welded on the middle groove body (6).
3. The hydraulic lifting device for preventing the middle trough of the thin coal seam scraper from drifting is characterized in that: the support frame (2) comprises a bottom plate (22), the rear section of the bottom plate (22) is tilted, a square notch is formed in the rear half section of the middle of the bottom plate (22), rib plates (23) are welded on two sides of the square notch above the bottom plate (22), pin holes II (24) are formed in the front ends of the rib plates (23), and lug plate clamping seats (21) used for fixing piston rods (31) are arranged in the middle of the rib plates (23) close to the square notch.
4. The hydraulic lifting device for preventing the middle trough of the thin coal seam scraper from drifting is characterized in that: when the push plate is in work, a backing plate I (9) is welded below the front section of the push plate (1), and a backing plate II (10) is welded at the lower end of a push hole (11) of the push plate (1).
5. The hydraulic lifting device for preventing the middle trough of the thin coal seam scraper from drifting is characterized in that: the middle part of guide block (4) is equipped with through-hole II (42) that are used for fixed jack (3) of raising and dodges and raise II (41) U-shaped grooves of jack (3) joint, and vertical range about II (41) U-shaped grooves and through-hole II (42) are arranged.
6. The hydraulic lifting device for preventing the middle trough of the thin coal seam scraper from drifting is characterized in that: the lifting jack (3) is a hydraulic jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810675342.1A CN108868765B (en) | 2018-06-27 | 2018-06-27 | Hydraulic lifting device for preventing middle groove of thin coal seam scraper conveyor from drifting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810675342.1A CN108868765B (en) | 2018-06-27 | 2018-06-27 | Hydraulic lifting device for preventing middle groove of thin coal seam scraper conveyor from drifting |
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| Publication Number | Publication Date |
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| CN108868765A CN108868765A (en) | 2018-11-23 |
| CN108868765B true CN108868765B (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810675342.1A Active CN108868765B (en) | 2018-06-27 | 2018-06-27 | Hydraulic lifting device for preventing middle groove of thin coal seam scraper conveyor from drifting |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4571004A (en) * | 1982-11-30 | 1986-02-18 | Halbach & Braun Industrieanlagen | Mechanism for controlling the elevation of a coal planer |
| CN102120523A (en) * | 2010-01-08 | 2011-07-13 | 兖州煤业股份有限公司 | Slope adjusting device for middle trough of fully-mechanized scraper conveyor for thin seam |
| CN202451215U (en) * | 2012-02-21 | 2012-09-26 | 淮南长壁煤矿机械有限责任公司 | Device for preventing scraper conveyor from rolling bottom and drifting |
| CN103821557A (en) * | 2012-11-19 | 2014-05-28 | 林州重机集团股份有限公司 | Scraper conveyor for 60 DEG large dip angle thin seam fully-mechanized mining face |
-
2018
- 2018-06-27 CN CN201810675342.1A patent/CN108868765B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4571004A (en) * | 1982-11-30 | 1986-02-18 | Halbach & Braun Industrieanlagen | Mechanism for controlling the elevation of a coal planer |
| CN102120523A (en) * | 2010-01-08 | 2011-07-13 | 兖州煤业股份有限公司 | Slope adjusting device for middle trough of fully-mechanized scraper conveyor for thin seam |
| CN202451215U (en) * | 2012-02-21 | 2012-09-26 | 淮南长壁煤矿机械有限责任公司 | Device for preventing scraper conveyor from rolling bottom and drifting |
| CN103821557A (en) * | 2012-11-19 | 2014-05-28 | 林州重机集团股份有限公司 | Scraper conveyor for 60 DEG large dip angle thin seam fully-mechanized mining face |
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| CN108868765A (en) | 2018-11-23 |
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